Honor position attribute, i.e. allow first-in-field search. To
[idzebra-moved-to-github.git] / index / extract.c
index 45fde5d..8189504 100644 (file)
@@ -1,5 +1,5 @@
-/* $Id: extract.c,v 1.199 2005-11-10 11:25:47 adam Exp $
-   Copyright (C) 1995-2005
+/* $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.
@@ -15,9 +15,9 @@ 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>
@@ -32,14 +32,40 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #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
 
@@ -73,63 +99,68 @@ static void logRecord (ZebraHandle zh)
     ++zh->records_processed;
     if (!(zh->records_processed % 1000))
     {
-        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);
+        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_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)
+static void extract_init(struct recExtractCtrl *p, RecWord *w)
 {
-    w->zebra_maps = p->zebra_maps;
     w->seqno = 1;
-#if NATTR
-#else
-    w->attrSet = VAL_BIB1;
-    w->attrUse = 1016;
-#endif
-    w->index_name = 0;
+    w->index_name = "any";
     w->index_type = 'w';
     w->extractCtrl = p;
     w->record_id = 0;
     w->section_id = 0;
+    w->segment = 0;
 }
 
 static void searchRecordKey(ZebraHandle zh,
                            zebra_rec_keys_t reckeys,
-                           int attrSetS, int attrUseS,
+                            const char *index_name,
                            const char **ws, int ws_length)
 {
     int i;
-    int ch;
+    int ch = -1;
+    zinfo_index_category_t cat = zinfo_index_category_index;
 
     for (i = 0; i<ws_length; i++)
         ws[i] = NULL;
 
-    ch = zebraExplain_lookup_attr_su_any_index(zh->reg->zei,
-                                              attrSetS, attrUseS);
+    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);
+
     if (ch < 0)
        return ;
 
     if (zebra_rec_keys_rewind(reckeys))
     {
-       int startSeq = -1;
+       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 <= 4 && key.len > 2);
+           assert(key.len <= IT_KEY_LEVEL_MAX && key.len > 2);
 
            seqno = key.mem[key.len-1];
            
            if (key.mem[0] == ch)
            {
-               int woff;
+               zint woff;
                
                if (startSeq == -1)
                    startSeq = seqno;
@@ -141,70 +172,7 @@ static void searchRecordKey(ZebraHandle zh,
     }
 }
 
-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;
-};
-
-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->file_offset = 0;
-    fi->file_more = 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;
-    return lseek (p->fd, offset, SEEK_SET);
-}
-
-static off_t file_tell (void *handle)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
-    return p->file_offset;
-}
-
-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;
-    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_end (void *handle, off_t offset)
-{
-    struct file_read_info *p = (struct file_read_info *) handle;
-
-    if (offset != p->file_moffset)
-    {
-       p->file_moffset = offset;
-       p->file_more = 1;
-    }
-}
+#define FILE_MATCH_BLANK "\t "
 
 static char *fileMatchStr (ZebraHandle zh,
                           zebra_rec_keys_t reckeys,
@@ -216,53 +184,43 @@ static char *fileMatchStr (ZebraHandle zh,
 
     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);
-           }
-            searchRecordKey (zh, reckeys, attSet, attUse, ws, 32);
 
-            if (*s == ')')
-            {
-                for (i = 0; i<32; i++)
-                    matchFlag[i] = 1;
-            }
-            else
+            searchRecordKey (zh, reckeys, attname_str, ws, 32);
+
+            if (*s != ')')
             {
                 yaz_log (YLOG_WARN, "Missing ) in match criteria %s in group %s",
                       spec, zh->m_group ? zh->m_group : "none");
@@ -271,7 +229,7 @@ static char *fileMatchStr (ZebraHandle zh,
             s++;
 
             for (i = 0; i<32; i++)
-                if (matchFlag[i] && ws[i])
+                if (ws[i])
                 {
                     if (first)
                     {
@@ -294,12 +252,12 @@ 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;
@@ -329,7 +287,7 @@ static char *fileMatchStr (ZebraHandle zh,
 
             while (*s && *s != stopMarker)
             {
-                if (i < 63)
+                if (i+1 < sizeof(tmpString))
                     tmpString[i++] = *s++;
             }
             if (*s)
@@ -372,372 +330,42 @@ static void init_extractCtrl(ZebraHandle zh, struct recExtractCtrl *ctrl)
        else
            ctrl->seqno[i] = 0;
     }
-    ctrl->zebra_maps = zh->reg->zebra_maps;
     ctrl->flagShowRecords = !zh->m_flag_rw;
 }
 
-static int file_extract_record(ZebraHandle zh,
-                              SYSNO *sysno, const char *fname,
-                              int deleteFlag,
-                              struct file_read_info *fi,
-                              int force_update,
-                              RecType recType,
-                              void *recTypeClientData)
+static void all_matches_add(struct recExtractCtrl *ctrl)
 {
-    RecordAttr *recordAttr;
-    int r;
-    const char *matchStr = 0;
-    SYSNO sysnotmp;
-    Record rec;
-    off_t recordOffset = 0;
-    struct recExtractCtrl extractCtrl;
-    
-    /* announce database */
-    if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
-    {
-        if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0],
-                                     zh->m_explain_database))
-           return 0;
-    }
-
-    if (fi->fd != -1)
-    {
-        /* we are going to read from a file, so prepare the extraction */
-       zebra_rec_keys_reset(zh->reg->keys);
-
-#if NATTR
-       zebra_rec_keys_reset(zh->reg->sortKeys);
-#else
-       zh->reg->sortKeys.buf_used = 0;
-#endif
-       recordOffset = fi->file_moffset;
-        extractCtrl.handle = zh;
-       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.init = extract_init;
-       extractCtrl.tokenAdd = extract_token_add;
-       extractCtrl.schemaAdd = extract_schema_add;
-       extractCtrl.dh = zh->reg->dh;
-       extractCtrl.match_criteria[0] = '\0';
-       extractCtrl.staticrank = 0;
-       
-       extractCtrl.first_record = fi->file_offset ? 0 : 1;
-
-       extract_set_store_data_prepare(&extractCtrl);
-
-       init_extractCtrl(zh, &extractCtrl);
-
-        if (!zh->m_flag_rw)
-            printf ("File: %s " PRINTF_OFF_T "\n", fname, recordOffset);
-        if (zh->m_flag_rw)
-        {
-            char msg[512];
-            sprintf (msg, "%s:" PRINTF_OFF_T , fname, recordOffset);
-            yaz_log_init_prefix2 (msg);
-        }
-
-        r = (*recType->extract)(recTypeClientData, &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 (zh->m_flag_rw &&
-               zh->records_processed < zh->m_file_verbose_limit)
-            {
-                yaz_log (YLOG_WARN, "fail %s %s " PRINTF_OFF_T, zh->m_record_type,
-                      fname, recordOffset);
-            }
-            return 0;
-        }
-       else if (r == RECCTRL_EXTRACT_ERROR_NO_SUCH_FILTER)
-       {
-            /* error occured during extraction ... */
-            if (zh->m_flag_rw &&
-               zh->records_processed < zh->m_file_verbose_limit)
-            {
-                yaz_log (YLOG_WARN, "no filter for %s %s " 
-                      PRINTF_OFF_T, zh->m_record_type,
-                      fname, recordOffset);
-            }
-            return 0;
-        }
-        if (extractCtrl.match_criteria[0])
-            matchStr = extractCtrl.match_criteria;     
-    }
-
-    /* perform match if sysno not known and if match criteria is specified */
-    if (!sysno) 
-    {
-        sysnotmp = 0;
-        sysno = &sysnotmp;
-
-        if (matchStr == 0 && zh->m_record_id && *zh->m_record_id)
-        {
-            matchStr = fileMatchStr (zh, zh->reg->keys, fname, 
-                                    zh->m_record_id);
-           if (!matchStr)
-           {
-               yaz_log(YLOG_WARN, "Bad match criteria");
-               return 0;
-           }
-       }
-       if (matchStr)
-       {
-            char *rinfo = dict_lookup (zh->reg->matchDict, matchStr);
-           if (rinfo)
-           {
-               assert(*rinfo == sizeof(*sysno));
-               memcpy (sysno, rinfo+1, sizeof(*sysno));
-           }
-       }
-    }
-    if (! *sysno && zebra_rec_keys_empty(zh->reg->keys)        )
-    {
-         /* the extraction process returned no information - the record
-            is probably empty - unless flagShowRecords is in use */
-         if (!zh->m_flag_rw)
-             return 1;
-  
-         if (zh->records_processed < zh->m_file_verbose_limit)
-            yaz_log (YLOG_WARN, "empty %s %s " PRINTF_OFF_T, zh->m_record_type,
-           fname, recordOffset);
-         return 1;
-    }
-
-    if (! *sysno)
-    {
-        /* new record */
-        if (deleteFlag)
-        {
-           yaz_log (YLOG_LOG, "delete %s %s " PRINTF_OFF_T, zh->m_record_type,
-                 fname, recordOffset);
-            yaz_log (YLOG_WARN, "cannot delete record above (seems new)");
-            return 1;
-        }
-        if (zh->records_processed < zh->m_file_verbose_limit)
-            yaz_log (YLOG_LOG, "add %s %s " PRINTF_OFF_T, zh->m_record_type,
-                  fname, recordOffset);
-        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);
-        }
-#if NATTR
-       extract_flushSortKeys (zh, *sysno, 1, zh->reg->sortKeys);
-#else
-       extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-#endif
-        extract_flushRecordKeys (zh, *sysno, 1, zh->reg->keys,
-                                recordAttr->staticrank);
-        zh->records_inserted++;
-    }
-    else
-    {
-        /* record already exists */
-       zebra_rec_keys_t delkeys = zebra_rec_keys_open();
-
-#if NATTR
-       zebra_rec_keys_t sortKeys = zebra_rec_keys_open();
-#else
-        struct sortKeys sortKeys;
-#endif
-
-        rec = rec_get (zh->reg->records, *sysno);
-        assert (rec);
-       
-       recordAttr = rec_init_attr (zh->reg->zei, rec);
-
-       zebra_rec_keys_set_buf(delkeys,
-                              rec->info[recInfo_delKeys],
-                              rec->size[recInfo_delKeys],
-                              0);
-
-#if NATTR
-       zebra_rec_keys_set_buf(sortKeys,
-                              rec->info[recInfo_sortKeys],
-                              rec->size[recInfo_sortKeys],
-                              0);
-       extract_flushSortKeys (zh, *sysno, 0, sortKeys);
-#else
-        sortKeys.buf_used = rec->size[recInfo_sortKeys];
-        sortKeys.buf = rec->info[recInfo_sortKeys];
-       extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
-#endif
-
-        extract_flushRecordKeys (zh, *sysno, 0, delkeys,
-                                recordAttr->staticrank); /* old values */  
-        if (deleteFlag)
-        {
-            /* record going to be deleted */
-            if (zebra_rec_keys_empty(delkeys))
-            {
-                yaz_log (YLOG_LOG, "delete %s %s " PRINTF_OFF_T,
-                        zh->m_record_type, fname, recordOffset);
-                yaz_log (YLOG_WARN, "cannot delete file above, storeKeys false (1)");
-            }
-            else
-            {
-                if (zh->records_processed < zh->m_file_verbose_limit)
-                    yaz_log (YLOG_LOG, "delete %s %s " PRINTF_OFF_T,
-                            zh->m_record_type, 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
-        {
-           /* flush new keys for sort&search etc */
-            if (zh->records_processed < zh->m_file_verbose_limit)
-                yaz_log (YLOG_LOG, "update %s %s " PRINTF_OFF_T,
-                      zh->m_record_type, fname, recordOffset);
-           recordAttr->staticrank = extractCtrl.staticrank;
-#if NATTR
-            extract_flushSortKeys (zh, *sysno, 1, zh->reg->sortKeys);
-#else
-            extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-#endif
-            extract_flushRecordKeys (zh, *sysno, 1, zh->reg->keys,
-                                        recordAttr->staticrank);
-            zh->records_updated++;
-        }
-       zebra_rec_keys_close(delkeys);
-#if NATTR
-       zebra_rec_keys_close(sortKeys);
-#endif
-    }
-    /* update file type */
-    xfree (rec->info[recInfo_fileType]);
-    rec->info[recInfo_fileType] =
-        rec_strdup (zh->m_record_type, &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 (!zebra_rec_keys_empty(zh->reg->keys) && zh->m_store_keys == 1)
-    {
-       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]);
-
-#if NATTR
-    zebra_rec_keys_get_buf(zh->reg->sortKeys,
-                          &rec->info[recInfo_sortKeys],
-                          &rec->size[recInfo_sortKeys]);
-#else
-    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;
-#endif
-
-    /* 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 (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)
-    {
-        rec->size[recInfo_storeData] = recordAttr->recordSize;
-        rec->info[recInfo_storeData] = (char *)
-           xmalloc (recordAttr->recordSize);
-        if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
-        {
-            yaz_log (YLOG_ERRNO|YLOG_FATAL, "seek to " PRINTF_OFF_T " in %s",
-                  recordOffset, fname);
-            exit (1);
-        }
-        if (read (fi->fd, rec->info[recInfo_storeData], recordAttr->recordSize)
-           < recordAttr->recordSize)
-        {
-            yaz_log (YLOG_ERRNO|YLOG_FATAL, "read %d bytes of %s",
-                  recordAttr->recordSize, fname);
-            exit (1);
-        }
-    }
-    else
-    {
-        rec->info[recInfo_storeData] = NULL;
-        rec->size[recInfo_storeData] = 0;
-    }
-    /* update database name */
-    xfree (rec->info[recInfo_databaseName]);
-    rec->info[recInfo_databaseName] =
-        rec_strdup (zh->basenames[0], &rec->size[recInfo_databaseName]); 
-
-    /* update offset */
-    recordAttr->recordOffset = recordOffset;
-    
-    /* commit this record */
-    rec_put (zh->reg->records, &rec);
-    logRecord (zh);
-    return 1;
+    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, 
-                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];
-    struct file_read_info *fi;
+    struct file_read_info *fi = 0;
     const char *original_record_type = 0;
     RecType recType;
     void *recTypeClientData;
+    struct ZebraRecStream stream, *streamp;
+
+    zebra_init_log_level();
 
     if (!zh->m_group || !*zh->m_group)
         *gprefix = '\0';
     else
         sprintf (gprefix, "%s.", zh->m_group);
     
-    yaz_log (YLOG_DEBUG, "fileExtract %s", fname);
+    yaz_log(log_level, "zebra_extract_file %s", fname);
 
     /* determine file extension */
     *ext = '\0';
@@ -774,7 +402,7 @@ int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
                          &recTypeClientData)))
     {
         yaz_log(YLOG_WARN, "No such record type: %s", zh->m_record_type);
-        return 0;
+        return ZEBRA_FAIL;
     }
 
     switch(recType->version)
@@ -785,7 +413,10 @@ int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
        yaz_log(YLOG_WARN, "Bad filter version: %s", zh->m_record_type);
     }
     if (sysno && deleteFlag)
-        fd = -1;
+    {
+        streamp = 0;
+        fi = 0;
+    }
     else
     {
         char full_rep[1024];
@@ -799,31 +430,38 @@ int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
         else
             strcpy (full_rep, fname);
         
-
         if ((fd = open (full_rep, O_BINARY|O_RDONLY)) == -1)
         {
             yaz_log (YLOG_WARN|YLOG_ERRNO, "open %s", full_rep);
            zh->m_record_type = original_record_type;
-            return 0;
+            return ZEBRA_FAIL;
         }
-    }
-    fi = file_read_start (fd);
-    do
-    {
-       fi->file_moffset = fi->file_offset;
-       fi->file_more = 0;  /* file_end not called (yet) */
-        r = file_extract_record (zh, sysno, fname, deleteFlag, fi, 1,
-                                recType, recTypeClientData);
-       if (fi->file_more)
-       {   /* file_end has been called so reset offset .. */
-           fi->file_offset = fi->file_moffset;
-           lseek(fi->fd, fi->file_moffset, SEEK_SET);
+        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;
        }
     }
-    while (r && !sysno);
-    file_read_stop (fi);
-    if (fd != -1)
-        close (fd);
+    if (streamp)
+        stream.destroy(streamp);
     zh->m_record_type = original_record_type;
     return r;
 }
@@ -834,64 +472,26 @@ int fileExtract (ZebraHandle zh, SYSNO *sysno, const char *fname,
   If not, and a record is provided, then sysno is got from there
   
  */
-ZEBRA_RES 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)
+
+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 r;
-    const char *matchStr = 0;
-    RecType recType = NULL;
+    struct ZebraRecStream stream;
+    ZEBRA_RES res;
     void *clientData;
-    Record rec;
-    long recordOffset = 0;
-    struct zebra_fetch_control fc;
-    const char *pr_fname = fname;  /* filename to print .. */
-    int show_progress = zh->records_processed < zh->m_file_verbose_limit ? 1:0;
-
-    if (!pr_fname)
-       pr_fname = "<no file>";  /* make it printable if file is omitted */
-
-    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.first_record = 1;
-    extractCtrl.fh = &fc;
-
-    zebra_rec_keys_reset(zh->reg->keys);
+    RecType recType = 0;
 
-#if NATTR
-    zebra_rec_keys_reset(zh->reg->sortKeys);
-#else
-    zh->reg->sortKeys.buf_used = 0;
-#endif
-    if (zebraExplain_curDatabase (zh->reg->zei, zh->basenames[0]))
-    {
-        if (zebraExplain_newDatabase (zh->reg->zei, zh->basenames[0], 
-                                     zh->m_explain_database))
-            return ZEBRA_FAIL;
-    }
-    
     if (recordType && *recordType)
     {
-        yaz_log (YLOG_DEBUG, "Record type explicitly specified: %s", recordType);
+        yaz_log(log_level, "Record type explicitly specified: %s", recordType);
         recType = recType_byName (zh->reg->recTypes, zh->res, recordType,
                                   &clientData);
     } 
@@ -902,7 +502,8 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
             yaz_log (YLOG_WARN, "No such record type defined");
             return ZEBRA_FAIL;
         }
-        yaz_log (YLOG_DEBUG, "Get record type from rgroup: %s",zh->m_record_type);
+        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;
@@ -910,46 +511,118 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
     
     if (!recType)
     {
-        yaz_log (YLOG_WARN, "No such record type: %s", zh->m_record_type);
+        yaz_log (YLOG_WARN, "No such record type: %s", recordType);
         return ZEBRA_FAIL;
     }
-    
-    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)(clientData, &extractCtrl);
 
-    if (r == RECCTRL_EXTRACT_EOF)
-       return ZEBRA_FAIL;
-    else if (r == RECCTRL_EXTRACT_ERROR_GENERIC)
+    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;
+}
+
+
+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 (YLOG_WARN, "extract error: generic");
-       return ZEBRA_FAIL;
+        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 (YLOG_WARN, "extract error: no such filter");
-       return ZEBRA_FAIL;
+        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;
     }
-    /* match criteria */
-    matchStr = NULL;
+    if (!sysno) {
 
-    if (extractCtrl.match_criteria[0])
-       match_criteria = extractCtrl.match_criteria;
+       sysno = &sysno0;
 
-    if (! *sysno) {
-        char *rinfo;
         if (match_criteria && *match_criteria) {
             matchStr = match_criteria;
         } else {
@@ -963,8 +636,11 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
                 }
             }
         }
-        if (matchStr) {
-            rinfo = dict_lookup (zh->reg->matchDict, matchStr);
+        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));
@@ -985,14 +661,14 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
         /* new record */
         if (delete_flag)
         {
-           yaz_log (YLOG_LOG, "delete %s %s %ld", recordType,
-                        pr_fname, (long) recordOffset);
+           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;
         }
        if (show_progress)
-           yaz_log (YLOG_LOG, "add %s %s %ld", recordType, pr_fname,
-                    (long) recordOffset);
+           yaz_log (YLOG_LOG, "add %s %s " ZINT_FORMAT, recordType, pr_fname,
+                    (zint) start_offset);
         rec = rec_new (zh->reg->records);
 
         *sysno = rec->sysno;
@@ -1002,18 +678,13 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
 
         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);
         }
-#if NATTR
+
+
        extract_flushSortKeys (zh, *sysno, 1, zh->reg->sortKeys);
-#else
-       extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-#endif
-       
-#if 0
-       print_rec_keys(zh, zh->reg->keys);
-#endif
         extract_flushRecordKeys (zh, *sysno, 1, zh->reg->keys,
                         recordAttr->staticrank);
         zh->records_inserted++;
@@ -1022,16 +693,11 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
     {
         /* record already exists */
        zebra_rec_keys_t delkeys = zebra_rec_keys_open();
-#if NATTR
        zebra_rec_keys_t sortKeys = zebra_rec_keys_open();
-#else
-        struct sortKeys sortKeys;
-#endif
-
        if (!allow_update)
        {
-           yaz_log (YLOG_LOG, "skipped %s %s %ld", 
-                        recordType, pr_fname, (long) recordOffset);
+           yaz_log (YLOG_LOG, "skipped %s %s " ZINT_FORMAT, 
+                        recordType, pr_fname, (zint) start_offset);
            logRecord(zh);
            return ZEBRA_FAIL;
        }
@@ -1045,21 +711,12 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
                               rec->info[recInfo_delKeys],
                               rec->size[recInfo_delKeys],
                               0);
-#if NATTR
        zebra_rec_keys_set_buf(sortKeys,
                               rec->info[recInfo_sortKeys],
                               rec->size[recInfo_sortKeys],
                               0);
-#else
-        sortKeys.buf_used = rec->size[recInfo_sortKeys];
-        sortKeys.buf = rec->info[recInfo_sortKeys];
-#endif
 
-#if NATTR
        extract_flushSortKeys (zh, *sysno, 0, sortKeys);
-#else
-       extract_flushSortKeys (zh, *sysno, 0, &sortKeys);
-#endif
         extract_flushRecordKeys (zh, *sysno, 0, delkeys,
                                 recordAttr->staticrank);
         if (delete_flag)
@@ -1067,19 +724,22 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
             /* record going to be deleted */
             if (zebra_rec_keys_empty(delkeys))
             {
-               yaz_log (YLOG_LOG, "delete %s %s %ld", recordType,
-                    pr_fname, (long) recordOffset);
-               yaz_log (YLOG_WARN, "cannot delete file above, "
-                            "storeKeys false (3)");
+               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
             {
                if (show_progress)
-                   yaz_log (YLOG_LOG, "delete %s %s %ld", recordType,
-                            pr_fname, (long) recordOffset);
+                   yaz_log(YLOG_LOG, "delete %s %s " ZINT_FORMAT, recordType,
+                            pr_fname, (zint) start_offset);
                 zh->records_deleted++;
                 if (matchStr)
-                    dict_delete (zh->reg->matchDict, matchStr);
+               {
+                   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);
@@ -1089,22 +749,16 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
         else
         {
            if (show_progress)
-                   yaz_log (YLOG_LOG, "update %s %s %ld", recordType,
-                            pr_fname, (long) recordOffset);
+                   yaz_log(YLOG_LOG, "update %s %s " ZINT_FORMAT, recordType,
+                            pr_fname, (zint) ZINT_FORMAT);
            recordAttr->staticrank = extractCtrl.staticrank;
-#if NATTR
             extract_flushSortKeys (zh, *sysno, 1, zh->reg->sortKeys);
-#else
-            extract_flushSortKeys (zh, *sysno, 1, &zh->reg->sortKeys);
-#endif
             extract_flushRecordKeys (zh, *sysno, 1, zh->reg->keys, 
                                         recordAttr->staticrank);
             zh->records_updated++;
         }
        zebra_rec_keys_close(delkeys);
-#if NATTR
        zebra_rec_keys_close(sortKeys);
-#endif
     }
     /* update file type */
     xfree (rec->info[recInfo_fileType]);
@@ -1132,29 +786,26 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
     /* update sort keys */
     xfree (rec->info[recInfo_sortKeys]);
 
-#if NATTR
     zebra_rec_keys_get_buf(zh->reg->sortKeys,
                           &rec->info[recInfo_sortKeys],
                           &rec->size[recInfo_sortKeys]);
-#else
-    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;
-#endif
 
     /* 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 =
@@ -1172,10 +823,15 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
     }
     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);
-        memcpy (rec->info[recInfo_storeData], buf, recordAttr->recordSize);
+        stream->seekf(stream, start_offset);
+        stream->readf(stream, rec->info[recInfo_storeData],
+                      recordAttr->recordSize);
+        stream->seekf(stream, cur_offset);
     }
     else
     {
@@ -1188,7 +844,7 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
         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);
@@ -1196,7 +852,7 @@ ZEBRA_RES buffer_extract_record(ZebraHandle zh,
     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;
@@ -1211,12 +867,8 @@ int explain_extract (void *handle, Record rec, data1_node *n)
     }
 
     zebra_rec_keys_reset(zh->reg->keys);
-    
-#if NATTR
     zebra_rec_keys_reset(zh->reg->sortKeys);
-#else
-    zh->reg->sortKeys.buf_used = 0;
-#endif
+
     extractCtrl.init = extract_init;
     extractCtrl.tokenAdd = extract_token_add;
     extractCtrl.schemaAdd = extract_schema_add;
@@ -1239,36 +891,23 @@ int explain_extract (void *handle, Record rec, data1_node *n)
     {
        zebra_rec_keys_t delkeys = zebra_rec_keys_open();
        
-#if NATTR
        zebra_rec_keys_t sortkeys = zebra_rec_keys_open();
-#else
-       struct sortKeys sortkeys;
-#endif
 
        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);
-#if NATTR
+
        zebra_rec_keys_set_buf(sortkeys, rec->info[recInfo_sortKeys],
                               rec->size[recInfo_sortKeys],
                               0);
 
        extract_flushSortKeys (zh, rec->sysno, 0, sortkeys);
        zebra_rec_keys_close(sortkeys);
-#else
-       sortkeys.buf_used = rec->size[recInfo_sortKeys];
-       sortkeys.buf = rec->info[recInfo_sortKeys];
-       extract_flushSortKeys (zh, rec->sysno, 0, &sortkeys);
-#endif
     }
     extract_flushRecordKeys (zh, rec->sysno, 1, zh->reg->keys, 0);
-#if NATTR
     extract_flushSortKeys (zh, rec->sysno, 1, zh->reg->sortKeys);
-#else
-    extract_flushSortKeys (zh, rec->sysno, 1, &zh->reg->sortKeys);
-#endif
 
     xfree (rec->info[recInfo_delKeys]);
     zebra_rec_keys_get_buf(zh->reg->keys,
@@ -1276,18 +915,62 @@ int explain_extract (void *handle, Record rec, data1_node *n)
                           &rec->size[recInfo_delKeys]);
 
     xfree (rec->info[recInfo_sortKeys]);
-#if NATTR
     zebra_rec_keys_get_buf(zh->reg->sortKeys,
                           &rec->info[recInfo_sortKeys],
                           &rec->size[recInfo_sortKeys]);
-#else
-    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;
-#endif
+    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;
+            }
+        }
 
-    return 0;
+        p = ord_list;
+        while (p)
+        {
+            struct ord_stat *p1 = p;
+
+            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,
@@ -1297,6 +980,8 @@ void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
 {
     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"));
@@ -1323,10 +1008,11 @@ void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
        while(zebra_rec_keys_read(reckeys, &str, &slen, &key_in))
        {
            int ch = 0;
+            int i, j = 0;
            struct it_key key_out;
-           zint *keyp = key_out.mem;
 
-           assert(key_in.len == 4);
+           assert(key_in.len >= 2);
+            assert(key_in.len <= IT_KEY_LEVEL_MAX);
            
            /* check for buffer overflow */
            if (zh->reg->key_buf_used + 1024 > 
@@ -1338,12 +1024,15 @@ void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
            (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 = (int) key_in.mem[0];
+           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;
@@ -1354,19 +1043,23 @@ void extract_flushRecordKeys (ZebraHandle zh, SYSNO sysno,
 
            if (zh->m_staticrank) /* rank config enabled ? */
            {
-               *keyp++ = staticrank;
-               key_out.len = 4;
+               if (staticrank < 0)
+               {
+                   yaz_log(YLOG_WARN, "staticrank = %ld. Setting to 0",
+                           (long) staticrank);
+                   staticrank = 0;
+               }
+                key_out.mem[j++] = staticrank;
            }
-           else
-               key_out.len = 3;
            
            if (key_in.mem[1]) /* filter specified record ID */
-               *keyp++ = key_in.mem[1];
+               key_out.mem[j++] = key_in.mem[1];
            else
-               *keyp++ = sysno;
-           *keyp++ = key_in.mem[2];  /* section_id */
-           *keyp++ = key_in.mem[3];  /* sequence .. */
-           
+               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);
@@ -1390,19 +1083,14 @@ void extract_flushWriteKeys (ZebraHandle zh, int final)
 #endif
     if (!zh->reg->key_buf || ptr_i <= 0)
     {
-        yaz_log (YLOG_DEBUG, "  nothing to flush section=%d buf=%p i=%d",
+        yaz_log(log_level, "  nothing to flush section=%d buf=%p i=%d",
                zh->reg->key_file_no, zh->reg->key_buf, ptr_i);
-        yaz_log (YLOG_DEBUG, "  buf=%p ",
-               zh->reg->key_buf);
-        yaz_log (YLOG_DEBUG, "  ptr=%d ",zh->reg->ptr_i);
-        yaz_log (YLOG_DEBUG, "  reg=%p ",zh->reg);
-               
         return;
     }
 
     (zh->reg->key_file_no)++;
     yaz_log (YLOG_LOG, "sorting section %d", (zh->reg->key_file_no));
-    yaz_log (YLOG_DEBUG, "  sort_buff at %p n=%d",
+    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,
@@ -1522,14 +1210,16 @@ ZEBRA_RES zebra_snippets_rec_keys(ZebraHandle zh,
        {
            char dst_buf[IT_MAX_WORD];
            char *dst_term = dst_buf;
-           int ord, seqno;
+           int ord;
+            zint seqno;
            int index_type;
-           assert(key.len <= 4 && key.len > 2);
-           seqno = (int) key.mem[key.len-1];
-           ord = key.mem[0];
+
+           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/* set */, 0/* use */);
+                                   0/* db */, 0 /* string_index */);
            assert(index_type);
            zebra_term_untrans_iconv(zh, nmem, index_type,
                                     &dst_term, str);
@@ -1552,161 +1242,112 @@ void print_rec_keys(ZebraHandle zh, zebra_rec_keys_t reckeys)
        while (zebra_rec_keys_read(reckeys, &str, &slen, &key))
        {
            char dst_buf[IT_MAX_WORD];
-           int seqno;
+           zint seqno;
            int index_type;
+            int ord = CAST_ZINT_TO_INT(key.mem[0]);
            const char *db = 0;
-           assert(key.len <= 4 && key.len > 2);
+           assert(key.len <= IT_KEY_LEVEL_MAX && key.len > 2);
 
-           zebraExplain_lookup_ord(zh->reg->zei,
-                                   key.mem[0], &index_type, &db, 0, 0);
+           zebraExplain_lookup_ord(zh->reg->zei, ord, &index_type, &db, 0);
            
-           seqno = (int) key.mem[key.len-1];
+           seqno = key.mem[key.len-1];
            
            zebra_term_untrans(zh, index_type, dst_buf, str);
            
-           yaz_log(YLOG_LOG, "ord=" ZINT_FORMAT " seqno=%d term=%s",
-                   key.mem[0], seqno, dst_buf); 
+           yaz_log(YLOG_LOG, "ord=%d seqno=" ZINT_FORMAT 
+                    " term=%s", ord, seqno, dst_buf); 
        }
     }
 }
 
-void extract_add_index_string (RecWord *p, const char *str, int length)
+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;
+    int ch, i;
 
-    if (p->index_name)
-    {
-       ch = zebraExplain_lookup_attr_str(zei, p->index_type, p->index_name);
-       if (ch < 0)
-           ch = zebraExplain_add_attr_str(zei, p->index_type, p->index_name);
-    }
-    else
-    {
-#if NATTR
-       return;
-#else
-       ch = zebraExplain_lookup_attr_su(zei, p->index_type, 
-                                        p->attrSet, p->attrUse);
-       if (ch < 0)
-           ch = zebraExplain_add_attr_su(zei, p->index_type,
-                                         p->attrSet, p->attrUse);
-#endif
-    }
-    key.len = 4;
-    key.mem[0] = ch;
-    key.mem[1] = p->record_id;
-    key.mem[2] = p->section_id;
-    key.mem[3] = p->seqno;
+    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);
 
-#if 0
-    if (1)
-    {
-       char strz[80];
-       int i;
-
-       strz[0] = 0;
-       for (i = 0; i<length && i < 20; i++)
-           sprintf(strz+strlen(strz), "%02X", str[i] & 0xff);
-       /* just for debugging .. */
-       yaz_log(YLOG_LOG, "add: set=%d use=%d "
-               "record_id=%lld section_id=%lld seqno=%lld %s",
-               p->attrSet, p->attrUse, p->record_id, p->section_id, p->seqno,
-               strz);
-    }
-#endif
+    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);
 }
 
-#if NATTR
-static void extract_add_sort_string (RecWord *p, const char *str, int length)
+static void extract_add_sort_string(RecWord *p, const char *str, int length)
 {
     struct it_key key;
-
     ZebraHandle zh = p->extractCtrl->handle;
     ZebraExplainInfo zei = zh->reg->zei;
     int ch;
+    zinfo_index_category_t cat = zinfo_index_category_sort;
 
-    if (p->index_name)
-    {
-       ch = zebraExplain_lookup_attr_str(zei, p->index_type, p->index_name);
-       if (ch < 0)
-           ch = zebraExplain_add_attr_str(zei, p->index_type, p->index_name);
-    }
-    else
-    {
-       return;
-    }
-    key.len = 4;
+    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;
-    key.mem[2] = p->section_id;
-    key.mem[3] = p->seqno;
 
     zebra_rec_keys_write(zh->reg->sortKeys, str, length, &key);
 }
-#else
-static void extract_add_sort_string (RecWord *p, const char *str, int length)
+
+static void extract_add_string(RecWord *p, const char *string, int length)
 {
     ZebraHandle zh = p->extractCtrl->handle;
-    struct sortKeys *sk = &zh->reg->sortKeys;
-    int off = 0;
+    assert (length > 0);
 
-    while (off < sk->buf_used)
-    {
-        int set, use, slen;
-
-        off += key_SU_decode(&set, (unsigned char *) sk->buf + off);
-        off += key_SU_decode(&use, (unsigned char *) sk->buf + off);
-        off += key_SU_decode(&slen, (unsigned char *) 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, str, length);
-    sk->buf_used = off + length;
-}
-#endif
+    if (!p->index_name)
+        return;
 
-void extract_add_string (RecWord *p, const char *string, int length)
-{
-    assert (length > 0);
-    if (zebra_maps_is_sort (p->zebra_maps, p->index_type))
-       extract_add_sort_string (p, string, length);
+    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)
 {
+    ZebraHandle zh = p->extractCtrl->handle;
     const char *b = p->term_buf;
     int remain = p->term_len;
     const char **map = 0;
     
-    yaz_log(YLOG_DEBUG, "Incomplete field, w='%.*s'", p->term_len, p->term_buf);
-
     if (remain > 0)
-       map = zebra_maps_input(p->zebra_maps, p->index_type, &b, remain, 0);
+       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];
@@ -1717,7 +1358,7 @@ static void extract_add_incomplete_field (RecWord *p)
        {
            remain = p->term_len - (b - p->term_buf);
            if (remain > 0)
-               map = zebra_maps_input(p->zebra_maps, p->index_type, &b,
+               map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b,
                                       remain, 0);
            else
                map = 0;
@@ -1733,7 +1374,7 @@ static void extract_add_incomplete_field (RecWord *p)
                buf[i++] = *(cp++);
            remain = p->term_len - (b - p->term_buf);
            if (remain > 0)
-               map = zebra_maps_input(p->zebra_maps, p->index_type, &b, remain, 0);
+               map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b, remain, 0);
            else
                map = 0;
        }
@@ -1746,16 +1387,14 @@ static void extract_add_incomplete_field (RecWord *p)
 
 static void extract_add_complete_field (RecWord *p)
 {
+    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->term_len;
 
-    yaz_log(YLOG_DEBUG, "Complete field, w='%.*s'",
-           p->term_len, p->term_buf);
-
     if (remain > 0)
-       map = zebra_maps_input (p->zebra_maps, p->index_type, &b, remain, 1);
+       map = zebra_maps_input (zh->reg->zebra_maps, p->index_type, &b, remain, 1);
 
     while (remain > 0 && i < IT_MAX_WORD)
     {
@@ -1766,7 +1405,7 @@ static void extract_add_complete_field (RecWord *p)
            if (remain > 0)
            {
                int first = i ? 0 : 1;  /* first position */
-               map = zebra_maps_input(p->zebra_maps, p->index_type, &b, remain, first);
+               map = zebra_maps_input(zh->reg->zebra_maps, p->index_type, &b, remain, first);
            }
            else
                map = 0;
@@ -1788,14 +1427,13 @@ static void extract_add_complete_field (RecWord *p)
            {
                if (i >= IT_MAX_WORD)
                    break;
-               yaz_log(YLOG_DEBUG, "Adding string to index '%d'", **map);
                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->index_type, &b,
+               map = zebra_maps_input (zh->reg->zebra_maps, p->index_type, &b,
                                        remain, 0);
            }
            else
@@ -1807,22 +1445,25 @@ 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 0
-    yaz_log (YLOG_LOG, "token_add "
-            "reg_type=%c attrSet=%d attrUse=%d seqno=%d s=%.*s",
-             p->reg_type, p->attrSet, p->attrUse, p->seqno, p->length,
-             p->string);
-#endif
-    if ((wrbuf = zebra_replace(p->zebra_maps, p->index_type, 0,
+
+    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->term_buf = wrbuf_buf(wrbuf);
        p->term_len = wrbuf_len(wrbuf);
     }
-    if (zebra_maps_is_complete (p->zebra_maps, p->index_type))
+    if (zebra_maps_is_complete (zh->reg->zebra_maps, p->index_type))
        extract_add_complete_field (p);
     else
        extract_add_incomplete_field(p);
@@ -1853,94 +1494,44 @@ static void extract_set_store_data_prepare(struct recExtractCtrl *p)
     p->setStoreData = extract_set_store_data_cb;
 }
 
-void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
+static void extract_schema_add (struct recExtractCtrl *p, Odr_oid *oid)
 {
     ZebraHandle zh = (ZebraHandle) p->handle;
     zebraExplain_addSchema (zh->reg->zei, oid);
 }
 
-#if NATTR
-#error not done yet with zebra_rec_keys_t
 void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
-                            int cmd, struct recKeys *reckeys)
+                            int cmd, zebra_rec_keys_t reckeys)
 {
-    SortIdx sortIdx = zh->reg->sortIdx;
-    void *decode_handle = iscz1_start();
-    int off = 0;
-    int ch = 0;
-
-    while (off < reckeys->buf_used)
+    if (zebra_rec_keys_rewind(reckeys))
     {
-        const char *src = reckeys->buf + off;
-        struct it_key key;
-       char *dst = (char*) &key;
-
-       iscz1_decode(decode_handle, &dst, &src);
-       assert(key.len == 4);
-
-       ch = (int) key.mem[0];  /* ordinal for field/use/attribute */
-
-        sortIdx_type(sortIdx, ch);
-        if (cmd == 1)
-            sortIdx_add(sortIdx, src, strlen(src));
-        else
-            sortIdx_add(sortIdx, "", 1);
-       
-       src += strlen(src);
-        src++;
-
-        off = src - reckeys->buf;
-    }
-    assert (off == reckeys->buf_used);
-    iscz1_stop(decode_handle);
-}
-#else
-void extract_flushSortKeys (ZebraHandle zh, SYSNO sysno,
-                            int cmd, struct sortKeys *sk)
-{
-    SortIdx sortIdx = zh->reg->sortIdx;
-    int off = 0;
+        SortIdx sortIdx = zh->reg->sortIdx;
+       size_t slen;
+       const char *str;
+       struct it_key key_in;
 
-    sortIdx_sysno (sortIdx, sysno);
+        sortIdx_sysno (sortIdx, sysno);
 
-    while (off < sk->buf_used)
-    {
-        int set, use, slen;
-        
-        off += key_SU_decode(&set, (unsigned char *) sk->buf + off);
-        off += key_SU_decode(&use, (unsigned char *) sk->buf + off);
-        off += key_SU_decode(&slen, (unsigned char *) sk->buf + off);
-        
-        sortIdx_type(sortIdx, use);
-        if (cmd == 1)
-            sortIdx_add(sortIdx, sk->buf + off, slen);
-        else
-            sortIdx_add(sortIdx, "", 1);
-        off += slen;
+       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);
+        }
     }
 }
-#endif
 
-void encode_key_init (struct encode_info *i)
+static void encode_key_init(struct encode_info *i)
 {
-    i->sysno = 0;
-    i->seqno = 0;
-    i->cmd = -1;
-    i->prevsys=0;
-    i->prevseq=0;
-    i->prevcmd=-1;
-    i->keylen=0;
     i->encode_handle = iscz1_start();
+    i->decode_handle = iscz1_start();
 }
 
-#define OLDENCODE 1
-
-#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)
+static void encode_key_write (char *k, struct encode_info *i, FILE *outf)
 {
     struct it_key key;
     char *bp = i->buf, *bp0;
@@ -1952,119 +1543,49 @@ void encode_key_write (char *k, struct encode_info *i, FILE *outf)
     /* 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)
     {
         yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
         exit (1);
     }
-}
-
-void encode_key_flush (struct encode_info *i, FILE *outf)
-{ /* dummy routine */
-    iscz1_stop(i->encode_handle);
-}
 
-#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)
-{
-    struct it_key key;
-    char *bp; 
-
-    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
+#if 0
+    /* debugging */
+    if (1)
     {
-       bp=i->buf + i->keylen;
-       *bp++=0;
-       k++;
-    }
+       struct it_key key2;
+       const char *src = bp0+1;
+       char *dst = (char*) &key2;
+       iscz1_decode(i->decode_handle, &dst, &src);
 
-    memcpy (&key, k+1, sizeof(struct it_key));
-    if (0==i->prevsys) /* no previous filter, fill up */
-    {
-        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)
-        {
-            yaz_log (YLOG_FATAL|YLOG_ERRNO, "fwrite");
-            exit (1);
-        }
-        i->keylen=0; /* ok, it's written, forget it */
-       i->prevsys=key.sysno;
-       i->prevseq=key.seqno;
-       i->prevcmd=*k;
+       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)
-    {
-        yaz_log (YLOG_FATAL|YLOG_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
+ */
+