Happy new year
[pazpar2-moved-to-github.git] / src / session.c
index 65caa7c..f597d7c 100644 (file)
@@ -1,5 +1,5 @@
 /* This file is part of Pazpar2.
-   Copyright (C) 2006-2013 Index Data
+   Copyright (C) Index Data
 
 Pazpar2 is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
@@ -56,8 +56,9 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include <yaz/querytowrbuf.h>
 #include <yaz/oid_db.h>
 #include <yaz/snprintf.h>
+#include <yaz/xml_get.h>
 
-#define USE_TIMING 1
+#define USE_TIMING 0
 #if USE_TIMING
 #include <yaz/timing.h>
 #endif
@@ -97,7 +98,6 @@ struct client_list {
 /* session counting (1) , disable client counting (0) */
 static YAZ_MUTEX g_session_mutex = 0;
 static int no_sessions = 0;
-static int no_session_total = 0;
 
 static int session_use(int delta)
 {
@@ -106,30 +106,18 @@ static int session_use(int delta)
         yaz_mutex_create(&g_session_mutex);
     yaz_mutex_enter(g_session_mutex);
     no_sessions += delta;
-    if (delta > 0)
-        no_session_total += delta;
     sessions = no_sessions;
     yaz_mutex_leave(g_session_mutex);
-    yaz_log(YLOG_DEBUG, "%s sessions=%d", delta == 0 ? "" : (delta > 0 ? "INC" : "DEC"), no_sessions);
+    yaz_log(YLOG_DEBUG, "%s sessions=%d", delta == 0 ? "" :
+            (delta > 0 ? "INC" : "DEC"), no_sessions);
     return sessions;
 }
 
-int sessions_count(void)
+int sessions_get_count(void)
 {
     return session_use(0);
 }
 
-int session_count_total(void)
-{
-    int total = 0;
-    if (!g_session_mutex)
-        return 0;
-    yaz_mutex_enter(g_session_mutex);
-    total = no_session_total;
-    yaz_mutex_leave(g_session_mutex);
-    return total;
-}
-
 static void log_xml_doc(xmlDoc *doc)
 {
     FILE *lf = yaz_log_file();
@@ -162,31 +150,19 @@ static void session_leave(struct session *s, const char *caller)
         session_log(s, YLOG_DEBUG, "Session unlock by %s", caller);
 }
 
-static void session_normalize_facet(struct session *s, const char *type,
-                                    const char *value,
-                                    WRBUF display_wrbuf,
-                                    WRBUF facet_wrbuf)
+static int run_icu(struct session *s, const char *icu_chain_id,
+                   const char *value,
+                   WRBUF norm_wr, WRBUF disp_wr)
 {
-    struct conf_service *service = s->service;
-    pp2_charset_token_t prt;
     const char *facet_component;
-    int i;
-    const char *icu_chain_id = 0;
-
-    for (i = 0; i < service->num_metadata; i++)
-        if (!strcmp((service->metadata + i)->name, type))
-            icu_chain_id = (service->metadata + i)->facetrule;
-    if (!icu_chain_id)
-        icu_chain_id = "facet";
-    prt = pp2_charset_token_create(service->charsets, icu_chain_id);
+    struct conf_service *service = s->service;
+    pp2_charset_token_t prt =
+        pp2_charset_token_create(service->charsets, icu_chain_id);
     if (!prt)
     {
         session_log(s, YLOG_FATAL,
-                    "Unknown ICU chain '%s' for facet of type '%s'",
-                icu_chain_id, type);
-        wrbuf_destroy(facet_wrbuf);
-        wrbuf_destroy(display_wrbuf);
-        return;
+                    "Unknown ICU chain '%s'", icu_chain_id);
+        return 0;
     }
     pp2_charset_token_first(prt, value, 0);
     while ((facet_component = pp2_charset_token_next(prt)))
@@ -194,54 +170,126 @@ static void session_normalize_facet(struct session *s, const char *type,
         const char *display_component;
         if (*facet_component)
         {
-            if (wrbuf_len(facet_wrbuf))
-                wrbuf_puts(facet_wrbuf, " ");
-            wrbuf_puts(facet_wrbuf, facet_component);
+            if (wrbuf_len(norm_wr))
+                wrbuf_puts(norm_wr, " ");
+            wrbuf_puts(norm_wr, facet_component);
         }
         display_component = pp2_get_display(prt);
         if (display_component)
         {
-            if (wrbuf_len(display_wrbuf))
-                wrbuf_puts(display_wrbuf, " ");
-            wrbuf_puts(display_wrbuf, display_component);
+            if (wrbuf_len(disp_wr))
+                wrbuf_puts(disp_wr, " ");
+            wrbuf_puts(disp_wr, display_component);
         }
     }
     pp2_charset_token_destroy(prt);
+    return 1;
 }
 
-void add_facet(struct session *s, const char *type, const char *value, int count)
+static void session_normalize_facet(struct session *s,
+                                    const char *type, const char *value,
+                                    WRBUF display_wrbuf, WRBUF facet_wrbuf)
 {
-    WRBUF facet_wrbuf = wrbuf_alloc();
-    WRBUF display_wrbuf = wrbuf_alloc();
+    struct conf_service *service = s->service;
+    int i;
+    const char *icu_chain_id = 0;
 
-    session_normalize_facet(s, type, value, display_wrbuf, facet_wrbuf);
+    for (i = 0; i < service->num_metadata; i++)
+        if (!strcmp((service->metadata + i)->name, type))
+            icu_chain_id = (service->metadata + i)->facetrule;
+    if (!icu_chain_id)
+        icu_chain_id = "facet";
 
-    if (wrbuf_len(facet_wrbuf))
+    run_icu(s, icu_chain_id, value, facet_wrbuf, display_wrbuf);
+}
+
+struct facet_id {
+    char *client_id;
+    char *type;
+    char *id;
+    char *term;
+    struct facet_id *next;
+};
+
+static void session_add_id_facet(struct session *s, struct client *cl,
+                                 const char *type,
+                                 const char *id,
+                                 size_t id_len,
+                                 const char *term)
+{
+    struct facet_id *t = nmem_malloc(s->session_nmem, sizeof(*t));
+
+    t->client_id = nmem_strdup(s->session_nmem, client_get_id(cl));
+    t->type = nmem_strdup(s->session_nmem, type);
+    t->id = nmem_strdupn(s->session_nmem, id, id_len);
+    t->term = nmem_strdup(s->session_nmem, term);
+    t->next = s->facet_id_list;
+    s->facet_id_list = t;
+}
+
+
+// Look up a facet term, and return matching id
+// If facet type not found, returns 0
+// If facet type found, but no matching term, returns ""
+const char *session_lookup_id_facet(struct session *s, struct client *cl,
+                                    const char *type,
+                                    const char *term)
+{
+    char *retval = 0;
+    struct facet_id *t = s->facet_id_list;
+    for (; t; t = t->next) 
     {
-        int i;
-        for (i = 0; i < s->num_termlists; i++)
-            if (!strcmp(s->termlists[i].name, type))
-                break;
-        if (i == s->num_termlists)
+        if (!strcmp(client_get_id(cl), t->client_id) &&  !strcmp(t->type, type) )
         {
-            if (i == SESSION_MAX_TERMLISTS)
+            retval = "";
+            if ( !strcmp(t->term, term))
             {
-                session_log(s, YLOG_FATAL, "Too many termlists");
-                wrbuf_destroy(facet_wrbuf);
-                wrbuf_destroy(display_wrbuf);
-                return;
+                return t->id;
             }
+        }
+    }
+    return retval;
+}
+
+void add_facet(struct session *s, const char *type, const char *value, int count, struct client *cl)
+{
+    WRBUF facet_wrbuf = wrbuf_alloc();
+    WRBUF display_wrbuf = wrbuf_alloc();
+    const char *id = 0;
+    size_t id_len = 0;
 
-            s->termlists[i].name = nmem_strdup(s->nmem, type);
-            s->termlists[i].termlist = termlist_create(s->nmem);
-            s->num_termlists = i + 1;
+    /* inspect pz:facetmap:split:name ?? */
+    if (!strncmp(type, "split:", 6))
+    {
+        const char *cp = strchr(value, ':');
+        if (cp)
+        {
+            id = value;
+            id_len = cp - value;
+            value = cp + 1;
         }
+        type += 6;
+    }
 
-#if 0
-        session_log(s, YLOG_LOG, "Facets for %s: %s norm:%s (%d)", type, value, wrbuf_cstr(facet_wrbuf), count);
-#endif
-        termlist_insert(s->termlists[i].termlist, wrbuf_cstr(display_wrbuf),
-                        wrbuf_cstr(facet_wrbuf), count);
+    session_normalize_facet(s, type, value, display_wrbuf, facet_wrbuf);
+    if (wrbuf_len(facet_wrbuf))
+    {
+        struct named_termlist **tp = &s->termlists;
+        for (; (*tp); tp = &(*tp)->next)
+            if (!strcmp((*tp)->name, type))
+                break;
+        if (!*tp)
+        {
+            *tp = nmem_malloc(s->nmem, sizeof(**tp));
+            (*tp)->name = nmem_strdup(s->nmem, type);
+            (*tp)->termlist = termlist_create(s->nmem);
+            (*tp)->next = 0;
+        }
+        termlist_insert((*tp)->termlist, wrbuf_cstr(display_wrbuf),
+                        wrbuf_cstr(facet_wrbuf), id, id_len, count);
+        if (id)
+            session_add_id_facet(s, cl, type, id, id_len,
+                                 wrbuf_cstr(display_wrbuf));
     }
     wrbuf_destroy(facet_wrbuf);
     wrbuf_destroy(display_wrbuf);
@@ -311,7 +359,8 @@ static void insert_settings_parameters(struct session_database *sdb,
 
 // Add static values from session database settings if applicable
 static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
-    struct conf_service *service)
+                                   xmlNode *root,
+                                   struct conf_service *service)
 {
     int i;
 
@@ -326,8 +375,7 @@ static void insert_settings_values(struct session_database *sdb, xmlDoc *doc,
             const char *val = session_setting_oneval(sdb, offset);
             if (val)
             {
-                xmlNode *r = xmlDocGetRootElement(doc);
-                xmlNode *n = xmlNewTextChild(r, 0, (xmlChar *) "metadata",
+                xmlNode *n = xmlNewTextChild(root, 0, (xmlChar *) "metadata",
                                              (xmlChar *) val);
                 xmlSetProp(n, (xmlChar *) "type", (xmlChar *) md->name);
             }
@@ -352,17 +400,6 @@ static xmlDoc *normalize_record(struct session *se,
         {
             session_log(se, YLOG_WARN, "Normalize failed");
         }
-        else
-        {
-            insert_settings_values(sdb, rdoc, service);
-
-            if (global_parameters.dump_records)
-            {
-                session_log(se, YLOG_LOG, "Normalized record from %s",
-                            sdb->database->id);
-                log_xml_doc(rdoc);
-            }
-        }
     }
     return rdoc;
 }
@@ -533,7 +570,6 @@ static void select_targets_callback(struct session *se,
         l->next = se->clients_cached;
         se->clients_cached = l;
     }
-    /* set session always. If may be 0 if client is not active */
     client_set_session(cl, se);
 
     l = xmalloc(sizeof(*l));
@@ -582,6 +618,7 @@ static void session_remove_cached_clients(struct session *se)
         client_lock(l->client);
         client_set_session(l->client, 0);
         client_set_database(l->client, 0);
+        client_mark_dead(l->client);
         client_unlock(l->client);
         client_destroy(l->client);
         xfree(l);
@@ -629,7 +666,8 @@ static void session_clear_set(struct session *se, struct reclist_sortparms *sp)
                     nmem_total(se->nmem));
     nmem_reset(se->nmem);
     se->total_records = se->total_merged = 0;
-    se->num_termlists = 0;
+    se->termlists = 0;
+    relevance_clear(se->relevance);
 
     /* reset list of sorted results and clear to relevance search */
     se->sorted_results = nmem_malloc(se->nmem, sizeof(*se->sorted_results));
@@ -644,31 +682,55 @@ static void session_clear_set(struct session *se, struct reclist_sortparms *sp)
     se->reclist = reclist_create(se->nmem);
 }
 
-static void session_sort_unlocked(struct session *se, struct reclist_sortparms *sp)
+void session_sort(struct session *se, struct reclist_sortparms *sp,
+                  const char *mergekey, const char *rank)
 {
-    struct reclist_sortparms *sr;
     struct client_list *l;
     const char *field = sp->name;
     int increasing = sp->increasing;
     int type  = sp->type;
     int clients_research = 0;
 
+    session_enter(se, "session_sort");
     session_log(se, YLOG_DEBUG, "session_sort field=%s increasing=%d type=%d",
                 field, increasing, type);
-    /* see if we already have sorted for this criteria */
-    for (sr = se->sorted_results; sr; sr = sr->next)
+
+    if (rank && (!se->rank || strcmp(se->rank, rank)))
     {
-        if (!reclist_sortparms_cmp(sr, sp))
-            break;
+        /* new rank must research/reingest anyway */
+        assert(rank);
+        xfree(se->rank);
+        se->rank = *rank ? xstrdup(rank) : 0;
+        clients_research = 1;
+        session_log(se, YLOG_DEBUG, "session_sort: new rank = %s",
+                    rank);
     }
-    if (sr)
+    if (mergekey && (!se->mergekey || strcmp(se->mergekey, mergekey)))
     {
-        session_log(se, YLOG_DEBUG, "search_sort: field=%s increasing=%d type=%d already fetched",
-                    field, increasing, type);
-        return;
+        /* new mergekey must research/reingest anyway */
+        assert(mergekey);
+        xfree(se->mergekey);
+        se->mergekey = *mergekey ? xstrdup(mergekey) : 0;
+        clients_research = 1;
+        session_log(se, YLOG_DEBUG, "session_sort: new mergekey = %s",
+                    mergekey);
     }
-    session_log(se, YLOG_DEBUG, "search_sort: field=%s increasing=%d type=%d must fetch",
-                    field, increasing, type);
+    if (clients_research == 0)
+    {
+        struct reclist_sortparms *sr;
+        for (sr = se->sorted_results; sr; sr = sr->next)
+            if (!reclist_sortparms_cmp(sr, sp))
+                break;
+        if (sr)
+        {
+            session_log(se, YLOG_LOG, "session_sort: field=%s increasing=%d type=%d already fetched",
+                        field, increasing, type);
+            session_leave(se, "session_sort");
+            return;
+        }
+    }
+    session_log(se, YLOG_DEBUG, "session_sort: field=%s increasing=%d type=%d must fetch",
+                field, increasing, type);
 
     // We need to reset reclist on every sort that changes the records, not just for position
     // So if just one client requires new searching, we need to clear set.
@@ -679,50 +741,79 @@ static void session_sort_unlocked(struct session *se, struct reclist_sortparms *
         struct client *cl = l->client;
         // Assume no re-search is required.
         client_parse_init(cl, 1);
-        clients_research += client_parse_sort(cl, sp);
+        clients_research += client_parse_sort(cl, sp, 0);
     }
-    if (clients_research) {
-        session_log(se, YLOG_DEBUG,
-                    "Reset results due to %d clients researching",
-                    clients_research);
-        session_clear_set(se, sp);
-    }
-    else {
+    if (!clients_research || se->clients_starting)
+    {
         // A new sorting based on same record set
-        sr = nmem_malloc(se->nmem, sizeof(*sr));
+        struct reclist_sortparms *sr = nmem_malloc(se->nmem, sizeof(*sr));
         sr->name = nmem_strdup(se->nmem, field);
         sr->increasing = increasing;
         sr->type = type;
         sr->next = se->sorted_results;
         se->sorted_results = sr;
-        session_log(se, YLOG_DEBUG, "No research/ingesting done");
-        return ;
+        session_log(se, YLOG_DEBUG, "session_sort: no research/ingesting done");
+        session_leave(se, "session_sort");
     }
-    session_log(se, YLOG_DEBUG, "Re- search/ingesting for clients due to change in sort order");
-
-    for (l = se->clients_active; l; l = l->next)
+    else
     {
-        struct client *cl = l->client;
-        if (client_get_state(cl) == Client_Connecting ||
-            client_get_state(cl) == Client_Idle ||
-            client_get_state(cl) == Client_Working) {
-            client_start_search(cl);
-        }
-        else {
-            session_log(se, YLOG_DEBUG,
-                        "Client %s: No re-start/ingest in show. Wrong client state: %d",
-                        client_get_id(cl), client_get_state(cl));
-        }
+        se->clients_starting = 1;
+        session_log(se, YLOG_DEBUG,
+                    "session_sort: reset results due to %d clients researching",
+                    clients_research);
+        session_clear_set(se, sp);
+        session_log(se, YLOG_DEBUG, "Re- search/ingesting for clients due to change in sort order");
 
+        session_leave(se, "session_sort");
+        for (l = se->clients_active; l; l = l->next)
+        {
+            struct client *cl = l->client;
+            if (client_get_state(cl) == Client_Connecting ||
+                client_get_state(cl) == Client_Idle ||
+                client_get_state(cl) == Client_Working) {
+                client_start_search(cl);
+            }
+            else
+            {
+                session_log(se, YLOG_DEBUG,
+                            "session_sort: %s: No re-start/ingest in show. "
+                            "Wrong client state: %d",
+                            client_get_id(cl), client_get_state(cl));
+            }
+        }
+        session_enter(se, "session_sort");
+        se->clients_starting = 0;
+        se->force_position = 0;
+        session_leave(se, "session_sort");
     }
 }
 
-void session_sort(struct session *se, struct reclist_sortparms *sp) {
-    //session_enter(se, "session_sort");
-    session_sort_unlocked(se, sp);
-    //session_leave(se, "session_sort");
-}
+void session_stop(struct session *se)
+{
+    struct client_list *l;
+    session_enter(se, "session_stop1");
+    if (se->clients_starting)
+    {
+        session_leave(se, "session_stop1");
+        return;
+    }
+    se->clients_starting = 1;
+    session_leave(se, "session_stop1");
 
+    session_alert_watch(se, SESSION_WATCH_SHOW);
+    session_alert_watch(se, SESSION_WATCH_BYTARGET);
+    session_alert_watch(se, SESSION_WATCH_TERMLIST);
+    session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
+
+    for (l = se->clients_active; l; l = l->next)
+    {
+        struct client *cl = l->client;
+        client_stop(cl);
+    }
+    session_enter(se, "session_stop2");
+    se->clients_starting = 0;
+    session_leave(se, "session_stop2");
+}
 
 enum pazpar2_error_code session_search(struct session *se,
                                        const char *query,
@@ -731,18 +822,36 @@ enum pazpar2_error_code session_search(struct session *se,
                                        const char *filter,
                                        const char *limit,
                                        const char **addinfo,
-                                       struct reclist_sortparms *sp)
+                                       const char **addinfo2,
+                                       struct reclist_sortparms *sp,
+                                       const char *mergekey,
+                                       const char *rank)
 {
     int live_channels = 0;
     int no_working = 0;
     int no_failed_query = 0;
     int no_failed_limit = 0;
-    struct client_list *l, *l0;
+    int no_sortmap = 0;
+    struct client_list *l;
 
-    session_log(se, YLOG_DEBUG, "Search");
+    session_log(se, YLOG_LOG, "search query %s", query);
+    if (filter)
+        session_log(se, YLOG_LOG, "search filter %s", filter);
+    if (limit)
+        session_log(se, YLOG_LOG, "search limit %s", limit);
 
     *addinfo = 0;
 
+    session_enter(se, "session_search0");
+    if (se->clients_starting)
+    {
+        session_leave(se, "session_search0");
+        return PAZPAR2_NO_ERROR;
+    }
+    se->clients_starting = 1;
+    se->force_position = 0;
+    session_leave(se, "session_search0");
+
     if (se->settings_modified) {
         session_remove_cached_clients(se);
     }
@@ -752,6 +861,17 @@ enum pazpar2_error_code session_search(struct session *se,
     session_enter(se, "session_search");
     se->settings_modified = 0;
 
+    if (mergekey)
+    {
+        xfree(se->mergekey);
+        se->mergekey = *mergekey ? xstrdup(mergekey) : 0;
+    }
+    if (rank)
+    {
+        xfree(se->rank);
+        se->rank = *rank ? xstrdup(rank) : 0;
+    }
+
     session_clear_set(se, sp);
     relevance_destroy(&se->relevance);
 
@@ -759,6 +879,7 @@ enum pazpar2_error_code session_search(struct session *se,
     if (!live_channels)
     {
         session_leave(se, "session_search");
+        se->clients_starting = 0;
         return PAZPAR2_NO_TARGETS;
     }
 
@@ -768,14 +889,19 @@ enum pazpar2_error_code session_search(struct session *se,
     {
         *addinfo = "limit";
         session_leave(se, "session_search");
+        se->clients_starting = 0;
+        session_reset_active_clients(se, 0);
         return PAZPAR2_MALFORMED_PARAMETER_VALUE;
     }
 
-    l0 = se->clients_active;
-    se->clients_active = 0;
     session_leave(se, "session_search");
 
-    for (l = l0; l; l = l->next)
+    session_alert_watch(se, SESSION_WATCH_SHOW);
+    session_alert_watch(se, SESSION_WATCH_BYTARGET);
+    session_alert_watch(se, SESSION_WATCH_TERMLIST);
+    session_alert_watch(se, SESSION_WATCH_SHOW_PREF);
+
+    for (l = se->clients_active; l; l = l->next)
     {
         int parse_ret;
         struct client *cl = l->client;
@@ -783,7 +909,7 @@ enum pazpar2_error_code session_search(struct session *se,
         if (prepare_map(se, client_get_database(cl)) < 0)
             continue;
 
-        parse_ret = client_parse_query(cl, query, se->facet_limits);
+        parse_ret = client_parse_query(cl, query, se->facet_limits, addinfo2);
         if (parse_ret == -1)
             no_failed_query++;
         else if (parse_ret == -2)
@@ -793,13 +919,22 @@ enum pazpar2_error_code session_search(struct session *se,
         else
         {
             client_parse_range(cl, startrecs, maxrecs);
-            client_parse_sort(cl, sp);
+            client_parse_sort(cl, sp, &no_sortmap);
             client_start_search(cl);
             no_working++;
         }
     }
-    session_reset_active_clients(se, l0);
-
+    session_log(se, YLOG_LOG, "search "
+                "working %d sortmap %d failed-query %d failed-limit %d",
+                no_working, no_sortmap, no_failed_query, no_failed_limit);
+    session_enter(se, "session_search2");
+    if (no_working == 1 && no_sortmap == 1)
+    {
+        se->force_position = 1;
+        yaz_log(YLOG_LOG, "force_position=1");
+    }
+    se->clients_starting = 0;
+    session_leave(se, "session_search2");
     if (no_working == 0)
     {
         if (no_failed_query > 0)
@@ -815,7 +950,6 @@ enum pazpar2_error_code session_search(struct session *se,
         else
             return PAZPAR2_NO_TARGETS;
     }
-    session_log(se, YLOG_LOG, "session_start_search done");
     return PAZPAR2_NO_ERROR;
 }
 
@@ -859,7 +993,7 @@ void session_init_databases(struct session *se)
 // Probably session_init_databases_fun should be refactored instead of
 // called here.
 static struct session_database *load_session_database(struct session *se,
-                                                      char *id)
+                                                      const char *id)
 {
     struct database *db = new_database_inherit_settings(id, se->session_nmem, se->service->settings);
     session_init_databases_fun((void*) se, db);
@@ -870,7 +1004,7 @@ static struct session_database *load_session_database(struct session *se,
 
 // Find an existing session database. If not found, load it
 static struct session_database *find_session_database(struct session *se,
-                                                      char *id)
+                                                      const char *id)
 {
     struct session_database *sdb;
 
@@ -881,43 +1015,55 @@ static struct session_database *find_session_database(struct session *se,
 }
 
 // Apply a session override to a database
-void session_apply_setting(struct session *se, char *dbname, char *setting,
-                           char *value)
+void session_apply_setting(struct session *se, const char *dbname,
+                           const char *name, const char *value)
 {
-    struct session_database *sdb = find_session_database(se, dbname);
-    struct conf_service *service = se->service;
-    struct setting *new = nmem_malloc(se->session_nmem, sizeof(*new));
-    int offset = settings_create_offset(service, setting);
-
-    expand_settings_array(&sdb->settings, &sdb->num_settings, offset,
-                          se->session_nmem);
-    new->precedence = 0;
-    new->target = dbname;
-    new->name = setting;
-    new->value = value;
-    new->next = sdb->settings[offset];
-    sdb->settings[offset] = new;
-
-    se->settings_modified = 1;
-
-    // Force later recompute of settings-driven data structures
-    // (happens when a search starts and client connections are prepared)
-    switch (offset)
-    {
-    case PZ_XSLT:
-        if (sdb->map)
-        {
+    session_enter(se, "session_apply_setting");
+    {
+        struct session_database *sdb = find_session_database(se, dbname);
+        struct conf_service *service = se->service;
+        struct setting *s;
+        int offset = settings_create_offset(service, name);
+
+        expand_settings_array(&sdb->settings, &sdb->num_settings, offset,
+                              se->session_nmem);
+        // Force later recompute of settings-driven data structures
+        // (happens when a search starts and client connections are prepared)
+        if (offset == PZ_XSLT)
             sdb->map = 0;
+        se->settings_modified = 1;
+        for (s = sdb->settings[offset]; s; s = s->next)
+            if (!strcmp(s->name, name) &&
+                dbname && s->target && !strcmp(dbname, s->target))
+                break;
+        if (!s)
+        {
+            s = nmem_malloc(se->session_nmem, sizeof(*s));
+            s->precedence = 0;
+            s->target = nmem_strdup(se->session_nmem, dbname);
+            s->name = nmem_strdup(se->session_nmem, name);
+            s->next = sdb->settings[offset];
+            sdb->settings[offset] = s;
         }
-        break;
+        s->value = nmem_strdup(se->session_nmem, value);
     }
+    session_leave(se, "session_apply_setting");
 }
 
 void session_destroy(struct session *se)
 {
     struct session_database *sdb;
-    session_log(se, YLOG_DEBUG, "Destroying");
-    session_use(-1);
+    struct facet_id *t;
+    int sessions_total = session_use(-1);
+    int no_facet_ids = 0;
+
+    for (t = se->facet_id_list; t; t = t->next)
+        no_facet_ids++;
+    session_log(se, YLOG_LOG, "destroy "
+                "session-total %d nmem-op %zd nmem-ses %zd facets-ids %d",
+                sessions_total,
+                nmem_total(se->nmem), nmem_total(se->session_nmem),
+                no_facet_ids);
     session_remove_cached_clients(se);
 
     for (sdb = se->databases; sdb; sdb = sdb->next)
@@ -925,10 +1071,8 @@ void session_destroy(struct session *se)
     normalize_cache_destroy(se->normalize_cache);
     relevance_destroy(&se->relevance);
     reclist_destroy(se->reclist);
-    if (nmem_total(se->nmem))
-        session_log(se, YLOG_DEBUG, "NMEN operation usage %zd", nmem_total(se->nmem));
-    if (nmem_total(se->session_nmem))
-        session_log(se, YLOG_DEBUG, "NMEN session usage %zd", nmem_total(se->session_nmem));
+    xfree(se->mergekey);
+    xfree(se->rank);
     facet_limits_destroy(se->facet_limits);
     nmem_destroy(se->nmem);
     service_destroy(se->service);
@@ -946,8 +1090,8 @@ size_t session_get_memory_status(struct session *session) {
 }
 
 
-struct session *new_session(NMEM nmem, struct conf_service *service,
-                            unsigned session_id)
+struct session *session_create(NMEM nmem, struct conf_service *service,
+                               unsigned session_id)
 {
     int i;
     struct session *session = nmem_malloc(nmem, sizeof(*session));
@@ -963,16 +1107,21 @@ struct session *new_session(NMEM nmem, struct conf_service *service,
     session->total_records = 0;
     session->number_of_warnings_unknown_elements = 0;
     session->number_of_warnings_unknown_metadata = 0;
-    session->num_termlists = 0;
+    session->termlists = 0;
     session->reclist = reclist_create(nmem);
     session->clients_active = 0;
     session->clients_cached = 0;
     session->settings_modified = 0;
     session->session_nmem = nmem;
+    session->facet_id_list = 0;
     session->nmem = nmem_create();
     session->databases = 0;
     session->sorted_results = 0;
     session->facet_limits = 0;
+    session->mergekey = 0;
+    session->rank = 0;
+    session->clients_starting = 0;
+    session->force_position = 0;
 
     for (i = 0; i <= SESSION_WATCH_MAX; i++)
     {
@@ -982,12 +1131,12 @@ struct session *new_session(NMEM nmem, struct conf_service *service,
     session->normalize_cache = normalize_cache_create();
     session->session_mutex = 0;
     pazpar2_mutex_create(&session->session_mutex, tmp_str);
-    session_use(1);
+
+    i = session_use(1);
+    session_log(session, YLOG_LOG, "create session-total %d", i);
     return session;
 }
 
-const char * client_get_suggestions_xml(struct client *cl, WRBUF wrbuf);
-
 static struct hitsbytarget *hitsbytarget_nb(struct session *se,
                                             int *count, NMEM nmem)
 {
@@ -1006,13 +1155,13 @@ static struct hitsbytarget *hitsbytarget_nb(struct session *se,
         WRBUF w = wrbuf_alloc();
         const char *name = session_setting_oneval(client_get_database(cl),
                                                   PZ_NAME);
-
         res[*count].id = client_get_id(cl);
         res[*count].name = *name ? name : "Unknown";
         res[*count].hits = client_get_hits(cl);
         res[*count].approximation = client_get_approximation(cl);
-        res[*count].records = client_get_num_records(cl);
-        res[*count].filtered = client_get_num_records_filtered(cl);
+        res[*count].records = client_get_num_records(cl,
+                                                     &res[*count].filtered,
+                                                     0, 0);
         res[*count].diagnostic =
             client_get_diagnostic(cl, &res[*count].message,
                                   &res[*count].addinfo);
@@ -1021,8 +1170,11 @@ static struct hitsbytarget *hitsbytarget_nb(struct session *se,
         session_settings_dump(se, client_get_database(cl), w);
         res[*count].settings_xml = nmem_strdup(nmem, wrbuf_cstr(w));
         wrbuf_rewind(w);
-        wrbuf_puts(w, "");
-        res[*count].suggestions_xml = nmem_strdup(nmem, client_get_suggestions_xml(cl, w));
+        res[*count].suggestions_xml =
+            nmem_strdup(nmem, client_get_suggestions_xml(cl, w));
+
+        res[*count].query_data =
+            client_get_query(cl, &res[*count].query_type, nmem);
         wrbuf_destroy(w);
         (*count)++;
     }
@@ -1107,7 +1259,7 @@ static int targets_termlist_nb(WRBUF wrbuf, struct session *se, int num,
 void perform_termlist(struct http_channel *c, struct session *se,
                       const char *name, int num, int version)
 {
-    int i, j;
+    int j;
     NMEM nmem_tmp = nmem_create();
     char **names;
     int num_names = 0;
@@ -1124,9 +1276,10 @@ void perform_termlist(struct http_channel *c, struct session *se,
         const char *tname;
         int must_generate_empty = 1; /* bug 5350 */
 
-        for (i = 0; i < se->num_termlists; i++)
+        struct named_termlist *t = se->termlists;
+        for (; t; t = t->next)
         {
-            tname = se->termlists[i].name;
+            tname = t->name;
             if (!strcmp(names[j], tname) || !strcmp(names[j], "*"))
             {
                 struct termlist_score **p = 0;
@@ -1137,8 +1290,7 @@ void perform_termlist(struct http_channel *c, struct session *se,
                 wrbuf_puts(c->wrbuf, "\">\n");
                 must_generate_empty = 0;
 
-                p = termlist_highscore(se->termlists[i].termlist, &len,
-                                       nmem_tmp);
+                p = termlist_highscore(t->termlist, &len, nmem_tmp);
                 if (p)
                 {
                     int i;
@@ -1152,7 +1304,6 @@ void perform_termlist(struct http_channel *c, struct session *se,
                         wrbuf_puts(c->wrbuf, "<name>");
                         wrbuf_xmlputs(c->wrbuf, p[i]->display_term);
                         wrbuf_puts(c->wrbuf, "</name>");
-
                         wrbuf_printf(c->wrbuf,
                                      "<frequency>%d</frequency>",
                                      p[i]->frequency);
@@ -1206,7 +1357,7 @@ struct record_cluster *show_single_start(struct session *se, const char *id,
     session_enter(se, "show_single_start");
     *prev_r = 0;
     *next_r = 0;
-    reclist_limit(se->reclist, se);
+    reclist_limit(se->reclist, se, 1);
 
     reclist_enter(se->reclist);
     while ((r = reclist_read_record(se->reclist)))
@@ -1248,8 +1399,24 @@ int session_fetch_more(struct session *se)
             }
             else
             {
-                session_log(se, YLOG_LOG, "%s: no more to fetch",
-                            client_get_id(cl));
+                int filtered;
+                int ingest_failures;
+                int record_failures;
+                int num = client_get_num_records(
+                    cl, &filtered, &ingest_failures, &record_failures);
+
+                session_log(se, YLOG_LOG, "%s: hits=" ODR_INT_PRINTF
+                            " fetched=%d filtered=%d",
+                            client_get_id(cl),
+                            client_get_hits(cl),
+                            num, filtered);
+                if (ingest_failures || record_failures)
+                {
+                    session_log(se, YLOG_WARN, "%s:"
+                                " ingest failures=%d record failures=%d",
+                                client_get_id(cl),
+                                ingest_failures, record_failures);
+                }
             }
         }
         else
@@ -1273,6 +1440,7 @@ struct record_cluster **show_range_start(struct session *se,
     struct reclist_sortparms *spp;
     struct client_list *l;
     int i;
+    NMEM nmem_tmp = 0;
 #if USE_TIMING
     yaz_timing_t t = yaz_timing_create();
 #endif
@@ -1280,11 +1448,11 @@ struct record_cluster **show_range_start(struct session *se,
     *sumhits = 0;
     *approx_hits = 0;
     *total = 0;
-    reclist_limit(se->reclist, se);
+    reclist_limit(se->reclist, se, 0);
     if (se->relevance)
     {
         for (spp = sp; spp; spp = spp->next)
-            if (spp->type == Metadata_sortkey_relevance)
+            if (spp->type == Metadata_type_relevance)
             {
                 relevance_prepare_read(se->relevance, se->reclist);
                 break;
@@ -1294,7 +1462,15 @@ struct record_cluster **show_range_start(struct session *se,
             *approx_hits += client_get_approximation(l->client);
         }
     }
+    if (se->force_position)
+    {
+        nmem_tmp = nmem_create();
+        sp = reclist_parse_sortparms(nmem_tmp, "position:1", 0);
+        assert(sp);
+    }
     reclist_sort(se->reclist, sp);
+    if (nmem_tmp)
+        nmem_destroy(nmem_tmp);
 
     reclist_enter(se->reclist);
     *total = reclist_get_num_records(se->reclist);
@@ -1317,9 +1493,7 @@ struct record_cluster **show_range_start(struct session *se,
                 client_update_show_stat(rec->client, 1);
         }
     }
-    if (*num > 0)
-        recs =
-            nmem_malloc(se->nmem, *num * sizeof(struct record_cluster *));
+    recs = nmem_malloc(se->nmem, (*num > 0 ? *num : 1) * sizeof(*recs));
     for (i = 0; i < *num; i++)
     {
         struct record_cluster *r = reclist_read_record(se->reclist);
@@ -1401,7 +1575,8 @@ void statistics(struct session *se, struct statistics *stat)
 }
 
 static struct record_metadata *record_metadata_init(
-    NMEM nmem, const char *value, enum conf_metadata_type type,
+    NMEM nmem, const char *value, const char *norm,
+    enum conf_metadata_type type,
     struct _xmlAttr *attr)
 {
     struct record_metadata *rec_md = record_metadata_create(nmem);
@@ -1427,16 +1602,29 @@ static struct record_metadata *record_metadata_init(
     }
     *attrp = 0;
 
-    if (type == Metadata_type_generic)
+    switch (type)
     {
-        char *p = nmem_strdup(nmem, value);
-
-        p = normalize7bit_generic(p, " ,/.:([");
-
-        rec_md->data.text.disp = p;
+    case Metadata_type_generic:
+    case Metadata_type_skiparticle:
+        if (norm)
+        {
+            rec_md->data.text.disp = nmem_strdup(nmem, value);
+            rec_md->data.text.norm = nmem_strdup(nmem, norm);
+        }
+        else
+        {
+            if (strstr(value, "://")) /* looks like a URL */
+                rec_md->data.text.disp = nmem_strdup(nmem, value);
+            else
+                rec_md->data.text.disp =
+                    normalize7bit_generic(nmem_strdup(nmem, value), " ,/.:([");
+            rec_md->data.text.norm = rec_md->data.text.disp;
+        }
         rec_md->data.text.sort = 0;
-    }
-    else if (type == Metadata_type_year || type == Metadata_type_date)
+        rec_md->data.text.snippet = 0;
+        break;
+    case Metadata_type_year:
+    case Metadata_type_date:
     {
         int first, last;
         int longdate = 0;
@@ -1449,11 +1637,38 @@ static struct record_metadata *record_metadata_init(
         rec_md->data.number.min = first;
         rec_md->data.number.max = last;
     }
-    else
+    break;
+    case Metadata_type_float:
+        rec_md->data.fnumber = atof(value);
+        break;
+    case Metadata_type_relevance:
+    case Metadata_type_position:
+    case Metadata_type_retrieval:
         return 0;
+    }
     return rec_md;
 }
 
+static void mergekey_norm_wr(pp2_charset_fact_t charsets,
+                             WRBUF norm_wr, const char *value)
+{
+    const char *norm_str;
+    pp2_charset_token_t prt =
+        pp2_charset_token_create(charsets, "mergekey");
+
+    pp2_charset_token_first(prt, value, 0);
+    while ((norm_str = pp2_charset_token_next(prt)))
+    {
+        if (*norm_str)
+        {
+            if (wrbuf_len(norm_wr))
+                wrbuf_puts(norm_wr, " ");
+            wrbuf_puts(norm_wr, norm_str);
+        }
+    }
+    pp2_charset_token_destroy(prt);
+}
+
 static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
                                  struct conf_service *service, WRBUF norm_wr)
 {
@@ -1465,70 +1680,52 @@ static int get_mergekey_from_doc(xmlDoc *doc, xmlNode *root, const char *name,
             continue;
         if (!strcmp((const char *) n->name, "metadata"))
         {
-            xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
+            const char *type = yaz_xml_get_prop(n, "type");
             if (type == NULL) {
                 yaz_log(YLOG_FATAL, "Missing type attribute on metadata element. Skipping!");
             }
             else if (!strcmp(name, (const char *) type))
             {
                 xmlChar *value = xmlNodeListGetString(doc, n->children, 1);
-                if (value)
+                if (value && *value)
                 {
-                    const char *norm_str;
-                    pp2_charset_token_t prt =
-                        pp2_charset_token_create(service->charsets, "mergekey");
-
-                    pp2_charset_token_first(prt, (const char *) value, 0);
                     if (wrbuf_len(norm_wr) > 0)
                         wrbuf_puts(norm_wr, " ");
                     wrbuf_puts(norm_wr, name);
-                    while ((norm_str =
-                            pp2_charset_token_next(prt)))
-                    {
-                        if (*norm_str)
-                        {
-                            wrbuf_puts(norm_wr, " ");
-                            wrbuf_puts(norm_wr, norm_str);
-                        }
-                    }
-                    xmlFree(value);
-                    pp2_charset_token_destroy(prt);
+                    mergekey_norm_wr(service->charsets, norm_wr,
+                                     (const char *) value);
                     no_found++;
                 }
+                if (value)
+                    xmlFree(value);
             }
-            xmlFree(type);
         }
     }
     return no_found;
 }
 
-static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
-                                struct conf_service *service, NMEM nmem)
+static const char *get_mergekey(xmlDoc *doc, xmlNode *root, 
+                                struct client *cl, int record_no,
+                                struct conf_service *service, NMEM nmem,
+                                const char *session_mergekey)
 {
     char *mergekey_norm = 0;
-    xmlNode *root = xmlDocGetRootElement(doc);
     WRBUF norm_wr = wrbuf_alloc();
+    const char *mergekey;
 
-    /* consider mergekey from XSL first */
-    xmlChar *mergekey = xmlGetProp(root, (xmlChar *) "mergekey");
-    if (mergekey)
+    if (session_mergekey)
     {
-        const char *norm_str;
-        pp2_charset_token_t prt =
-            pp2_charset_token_create(service->charsets, "mergekey");
+        int i, num = 0;
+        char **values = 0;
+        nmem_strsplit_escape2(nmem, ",", session_mergekey, &values,
+                              &num, 1, '\\', 1);
 
-        pp2_charset_token_first(prt, (const char *) mergekey, 0);
-        while ((norm_str = pp2_charset_token_next(prt)))
-        {
-            if (*norm_str)
-            {
-                if (wrbuf_len(norm_wr))
-                    wrbuf_puts(norm_wr, " ");
-                wrbuf_puts(norm_wr, norm_str);
-            }
-        }
-        pp2_charset_token_destroy(prt);
-        xmlFree(mergekey);
+        for (i = 0; i < num; i++)
+            get_mergekey_from_doc(doc, root, values[i], service, norm_wr);
+    }
+    else if ((mergekey = yaz_xml_get_prop(root, "mergekey")))
+    {
+        mergekey_norm_wr(service->charsets, norm_wr, mergekey);
     }
     else
     {
@@ -1555,7 +1752,7 @@ static const char *get_mergekey(xmlDoc *doc, struct client *cl, int record_no,
     /* generate unique key if none is not generated already or is empty */
     if (wrbuf_len(norm_wr) == 0)
     {
-        wrbuf_printf(norm_wr, "position: %s-%d",
+        wrbuf_printf(norm_wr, "position: %s-%06d",
                      client_get_id(cl), record_no);
     }
     else
@@ -1595,7 +1792,7 @@ static int check_record_filter(xmlNode *root, struct session_database *sdb)
             continue;
         if (!strcmp((const char *) n->name, "metadata"))
         {
-            xmlChar *type = xmlGetProp(n, (xmlChar *) "type");
+            const char *type = yaz_xml_get_prop(n, "type");
             if (type)
             {
                 size_t len;
@@ -1623,19 +1820,47 @@ static int check_record_filter(xmlNode *root, struct session_database *sdb)
                     }
                     xmlFree(value);
                 }
-                xmlFree(type);
             }
         }
     }
     return match;
 }
 
-
 static int ingest_to_cluster(struct client *cl,
+                             WRBUF wrbuf_disp,
+                             WRBUF wrbuf_norm,
                              xmlDoc *xdoc,
                              xmlNode *root,
                              int record_no,
-                             const char *mergekey_norm);
+                             struct record_metadata_attr *mergekey);
+
+static int ingest_sub_record(struct client *cl, xmlDoc *xdoc, xmlNode *root,
+                             int record_no, NMEM nmem,
+                             struct session_database *sdb,
+                             struct record_metadata_attr *mergekeys)
+{
+    int ret = 0;
+    struct session *se = client_get_session(cl);
+    WRBUF wrbuf_disp, wrbuf_norm;
+
+    if (!check_record_filter(root, sdb))
+    {
+        session_log(se, YLOG_LOG,
+                    "Filtered out record no %d from %s",
+                    record_no, sdb->database->id);
+        return 0;
+    }
+    wrbuf_disp = wrbuf_alloc();
+    wrbuf_norm = wrbuf_alloc();
+    session_enter(se, "ingest_sub_record");
+    if (client_get_session(cl) == se && se->relevance)
+        ret = ingest_to_cluster(cl, wrbuf_disp, wrbuf_norm,
+                                xdoc, root, record_no, mergekeys);
+    session_leave(se, "ingest_sub_record");
+    wrbuf_destroy(wrbuf_norm);
+    wrbuf_destroy(wrbuf_disp);
+    return ret;
+}
 
 /** \brief ingest XML record
     \param cl client holds the result set for record
@@ -1650,49 +1875,123 @@ int ingest_record(struct client *cl, const char *rec,
                   int record_no, NMEM nmem)
 {
     struct session *se = client_get_session(cl);
-    int ret = 0;
     struct session_database *sdb = client_get_database(cl);
     struct conf_service *service = se->service;
     xmlDoc *xdoc = normalize_record(se, sdb, service, rec, nmem);
-    xmlNode *root;
-    const char *mergekey_norm;
+    int r = ingest_xml_record(cl, xdoc, record_no, nmem, 0);
+    client_store_xdoc(cl, record_no, xdoc);
+    return r;
+}
 
+int ingest_xml_record(struct client *cl, xmlDoc *xdoc,
+                      int record_no, NMEM nmem, int cached_copy)
+{
+    struct session *se = client_get_session(cl);
+    struct session_database *sdb = client_get_database(cl);
+    struct conf_service *service = se->service;
+    xmlNode *root;
+    int r = 0;
     if (!xdoc)
         return -1;
 
+    if (global_parameters.dump_records)
+    {
+        session_log(se, YLOG_LOG, "Normalized record from %s",
+                    sdb->database->id);
+        log_xml_doc(xdoc);
+    }
+
     root = xmlDocGetRootElement(xdoc);
 
-    if (!check_record_filter(root, sdb))
+    if (!strcmp((const char *) root->name, "cluster"))
     {
-        session_log(se, YLOG_LOG, "Filtered out record no %d from %s", record_no, sdb->database->id);
-        xmlFreeDoc(xdoc);
-        return -2;
+        int no_merge_keys = 0;
+        int no_merge_dups = 0;
+        xmlNode *sroot;
+        struct record_metadata_attr *mk = 0;
+
+        for (sroot = root->children; sroot; sroot = sroot->next)
+            if (sroot->type == XML_ELEMENT_NODE &&
+                !strcmp((const char *) sroot->name, "record"))
+            {
+                struct record_metadata_attr **mkp;
+                const char *mergekey_norm =
+                    get_mergekey(xdoc, sroot, cl, record_no, service, nmem,
+                                 se->mergekey);
+                if (!mergekey_norm)
+                {
+                    r = -1;
+                    break;
+                }
+                for (mkp = &mk; *mkp; mkp = &(*mkp)->next)
+                    if (!strcmp((*mkp)->value, mergekey_norm))
+                        break;
+                if (!*mkp)
+                {
+                    *mkp = (struct record_metadata_attr*)
+                        nmem_malloc(nmem, sizeof(**mkp));
+                    (*mkp)->name = 0;
+                    (*mkp)->value = nmem_strdup(nmem, mergekey_norm);
+                    (*mkp)->next = 0;
+                    no_merge_keys++;
+                }
+                else
+                    no_merge_dups++;
+            }
+        if (no_merge_keys > 1 || no_merge_dups > 0)
+        {
+            yaz_log(YLOG_LOG, "Got %d mergekeys, %d dups for position %d",
+                    no_merge_keys, no_merge_dups, record_no);
+        }
+        for (sroot = root->children; !r && sroot; sroot = sroot->next)
+            if (sroot->type == XML_ELEMENT_NODE &&
+                !strcmp((const char *) sroot->name, "record"))
+            {
+                if (!cached_copy)
+                    insert_settings_values(sdb, xdoc, root, service);
+                r = ingest_sub_record(cl, xdoc, sroot, record_no, nmem, sdb,
+                                      mk);
+            }
     }
-
-    mergekey_norm = get_mergekey(xdoc, cl, record_no, service, nmem);
-    if (!mergekey_norm)
+    else if (!strcmp((const char *) root->name, "record"))
     {
-        session_log(se, YLOG_WARN, "Got no mergekey");
-        xmlFreeDoc(xdoc);
-        return -1;
+        const char *mergekey_norm =
+            get_mergekey(xdoc, root, cl, record_no, service, nmem,
+                         se->mergekey);
+        if (mergekey_norm)
+        {
+            struct record_metadata_attr *mk = (struct record_metadata_attr*)
+                nmem_malloc(nmem, sizeof(*mk));
+            mk->name = 0;
+            mk->value = nmem_strdup(nmem, mergekey_norm);
+            mk->next = 0;
+
+            if (!cached_copy)
+                insert_settings_values(sdb, xdoc, root, service);
+            r = ingest_sub_record(cl, xdoc, root, record_no, nmem, sdb, mk);
+        }
     }
-    session_enter(se, "ingest_record");
-    if (client_get_session(cl) == se)
-        ret = ingest_to_cluster(cl, xdoc, root, record_no, mergekey_norm);
-    session_leave(se, "ingest_record");
-
-    xmlFreeDoc(xdoc);
-    return ret;
+    else
+    {
+        session_log(se, YLOG_WARN, "Bad pz root element: %s",
+                    (const char *) root->name);
+        r = -1;
+    }
+    return r;
 }
 
+
 //    struct conf_metadata *ser_md = &service->metadata[md_field_id];
 //    struct record_metadata *rec_md = record->metadata[md_field_id];
-static int match_metadata_local(struct conf_metadata *ser_md,
+static int match_metadata_local(struct conf_service *service,
+                                struct conf_metadata *ser_md,
                                 struct record_metadata *rec_md0,
                                 char **values, int num_v)
 {
     int i;
     struct record_metadata *rec_md = rec_md0;
+    WRBUF val_wr = 0;
+    WRBUF text_wr = wrbuf_alloc();
     for (i = 0; i < num_v; )
     {
         if (rec_md)
@@ -1707,21 +2006,29 @@ static int match_metadata_local(struct conf_metadata *ser_md,
             }
             else
             {
-                yaz_log(YLOG_DEBUG, "cmp: '%s' '%s'", rec_md->data.text.disp, values[i]);
-                if (!strcmp(rec_md->data.text.disp, values[i]))
+                if (!val_wr)
                 {
-                    // Value equals, should not be filtered.
-                    break;
+                    val_wr = wrbuf_alloc();
+                    mergekey_norm_wr(service->charsets, val_wr, values[i]);
                 }
+                wrbuf_rewind(text_wr);
+                mergekey_norm_wr(service->charsets, text_wr,
+                                 rec_md->data.text.disp);
+                if (!strcmp(wrbuf_cstr(val_wr), wrbuf_cstr(text_wr)))
+                    break;
             }
             rec_md = rec_md->next;
         }
         else
         {
             rec_md = rec_md0;
+            wrbuf_destroy(val_wr);
+            val_wr = 0;
             i++;
         }
     }
+    wrbuf_destroy(val_wr);
+    wrbuf_destroy(text_wr);
     return i < num_v ? 1 : 0;
 }
 
@@ -1757,7 +2064,8 @@ int session_check_cluster_limit(struct session *se, struct record_cluster *rec)
                 nmem_strsplit_escape2(nmem_tmp, "|", value, &values,
                                       &num, 1, '\\', 1);
 
-                if (!match_metadata_local(&service->metadata[md_field_id],
+                if (!match_metadata_local(service,
+                                          &service->metadata[md_field_id],
                                           rec->metadata[md_field_id],
                                           values, num))
                 {
@@ -1799,6 +2107,7 @@ static int check_limit_local(struct client *cl,
                  md_field_id++)
             {
                 if (match_metadata_local(
+                        service,
                         &service->metadata[md_field_id],
                         record->metadata[md_field_id],
                         values, num_v))
@@ -1816,6 +2125,7 @@ static int check_limit_local(struct client *cl,
                 break;
             }
             if (!match_metadata_local(
+                    service,
                     &service->metadata[md_field_id],
                     record->metadata[md_field_id],
                     values, num_v))
@@ -1829,20 +2139,23 @@ static int check_limit_local(struct client *cl,
 }
 
 static int ingest_to_cluster(struct client *cl,
+                             WRBUF wrbuf_disp,
+                             WRBUF wrbuf_norm,
                              xmlDoc *xdoc,
                              xmlNode *root,
                              int record_no,
-                             const char *mergekey_norm)
+                             struct record_metadata_attr *merge_keys)
 {
     xmlNode *n;
-    xmlChar *type = 0;
-    xmlChar *value = 0;
     struct session *se = client_get_session(cl);
     struct conf_service *service = se->service;
     int term_factor = 1;
     struct record_cluster *cluster;
     struct record_metadata **metadata0;
     struct session_database *sdb = client_get_database(cl);
+    NMEM ingest_nmem = 0;
+    char **rank_values = 0;
+    int rank_num = 0;
     struct record *record = record_create(se->nmem,
                                           service->num_metadata,
                                           service->num_sortkeys, cl,
@@ -1850,12 +2163,6 @@ static int ingest_to_cluster(struct client *cl,
 
     for (n = root->children; n; n = n->next)
     {
-        if (type)
-            xmlFree(type);
-        if (value)
-            xmlFree(value);
-        type = value = 0;
-
         if (n->type != XML_ELEMENT_NODE)
             continue;
         if (!strcmp((const char *) n->name, "metadata"))
@@ -1864,20 +2171,12 @@ static int ingest_to_cluster(struct client *cl,
             struct record_metadata **wheretoput = 0;
             struct record_metadata *rec_md = 0;
             int md_field_id = -1;
+            xmlChar *value0;
+            const char *type = yaz_xml_get_prop(n, "type");
 
-            type = xmlGetProp(n, (xmlChar *) "type");
-            value = xmlNodeListGetString(xdoc, n->children, 1);
             if (!type)
                 continue;
-            if (!value || !*value)
-            {
-                xmlChar *empty = xmlGetProp(n, (xmlChar *) "empty");
-                if (!empty)
-                    continue;
-                if (value)
-                    xmlFree(value);
-                value = empty;
-            }
+
             md_field_id
                 = conf_service_metadata_field_id(service, (const char *) type);
             if (md_field_id < 0)
@@ -1891,17 +2190,45 @@ static int ingest_to_cluster(struct client *cl,
                 continue;
             }
 
+            wrbuf_rewind(wrbuf_disp);
+            value0 = xmlNodeListGetString(xdoc, n->children, 1);
+            if (!value0 || !*value0)
+            {
+                const char *empty = yaz_xml_get_prop(n, "empty");
+                if (value0)
+                    xmlFree(value0);
+                if (!empty)
+                    continue;
+                wrbuf_puts(wrbuf_disp, (const char *) empty);
+            }
+            else
+            {
+                wrbuf_puts(wrbuf_disp, (const char *) value0);
+                xmlFree(value0);
+            }
             ser_md = &service->metadata[md_field_id];
 
             // non-merged metadata
-            rec_md = record_metadata_init(se->nmem, (const char *) value,
+            rec_md = record_metadata_init(se->nmem, wrbuf_cstr(wrbuf_disp), 0,
                                           ser_md->type, n->properties);
             if (!rec_md)
             {
                 session_log(se, YLOG_WARN, "bad metadata data '%s' "
-                            "for element '%s'", value, type);
+                            "for element '%s'", wrbuf_cstr(wrbuf_disp), type);
                 continue;
             }
+
+            if (ser_md->type == Metadata_type_generic)
+            {
+                WRBUF w = wrbuf_alloc();
+                if (relevance_snippet(se->relevance,
+                                      wrbuf_cstr(wrbuf_disp), ser_md->name, w))
+                    rec_md->data.text.snippet = nmem_strdup(se->nmem,
+                                                            wrbuf_cstr(w));
+                wrbuf_destroy(w);
+            }
+
+
             wheretoput = &record->metadata[md_field_id];
             while (*wheretoput)
                 wheretoput = &(*wheretoput)->next;
@@ -1911,18 +2238,14 @@ static int ingest_to_cluster(struct client *cl,
 
     if (check_limit_local(cl, record, record_no))
     {
-        session_log(se, YLOG_LOG, "Facet filtered out record no %d from %s",
-                    record_no, sdb->database->id);
-        if (type)
-            xmlFree(type);
-        if (value)
-            xmlFree(value);
         return -2;
     }
-    cluster = reclist_insert(se->reclist, service, record,
-                             mergekey_norm, &se->total_merged);
+    cluster = reclist_insert(se->reclist, se->relevance, service, record,
+                             merge_keys, &se->total_merged);
     if (!cluster)
+    {
         return 0; // complete match with existing record
+    }
 
     {
         const char *use_term_factor_str =
@@ -1942,24 +2265,22 @@ static int ingest_to_cluster(struct client *cl,
         session_log(se, YLOG_LOG, "Cluster id %s from %s (#%d)", cluster->recid,
                     sdb->database->id, record_no);
 
-
-    relevance_newrec(se->relevance, cluster);
-
     // original metadata, to check if first existence of a field
     metadata0 = xmalloc(sizeof(*metadata0) * service->num_metadata);
     memcpy(metadata0, cluster->metadata,
            sizeof(*metadata0) * service->num_metadata);
 
+    ingest_nmem = nmem_create();
+    if (se->rank)
+    {
+        yaz_log(YLOG_LOG, "local in sort : %s", se->rank);
+        nmem_strsplit_escape2(ingest_nmem, ",", se->rank, &rank_values,
+                              &rank_num, 1, '\\', 1);
+    }
+
     // now parsing XML record and adding data to cluster or record metadata
     for (n = root->children; n; n = n->next)
     {
-        pp2_charset_token_t prt;
-        if (type)
-            xmlFree(type);
-        if (value)
-            xmlFree(value);
-        type = value = 0;
-
         if (n->type != XML_ELEMENT_NODE)
             continue;
         if (!strcmp((const char *) n->name, "metadata"))
@@ -1970,13 +2291,13 @@ static int ingest_to_cluster(struct client *cl,
             struct record_metadata *rec_md = 0;
             int md_field_id = -1;
             int sk_field_id = -1;
-            const char *rank;
-            xmlChar *xml_rank;
+            const char *rank = 0;
+            const char *xml_rank = 0;
+            const char *type = 0;
+            xmlChar *value0;
 
-            type = xmlGetProp(n, (xmlChar *) "type");
-            value = xmlNodeListGetString(xdoc, n->children, 1);
-
-            if (!type || !value || !*value)
+            type = yaz_xml_get_prop(n, "type");
+            if (!type)
                 continue;
 
             md_field_id
@@ -1992,17 +2313,64 @@ static int ingest_to_cluster(struct client *cl,
                 ser_sk = &service->sortkeys[sk_field_id];
             }
 
-            // merged metadata
-            rec_md = record_metadata_init(se->nmem, (const char *) value,
-                                          ser_md->type, 0);
+            wrbuf_rewind(wrbuf_disp);
+            wrbuf_rewind(wrbuf_norm);
 
-            // see if the field was not in cluster already (from beginning)
+            value0 = xmlNodeListGetString(xdoc, n->children, 1);
+            if (!value0 || !*value0)
+            {
+                if (value0)
+                    xmlFree(value0);
+                continue;
+            }
+
+            if (ser_md->icurule)
+            {
+                run_icu(se, ser_md->icurule, (const char *) value0,
+                        wrbuf_norm, wrbuf_disp);
+                yaz_log(YLOG_LOG, "run_icu input=%s norm=%s disp=%s",
+                        (const char *) value0,
+                        wrbuf_cstr(wrbuf_norm), wrbuf_cstr(wrbuf_disp));
+                rec_md = record_metadata_init(se->nmem, wrbuf_cstr(wrbuf_disp),
+                                              wrbuf_cstr(wrbuf_norm),
+                                              ser_md->type, 0);
+            }
+            else
+            {
+                wrbuf_puts(wrbuf_disp, (const char *) value0);
+                rec_md = record_metadata_init(se->nmem, wrbuf_cstr(wrbuf_disp),
+                                              0,
+                                              ser_md->type, 0);
+            }
 
+            xmlFree(value0);
+
+            // see if the field was not in cluster already (from beginning)
             if (!rec_md)
                 continue;
 
-            xml_rank = xmlGetProp(n, (xmlChar *) "rank");
-            rank = xml_rank ? (const char *) xml_rank : ser_md->rank;
+            if (rank_num)
+            {
+                int i;
+                for (i = 0; i < rank_num; i++)
+                {
+                    const char *val = rank_values[i];
+                    const char *cp = strchr(val, '=');
+                    if (!cp)
+                        continue;
+                    if ((cp - val) == strlen((const char *) type)
+                        && !memcmp(val, type, cp - val))
+                    {
+                        rank = cp + 1;
+                        break;
+                    }
+                }
+            }
+            else
+            {
+                xml_rank = yaz_xml_get_prop(n, "rank");
+                rank = xml_rank ? (const char *) xml_rank : ser_md->rank;
+            }
 
             wheretoput = &cluster->metadata[md_field_id];
 
@@ -2019,8 +2387,8 @@ static int ingest_to_cluster(struct client *cl,
             {
                 while (*wheretoput)
                 {
-                    if (!strcmp((const char *) (*wheretoput)->data.text.disp,
-                                rec_md->data.text.disp))
+                    if (!strcmp((const char *) (*wheretoput)->data.text.norm,
+                                rec_md->data.text.norm))
                         break;
                     wheretoput = &(*wheretoput)->next;
                 }
@@ -2030,15 +2398,16 @@ static int ingest_to_cluster(struct client *cl,
             else if (ser_md->merge == Metadata_merge_longest)
             {
                 if (!*wheretoput
-                    || strlen(rec_md->data.text.disp)
-                    > strlen((*wheretoput)->data.text.disp))
+                    || strlen(rec_md->data.text.norm)
+                    > strlen((*wheretoput)->data.text.norm))
                 {
                     *wheretoput = rec_md;
                     if (ser_sk)
                     {
+                        pp2_charset_token_t prt;
                         const char *sort_str = 0;
                         int skip_article =
-                            ser_sk->type == Metadata_sortkey_skiparticle;
+                            ser_sk->type == Metadata_type_skiparticle;
 
                         if (!cluster->sortkeys[sk_field_id])
                             cluster->sortkeys[sk_field_id] =
@@ -2099,9 +2468,9 @@ static int ingest_to_cluster(struct client *cl,
             if (rank)
             {
                 relevance_countwords(se->relevance, cluster,
-                                     (char *) value, rank, ser_md->name);
+                                     wrbuf_cstr(wrbuf_disp),
+                                     rank, ser_md->name);
             }
-
             // construct facets ... unless the client already has reported them
             if (ser_md->termlist && !client_has_facet(cl, (char *) type))
             {
@@ -2110,23 +2479,16 @@ static int ingest_to_cluster(struct client *cl,
                     char year[64];
                     sprintf(year, "%d", rec_md->data.number.max);
 
-                    add_facet(se, (char *) type, year, term_factor);
+                    add_facet(se, (char *) type, year, term_factor, cl);
                     if (rec_md->data.number.max != rec_md->data.number.min)
                     {
                         sprintf(year, "%d", rec_md->data.number.min);
-                        add_facet(se, (char *) type, year, term_factor);
+                        add_facet(se, (char *) type, year, term_factor, cl);
                     }
                 }
                 else
-                    add_facet(se, (char *) type, (char *) value, term_factor);
+                    add_facet(se, type, wrbuf_cstr(wrbuf_disp), term_factor, cl);
             }
-
-            // cleaning up
-            if (xml_rank)
-                xmlFree(xml_rank);
-            xmlFree(type);
-            xmlFree(value);
-            type = value = 0;
         }
         else
         {
@@ -2136,11 +2498,7 @@ static int ingest_to_cluster(struct client *cl,
             se->number_of_warnings_unknown_elements++;
         }
     }
-    if (type)
-        xmlFree(type);
-    if (value)
-        xmlFree(value);
-
+    nmem_destroy(ingest_nmem);
     xfree(metadata0);
     relevance_donerecord(se->relevance, cluster);
     se->total_records++;
@@ -2155,7 +2513,7 @@ void session_log(struct session *s, int level, const char *fmt, ...)
     va_start(ap, fmt);
 
     yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap);
-    yaz_log(level, "Session %u: %s", s ? s->session_id : "-", buf);
+    yaz_log(level, "Session %u: %s", s ? s->session_id : 0, buf);
 
     va_end(ap);
 }