Honor position attribute, i.e. allow first-in-field search. To
[idzebra-moved-to-github.git] / index / extract.c
index cd3369d..8189504 100644 (file)
@@ -1,6 +1,6 @@
-/* $Id: extract.c,v 1.130 2002-11-07 09:07:07 adam Exp $
-   Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002
-   Index Data Aps
+/* $Id: extract.c,v 1.229 2006-09-08 14:40:52 adam Exp $
+   Copyright (C) 1995-2006
+   Index Data ApS
 
 This file is part of the Zebra server.
 
@@ -15,30 +15,57 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
-along with Zebra; see the file LICENSE.zebra.  If not, write to the
-Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.
-*/
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
+*/
 
 #include <stdio.h>
 #include <assert.h>
+#include <ctype.h>
 #ifdef WIN32
 #include <io.h>
-#else
+#endif
+#if HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 #include <fcntl.h>
 
 #include "index.h"
+#include "orddict.h"
 #include <direntz.h>
 #include <charmap.h>
 
-#if _FILE_OFFSET_BITS == 64
-#define PRINTF_OFF_T "%Ld"
-#else
-#define PRINTF_OFF_T "%ld"
-#endif
+#define ENCODE_BUFLEN 768
+struct encode_info {
+    void *encode_handle;
+    void *decode_handle;
+    char buf[ENCODE_BUFLEN];
+};
+
+static int log_level = 0;
+static int log_level_initialized = 0;
+
+static void zebra_init_log_level()
+{
+    if (!log_level_initialized)
+    {
+        log_level = yaz_log_module_level("extract");
+        log_level_initialized = 1;
+    }
+}
+
+static void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
+                                     int cmd, zebra_rec_keys_t reckeys,
+                                     zint staticrank);
+static void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
+                                   int cmd, zebra_rec_keys_t skp);
+static void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid);
+static void extract_token_add (RecWord *p);
+
+static void encode_key_init (struct encode_info *i);
+static void encode_key_write (char *k, struct encode_info *i, FILE *outf);
+static void encode_key_flush (struct encode_info *i, FILE *outf);
 
 #define USE_SHELLSORT 0
 
@@ -72,271 +99,149 @@ static void logRecord (ZebraHandle zh)
     ++zh->records_processed;
     if (!(zh->records_processed % 1000))
     {
-        logf (LOG_LOG, "Records: %7d i/u/d %d/%d/%d", 
-              zh->records_processed, zh->records_inserted, zh->records_updated,
-              zh->records_deleted);
+        yaz_log(YLOG_LOG, "Records: "ZINT_FORMAT" i/u/d "
+                ZINT_FORMAT"/"ZINT_FORMAT"/"ZINT_FORMAT, 
+                zh->records_processed, zh->records_inserted, 
+                zh->records_updated, zh->records_deleted);
     }
 }
 
-static void extract_init (struct recExtractCtrl *p, RecWord *w)
+static void extract_add_index_string (RecWord *p, 
+                                      zinfo_index_category_t cat,
+                                      const char *str, int length);
+
+static void extract_set_store_data_prepare(struct recExtractCtrl *p);
+
+static void extract_init(struct recExtractCtrl *p, RecWord *w)
 {
-    w->zebra_maps = p->zebra_maps;
     w->seqno = 1;
-    w->attrSet = VAL_BIB1;
-    w->attrUse = 1016;
-    w->reg_type = 'w';
+    w->index_name = "any";
+    w->index_type = 'w';
     w->extractCtrl = p;
+    w->record_id = 0;
+    w->section_id = 0;
+    w->segment = 0;
 }
 
-static const char **searchRecordKey (ZebraHandle zh,
-                                     struct recKeys *reckeys,
-                                    int attrSetS, int attrUseS)
+static void searchRecordKey(ZebraHandle zh,
+                           zebra_rec_keys_t reckeys,
+                            const char *index_name,
+                           const char **ws, int ws_length)
 {
-    static const char *ws[32];
-    int off = 0;
-    int startSeq = -1;
     int i;
-    int seqno = 0;
-#if SU_SCHEME
-    int chS, ch;
-#else
-    short attrUse;
-    char attrSet;
-#endif
+    int ch = -1;
+    zinfo_index_category_t cat = zinfo_index_category_index;
 
-    for (i = 0; i<32; i++)
+    for (i = 0; i<ws_length; i++)
         ws[i] = NULL;
 
-#if SU_SCHEME
-    chS = zebraExplain_lookupSU (zh->reg->zei, attrSetS, attrUseS);
-    if (chS < 0)
-       return ws;
-#endif
-    while (off < reckeys->buf_used)
-    {
-
-        const char *src = reckeys->buf + off;
-       const char *wstart;
-        int lead;
-    
-        lead = *src++;
-#if SU_SCHEME
-       if ((lead & 3)<3)
-       {
-           memcpy (&ch, src, sizeof(ch));
-           src += sizeof(ch);
-       }
-#else
-        if (!(lead & 1))
-        {
-            memcpy (&attrSet, src, sizeof(attrSet));
-            src += sizeof(attrSet);
-        }
-        if (!(lead & 2))
-        {
-            memcpy (&attrUse, src, sizeof(attrUse));
-            src += sizeof(attrUse);
-        }
-#endif
-        wstart = src;
-        while (*src++)
-            ;
-        if (lead & 60)
-            seqno += ((lead>>2) & 15)-1;
-        else
-        {
-            memcpy (&seqno, src, sizeof(seqno));
-            src += sizeof(seqno);
-        }
-       if (
-#if SU_SCHEME
-           ch == chS
-#else
-           attrUseS == attrUse && attrSetS == attrSet
-#endif
-           )
-        {
-            int woff;
-
-
-            if (startSeq == -1)
-                startSeq = seqno;
-            woff = seqno - startSeq;
-            if (woff >= 0 && woff < 31)
-                ws[woff] = wstart;
-        }
-
-        off = src - reckeys->buf;
-    }
-    assert (off == reckeys->buf_used);
-    return ws;
-}
-
-struct file_read_info {
-    off_t file_max;        /* maximum offset so far */
-    off_t file_offset;      /* current offset */
-    off_t file_moffset;     /* offset of rec/rec boundary */
-    int file_more;
-    int fd;
-    char *sdrbuf;
-    int sdrmax;
-};
-
-static struct file_read_info *file_read_start (int fd)
-{
-    struct file_read_info *fi = (struct file_read_info *)
-       xmalloc (sizeof(*fi));
-
-    fi->fd = fd;
-    fi->file_max = 0;
-    fi->file_moffset = 0;
-    fi->sdrbuf = 0;
-    fi->sdrmax = 0;
-    return fi;
-}
-
-static void file_read_stop (struct file_read_info *fi)
-{
-    xfree (fi);
-}
-
-static off_t file_seek (void *handle, off_t offset)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
-    p->file_offset = offset;
-    if (p->sdrbuf)
-       return offset;
-    return lseek (p->fd, offset, SEEK_SET);
-}
+    if (ch < 0)
+        ch = zebraExplain_lookup_attr_str(zh->reg->zei, cat, '0', index_name);
+    if (ch < 0)
+        ch = zebraExplain_lookup_attr_str(zh->reg->zei, cat, 'p', index_name);
+    if (ch < 0)
+        ch = zebraExplain_lookup_attr_str(zh->reg->zei, cat, 'w', index_name);
 
-static off_t file_tell (void *handle)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
-    return p->file_offset;
-}
+    if (ch < 0)
+       return ;
 
-static int file_read (void *handle, char *buf, size_t count)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
-    int fd = p->fd;
-    int r;
-    if (p->sdrbuf)
+    if (zebra_rec_keys_rewind(reckeys))
     {
-       r = count;
-       if (r > p->sdrmax - p->file_offset)
-           r = p->sdrmax - p->file_offset;
-       if (r)
-           memcpy (buf, p->sdrbuf + p->file_offset, r);
-    }
-    else
-       r = read (fd, buf, count);
-    if (r > 0)
-    {
-        p->file_offset += r;
-        if (p->file_offset > p->file_max)
-            p->file_max = p->file_offset;
-    }
-    return r;
-}
-
-static void file_begin (void *handle)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
+       zint startSeq = -1;
+       const char *str;
+       size_t slen;
+       struct it_key key;
+       zint seqno;
+       while (zebra_rec_keys_read(reckeys, &str, &slen, &key))
+       {
+           assert(key.len <= IT_KEY_LEVEL_MAX && key.len > 2);
 
-    p->file_offset = p->file_moffset;
-    if (!p->sdrbuf && p->file_moffset)
-        lseek (p->fd, p->file_moffset, SEEK_SET);
-    p->file_more = 0;
+           seqno = key.mem[key.len-1];
+           
+           if (key.mem[0] == ch)
+           {
+               zint woff;
+               
+               if (startSeq == -1)
+                   startSeq = seqno;
+               woff = seqno - startSeq;
+               if (woff >= 0 && woff < ws_length)
+                   ws[woff] = str;
+           }
+       }
+    }
 }
 
-static void file_end (void *handle, off_t offset)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
-
-    assert (p->file_more == 0);
-    p->file_more = 1;
-    p->file_moffset = offset;
-}
+#define FILE_MATCH_BLANK "\t "
 
 static char *fileMatchStr (ZebraHandle zh,
-                           struct recKeys *reckeys, struct recordGroup *rGroup,
+                          zebra_rec_keys_t reckeys,
                            const char *fname, const char *spec)
 {
     static char dstBuf[2048];      /* static here ??? */
     char *dst = dstBuf;
     const char *s = spec;
-    static const char **w;
 
     while (1)
     {
-        while (*s == ' ' || *s == '\t')
-            s++;
+       for (; *s && strchr(FILE_MATCH_BLANK, *s); s++)
+           ;
         if (!*s)
             break;
         if (*s == '(')
         {
+           const char *ws[32];
            char attset_str[64], attname_str[64];
-           data1_attset *attset;
            int i;
-            char matchFlag[32];
-            int attSet = 1, attUse = 1;
             int first = 1;
-
-            s++;
-           for (i = 0; *s && *s != ',' && *s != ')'; s++)
-               if (i < 63)
+           
+           for (s++; strchr(FILE_MATCH_BLANK, *s); s++)
+               ;
+           for (i = 0; *s && *s != ',' && *s != ')' && 
+                    !strchr(FILE_MATCH_BLANK, *s); s++)
+               if (i+1 < sizeof(attset_str))
                    attset_str[i++] = *s;
            attset_str[i] = '\0';
-
-           if (*s == ',')
+           
+           for (; strchr(FILE_MATCH_BLANK, *s); s++)
+               ;
+           if (*s != ',')
+                strcpy(attname_str, attset_str);
+            else
            {
-               s++;
-               for (i = 0; *s && *s != ')'; s++)
-                   if (i < 63)
+               for (s++; strchr(FILE_MATCH_BLANK, *s); s++)
+                   ;
+               for (i = 0; *s && *s != ')' && 
+                        !strchr(FILE_MATCH_BLANK, *s); s++)
+                   if (i+1 < sizeof(attname_str))
                        attname_str[i++] = *s;
                attname_str[i] = '\0';
            }
-           
-           if ((attset = data1_get_attset (zh->reg->dh, attset_str)))
-           {
-               data1_att *att;
-               attSet = attset->reference;
-               att = data1_getattbyname(zh->reg->dh, attset, attname_str);
-               if (att)
-                   attUse = att->value;
-               else
-                   attUse = atoi (attname_str);
-           }
-            w = searchRecordKey (zh, reckeys, attSet, attUse);
-            assert (w);
 
-            if (*s == ')')
-            {
-                for (i = 0; i<32; i++)
-                    matchFlag[i] = 1;
-            }
-            else
+            searchRecordKey (zh, reckeys, attname_str, ws, 32);
+
+            if (*s != ')')
             {
-                logf (LOG_WARN, "Missing ) in match criteria %s in group %s",
-                      spec, rGroup->groupName ? rGroup->groupName : "none");
+                yaz_log (YLOG_WARN, "Missing ) in match criteria %s in group %s",
+                      spec, zh->m_group ? zh->m_group : "none");
                 return NULL;
             }
             s++;
 
             for (i = 0; i<32; i++)
-                if (matchFlag[i] && w[i])
+                if (ws[i])
                 {
                     if (first)
                     {
                         *dst++ = ' ';
                         first = 0;
                     }
-                    strcpy (dst, w[i]);
-                    dst += strlen(w[i]);
+                    strcpy (dst, ws[i]);
+                    dst += strlen(ws[i]);
                 }
             if (first)
             {
-                logf (LOG_WARN, "Record didn't contain match"
+                yaz_log (YLOG_WARN, "Record didn't contain match"
                       " fields in (%s,%s)", attset_str, attname_str);
                 return NULL;
             }
@@ -347,24 +252,25 @@ static char *fileMatchStr (ZebraHandle zh,
             char special[64];
             const char *spec_src = NULL;
             const char *s1 = ++s;
-            while (*s1 && *s1 != ' ' && *s1 != '\t')
+            while (*s1 && !strchr(FILE_MATCH_BLANK, *s1))
                 s1++;
 
             spec_len = s1 - s;
-            if (spec_len > 63)
-                spec_len = 63;
+            if (spec_len > sizeof(special)-1)
+                spec_len = sizeof(special)-1;
             memcpy (special, s, spec_len);
             special[spec_len] = '\0';
             s = s1;
 
             if (!strcmp (special, "group"))
-                spec_src = rGroup->groupName;
+                spec_src = zh->m_group;
             else if (!strcmp (special, "database"))
-                spec_src = rGroup->databaseName;
-            else if (!strcmp (special, "filename"))
+                spec_src = zh->basenames[0];
+            else if (!strcmp (special, "filename")) {
                 spec_src = fname;
+           }
             else if (!strcmp (special, "type"))
-                spec_src = rGroup->recordType;
+                spec_src = zh->m_record_type;
             else 
                 spec_src = NULL;
             if (spec_src)
@@ -381,7 +287,7 @@ static char *fileMatchStr (ZebraHandle zh,
 
             while (*s && *s != stopMarker)
             {
-                if (i < 63)
+                if (i+1 < sizeof(tmpString))
                     tmpString[i++] = *s++;
             }
             if (*s)
@@ -392,16 +298,16 @@ static char *fileMatchStr (ZebraHandle zh,
         }
         else
         {
-            logf (LOG_WARN, "Syntax error in match criteria %s in group %s",
-                  spec, rGroup->groupName ? rGroup->groupName : "none");
+            yaz_log (YLOG_WARN, "Syntax error in match criteria %s in group %s",
+                  spec, zh->m_group ? zh->m_group : "none");
             return NULL;
         }
         *dst++ = 1;
     }
     if (dst == dstBuf)
     {
-        logf (LOG_WARN, "No match criteria for record %s in group %s",
-              fname, rGroup->groupName ? rGroup->groupName : "none");
+        yaz_log (YLOG_WARN, "No match criteria for record %s in group %s",
+              fname, zh->m_group ? zh->m_group : "none");
         return NULL;
     }
     *dst = '\0';
@@ -413,344 +319,53 @@ struct recordLogInfo {
     int recordOffset;
     struct recordGroup *rGroup;
 };
-     
-static int recordExtract (ZebraHandle zh,
-                          SYSNO *sysno, const char *fname,
-                          struct recordGroup *rGroup, int deleteFlag,
-                          struct file_read_info *fi,
-                         RecType recType, char *subType, void *clientData)
-{
-    RecordAttr *recordAttr;
-    int r;
-    char *matchStr;
-    SYSNO sysnotmp;
-    Record rec;
-    off_t recordOffset = 0;
-
-    if (fi->fd != -1)
-    {
-       struct recExtractCtrl extractCtrl;
-
-        /* we are going to read from a file, so prepare the extraction */
-       int i;
-
-       zh->reg->keys.buf_used = 0;
-       zh->reg->keys.prevAttrUse = -1;
-       zh->reg->keys.prevAttrSet = -1;
-       zh->reg->keys.prevSeqNo = 0;
-       zh->reg->sortKeys.buf_used = 0;
-       zh->reg->sortKeys.buf_max = 0;
-       zh->reg->sortKeys.buf = 0;
-       
-       recordOffset = fi->file_moffset;
-       extractCtrl.offset = fi->file_moffset;
-       extractCtrl.readf = file_read;
-       extractCtrl.seekf = file_seek;
-       extractCtrl.tellf = file_tell;
-       extractCtrl.endf = file_end;
-       extractCtrl.fh = fi;
-       extractCtrl.subType = subType;
-       extractCtrl.init = extract_init;
-       extractCtrl.tokenAdd = extract_token_add;
-       extractCtrl.schemaAdd = extract_schema_add;
-       extractCtrl.dh = zh->reg->dh;
-        extractCtrl.handle = zh;
-       for (i = 0; i<256; i++)
-       {
-           if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
-               extractCtrl.seqno[i] = 1;
-           else
-               extractCtrl.seqno[i] = 0;
-       }
-       extractCtrl.zebra_maps = zh->reg->zebra_maps;
-       extractCtrl.flagShowRecords = !rGroup->flagRw;
-
-        if (!rGroup->flagRw)
-            printf ("File: %s " PRINTF_OFF_T "\n", fname, recordOffset);
-        if (rGroup->flagRw)
-        {
-            char msg[512];
-            sprintf (msg, "%s:" PRINTF_OFF_T , fname, recordOffset);
-            yaz_log_init_prefix2 (msg);
-        }
-
-        r = (*recType->extract)(clientData, &extractCtrl);
-
-        yaz_log_init_prefix2 (0);
-       if (r == RECCTRL_EXTRACT_EOF)
-           return 0;
-       else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
-       {
-            /* error occured during extraction ... */
-            if (rGroup->flagRw &&
-               zh->records_processed < rGroup->fileVerboseLimit)
-            {
-                logf (LOG_WARN, "fail %s %s " PRINTF_OFF_T, rGroup->recordType,
-                      fname, recordOffset);
-            }
-            return 0;
-        }
-       else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
-       {
-            /* error occured during extraction ... */
-            if (rGroup->flagRw &&
-               zh->records_processed < rGroup->fileVerboseLimit)
-            {
-                logf (LOG_WARN, "no filter for %s %s " 
-                      PRINTF_OFF_T, rGroup->recordType,
-                      fname, recordOffset);
-            }
-            return 0;
-        }
-        if (zh->reg->keys.buf_used == 0)
-        {
-            /* the extraction process returned no information - the record
-               is probably empty - unless flagShowRecords is in use */
-            if (!rGroup->flagRw)
-                return 1;
-           
-           logf (LOG_WARN, "empty %s %s " PRINTF_OFF_T, rGroup->recordType,
-                 fname, recordOffset);
-            return 1;
-        }
-    }
-
-    /* perform match if sysno not known and if match criteria is specified */
-       
-    matchStr = NULL;
-    if (!sysno) 
-    {
-        sysnotmp = 0;
-        sysno = &sysnotmp;
-        if (rGroup->recordId && *rGroup->recordId)
-        {
-            char *rinfo;
-        
-            matchStr = fileMatchStr (zh, &zh->reg->keys, rGroup, fname, 
-                                     rGroup->recordId);
-            if (matchStr)
-            {
-                rinfo = dict_lookup (zh->reg->matchDict, matchStr);
-                if (rinfo)
-                    memcpy (sysno, rinfo+1, sizeof(*sysno));
-            }
-            else
-            {
-                logf (LOG_WARN, "Bad match criteria");
-                return 0;
-            }
-        }
-    }
-
-    if (! *sysno)
-    {
-        /* new record */
-        if (deleteFlag)
-        {
-           logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T, rGroup->recordType,
-                 fname, recordOffset);
-            logf (LOG_WARN, "cannot delete record above (seems new)");
-            return 1;
-        }
-        if (zh->records_processed < rGroup->fileVerboseLimit)
-            logf (LOG_LOG, "add %s %s " PRINTF_OFF_T, rGroup->recordType,
-                  fname, recordOffset);
-        rec = rec_new (zh->reg->records);
-
-        *sysno = rec->sysno;
 
-       recordAttr = rec_init_attr (zh->reg->zei, rec);
-
-        if (matchStr)
-        {
-            dict_insert (zh->reg->matchDict, matchStr, sizeof(*sysno), sysno);
-        }
-       extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-        extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
-
-        zh->records_inserted++;
-    }
-    else
-    {
-        /* record already exists */
-        struct recKeys delkeys;
-        struct sortKeys sortKeys;
-
-        rec = rec_get (zh->reg->records, *sysno);
-        assert (rec);
-       
-       recordAttr = rec_init_attr (zh->reg->zei, rec);
-
-       if (recordAttr->runNumber ==
-            zebraExplain_runNumberIncrement (zh->reg->zei, 0))
-       {
-            yaz_log (LOG_LOG, "run number = %d", recordAttr->runNumber);
-           yaz_log (LOG_LOG, "skipped %s %s " PRINTF_OFF_T,
-                     rGroup->recordType, fname, recordOffset);
-           extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
-           rec_rm (&rec);
-           logRecord (zh);
-           return 1;
-       }
-        delkeys.buf_used = rec->size[recInfo_delKeys];
-       delkeys.buf = rec->info[recInfo_delKeys];
-
-        sortKeys.buf_used = rec->size[recInfo_sortKeys];
-        sortKeys.buf = rec->info[recInfo_sortKeys];
-
-       extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
-        extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
-        if (deleteFlag)
-        {
-            /* record going to be deleted */
-            if (!delkeys.buf_used)
-            {
-                logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T,
-                      rGroup->recordType, fname, recordOffset);
-                logf (LOG_WARN, "cannot delete file above, storeKeys false");
-            }
-            else
-            {
-                if (zh->records_processed < rGroup->fileVerboseLimit)
-                    logf (LOG_LOG, "delete %s %s " PRINTF_OFF_T,
-                         rGroup->recordType, fname, recordOffset);
-                zh->records_deleted++;
-                if (matchStr)
-                    dict_delete (zh->reg->matchDict, matchStr);
-                rec_del (zh->reg->records, &rec);
-            }
-           rec_rm (&rec);
-            logRecord (zh);
-            return 1;
-        }
-        else
-        {
-            /* record going to be updated */
-            if (!delkeys.buf_used)
-            {
-                logf (LOG_LOG, "update %s %s " PRINTF_OFF_T,
-                      rGroup->recordType, fname, recordOffset);
-                logf (LOG_WARN, "cannot update file above, storeKeys false");
-            }
-            else
-            {
-                if (zh->records_processed < rGroup->fileVerboseLimit)
-                    logf (LOG_LOG, "update %s %s " PRINTF_OFF_T,
-                        rGroup->recordType, fname, recordOffset);
-                extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-                extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
-                zh->records_updated++;
-            }
-        }
-    }
-    /* update file type */
-    xfree (rec->info[recInfo_fileType]);
-    rec->info[recInfo_fileType] =
-        rec_strdup (rGroup->recordType, &rec->size[recInfo_fileType]);
-
-    /* update filename */
-    xfree (rec->info[recInfo_filename]);
-    rec->info[recInfo_filename] =
-        rec_strdup (fname, &rec->size[recInfo_filename]);
-
-    /* update delete keys */
-    xfree (rec->info[recInfo_delKeys]);
-    if (zh->reg->keys.buf_used > 0 && rGroup->flagStoreKeys == 1)
-    {
-        rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
-        rec->info[recInfo_delKeys] = zh->reg->keys.buf;
-        zh->reg->keys.buf = NULL;
-        zh->reg->keys.buf_max = 0;
-    }
-    else
-    {
-        rec->info[recInfo_delKeys] = NULL;
-        rec->size[recInfo_delKeys] = 0;
-    }
-
-    /* update sort keys */
-    xfree (rec->info[recInfo_sortKeys]);
-
-    rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
-    rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
-    zh->reg->sortKeys.buf = NULL;
-    zh->reg->sortKeys.buf_max = 0;
-
-    /* save file size of original record */
-    zebraExplain_recordBytesIncrement (zh->reg->zei,
-                                       - recordAttr->recordSize);
-    recordAttr->recordSize = fi->file_moffset - recordOffset;
-    if (!recordAttr->recordSize)
-       recordAttr->recordSize = fi->file_max - recordOffset;
-    zebraExplain_recordBytesIncrement (zh->reg->zei,
-                                       recordAttr->recordSize);
-
-    /* set run-number for this record */
-    recordAttr->runNumber = zebraExplain_runNumberIncrement (zh->reg->zei,
-                                                             0);
-
-    /* update store data */
-    xfree (rec->info[recInfo_storeData]);
-    if (rGroup->flagStoreData == 1)
-    {
-        rec->size[recInfo_storeData] = recordAttr->recordSize;
-        rec->info[recInfo_storeData] = (char *)
-           xmalloc (recordAttr->recordSize);
-        if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
-        {
-            logf (LOG_ERRNO|LOG_FATAL, "seek to " PRINTF_OFF_T " in %s",
-                  recordOffset, fname);
-            exit (1);
-        }
-        if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
-           < recordAttr->recordSize)
-        {
-            logf (LOG_ERRNO|LOG_FATAL, "read %d bytes of %s",
-                  recordAttr->recordSize, fname);
-            exit (1);
-        }
-    }
-    else
+static void init_extractCtrl(ZebraHandle zh, struct recExtractCtrl *ctrl)
+{
+    int i;
+    for (i = 0; i<256; i++)
     {
-        rec->info[recInfo_storeData] = NULL;
-        rec->size[recInfo_storeData] = 0;
+       if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
+           ctrl->seqno[i] = 1;
+       else
+           ctrl->seqno[i] = 0;
     }
-    /* update database name */
-    xfree (rec->info[recInfo_databaseName]);
-    rec->info[recInfo_databaseName] =
-        rec_strdup (rGroup->databaseName, &rec->size[recInfo_databaseName]); 
+    ctrl->flagShowRecords = !zh->m_flag_rw;
+}
 
-    /* update offset */
-    recordAttr->recordOffset = recordOffset;
-    
-    /* commit this record */
-    rec_put (zh->reg->records, &rec);
-    logRecord (zh);
-    return 1;
+static void all_matches_add(struct recExtractCtrl *ctrl)
+{
+    RecWord word;
+    extract_init(ctrl, &word);
+    word.index_name = "_ALLRECORDS";
+    word.index_type = 'w';
+    word.seqno = 1;
+    extract_add_index_string (&word, zinfo_index_category_alwaysmatches,
+                              "", 0);
 }
 
-int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname, 
-                 const struct recordGroup *rGroupP, int deleteFlag)
+ZEBRA_RES zebra_extract_file(ZebraHandle zh, SYSNO *sysno, const char *fname, 
+                            int deleteFlag)
 {
-    int r, i, fd;
+    ZEBRA_RES r = ZEBRA_OK;
+    int i, fd;
     char gprefix[128];
     char ext[128];
     char ext_res[128];
-    char subType[128];
+    struct file_read_info *fi = 0;
+    const char *original_record_type = 0;
     RecType recType;
-    struct recordGroup rGroupM;
-    struct recordGroup *rGroup = &rGroupM;
-    struct file_read_info *fi;
-    void *clientData;
+    void *recTypeClientData;
+    struct ZebraRecStream stream, *streamp;
+
+    zebra_init_log_level();
 
-    memcpy (rGroup, rGroupP, sizeof(*rGroupP));
-   
-    if (!rGroup->groupName || !*rGroup->groupName)
+    if (!zh->m_group || !*zh->m_group)
         *gprefix = '\0';
     else
-        sprintf (gprefix, "%s.", rGroup->groupName);
-
-    logf (LOG_DEBUG, "fileExtract %s", fname);
+        sprintf (gprefix, "%s.", zh->m_group);
+    
+    yaz_log(log_level, "zebra_extract_file %s", fname);
 
     /* determine file extension */
     *ext = '\0';
@@ -763,101 +378,45 @@ int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
             break;
         }
     /* determine file type - depending on extension */
-    if (!rGroup->recordType)
+    original_record_type = zh->m_record_type;
+    if (!zh->m_record_type)
     {
         sprintf (ext_res, "%srecordType.%s", gprefix, ext);
-        if (!(rGroup->recordType = res_get (zh->res, ext_res)))
-        {
-            sprintf (ext_res, "%srecordType", gprefix);
-            rGroup->recordType = res_get (zh->res, ext_res);
-        }
+        zh->m_record_type = res_get (zh->res, ext_res);
     }
-    if (!rGroup->recordType)
+    if (!zh->m_record_type)
     {
-        if (zh->records_processed < rGroup->fileVerboseLimit)
-            logf (LOG_LOG, "? %s", fname);
+       if (zh->records_processed < zh->m_file_verbose_limit)
+            yaz_log (YLOG_LOG, "? %s", fname);
         return 0;
     }
-    if (!*rGroup->recordType)
-       return 0;
-    if (!(recType =
-         recType_byName (zh->reg->recTypes, rGroup->recordType, subType,
-                         &clientData)))
-    {
-        logf (LOG_WARN, "No such record type: %s", rGroup->recordType);
-        return 0;
-    }
-
     /* determine match criteria */
-    if (!rGroup->recordId)
+    if (!zh->m_record_id)
     {
         sprintf (ext_res, "%srecordId.%s", gprefix, ext);
-        rGroup->recordId = res_get (zh->res, ext_res);
-    }
-
-    /* determine database name */
-    if (!rGroup->databaseName)
-    {
-        sprintf (ext_res, "%sdatabase.%s", gprefix, ext);
-        if (!(rGroup->databaseName = res_get (zh->res, ext_res)))
-        {
-            sprintf (ext_res, "%sdatabase", gprefix);
-            rGroup->databaseName = res_get (zh->res, ext_res);
-        }
+        zh->m_record_id = res_get (zh->res, ext_res);
     }
-    if (!rGroup->databaseName)
-        rGroup->databaseName = "Default";
-
-    /* determine if explain database */
-    
-    sprintf (ext_res, "%sexplainDatabase", gprefix);
-    rGroup->explainDatabase =
-       atoi (res_get_def (zh->res, ext_res, "0"));
 
-    /* announce database */
-    if (zebraExplain_curDatabase (zh->reg->zei, rGroup->databaseName))
+    if (!(recType =
+         recType_byName (zh->reg->recTypes, zh->res, zh->m_record_type,
+                         &recTypeClientData)))
     {
-        if (zebraExplain_newDatabase (zh->reg->zei, rGroup->databaseName,
-                                     rGroup->explainDatabase))
-           return 0;
+        yaz_log(YLOG_WARN, "No such record type: %s", zh->m_record_type);
+        return ZEBRA_FAIL;
     }
 
-    if (rGroup->flagStoreData == -1)
+    switch(recType->version)
     {
-        const char *sval;
-        sprintf (ext_res, "%sstoreData.%s", gprefix, ext);
-        if (!(sval = res_get (zh->res, ext_res)))
-        {
-            sprintf (ext_res, "%sstoreData", gprefix);
-            sval = res_get (zh->res, ext_res);
-        }
-        if (sval)
-            rGroup->flagStoreData = atoi (sval);
+    case 0:
+       break;
+    default:
+       yaz_log(YLOG_WARN, "Bad filter version: %s", zh->m_record_type);
     }
-    if (rGroup->flagStoreData == -1)
-        rGroup->flagStoreData = 0;
-
-    if (rGroup->flagStoreKeys == -1)
+    if (sysno && deleteFlag)
     {
-        const char *sval;
-
-        sprintf (ext_res, "%sstoreKeys.%s", gprefix, ext);
-        sval = res_get (zh->res, ext_res);
-       if (!sval)
-        {
-            sprintf (ext_res, "%sstoreKeys", gprefix);
-            sval = res_get (zh->res, ext_res);
-        }
-       if (!sval)
-           sval = res_get (zh->res, "storeKeys");
-        if (sval)
-            rGroup->flagStoreKeys = atoi (sval);
+        streamp = 0;
+        fi = 0;
     }
-    if (rGroup->flagStoreKeys == -1)
-        rGroup->flagStoreKeys = 0;
-
-    if (sysno && deleteFlag)
-        fd = -1;
     else
     {
         char full_rep[1024];
@@ -871,225 +430,335 @@ int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
         else
             strcpy (full_rep, fname);
         
-
         if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
         {
-            logf (LOG_WARN|LOG_ERRNO, "open %s", full_rep);
-            return 0;
+            yaz_log (YLOG_WARN|YLOG_ERRNO, "open %s", full_rep);
+           zh->m_record_type = original_record_type;
+            return ZEBRA_FAIL;
         }
+        streamp = &stream;
+        zebra_create_stream_fd(streamp, fd, 0);
+    }
+    while(1)
+    {
+        r = zebra_extract_record_stream(zh, streamp,
+                                        deleteFlag,
+                                        0, /* tst_mode */
+                                        zh->m_record_type,
+                                        sysno,
+                                        0, /*match_criteria */
+                                        fname,
+                                        1, /* force_update */
+                                        1, /* allow_update */
+                                        recType, recTypeClientData);
+       if (r != ZEBRA_OK)
+       {
+           break;
+       }
+       if (sysno)
+       {
+           break;
+       }
     }
-    fi = file_read_start (fd);
-    do
-    {
-        file_begin (fi);
-        r = recordExtract (zh, sysno, fname, rGroup, deleteFlag, fi,
-                           recType, subType, clientData);
-    } while (r && !sysno && fi->file_more);
-    file_read_stop (fi);
-    if (fd != -1)
-        close (fd);
+    if (streamp)
+        stream.destroy(streamp);
+    zh->m_record_type = original_record_type;
     return r;
 }
 
+/*
+  If sysno is provided, then it's used to identify the reocord.
+  If not, and match_criteria is provided, then sysno is guessed
+  If not, and a record is provided, then sysno is got from there
+  
+ */
 
-int extract_rec_in_mem (ZebraHandle zh, const char *recordType,
-                        const char *buf, size_t buf_size,
-                        const char *databaseName, int delete_flag,
-                        int test_mode, int *sysno,
-                        int store_keys, int store_data,
-                        const char *match_criteria)
+ZEBRA_RES zebra_buffer_extract_record(ZebraHandle zh, 
+                                      const char *buf, size_t buf_size,
+                                      int delete_flag,
+                                      int test_mode, 
+                                      const char *recordType,
+                                      SYSNO *sysno,
+                                      const char *match_criteria,
+                                      const char *fname,
+                                      int force_update,
+                                      int allow_update)
 {
-    RecordAttr *recordAttr;
-    struct recExtractCtrl extractCtrl;
-    int i, r;
-    char *matchStr = 0;
-    RecType recType;
-    char subType[1024];
+    struct ZebraRecStream stream;
+    ZEBRA_RES res;
     void *clientData;
-    const char *fname = "<no file>";
-    Record rec;
-    long recordOffset = 0;
-    struct zebra_fetch_control fc;
-
-    fc.fd = -1;
-    fc.record_int_buf = buf;
-    fc.record_int_len = buf_size;
-    fc.record_int_pos = 0;
-    fc.offset_end = 0;
-    fc.record_offset = 0;
-
-    extractCtrl.offset = 0;
-    extractCtrl.readf = zebra_record_int_read;
-    extractCtrl.seekf = zebra_record_int_seek;
-    extractCtrl.tellf = zebra_record_int_tell;
-    extractCtrl.endf = zebra_record_int_end;
-    extractCtrl.fh = &fc;
-
-    /* announce database */
-    if (zebraExplain_curDatabase (zh->reg->zei, databaseName))
+    RecType recType = 0;
+
+    if (recordType && *recordType)
+    {
+        yaz_log(log_level, "Record type explicitly specified: %s", recordType);
+        recType = recType_byName (zh->reg->recTypes, zh->res, recordType,
+                                  &clientData);
+    } 
+    else
     {
-        if (zebraExplain_newDatabase (zh->reg->zei, databaseName, 0))
-           return 0;
+        if (!(zh->m_record_type))
+       {
+            yaz_log (YLOG_WARN, "No such record type defined");
+            return ZEBRA_FAIL;
+        }
+        yaz_log(log_level, "Get record type from rgroup: %s",
+                zh->m_record_type);
+        recType = recType_byName (zh->reg->recTypes, zh->res,
+                                 zh->m_record_type, &clientData);
+        recordType = zh->m_record_type;
     }
-    if (!(recType =
-         recType_byName (zh->reg->recTypes, recordType, subType,
-                         &clientData)))
+    
+    if (!recType)
     {
-        logf (LOG_WARN, "No such record type: %s", recordType);
-        return 0;
+        yaz_log (YLOG_WARN, "No such record type: %s", recordType);
+        return ZEBRA_FAIL;
     }
 
-    zh->reg->keys.buf_used = 0;
-    zh->reg->keys.prevAttrUse = -1;
-    zh->reg->keys.prevAttrSet = -1;
-    zh->reg->keys.prevSeqNo = 0;
-    zh->reg->sortKeys.buf_used = 0;
-    zh->reg->sortKeys.buf_max = 0;
-    zh->reg->sortKeys.buf = 0;
 
-    extractCtrl.subType = subType;
-    extractCtrl.init = extract_init;
-    extractCtrl.tokenAdd = extract_token_add;
-    extractCtrl.schemaAdd = extract_schema_add;
-    extractCtrl.dh = zh->reg->dh;
-    extractCtrl.handle = zh;
-    extractCtrl.zebra_maps = zh->reg->zebra_maps;
-    extractCtrl.flagShowRecords = 0;
-    for (i = 0; i<256; i++)
-    {
-       if (zebra_maps_is_positioned(zh->reg->zebra_maps, i))
-           extractCtrl.seqno[i] = 1;
-       else
-           extractCtrl.seqno[i] = 0;
-    }
 
-    r = (*recType->extract)(clientData, &extractCtrl);
+    zebra_create_stream_mem(&stream, buf, buf_size);
+
+    res = zebra_extract_record_stream(zh, &stream,
+                                      delete_flag,
+                                      test_mode, 
+                                      recordType,
+                                      sysno,
+                                      match_criteria,
+                                      fname,
+                                      force_update,
+                                      allow_update,
+                                      recType, clientData);
+    stream.destroy(&stream);
+    return res;
+}
 
-    if (r == RECCTRL_EXTRACT_EOF)
-       return 0;
-    else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
+
+ZEBRA_RES zebra_extract_record_stream(ZebraHandle zh, 
+                                      struct ZebraRecStream *stream,
+                                      int delete_flag,
+                                      int test_mode, 
+                                      const char *recordType,
+                                      SYSNO *sysno,
+                                      const char *match_criteria,
+                                      const char *fname,
+                                      int force_update,
+                                      int allow_update,
+                                      RecType recType,
+                                      void *recTypeClientData)
+
+{
+    SYSNO sysno0 = 0;
+    RecordAttr *recordAttr;
+    struct recExtractCtrl extractCtrl;
+    int r;
+    const char *matchStr = 0;
+    Record rec;
+    off_t start_offset = 0;
+    const char *pr_fname = fname;  /* filename to print .. */
+    int show_progress = zh->records_processed < zh->m_file_verbose_limit ? 1:0;
+
+    zebra_init_log_level();
+
+    if (!pr_fname)
+       pr_fname = "<no file>";  /* make it printable if file is omitted */
+
+    zebra_rec_keys_reset(zh->reg->keys);
+    zebra_rec_keys_reset(zh->reg->sortKeys);
+
+    if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
     {
-       /* error occured during extraction ... */
-       yaz_log (LOG_WARN, "extract error: generic");
-       return 0;
+        if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0], 
+                                     zh->m_explain_database))
+            return ZEBRA_FAIL;
     }
-    else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
+
+    if (stream)
     {
-       /* error occured during extraction ... */
-       yaz_log (LOG_WARN, "extract error: no such filter");
-       return 0;
+        off_t null_offset = 0;
+        extractCtrl.stream = stream;
+
+        start_offset = stream->tellf(stream);
+
+        extractCtrl.first_record = start_offset ? 0 : 1;
+        
+        stream->endf(stream, &null_offset);;
+
+        extractCtrl.init = extract_init;
+        extractCtrl.tokenAdd = extract_token_add;
+        extractCtrl.schemaAdd = extract_schema_add;
+        extractCtrl.dh = zh->reg->dh;
+        extractCtrl.handle = zh;
+        extractCtrl.match_criteria[0] = '\0';
+        extractCtrl.staticrank = 0;
+
+    
+        init_extractCtrl(zh, &extractCtrl);
+        
+        extract_set_store_data_prepare(&extractCtrl);
+        
+        r = (*recType->extract)(recTypeClientData, &extractCtrl);
+        
+        if (r == RECCTRL_EXTRACT_EOF)
+            return ZEBRA_FAIL;
+        else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
+        {
+            /* error occured during extraction ... */
+            yaz_log (YLOG_WARN, "extract error: generic");
+            return ZEBRA_FAIL;
+        }
+        else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
+        {
+            /* error occured during extraction ... */
+            yaz_log (YLOG_WARN, "extract error: no such filter");
+            return ZEBRA_FAIL;
+        }
+        
+        all_matches_add(&extractCtrl);
+        
+        if (extractCtrl.match_criteria[0])
+            match_criteria = extractCtrl.match_criteria;
     }
-    if (zh->reg->keys.buf_used == 0)
+    if (!sysno) {
+
+       sysno = &sysno0;
+
+        if (match_criteria && *match_criteria) {
+            matchStr = match_criteria;
+        } else {
+            if (zh->m_record_id && *zh->m_record_id) {
+                matchStr = fileMatchStr (zh, zh->reg->keys, pr_fname, 
+                                         zh->m_record_id);
+               if (!matchStr)
+                {
+                    yaz_log (YLOG_WARN, "Bad match criteria (recordID)");
+                   return ZEBRA_FAIL;
+                }
+            }
+        }
+        if (matchStr) 
+       {
+           int db_ord = zebraExplain_get_database_ord(zh->reg->zei);
+           char *rinfo = dict_lookup_ord(zh->reg->matchDict, db_ord,
+                                         matchStr);
+            if (rinfo)
+           {
+               assert(*rinfo == sizeof(*sysno));
+                memcpy (sysno, rinfo+1, sizeof(*sysno));
+           }
+        }
+    }
+    if (zebra_rec_keys_empty(zh->reg->keys))
     {
        /* the extraction process returned no information - the record
           is probably empty - unless flagShowRecords is in use */
        if (test_mode)
-           return 1;
-       logf (LOG_WARN, "No keys generated for record");
-       logf (LOG_WARN, " The file is probably empty");
-       return 1;
+           return ZEBRA_OK;
     }
-    /* match criteria */
 
     if (! *sysno)
     {
         /* new record */
         if (delete_flag)
         {
-           logf (LOG_LOG, "delete %s %s %ld", recordType,
-                 fname, (long) recordOffset);
-            logf (LOG_WARN, "cannot delete record above (seems new)");
-            return 1;
+           yaz_log (YLOG_LOG, "delete %s %s " ZINT_FORMAT, recordType,
+                        pr_fname, (zint) start_offset);
+            yaz_log (YLOG_WARN, "cannot delete record above (seems new)");
+            return ZEBRA_FAIL;
         }
-       logf (LOG_LOG, "add %s %s %ld", recordType, fname,
-             (long) recordOffset);
+       if (show_progress)
+           yaz_log (YLOG_LOG, "add %s %s " ZINT_FORMAT, recordType, pr_fname,
+                    (zint) start_offset);
         rec = rec_new (zh->reg->records);
 
         *sysno = rec->sysno;
 
        recordAttr = rec_init_attr (zh->reg->zei, rec);
+       recordAttr->staticrank = extractCtrl.staticrank;
 
         if (matchStr)
         {
-            dict_insert (zh->reg->matchDict, matchStr,
-                         sizeof(*sysno), sysno);
+           int db_ord = zebraExplain_get_database_ord(zh->reg->zei);
+            dict_insert_ord(zh->reg->matchDict, db_ord, matchStr,
+                           sizeof(*sysno), sysno);
         }
-       extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-        extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
 
+
+       extract_flushSortKeys (zh, *sysno, 1, zh->reg->sortKeys);
+        extract_flushRecordKeys (zh, *sysno, 1, zh->reg->keys,
+                        recordAttr->staticrank);
         zh->records_inserted++;
-    }
+    } 
     else
     {
         /* record already exists */
-        struct recKeys delkeys;
-        struct sortKeys sortKeys;
+       zebra_rec_keys_t delkeys = zebra_rec_keys_open();
+       zebra_rec_keys_t sortKeys = zebra_rec_keys_open();
+       if (!allow_update)
+       {
+           yaz_log (YLOG_LOG, "skipped %s %s " ZINT_FORMAT, 
+                        recordType, pr_fname, (zint) start_offset);
+           logRecord(zh);
+           return ZEBRA_FAIL;
+       }
 
         rec = rec_get (zh->reg->records, *sysno);
         assert (rec);
        
        recordAttr = rec_init_attr (zh->reg->zei, rec);
 
-       if (recordAttr->runNumber ==
-           zebraExplain_runNumberIncrement (zh->reg->zei, 0))
-       {
-           logf (LOG_LOG, "skipped %s %s %ld", recordType,
-                 fname, (long) recordOffset);
-           extract_flushSortKeys (zh, *sysno, -1, &zh->reg->sortKeys);
-           rec_rm (&rec);
-            logRecord(zh);
-           return 1;
-       }
-        delkeys.buf_used = rec->size[recInfo_delKeys];
-       delkeys.buf = rec->info[recInfo_delKeys];
-
-        sortKeys.buf_used = rec->size[recInfo_sortKeys];
-        sortKeys.buf = rec->info[recInfo_sortKeys];
-
-       extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
-        extract_flushRecordKeys (zh, *sysno, 0, &delkeys);
+       zebra_rec_keys_set_buf(delkeys,
+                              rec->info[recInfo_delKeys],
+                              rec->size[recInfo_delKeys],
+                              0);
+       zebra_rec_keys_set_buf(sortKeys,
+                              rec->info[recInfo_sortKeys],
+                              rec->size[recInfo_sortKeys],
+                              0);
+
+       extract_flushSortKeys (zh, *sysno, 0, sortKeys);
+        extract_flushRecordKeys (zh, *sysno, 0, delkeys,
+                                recordAttr->staticrank);
         if (delete_flag)
         {
             /* record going to be deleted */
-            if (!delkeys.buf_used)
+            if (zebra_rec_keys_empty(delkeys))
             {
-                logf (LOG_LOG, "delete %s %s %ld", recordType,
-                      fname, (long) recordOffset);
-                logf (LOG_WARN, "cannot delete file above, storeKeys false");
-            }
+               yaz_log(YLOG_LOG, "delete %s %s " ZINT_FORMAT, recordType,
+                        pr_fname, (zint) start_offset);
+               yaz_log(YLOG_WARN, "cannot delete file above, "
+                        "storeKeys false (3)");
+           }
             else
             {
-               logf (LOG_LOG, "delete %s %s %ld", recordType,
-                     fname, (long) recordOffset);
+               if (show_progress)
+                   yaz_log(YLOG_LOG, "delete %s %s " ZINT_FORMAT, recordType,
+                            pr_fname, (zint) start_offset);
                 zh->records_deleted++;
-#if 0
                 if (matchStr)
-                    dict_delete (matchDict, matchStr);
-#endif
+               {
+                   int db_ord = zebraExplain_get_database_ord(zh->reg->zei);
+                    dict_delete_ord(zh->reg->matchDict, db_ord, matchStr);
+               }
                 rec_del (zh->reg->records, &rec);
             }
            rec_rm (&rec);
             logRecord(zh);
-            return 1;
+            return ZEBRA_OK;
         }
         else
         {
-            /* record going to be updated */
-            if (!delkeys.buf_used)
-            {
-                logf (LOG_LOG, "update %s %s %ld", recordType,
-                      fname, (long) recordOffset);
-                logf (LOG_WARN, "cannot update file above, storeKeys false");
-            }
-            else
-            {
-               logf (LOG_LOG, "update %s %s %ld", recordType,
-                     fname, (long) recordOffset);
-                extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-                extract_flushRecordKeys (zh, *sysno, 1, &zh->reg->keys);
-                zh->records_updated++;
-            }
+           if (show_progress)
+                   yaz_log(YLOG_LOG, "update %s %s " ZINT_FORMAT, recordType,
+                            pr_fname, (zint) ZINT_FORMAT);
+           recordAttr->staticrank = extractCtrl.staticrank;
+            extract_flushSortKeys (zh, *sysno, 1, zh->reg->sortKeys);
+            extract_flushRecordKeys (zh, *sysno, 1, zh->reg->keys, 
+                                        recordAttr->staticrank);
+            zh->records_updated++;
         }
+       zebra_rec_keys_close(delkeys);
+       zebra_rec_keys_close(sortKeys);
     }
     /* update file type */
     xfree (rec->info[recInfo_fileType]);
@@ -1103,39 +772,40 @@ int extract_rec_in_mem (ZebraHandle zh, const char *recordType,
 
     /* update delete keys */
     xfree (rec->info[recInfo_delKeys]);
-    if (zh->reg->keys.buf_used > 0 && store_keys == 1)
+    if (!zebra_rec_keys_empty(zh->reg->keys) && zh->m_store_keys == 1)
     {
-        rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
-        rec->info[recInfo_delKeys] = zh->reg->keys.buf;
-        zh->reg->keys.buf = NULL;
-        zh->reg->keys.buf_max = 0;
+       zebra_rec_keys_get_buf(zh->reg->keys,
+                              &rec->info[recInfo_delKeys],
+                              &rec->size[recInfo_delKeys]);
     }
     else
     {
         rec->info[recInfo_delKeys] = NULL;
         rec->size[recInfo_delKeys] = 0;
     }
-
     /* update sort keys */
     xfree (rec->info[recInfo_sortKeys]);
 
-    rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
-    rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
-    zh->reg->sortKeys.buf = NULL;
-    zh->reg->sortKeys.buf_max = 0;
+    zebra_rec_keys_get_buf(zh->reg->sortKeys,
+                          &rec->info[recInfo_sortKeys],
+                          &rec->size[recInfo_sortKeys]);
 
     /* save file size of original record */
     zebraExplain_recordBytesIncrement (zh->reg->zei,
                                       - recordAttr->recordSize);
-#if 0
-    recordAttr->recordSize = fi->file_moffset - recordOffset;
-    if (!recordAttr->recordSize)
-       recordAttr->recordSize = fi->file_max - recordOffset;
-#else
-    recordAttr->recordSize = buf_size;
-#endif
-    zebraExplain_recordBytesIncrement (zh->reg->zei,
-                                      recordAttr->recordSize);
+    if (stream)
+    {
+        off_t end_offset = stream->endf(stream, 0);
+
+        if (!end_offset)
+            end_offset = stream->tellf(stream);
+        else
+            stream->seekf(stream, end_offset);
+
+        recordAttr->recordSize = end_offset - start_offset;
+        zebraExplain_recordBytesIncrement(zh->reg->zei,
+                                          recordAttr->recordSize);
+    }
 
     /* set run-number for this record */
     recordAttr->runNumber =
@@ -1143,28 +813,25 @@ int extract_rec_in_mem (ZebraHandle zh, const char *recordType,
 
     /* update store data */
     xfree (rec->info[recInfo_storeData]);
-    if (store_data == 1)
+
+    /* update store data */
+    if (zh->store_data_buf)
+    {
+        rec->size[recInfo_storeData] = zh->store_data_size;
+        rec->info[recInfo_storeData] = zh->store_data_buf;
+       zh->store_data_buf = 0;
+    }
+    else if (zh->m_store_data)
     {
+        off_t cur_offset = stream->tellf(stream);
+
         rec->size[recInfo_storeData] = recordAttr->recordSize;
         rec->info[recInfo_storeData] = (char *)
            xmalloc (recordAttr->recordSize);
-#if 1
-        memcpy (rec->info[recInfo_storeData], buf, recordAttr->recordSize);
-#else
-        if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
-        {
-            logf (LOG_ERRNO|LOG_FATAL, "seek to %ld in %s",
-                  (long) recordOffset, fname);
-            exit (1);
-        }
-        if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
-           < recordAttr->recordSize)
-        {
-            logf (LOG_ERRNO|LOG_FATAL, "read %d bytes of %s",
-                  recordAttr->recordSize, fname);
-            exit (1);
-        }
-#endif
+        stream->seekf(stream, start_offset);
+        stream->readf(stream, rec->info[recInfo_storeData],
+                      recordAttr->recordSize);
+        stream->seekf(stream, cur_offset);
     }
     else
     {
@@ -1174,23 +841,21 @@ int extract_rec_in_mem (ZebraHandle zh, const char *recordType,
     /* update database name */
     xfree (rec->info[recInfo_databaseName]);
     rec->info[recInfo_databaseName] =
-        rec_strdup (databaseName, &rec->size[recInfo_databaseName]); 
+        rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]); 
 
     /* update offset */
-    recordAttr->recordOffset = recordOffset;
+    recordAttr->recordOffset = start_offset;
     
     /* commit this record */
     rec_put (zh->reg->records, &rec);
-
     logRecord(zh);
-    return 0;
+    return ZEBRA_OK;
 }
 
-int explain_extract (void *handle, Record rec, data1_node *n)
+ZEBRA_RES zebra_extract_explain(void *handle, Record rec, data1_node *n)
 {
     ZebraHandle zh = (ZebraHandle) handle;
     struct recExtractCtrl extractCtrl;
-    int i;
 
     if (zebraExplain_curDatabase (zh->reg->zei,
                                  rec->info[recInfo_databaseName]))
@@ -1201,75 +866,128 @@ int explain_extract (void *handle, Record rec, data1_node *n)
             abort ();
     }
 
-    zh->reg->keys.buf_used = 0;
-    zh->reg->keys.prevAttrUse = -1;
-    zh->reg->keys.prevAttrSet = -1;
-    zh->reg->keys.prevSeqNo = 0;
-    zh->reg->sortKeys.buf_used = 0;
-    
+    zebra_rec_keys_reset(zh->reg->keys);
+    zebra_rec_keys_reset(zh->reg->sortKeys);
+
     extractCtrl.init = extract_init;
     extractCtrl.tokenAdd = extract_token_add;
     extractCtrl.schemaAdd = extract_schema_add;
     extractCtrl.dh = zh->reg->dh;
-    for (i = 0; i<256; i++)
-       extractCtrl.seqno[i] = 0;
-    extractCtrl.zebra_maps = zh->reg->zebra_maps;
+
+    init_extractCtrl(zh, &extractCtrl);
+
     extractCtrl.flagShowRecords = 0;
+    extractCtrl.match_criteria[0] = '\0';
+    extractCtrl.staticrank = 0;
     extractCtrl.handle = handle;
+    extractCtrl.first_record = 1;
     
-    grs_extract_tree(&extractCtrl, n);
+    extract_set_store_data_prepare(&extractCtrl);
+
+    if (n)
+       grs_extract_tree(&extractCtrl, n);
 
     if (rec->size[recInfo_delKeys])
     {
-       struct recKeys delkeys;
-       struct sortKeys sortkeys;
+       zebra_rec_keys_t delkeys = zebra_rec_keys_open();
+       
+       zebra_rec_keys_t sortkeys = zebra_rec_keys_open();
 
-       delkeys.buf_used = rec->size[recInfo_delKeys];
-       delkeys.buf = rec->info[recInfo_delKeys];
+       zebra_rec_keys_set_buf(delkeys, rec->info[recInfo_delKeys],
+                              rec->size[recInfo_delKeys],
+                              0);
+       extract_flushRecordKeys (zh, rec->sysno, 0, delkeys, 0);
+       zebra_rec_keys_close(delkeys);
 
-       sortkeys.buf_used = rec->size[recInfo_sortKeys];
-       sortkeys.buf = rec->info[recInfo_sortKeys];
+       zebra_rec_keys_set_buf(sortkeys, rec->info[recInfo_sortKeys],
+                              rec->size[recInfo_sortKeys],
+                              0);
 
-       extract_flushSortKeys (zh, rec->sysno, 0, &sortkeys);
-       extract_flushRecordKeys (zh, rec->sysno, 0, &delkeys);
+       extract_flushSortKeys (zh, rec->sysno, 0, sortkeys);
+       zebra_rec_keys_close(sortkeys);
     }
-    extract_flushRecordKeys (zh, rec->sysno, 1, &zh->reg->keys);
-    extract_flushSortKeys (zh, rec->sysno, 1, &zh->reg->sortKeys);
+    extract_flushRecordKeys (zh, rec->sysno, 1, zh->reg->keys, 0);
+    extract_flushSortKeys (zh, rec->sysno, 1, zh->reg->sortKeys);
 
     xfree (rec->info[recInfo_delKeys]);
-    rec->size[recInfo_delKeys] = zh->reg->keys.buf_used;
-    rec->info[recInfo_delKeys] = zh->reg->keys.buf;
-    zh->reg->keys.buf = NULL;
-    zh->reg->keys.buf_max = 0;
+    zebra_rec_keys_get_buf(zh->reg->keys,
+                          &rec->info[recInfo_delKeys], 
+                          &rec->size[recInfo_delKeys]);
 
     xfree (rec->info[recInfo_sortKeys]);
-    rec->size[recInfo_sortKeys] = zh->reg->sortKeys.buf_used;
-    rec->info[recInfo_sortKeys] = zh->reg->sortKeys.buf;
-    zh->reg->sortKeys.buf = NULL;
-    zh->reg->sortKeys.buf_max = 0;
+    zebra_rec_keys_get_buf(zh->reg->sortKeys,
+                          &rec->info[recInfo_sortKeys],
+                          &rec->size[recInfo_sortKeys]);
+    return ZEBRA_OK;
+}
+
+void extract_rec_keys_adjust(ZebraHandle zh, int is_insert,
+                             zebra_rec_keys_t reckeys)
+{
+    ZebraExplainInfo zei = zh->reg->zei;
+    struct ord_stat {
+        int no;
+        int ord;
+        struct ord_stat *next;
+    };
+
+    if (zebra_rec_keys_rewind(reckeys))
+    {
+        struct ord_stat *ord_list = 0;
+        struct ord_stat *p;
+       size_t slen;
+       const char *str;
+       struct it_key key_in;
+       while(zebra_rec_keys_read(reckeys, &str, &slen, &key_in))
+        {
+            int ord = CAST_ZINT_TO_INT(key_in.mem[0]);
+
+            for (p = ord_list; p ; p = p->next)
+                if (p->ord == ord)
+                {
+                    p->no++;
+                    break;
+                }
+            if (!p)
+            {
+                p = xmalloc(sizeof(*p));
+                p->no = 1;
+                p->ord = ord;
+                p->next = ord_list;
+                ord_list = p;
+            }
+        }
+
+        p = ord_list;
+        while (p)
+        {
+            struct ord_stat *p1 = p;
 
-    return 0;
+            if (is_insert)
+                zebraExplain_ord_adjust_occurrences(zei, p->ord, p->no, 1);
+            else
+                zebraExplain_ord_adjust_occurrences(zei, p->ord, - p->no, -1);
+            p = p->next;
+            xfree(p1);
+        }
+    }
 }
 
 void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
-                              int cmd, struct recKeys *reckeys)
+                              int cmd,
+                             zebra_rec_keys_t reckeys,
+                             zint staticrank)
 {
-#if SU_SCHEME
-#else
-    unsigned char attrSet = (unsigned char) -1;
-    unsigned short attrUse = (unsigned short) -1;
-#endif
-    int seqno = 0;
-    int off = 0;
-    int ch = 0;
     ZebraExplainInfo zei = zh->reg->zei;
 
+    extract_rec_keys_adjust(zh, cmd, reckeys);
+
     if (!zh->reg->key_buf)
     {
        int mem= 1024*1024* atoi( res_get_def( zh->res, "memmax", "8"));
        if (mem <= 0)
        {
-           logf(LOG_WARN, "Invalid memory setting, using default 8 MB");
+           yaz_log(YLOG_WARN, "Invalid memory setting, using default 8 MB");
            mem= 1024*1024*8;
        }
        /* FIXME: That "8" should be in a default settings include */
@@ -1281,97 +999,137 @@ void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
        zh->reg->key_file_no = 0;
     }
     zebraExplain_recordCountIncrement (zei, cmd ? 1 : -1);
-    while (off < reckeys->buf_used)
-    {
-        const char *src = reckeys->buf + off;
-        struct it_key key;
-        int lead;
-    
-        lead = *src++;
 
-#if SU_SCHEME
-       if ((lead & 3) < 3)
+    if (zebra_rec_keys_rewind(reckeys))
+    {
+       size_t slen;
+       const char *str;
+       struct it_key key_in;
+       while(zebra_rec_keys_read(reckeys, &str, &slen, &key_in))
        {
-           memcpy (&ch, src, sizeof(ch));
-           src += sizeof(ch);
+           int ch = 0;
+            int i, j = 0;
+           struct it_key key_out;
+
+           assert(key_in.len >= 2);
+            assert(key_in.len <= IT_KEY_LEVEL_MAX);
+           
+           /* check for buffer overflow */
+           if (zh->reg->key_buf_used + 1024 > 
+               (zh->reg->ptr_top -zh->reg->ptr_i)*sizeof(char*))
+               extract_flushWriteKeys (zh, 0);
+           
+           ++(zh->reg->ptr_i);
+           assert(zh->reg->ptr_i > 0);
+           (zh->reg->key_buf)[zh->reg->ptr_top - zh->reg->ptr_i] =
+               (char*)zh->reg->key_buf + zh->reg->key_buf_used;
+
+            /* key_in.mem[0] ord/ch */
+            /* key_in.mem[1] filter specified record ID */
+
+           /* encode the ordinal value (field/use/attribute) .. */
+           ch = CAST_ZINT_TO_INT(key_in.mem[0]);
+           zh->reg->key_buf_used +=
+               key_SU_encode(ch, (char*)zh->reg->key_buf +
+                             zh->reg->key_buf_used);
+
+           /* copy the 0-terminated stuff from str to output */
+           memcpy((char*)zh->reg->key_buf + zh->reg->key_buf_used, str, slen);
+           zh->reg->key_buf_used += slen;
+           ((char*)zh->reg->key_buf)[(zh->reg->key_buf_used)++] = '\0';
+
+           /* the delete/insert indicator */
+           ((char*)zh->reg->key_buf)[(zh->reg->key_buf_used)++] = cmd;
+
+           if (zh->m_staticrank) /* rank config enabled ? */
+           {
+               if (staticrank < 0)
+               {
+                   yaz_log(YLOG_WARN, "staticrank = %ld. Setting to 0",
+                           (long) staticrank);
+                   staticrank = 0;
+               }
+                key_out.mem[j++] = staticrank;
+           }
+           
+           if (key_in.mem[1]) /* filter specified record ID */
+               key_out.mem[j++] = key_in.mem[1];
+           else
+               key_out.mem[j++] = sysno;
+            for (i = 2; i < key_in.len; i++)
+                key_out.mem[j++] = key_in.mem[i];
+           key_out.len = j;
+
+           memcpy((char*)zh->reg->key_buf + zh->reg->key_buf_used,
+                  &key_out, sizeof(key_out));
+           (zh->reg->key_buf_used) += sizeof(key_out);
        }
-#else
-        if (!(lead & 1))
-        {
-            memcpy (&attrSet, src, sizeof(attrSet));
-            src += sizeof(attrSet);
-        }
-        if (!(lead & 2))
-        {
-            memcpy (&attrUse, src, sizeof(attrUse));
-            src += sizeof(attrUse);
-        }
-#endif
-        if (zh->reg->key_buf_used + 1024 > 
-            (zh->reg->ptr_top -zh->reg->ptr_i)*sizeof(char*))
-            extract_flushWriteKeys (zh);
-        ++(zh->reg->ptr_i);
-        (zh->reg->key_buf)[zh->reg->ptr_top - zh->reg->ptr_i] =
-           (char*)zh->reg->key_buf + zh->reg->key_buf_used;
-#if SU_SCHEME
-#else
-        ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
-        if (ch < 0)
-            ch = zebraExplain_addSU (zei, attrSet, attrUse);
-#endif
-        assert (ch > 0);
-       zh->reg->key_buf_used +=
-           key_SU_encode (ch,((char*)zh->reg->key_buf) +
-                           zh->reg->key_buf_used);
-
-        while (*src)
-            ((char*)zh->reg->key_buf) [(zh->reg->key_buf_used)++] = *src++;
-        src++;
-        ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = '\0';
-        ((char*)(zh->reg->key_buf))[(zh->reg->key_buf_used)++] = cmd;
-
-        if (lead & 60)
-            seqno += ((lead>>2) & 15)-1;
-        else
-        {
-            memcpy (&seqno, src, sizeof(seqno));
-            src += sizeof(seqno);
-        }
-        key.seqno = seqno;
-        key.sysno = sysno;
-        memcpy ((char*)zh->reg->key_buf + zh->reg->key_buf_used, &key, sizeof(key));
-        (zh->reg->key_buf_used) += sizeof(key);
-        off = src - reckeys->buf;
     }
-    assert (off == reckeys->buf_used);
 }
 
-void extract_flushWriteKeys (ZebraHandle zh)
+void extract_flushWriteKeys (ZebraHandle zh, int final)
+        /* optimizing: if final=1, and no files written yet */
+        /* push the keys directly to merge, sidestepping the */
+        /* temp file altogether. Speeds small updates */
 {
     FILE *outf;
     char out_fname[200];
     char *prevcp, *cp;
     struct encode_info encode_info;
     int ptr_i = zh->reg->ptr_i;
+    int temp_policy;
 #if SORT_EXTRA
     int i;
 #endif
     if (!zh->reg->key_buf || ptr_i <= 0)
+    {
+        yaz_log(log_level, "  nothing to flush section=%d buf=%p i=%d",
+               zh->reg->key_file_no, zh->reg->key_buf, ptr_i);
         return;
+    }
 
     (zh->reg->key_file_no)++;
-    logf (LOG_LOG, "sorting section %d", (zh->reg->key_file_no));
+    yaz_log (YLOG_LOG, "sorting section %d", (zh->reg->key_file_no));
+    yaz_log(log_level, "  sort_buff at %p n=%d",
+                    zh->reg->key_buf + zh->reg->ptr_top - ptr_i,ptr_i);
 #if !SORT_EXTRA
     qsort (zh->reg->key_buf + zh->reg->ptr_top - ptr_i, ptr_i,
                sizeof(char*), key_qsort_compare);
+
+    /* zebra.cfg: tempfiles:  
+       Y: always use temp files (old way) 
+       A: use temp files, if more than one (auto) 
+          = if this is both the last and the first 
+       N: never bother with temp files (new) */
+
+    temp_policy=toupper(res_get_def(zh->res,"tempfiles","auto")[0]);
+    if (temp_policy != 'Y' && temp_policy != 'N' && temp_policy != 'A') {
+        yaz_log (YLOG_WARN, "Illegal tempfiles setting '%c'. using 'Auto' ", 
+                        temp_policy);
+        temp_policy='A';
+    }
+
+    if (   ( temp_policy =='N' )   ||     /* always from memory */
+         ( ( temp_policy =='A' ) &&       /* automatic */
+             (zh->reg->key_file_no == 1) &&  /* this is first time */
+             (final) ) )                     /* and last (=only) time */
+    { /* go directly from memory */
+        zh->reg->key_file_no =0; /* signal not to read files */
+        zebra_index_merge(zh); 
+        zh->reg->ptr_i = 0;
+        zh->reg->key_buf_used = 0; 
+        return; 
+    }
+
+    /* Not doing directly from memory, write into a temp file */
     extract_get_fname_tmp (zh, out_fname, zh->reg->key_file_no);
 
     if (!(outf = fopen (out_fname, "wb")))
     {
-        logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
+        yaz_log (YLOG_FATAL|YLOG_ERRNO, "fopen %s", out_fname);
         exit (1);
     }
-    logf (LOG_LOG, "writing section %d", zh->reg->key_file_no);
+    yaz_log (YLOG_LOG, "writing section %d", zh->reg->key_file_no);
     prevcp = cp = (zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
     
     encode_key_init (&encode_info);
@@ -1397,10 +1155,10 @@ void extract_flushWriteKeys (ZebraHandle zh)
 
     if (!(outf = fopen (out_fname, "wb")))
     {
-        logf (LOG_FATAL|LOG_ERRNO, "fopen %s", out_fname);
+        yaz_log (YLOG_FATAL|YLOG_ERRNO, "fopen %s", out_fname);
         exit (1);
     }
-    logf (LOG_LOG, "writing section %d", key_file_no);
+    yaz_log (YLOG_LOG, "writing section %d", key_file_no);
     i = ptr_i;
     prevcp =  key_buf[ptr_top-i];
     while (1)
@@ -1408,7 +1166,7 @@ void extract_flushWriteKeys (ZebraHandle zh)
         {
             key_y_len = strlen(prevcp)+1;
 #if 0
-            logf (LOG_LOG, "key_y_len: %2d %02x %02x %s",
+            yaz_log (YLOG_LOG, "key_y_len: %2d %02x %02x %s",
                       key_y_len, prevcp[0], prevcp[1], 2+prevcp);
 #endif
             qsort (key_buf + ptr_top-ptr_i, ptr_i - i,
@@ -1430,154 +1188,166 @@ void extract_flushWriteKeys (ZebraHandle zh)
 #endif
     if (fclose (outf))
     {
-        logf (LOG_FATAL|LOG_ERRNO, "fclose %s", out_fname);
+        yaz_log (YLOG_FATAL|YLOG_ERRNO, "fclose %s", out_fname);
         exit (1);
     }
-    logf (LOG_LOG, "finished section %d", zh->reg->key_file_no);
+    yaz_log (YLOG_LOG, "finished section %d", zh->reg->key_file_no);
     zh->reg->ptr_i = 0;
     zh->reg->key_buf_used = 0;
 }
 
-void extract_add_index_string (RecWord *p, const char *string,
-                               int length)
+ZEBRA_RES zebra_snippets_rec_keys(ZebraHandle zh,
+                                 zebra_rec_keys_t reckeys,
+                                 zebra_snippets *snippets)
 {
-    char *dst;
-    unsigned char attrSet;
-    unsigned short attrUse;
-    int lead = 0;
-    int diff = 0;
-    int *pseqno = &p->seqno;
-    ZebraHandle zh = p->extractCtrl->handle;
-    ZebraExplainInfo zei = zh->reg->zei;
-    struct recKeys *keys = &zh->reg->keys;
-    
-    if (keys->buf_used+1024 > keys->buf_max)
+    NMEM nmem = nmem_create();
+    if (zebra_rec_keys_rewind(reckeys)) 
     {
-        char *b;
-
-        b = (char *) xmalloc (keys->buf_max += 128000);
-        if (keys->buf_used > 0)
-            memcpy (b, keys->buf, keys->buf_used);
-        xfree (keys->buf);
-        keys->buf = b;
+       const char *str;
+       size_t slen;
+       struct it_key key;
+       while (zebra_rec_keys_read(reckeys, &str, &slen, &key))
+       {
+           char dst_buf[IT_MAX_WORD];
+           char *dst_term = dst_buf;
+           int ord;
+            zint seqno;
+           int index_type;
+
+           assert(key.len <= IT_KEY_LEVEL_MAX && key.len > 2);
+           seqno = key.mem[key.len-1];
+           ord = CAST_ZINT_TO_INT(key.mem[0]);
+           
+           zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type,
+                                   0/* db */, 0 /* string_index */);
+           assert(index_type);
+           zebra_term_untrans_iconv(zh, nmem, index_type,
+                                    &dst_term, str);
+           zebra_snippets_append(snippets, seqno, ord, dst_term);
+           nmem_reset(nmem);
+       }
     }
-    dst = keys->buf + keys->buf_used;
-
-    attrSet = p->attrSet;
-    if (keys->buf_used > 0 && keys->prevAttrSet == attrSet)
-        lead |= 1;
-    else
-        keys->prevAttrSet = attrSet;
-    attrUse = p->attrUse;
-    if (keys->buf_used > 0 && keys->prevAttrUse == attrUse)
-        lead |= 2;
-    else
-        keys->prevAttrUse = attrUse;
-#if 1
-    diff = 1 + *pseqno - keys->prevSeqNo;
-    if (diff >= 1 && diff <= 15)
-        lead |= (diff << 2);
-    else
-        diff = 0;
-#endif
-    keys->prevSeqNo = *pseqno;
-    
-    *dst++ = lead;
+    nmem_destroy(nmem);
+    return ZEBRA_OK;
+}
 
-#if SU_SCHEME
-    if ((lead & 3) < 3)
-    {
-        int ch = zebraExplain_lookupSU (zei, attrSet, attrUse);
-        if (ch < 0)
-        {
-            ch = zebraExplain_addSU (zei, attrSet, attrUse);
-            yaz_log (LOG_DEBUG, "addSU set=%d use=%d SU=%d",
-                     attrSet, attrUse, ch);
-        }
-       assert (ch > 0);
-       memcpy (dst, &ch, sizeof(ch));
-       dst += sizeof(ch);
-    }
-#else
-    if (!(lead & 1))
-    {
-        memcpy (dst, &attrSet, sizeof(attrSet));
-        dst += sizeof(attrSet);
-    }
-    if (!(lead & 2))
+void print_rec_keys(ZebraHandle zh, zebra_rec_keys_t reckeys)
+{
+    yaz_log(YLOG_LOG, "print_rec_keys");
+    if (zebra_rec_keys_rewind(reckeys))
     {
-        memcpy (dst, &attrUse, sizeof(attrUse));
-        dst += sizeof(attrUse);
+       const char *str;
+       size_t slen;
+       struct it_key key;
+       while (zebra_rec_keys_read(reckeys, &str, &slen, &key))
+       {
+           char dst_buf[IT_MAX_WORD];
+           zint seqno;
+           int index_type;
+            int ord = CAST_ZINT_TO_INT(key.mem[0]);
+           const char *db = 0;
+           assert(key.len <= IT_KEY_LEVEL_MAX && key.len > 2);
+
+           zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type, &db, 0);
+           
+           seqno = key.mem[key.len-1];
+           
+           zebra_term_untrans(zh, index_type, dst_buf, str);
+           
+           yaz_log(YLOG_LOG, "ord=%d seqno=" ZINT_FORMAT 
+                    " term=%s", ord, seqno, dst_buf); 
+       }
     }
-#endif
-    *dst++ = p->reg_type;
-    memcpy (dst, string, length);
-    dst += length;
-    *dst++ = '\0';
+}
 
-    if (!diff)
-    {
-        memcpy (dst, pseqno, sizeof(*pseqno));
-        dst += sizeof(*pseqno);
-    }
-    keys->buf_used = dst - keys->buf;
+static void extract_add_index_string(RecWord *p, zinfo_index_category_t cat,
+                                     const char *str, int length)
+{
+    struct it_key key;
+    ZebraHandle zh = p->extractCtrl->handle;
+    ZebraExplainInfo zei = zh->reg->zei;
+    int ch, i;
+
+    ch = zebraExplain_lookup_attr_str(zei, cat, p->index_type, p->index_name);
+    if (ch < 0)
+        ch = zebraExplain_add_attr_str(zei, cat, p->index_type, p->index_name);
+
+    i = 0;
+    key.mem[i++] = ch;
+    key.mem[i++] = p->record_id;
+    key.mem[i++] = p->section_id;
+
+    if (zh->m_segment_indexing)
+        key.mem[i++] = p->segment;
+    key.mem[i++] = p->seqno;
+    key.len = i;
+
+    zebra_rec_keys_write(zh->reg->keys, str, length, &key);
 }
 
-static void extract_add_sort_string (RecWord *p, const char *string,
-                                    int length)
+static void extract_add_sort_string(RecWord *p, const char *str, int length)
 {
+    struct it_key key;
     ZebraHandle zh = p->extractCtrl->handle;
-    struct sortKeys *sk = &zh->reg->sortKeys;
-    size_t off = 0;
+    ZebraExplainInfo zei = zh->reg->zei;
+    int ch;
+    zinfo_index_category_t cat = zinfo_index_category_sort;
 
-    while (off < sk->buf_used)
-    {
-        int set, use, slen;
-
-        off += key_SU_decode(&set, sk->buf + off);
-        off += key_SU_decode(&use, sk->buf + off);
-        off += key_SU_decode(&slen, sk->buf + off);
-        off += slen;
-        if (p->attrSet == set && p->attrUse == use)
-            return;
-    }
-    assert (off == sk->buf_used);
-    
-    if (sk->buf_used + IT_MAX_WORD > sk->buf_max)
-    {
-        char *b;
-        
-        b = (char *) xmalloc (sk->buf_max += 128000);
-        if (sk->buf_used > 0)
-            memcpy (b, sk->buf, sk->buf_used);
-        xfree (sk->buf);
-        sk->buf = b;
-    }
-    off += key_SU_encode(p->attrSet, sk->buf + off);
-    off += key_SU_encode(p->attrUse, sk->buf + off);
-    off += key_SU_encode(length, sk->buf + off);
-    memcpy (sk->buf + off, string, length);
-    sk->buf_used = off + length;
+    ch = zebraExplain_lookup_attr_str(zei, cat, p->index_type, p->index_name);
+    if (ch < 0)
+        ch = zebraExplain_add_attr_str(zei, cat, p->index_type, p->index_name);
+    key.len = 2;
+    key.mem[0] = ch;
+    key.mem[1] = p->record_id;
+
+    zebra_rec_keys_write(zh->reg->sortKeys, str, length, &key);
 }
 
-void extract_add_string (RecWord *p, const char *string, int length)
+static void extract_add_string(RecWord *p, const char *string, int length)
 {
+    ZebraHandle zh = p->extractCtrl->handle;
     assert (length > 0);
-    if (zebra_maps_is_sort (p->zebra_maps, p->reg_type))
-       extract_add_sort_string (p, string, length);
+
+    if (!p->index_name)
+        return;
+
+    if (zebra_maps_is_sort(zh->reg->zebra_maps, p->index_type))
+       extract_add_sort_string(p, string, length);
     else
-       extract_add_index_string (p, string, length);
+    {
+       extract_add_index_string(p, zinfo_index_category_index,
+                                 string, length);
+        if (zebra_maps_is_alwaysmatches(zh->reg->zebra_maps, p->index_type))
+        {
+            RecWord word;
+            memcpy(&word, p, sizeof(word));
+
+            word.seqno = 1;
+            extract_add_index_string(
+                &word, zinfo_index_category_alwaysmatches, "", 0);
+        }
+    }
 }
 
-static void extract_add_incomplete_field (RecWord *p)
+static void extract_add_incomplete_field(RecWord *p)
 {
-    const char *b = p->string;
-    int remain = p->length;
+    ZebraHandle zh = p->extractCtrl->handle;
+    const char *b = p->term_buf;
+    int remain = p->term_len;
     const char **map = 0;
-
+    
     if (remain > 0)
-       map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+       map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b, remain, 0);
 
+    if (map)
+    {   
+        if (zebra_maps_is_first_in_field(zh->reg->zebra_maps, p->index_type))
+        {
+             /* first in field marker */
+            extract_add_string(p, FIRST_IN_FIELD_STR, FIRST_IN_FIELD_LEN);
+            p->seqno++;
+        }
+    }
     while (map)
     {
        char buf[IT_MAX_WORD+1];
@@ -1586,9 +1356,10 @@ static void extract_add_incomplete_field (RecWord *p)
        /* Skip spaces */
        while (map && *map && **map == *CHR_SPACE)
        {
-           remain = p->length - (b - p->string);
+           remain = p->term_len - (b - p->term_buf);
            if (remain > 0)
-               map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+               map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b,
+                                      remain, 0);
            else
                map = 0;
        }
@@ -1601,9 +1372,9 @@ static void extract_add_incomplete_field (RecWord *p)
 
            while (i < IT_MAX_WORD && *cp)
                buf[i++] = *(cp++);
-           remain = p->length - (b - p->string);
+           remain = p->term_len - (b - p->term_buf);
            if (remain > 0)
-               map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+               map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b, remain, 0);
            else
                map = 0;
        }
@@ -1616,21 +1387,26 @@ static void extract_add_incomplete_field (RecWord *p)
 
 static void extract_add_complete_field (RecWord *p)
 {
-    const char *b = p->string;
+    ZebraHandle zh = p->extractCtrl->handle;
+    const char *b = p->term_buf;
     char buf[IT_MAX_WORD+1];
     const char **map = 0;
-    int i = 0, remain = p->length;
+    int i = 0, remain = p->term_len;
 
     if (remain > 0)
-       map = zebra_maps_input (p->zebra_maps, p->reg_type, &b, remain);
+       map = zebra_maps_input (zh->reg->zebra_maps, p->index_type, &b, remain, 1);
 
     while (remain > 0 && i < IT_MAX_WORD)
     {
        while (map && *map && **map == *CHR_SPACE)
        {
-           remain = p->length - (b - p->string);
+           remain = p->term_len - (b - p->term_buf);
+
            if (remain > 0)
-               map = zebra_maps_input(p->zebra_maps, p->reg_type, &b, remain);
+           {
+               int first = i ? 0 : 1;  /* first position */
+               map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b, remain, first);
+           }
            else
                map = 0;
        }
@@ -1643,14 +1419,23 @@ static void extract_add_complete_field (RecWord *p)
        {
            const char *cp = *map;
 
-           if (i >= IT_MAX_WORD)
-               break;
-           while (i < IT_MAX_WORD && *cp)
-               buf[i++] = *(cp++);
-           remain = p->length  - (b - p->string);
+           if (**map == *CHR_CUT)
+           {
+               i = 0;
+           }
+           else
+           {
+               if (i >= IT_MAX_WORD)
+                   break;
+               while (i < IT_MAX_WORD && *cp)
+                   buf[i++] = *(cp++);
+           }
+           remain = p->term_len  - (b - p->term_buf);
            if (remain > 0)
-               map = zebra_maps_input (p->zebra_maps, p->reg_type, &b,
-                                       remain);
+           {
+               map = zebra_maps_input (zh->reg->zebra_maps, p->index_type, &b,
+                                       remain, 0);
+           }
            else
                map = 0;
        }
@@ -1660,221 +1445,147 @@ static void extract_add_complete_field (RecWord *p)
     extract_add_string (p, buf, i);
 }
 
-void extract_token_add (RecWord *p)
+static void extract_token_add(RecWord *p)
 {
+    ZebraHandle zh = p->extractCtrl->handle;
     WRBUF wrbuf;
-    if ((wrbuf = zebra_replace(p->zebra_maps, p->reg_type, 0,
-                              p->string, p->length)))
+
+    if (log_level)
+    {
+        yaz_log(log_level, "extract_token_add "
+                "type=%c index=%s seqno=" ZINT_FORMAT " s=%.*s",
+                p->index_type, p->index_name, 
+                p->seqno, p->term_len, p->term_buf);
+    }
+    if ((wrbuf = zebra_replace(zh->reg->zebra_maps, p->index_type, 0,
+                              p->term_buf, p->term_len)))
     {
-       p->string = wrbuf_buf(wrbuf);
-       p->length = wrbuf_len(wrbuf);
+       p->term_buf = wrbuf_buf(wrbuf);
+       p->term_len = wrbuf_len(wrbuf);
     }
-    if (zebra_maps_is_complete (p->zebra_maps, p->reg_type))
+    if (zebra_maps_is_complete (zh->reg->zebra_maps, p->index_type))
        extract_add_complete_field (p);
     else
        extract_add_incomplete_field(p);
 }
 
-void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
-{
-    ZebraHandle zh = (ZebraHandle) (p->handle);
-    zebraExplain_addSchema (zh->reg->zei, oid);
-}
-
-void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
-                            int cmd, struct sortKeys *sk)
+static void extract_set_store_data_cb(struct recExtractCtrl *p,
+                                     void *buf, size_t sz)
 {
-    SortIdx sortIdx = zh->reg->sortIdx;
-    size_t off = 0;
+    ZebraHandle zh = (ZebraHandle) p->handle;
 
-    sortIdx_sysno (sortIdx, sysno);
-
-    while (off < sk->buf_used)
+    xfree(zh->store_data_buf);
+    zh->store_data_buf = 0;
+    zh->store_data_size = 0;
+    if (buf && sz)
     {
-        int set, use, slen, l;
-        
-        off += key_SU_decode(&set, sk->buf + off);
-        off += key_SU_decode(&use, sk->buf + off);
-        off += key_SU_decode(&slen, sk->buf + off);
-        
-        sortIdx_type(sortIdx, use);
-        if (cmd == 1)
-            sortIdx_add(sortIdx, sk->buf + off, slen);
-        else
-            sortIdx_add(sortIdx, "", 1);
-        off += slen;
+       zh->store_data_buf = xmalloc(sz);
+       zh->store_data_size = sz;
+       memcpy(zh->store_data_buf, buf, sz);
     }
 }
 
-void encode_key_init (struct encode_info *i)
+static void extract_set_store_data_prepare(struct recExtractCtrl *p)
 {
-    i->sysno = 0;
-    i->seqno = 0;
-    i->cmd = -1;
-    i->prevsys=0;
-    i->prevseq=0;
-    i->prevcmd=-1;
-    i->keylen=0;
+    ZebraHandle zh = (ZebraHandle) p->handle;
+    xfree(zh->store_data_buf);
+    zh->store_data_buf = 0;
+    zh->store_data_size = 0;
+    p->setStoreData = extract_set_store_data_cb;
 }
 
-char *encode_key_int (int d, char *bp)
+static void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
 {
-    if (d <= 63)
-        *bp++ = d;
-    else if (d <= 16383)
-    {
-        *bp++ = 64 + (d>>8);
-        *bp++ = d  & 255;
-    }
-    else if (d <= 4194303)
-    {
-        *bp++ = 128 + (d>>16);
-        *bp++ = (d>>8) & 255;
-        *bp++ = d & 255;
-    }
-    else
-    {
-        *bp++ = 192 + (d>>24);
-        *bp++ = (d>>16) & 255;
-        *bp++ = (d>>8) & 255;
-        *bp++ = d & 255;
-    }
-    return bp;
+    ZebraHandle zh = (ZebraHandle) p->handle;
+    zebraExplain_addSchema (zh->reg->zei, oid);
 }
 
-#ifdef OLDENCODE
-/* this is the old encode_key_write 
- * may be deleted once we are confident that the new works
- * HL 15-oct-2002
- */
-void encode_key_write (char *k, struct encode_info *i, FILE *outf)
+void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
+                            int cmd, zebra_rec_keys_t reckeys)
 {
-    struct it_key key;
-    char *bp = i->buf;
-
-    while ((*bp++ = *k++))
-        ;
-    memcpy (&key, k+1, sizeof(struct it_key));
-    bp = encode_key_int ( (key.sysno - i->sysno) * 2 + *k, bp);
-    if (i->sysno != key.sysno)
-    {
-        i->sysno = key.sysno;
-        i->seqno = 0;
-    }
-    else if (!i->seqno && !key.seqno && i->cmd == *k)
-       return;
-    bp = encode_key_int (key.seqno - i->seqno, bp);
-    i->seqno = key.seqno;
-    i->cmd = *k;
-    if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
+    if (zebra_rec_keys_rewind(reckeys))
     {
-        logf (LOG_FATAL|LOG_ERRNO, "fwrite");
-        exit (1);
+        SortIdx sortIdx = zh->reg->sortIdx;
+       size_t slen;
+       const char *str;
+       struct it_key key_in;
+
+        sortIdx_sysno (sortIdx, sysno);
+
+       while (zebra_rec_keys_read(reckeys, &str, &slen, &key_in))
+        {
+            int ord = CAST_ZINT_TO_INT(key_in.mem[0]);
+            
+            sortIdx_type(sortIdx, ord);
+            if (cmd == 1)
+                sortIdx_add(sortIdx, str, slen);
+            else
+                sortIdx_add(sortIdx, "", 1);
+        }
     }
 }
 
-void encode_key_flush (struct encode_info *i, FILE *outf)
-{ /* dummy routine */
+static void encode_key_init(struct encode_info *i)
+{
+    i->encode_handle = iscz1_start();
+    i->decode_handle = iscz1_start();
 }
 
-#else
-
-/* new encode_key_write
- * The idea is to buffer one more key, and compare them
- * If we are going to delete and insert the same key, 
- * we may as well not bother. Should make a difference in 
- * updates with small modifications (appending to a mbox)
- */
-void encode_key_write (char *k, struct encode_info *i, FILE *outf)
+static void encode_key_write (char *k, struct encode_info *i, FILE *outf)
 {
     struct it_key key;
-    char *bp; 
+    char *bp = i->buf, *bp0;
+    const char *src = (char *) &key;
 
-    if (*k)  /* first time for new key */
-    {
-        bp = i->buf;
-        while ((*bp++ = *k++))
-            ;
-       i->keylen= bp - i->buf -1;    
-       assert(i->keylen+1+sizeof(struct it_key) < ENCODE_BUFLEN);
-    }
-    else
+    /* copy term to output buf */
+    while ((*bp++ = *k++))
+        ;
+    /* and copy & align key so we can mangle */
+    memcpy (&key, k+1, sizeof(struct it_key));  /* *k is insert/delete */
+
+#if 0
+    /* debugging */
+    key_logdump_txt(YLOG_LOG, &key, *k ? "i" : "d");
+#endif
+    assert(key.mem[0] >= 0);
+
+    bp0 = bp++;
+    iscz1_encode(i->encode_handle, &bp, &src);
+
+    *bp0 = (*k * 128) + bp - bp0 - 1; /* length and insert/delete combined */
+    if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
     {
-       bp=i->buf + i->keylen;
-       *bp++=0;
-       k++;
+        yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
+        exit (1);
     }
 
-    memcpy (&key, k+1, sizeof(struct it_key));
-    if (0==i->prevsys) /* no previous filter, fill up */
+#if 0
+    /* debugging */
+    if (1)
     {
-        i->prevsys=key.sysno;
-       i->prevseq=key.seqno;
-       i->prevcmd=*k;
-    }
-    else if ( (i->prevsys==key.sysno) &&
-              (i->prevseq==key.seqno) &&
-             (i->prevcmd!=*k) )
-    { /* same numbers, diff cmd, they cancel out */
-        i->prevsys=0;
-    }
-    else 
-    { /* different stuff, write previous, move buf */
-        bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
-       if (i->sysno != i->prevsys)
-       {
-           i->sysno = i->prevsys;
-           i->seqno = 0;
-        }
-        else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
-       {
-           return; /* ??? Filters some sort of duplicates away */
-                   /* ??? Can this ever happen   -H 15oct02 */
-       }
-        bp = encode_key_int (i->prevseq - i->seqno, bp);
-        i->seqno = i->prevseq;
-        i->cmd = i->prevcmd;
-        if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
-        {
-            logf (LOG_FATAL|LOG_ERRNO, "fwrite");
-            exit (1);
-        }
-        i->keylen=0; /* ok, it's written, forget it */
-       i->prevsys=key.sysno;
-       i->prevseq=key.seqno;
-       i->prevcmd=*k;
+       struct it_key key2;
+       const char *src = bp0+1;
+       char *dst = (char*) &key2;
+       iscz1_decode(i->decode_handle, &dst, &src);
+
+       key_logdump_txt(YLOG_LOG, &key2, *k ? "i" : "d");
+
+       assert(key2.mem[1]);
     }
+#endif
 }
 
-void encode_key_flush (struct encode_info *i, FILE *outf)
-{ /* flush the last key from i */
-    char *bp =i->buf + i->keylen;
-    if (0==i->prevsys)
-    {
-        return; /* nothing to flush */
-    }
-    *bp++=0;
-    bp = encode_key_int ( (i->prevsys - i->sysno) * 2 + i->prevcmd, bp);
-    if (i->sysno != i->prevsys)
-    {
-        i->sysno = i->prevsys;
-        i->seqno = 0;
-    }
-    else if (!i->seqno && !i->prevseq && i->cmd == i->prevcmd)
-    {
-        return; /* ??? Filters some sort of duplicates away */
-                /* ??? Can this ever happen   -H 15oct02 */
-    }
-    bp = encode_key_int (i->prevseq - i->seqno, bp);
-    i->seqno = i->prevseq;
-    i->cmd = i->prevcmd;
-    if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
-    {
-        logf (LOG_FATAL|LOG_ERRNO, "fwrite");
-        exit (1);
-    }
-    i->keylen=0; /* ok, it's written, forget it */
-    i->prevsys=0; /* forget the values too */
-    i->prevseq=0;
+static void encode_key_flush (struct encode_info *i, FILE *outf)
+{ 
+    iscz1_stop(i->encode_handle);
+    iscz1_stop(i->decode_handle);
 }
-#endif
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+