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online_analyze.patch
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File online_analyze.patch of Package postgresql92
diff -urN ../postgresql-9.2.0.orig/contrib/online_analyze/COPYRIGHT ./contrib/online_analyze/COPYRIGHT --- ../postgresql-9.2.0.orig/contrib/online_analyze/COPYRIGHT Thu Jan 01 04:00:00 1970 +++ ./contrib/online_analyze/COPYRIGHT Tue Sep 25 17:13:16 2012 @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2011 Teodor Sigaev <teodor@sigaev.ru> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CONTRIBUTORS ``AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + diff -urN ../postgresql-9.2.0.orig/contrib/online_analyze/Makefile ./contrib/online_analyze/Makefile --- ../postgresql-9.2.0.orig/contrib/online_analyze/Makefile Thu Jan 01 04:00:00 1970 +++ ./contrib/online_analyze/Makefile Tue Sep 25 17:13:16 2012 @@ -0,0 +1,16 @@ +MODULE_big = online_analyze +OBJS = online_analyze.o +#DATA_built = online_analyze.sql +DOCS = README.online_analyze +#REGRESS = online_analyze + +ifdef USE_PGXS +PGXS := $(shell pg_config --pgxs) +include $(PGXS) +else +subdir = contrib/online_analyze +top_builddir = ../.. +include $(top_builddir)/src/Makefile.global +include $(top_srcdir)/contrib/contrib-global.mk +endif + diff -urN ../postgresql-9.2.0.orig/contrib/online_analyze/online_analyze.c ./contrib/online_analyze/online_analyze.c --- ../postgresql-9.2.0.orig/contrib/online_analyze/online_analyze.c Thu Jan 01 04:00:00 1970 +++ ./contrib/online_analyze/online_analyze.c Tue Sep 25 17:13:16 2012 @@ -0,0 +1,703 @@ +/* + * Copyright (c) 2011 Teodor Sigaev <teodor@sigaev.ru> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY CONTRIBUTORS ``AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "postgres.h" + +#include "pgstat.h" +#include "catalog/namespace.h" +#include "commands/vacuum.h" +#include "executor/executor.h" +#include "nodes/nodes.h" +#include "nodes/parsenodes.h" +#include "storage/bufmgr.h" +#include "utils/builtins.h" +#include "utils/lsyscache.h" +#include "utils/guc.h" +#if PG_VERSION_NUM >= 90200 +#include "catalog/pg_class.h" +#include "nodes/primnodes.h" +#include "tcop/utility.h" +#include "utils/rel.h" +#include "utils/relcache.h" +#include "utils/timestamp.h" +#endif + +#ifdef PG_MODULE_MAGIC +PG_MODULE_MAGIC; +#endif + +static bool online_analyze_enable = true; +static bool online_analyze_verbose = true; +static double online_analyze_scale_factor = 0.1; +static int online_analyze_threshold = 50; +static double online_analyze_min_interval = 10000; + +static ExecutorEnd_hook_type oldExecutorEndHook = NULL; +#if PG_VERSION_NUM >= 90200 +static ProcessUtility_hook_type oldProcessUtilityHook = NULL; +#endif + +typedef enum +{ + OATT_ALL = 0x03, + OATT_PERSISTENT = 0x01, + OATT_TEMPORARY = 0x02, + OATT_NONE = 0x00 +} OnlineAnalyzeTableType; + +static const struct config_enum_entry online_analyze_table_type_options[] = +{ + {"all", OATT_ALL, false}, + {"persistent", OATT_PERSISTENT, false}, + {"temporary", OATT_TEMPORARY, false}, + {"none", OATT_NONE, false}, + {NULL, 0, false}, +}; + +static int online_analyze_table_type = (int)OATT_ALL; + +typedef struct TableList { + int nTables; + Oid *tables; + char *tableStr; +} TableList; + +static TableList excludeTables = {0, NULL, NULL}; +static TableList includeTables = {0, NULL, NULL}; + +static int +oid_cmp(const void *a, const void *b) +{ + if (*(Oid*)a == *(Oid*)b) + return 0; + return (*(Oid*)a > *(Oid*)b) ? 1 : -1; +} + +static const char * +tableListAssign(const char * newval, bool doit, TableList *tbl) +{ + char *rawname; + List *namelist; + ListCell *l; + Oid *newOids = NULL; + int nOids = 0, + i = 0; + + rawname = pstrdup(newval); + + if (!SplitIdentifierString(rawname, ',', &namelist)) + goto cleanup; + + if (doit) + { + nOids = list_length(namelist); + newOids = malloc(sizeof(Oid) * (nOids+1)); + if (!newOids) + elog(ERROR,"could not allocate %d bytes", (int)(sizeof(Oid) * (nOids+1))); + } + + foreach(l, namelist) + { + char *curname = (char *) lfirst(l); +#if PG_VERSION_NUM >= 90200 + Oid relOid = RangeVarGetRelid(makeRangeVarFromNameList(stringToQualifiedNameList(curname)), + NoLock, true); +#else + Oid relOid = RangeVarGetRelid(makeRangeVarFromNameList(stringToQualifiedNameList(curname)), + true); +#endif + + if (relOid == InvalidOid) + { +#if PG_VERSION_NUM >= 90100 + if (doit == false) +#endif + elog(WARNING,"'%s' does not exist", curname); + continue; + } + else if ( get_rel_relkind(relOid) != RELKIND_RELATION ) + { +#if PG_VERSION_NUM >= 90100 + if (doit == false) +#endif + elog(WARNING,"'%s' is not an table", curname); + continue; + } + else if (doit) + { + newOids[i++] = relOid; + } + } + + if (doit) + { + tbl->nTables = i; + if (tbl->tables) + free(tbl->tables); + tbl->tables = newOids; + if (tbl->nTables > 1) + qsort(tbl->tables, tbl->nTables, sizeof(tbl->tables[0]), oid_cmp); + } + + pfree(rawname); + list_free(namelist); + + return newval; + +cleanup: + if (newOids) + free(newOids); + pfree(rawname); + list_free(namelist); + return NULL; +} + +#if PG_VERSION_NUM >= 90100 +static bool +excludeTablesCheck(char **newval, void **extra, GucSource source) +{ + char *val; + + val = (char*)tableListAssign(*newval, false, &excludeTables); + + if (val) + { + *newval = val; + return true; + } + + return false; +} + +static void +excludeTablesAssign(const char *newval, void *extra) +{ + tableListAssign(newval, true, &excludeTables); +} + +static bool +includeTablesCheck(char **newval, void **extra, GucSource source) +{ + char *val; + + val = (char*)tableListAssign(*newval, false, &includeTables); + + if (val) + { + *newval = val; + return true; + } + + return false; +} + +static void +includeTablesAssign(const char *newval, void *extra) +{ + tableListAssign(newval, true, &excludeTables); +} + +#else /* PG_VERSION_NUM < 90100 */ + +static const char * +excludeTablesAssign(const char * newval, bool doit, GucSource source) +{ + return tableListAssign(newval, doit, &excludeTables); +} + +static const char * +includeTablesAssign(const char * newval, bool doit, GucSource source) +{ + return tableListAssign(newval, doit, &includeTables); +} + +#endif + +static const char* +tableListShow(TableList *tbl) +{ + char *val, *ptr; + int i, + len; + + len = 1 /* \0 */ + tbl->nTables * (2 * NAMEDATALEN + 2 /* ', ' */ + 1 /* . */); + ptr = val = palloc(len); + *ptr ='\0'; + for(i=0; i<tbl->nTables; i++) + { + char *relname = get_rel_name(tbl->tables[i]); + Oid nspOid = get_rel_namespace(tbl->tables[i]); + char *nspname = get_namespace_name(nspOid); + + if ( relname == NULL || nspOid == InvalidOid || nspname == NULL ) + continue; + + ptr += snprintf(ptr, len - (ptr - val), "%s%s.%s", + (i==0) ? "" : ", ", + nspname, relname); + } + + return val; +} + +static const char* +excludeTablesShow(void) +{ + return tableListShow(&excludeTables); +} + +static const char* +includeTablesShow(void) +{ + return tableListShow(&includeTables); +} + +static bool +matchOid(TableList *tbl, Oid oid) +{ + Oid *StopLow = tbl->tables, + *StopHigh = tbl->tables + tbl->nTables, + *StopMiddle; + + /* Loop invariant: StopLow <= val < StopHigh */ + while (StopLow < StopHigh) + { + StopMiddle = StopLow + ((StopHigh - StopLow) >> 1); + + if (*StopMiddle == oid) + return true; + else if (*StopMiddle < oid) + StopLow = StopMiddle + 1; + else + StopHigh = StopMiddle; + } + + return false; +} + +static void +makeAnalyze(Oid relOid, CmdType operation, uint32 naffected) +{ + PgStat_StatTabEntry *tabentry; + TimestampTz now = GetCurrentTimestamp(); + + if (relOid == InvalidOid) + return; + + if (get_rel_relkind(relOid) != RELKIND_RELATION) + return; + + tabentry = pgstat_fetch_stat_tabentry(relOid); + +#if PG_VERSION_NUM >= 90000 +#define changes_since_analyze(t) ((t)->changes_since_analyze) +#else +#define changes_since_analyze(t) ((t)->n_live_tuples + (t)->n_dead_tuples - (t)->last_anl_tuples) +#endif + + if ( + tabentry == NULL /* a new table */ || + ( + /* do not analyze too often, if both stamps are exceeded the go */ + TimestampDifferenceExceeds(tabentry->analyze_timestamp, now, online_analyze_min_interval) && + TimestampDifferenceExceeds(tabentry->autovac_analyze_timestamp, now, online_analyze_min_interval) && + /* be in sync with relation_needs_vacanalyze */ + ((double)(changes_since_analyze(tabentry) + naffected)) >= + online_analyze_scale_factor * ((double)(tabentry->n_dead_tuples + tabentry->n_live_tuples)) + + (double)online_analyze_threshold + ) + ) + { + VacuumStmt vacstmt; + TimestampTz startStamp, endStamp; + + memset(&startStamp, 0, sizeof(startStamp)); /* keep compiler quiet */ + + /* + * includeTables overwrites excludeTables + */ + switch(online_analyze_table_type) + { + case OATT_ALL: + if (matchOid(&excludeTables, relOid) == true && matchOid(&includeTables, relOid) == false) + return; + break; + case OATT_NONE: + if (matchOid(&includeTables, relOid) == false) + return; + break; + case OATT_TEMPORARY: + case OATT_PERSISTENT: + default: + { + Relation rel; + OnlineAnalyzeTableType reltype; + + rel = RelationIdGetRelation(relOid); + reltype = +#if PG_VERSION_NUM >= 90100 + (rel->rd_rel->relpersistence == RELPERSISTENCE_TEMP) +#else + (rel->rd_istemp || rel->rd_islocaltemp) +#endif + ? OATT_TEMPORARY : OATT_PERSISTENT; + RelationClose(rel); + + /* + * skip analyze if relation's type doesn't not match online_analyze_table_type + */ + if ((online_analyze_table_type & reltype) == 0 || matchOid(&excludeTables, relOid) == true) + { + if (matchOid(&includeTables, relOid) == false) + return; + } + } + break; + } + + vacstmt.type = T_VacuumStmt; + vacstmt.freeze_min_age = -1; + vacstmt.freeze_table_age = -1; /* ??? */ + vacstmt.relation = NULL; + vacstmt.va_cols = NIL; + +#if PG_VERSION_NUM >= 90000 + vacstmt.options = VACOPT_ANALYZE; + if (online_analyze_verbose) + vacstmt.options |= VACOPT_VERBOSE; +#else + vacstmt.vacuum = vacstmt.full = false; + vacstmt.analyze = true; + vacstmt.verbose = online_analyze_verbose; +#endif + + if (online_analyze_verbose) + startStamp = GetCurrentTimestamp(); + + analyze_rel(relOid, &vacstmt, GetAccessStrategy(BAS_VACUUM) +#if (PG_VERSION_NUM < 90004) && (PG_VERSION_NUM >= 90000) + , true +#endif + ); + + if (online_analyze_verbose) + { + long secs; + int microsecs; + + endStamp = GetCurrentTimestamp(); + TimestampDifference(startStamp, endStamp, &secs, µsecs); + elog(INFO, "analyze \"%s\" took %.02f seconds", + get_rel_name(relOid), ((double)secs) + ((double)microsecs)/1.0e6); + } + + + if (tabentry == NULL) + { + /* new table */ + pgstat_clear_snapshot(); + } + else + { + /* update last analyze timestamp in local memory of backend */ + tabentry->analyze_timestamp = now; + } + } +#if PG_VERSION_NUM >= 90000 + else if (tabentry != NULL) + { + tabentry->changes_since_analyze += naffected; + } +#endif +} + +extern PGDLLIMPORT void onlineAnalyzeHooker(QueryDesc *queryDesc); +void +onlineAnalyzeHooker(QueryDesc *queryDesc) +{ + uint32 naffected = 0; + + if (queryDesc->estate) + naffected = queryDesc->estate->es_processed; + + if (online_analyze_enable && queryDesc->plannedstmt && + (queryDesc->operation == CMD_INSERT || + queryDesc->operation == CMD_UPDATE || + queryDesc->operation == CMD_DELETE +#if PG_VERSION_NUM < 90200 + || (queryDesc->operation == CMD_SELECT && queryDesc->plannedstmt->intoClause) +#endif + )) + { +#if PG_VERSION_NUM < 90200 + if (queryDesc->operation == CMD_SELECT) + { + Oid relOid = RangeVarGetRelid(queryDesc->plannedstmt->intoClause->rel, true); + + makeAnalyze(relOid, queryDesc->operation, naffected); + } + else +#endif + if (queryDesc->plannedstmt->resultRelations && + queryDesc->plannedstmt->rtable) + { + ListCell *l; + + foreach(l, queryDesc->plannedstmt->resultRelations) + { + int n = lfirst_int(l); + RangeTblEntry *rte = list_nth(queryDesc->plannedstmt->rtable, n-1); + + if (rte->rtekind == RTE_RELATION) + makeAnalyze(rte->relid, queryDesc->operation, naffected); + } + } + } + + if (oldExecutorEndHook) + oldExecutorEndHook(queryDesc); + else + standard_ExecutorEnd(queryDesc); +} + +#if PG_VERSION_NUM >= 90200 +static void +onlineAnalyzeHookerUtility(Node *parsetree, const char *queryString, + ParamListInfo params, bool isTopLevel, + DestReceiver *dest, char *completionTag) { + RangeVar *tblname = NULL; + + if (IsA(parsetree, CreateTableAsStmt) && ((CreateTableAsStmt*)parsetree)->into) + tblname = (RangeVar*)copyObject(((CreateTableAsStmt*)parsetree)->into->rel); + + if (oldProcessUtilityHook) + oldProcessUtilityHook(parsetree, queryString, params, isTopLevel, dest, completionTag); + else + standard_ProcessUtility(parsetree, queryString, params, isTopLevel, dest, completionTag); + + if (tblname) { + Oid tblOid = RangeVarGetRelid(tblname, NoLock, true); + + makeAnalyze(tblOid, CMD_INSERT, 0); + } +} +#endif + +void _PG_init(void); +void +_PG_init(void) +{ + oldExecutorEndHook = ExecutorEnd_hook; + + ExecutorEnd_hook = onlineAnalyzeHooker; + +#if PG_VERSION_NUM >= 90200 + oldProcessUtilityHook = ProcessUtility_hook; + + ProcessUtility_hook = onlineAnalyzeHookerUtility; +#endif + + + DefineCustomBoolVariable( + "online_analyze.enable", + "Enable on-line analyze", + "Enables analyze of table directly after insert/update/delete/select into", + &online_analyze_enable, +#if PG_VERSION_NUM >= 80400 + online_analyze_enable, +#endif + PGC_USERSET, +#if PG_VERSION_NUM >= 80400 + GUC_NOT_IN_SAMPLE, +#if PG_VERSION_NUM >= 90100 + NULL, +#endif +#endif + NULL, + NULL + ); + + DefineCustomBoolVariable( + "online_analyze.verbose", + "Verbosity of on-line analyze", + "Make ANALYZE VERBOSE after table's changes", + &online_analyze_verbose, +#if PG_VERSION_NUM >= 80400 + online_analyze_verbose, +#endif + PGC_USERSET, +#if PG_VERSION_NUM >= 80400 + GUC_NOT_IN_SAMPLE, +#if PG_VERSION_NUM >= 90100 + NULL, +#endif +#endif + NULL, + NULL + ); + + DefineCustomRealVariable( + "online_analyze.scale_factor", + "fraction of table size to start on-line analyze", + "fraction of table size to start on-line analyze", + &online_analyze_scale_factor, +#if PG_VERSION_NUM >= 80400 + online_analyze_scale_factor, +#endif + 0.0, + 1.0, + PGC_USERSET, +#if PG_VERSION_NUM >= 80400 + GUC_NOT_IN_SAMPLE, +#if PG_VERSION_NUM >= 90100 + NULL, +#endif +#endif + NULL, + NULL + ); + + DefineCustomIntVariable( + "online_analyze.threshold", + "min number of row updates before on-line analyze", + "min number of row updates before on-line analyze", + &online_analyze_threshold, +#if PG_VERSION_NUM >= 80400 + online_analyze_threshold, +#endif + 0, + 0x7fffffff, + PGC_USERSET, +#if PG_VERSION_NUM >= 80400 + GUC_NOT_IN_SAMPLE, +#if PG_VERSION_NUM >= 90100 + NULL, +#endif +#endif + NULL, + NULL + ); + + DefineCustomRealVariable( + "online_analyze.min_interval", + "minimum time interval between analyze call (in milliseconds)", + "minimum time interval between analyze call (in milliseconds)", + &online_analyze_min_interval, +#if PG_VERSION_NUM >= 80400 + online_analyze_min_interval, +#endif + 0.0, + 1e30, + PGC_USERSET, +#if PG_VERSION_NUM >= 80400 + GUC_NOT_IN_SAMPLE, +#if PG_VERSION_NUM >= 90100 + NULL, +#endif +#endif + NULL, + NULL + ); + + DefineCustomEnumVariable( + "online_analyze.table_type", + "Type(s) of table for online analyze: all(default), persistent, temporary, none", + NULL, + &online_analyze_table_type, +#if PG_VERSION_NUM >= 80400 + online_analyze_table_type, +#endif + online_analyze_table_type_options, + PGC_USERSET, +#if PG_VERSION_NUM >= 80400 + GUC_NOT_IN_SAMPLE, +#if PG_VERSION_NUM >= 90100 + NULL, +#endif +#endif + NULL, + NULL + ); + + DefineCustomStringVariable( + "online_analyze.exclude_tables", + "List of tables which will not online analyze", + NULL, + &excludeTables.tableStr, +#if PG_VERSION_NUM >= 80400 + "", +#endif + PGC_USERSET, + 0, +#if PG_VERSION_NUM >= 90100 + excludeTablesCheck, + excludeTablesAssign, +#else + excludeTablesAssign, +#endif + excludeTablesShow + ); + + DefineCustomStringVariable( + "online_analyze.include_tables", + "List of tables which will online analyze", + NULL, + &includeTables.tableStr, +#if PG_VERSION_NUM >= 80400 + "", +#endif + PGC_USERSET, + 0, +#if PG_VERSION_NUM >= 90100 + includeTablesCheck, + includeTablesAssign, +#else + includeTablesAssign, +#endif + includeTablesShow + ); +} + +void _PG_fini(void); +void +_PG_fini(void) +{ + ExecutorEnd_hook = oldExecutorEndHook; +#if PG_VERSION_NUM >= 90200 + ProcessUtility_hook = oldProcessUtilityHook; +#endif + + if (excludeTables.tables) + free(excludeTables.tables); + if (includeTables.tables) + free(includeTables.tables); + + excludeTables.tables = includeTables.tables = NULL; + excludeTables.nTables = includeTables.nTables = 0; +} diff -urN ../postgresql-9.2.0.orig/contrib/online_analyze/README.online_analyze ./contrib/online_analyze/README.online_analyze --- ../postgresql-9.2.0.orig/contrib/online_analyze/README.online_analyze Thu Jan 01 04:00:00 1970 +++ ./contrib/online_analyze/README.online_analyze Tue Sep 25 17:13:16 2012 @@ -0,0 +1,36 @@ +Module makes an analyze call immediately after INSERT/UPDATE/DELETE/SELECT INTO +for affected table(s). + +Supported versionsi of PostgreSQL: 8.4.*, 9.0.*, 9.1.* + +Usage: LOAD 'online_analyze'; + +Custom variables (defaults values are shown): +online_analyze.enable = on + Enables on-line analyze + +online_analyze.verbose = on + Execute ANALYZE VERBOSE + +online_analyze.scale_factor = 0.1 + Fraction of table size to start on-line analyze (similar to + autovacuum_analyze_scale_factor) + +online_analyze.threshold = 50 + Min number of row updates before on-line analyze (similar to + autovacuum_analyze_threshold) + +online_analyze.min_interval = 10000 + Minimum time interval between analyze call per table (in milliseconds) + +online_analyze.table_type = "all" + Type(s) of table for online analyze: all, persistent, temporary, none + +online_analyze.exclude_tables = "" + List of tables which will not online analyze + +online_analyze.include_tables = "" + List of tables which will online analyze + online_analyze.include_tables overwrites online_analyze.exclude_tables. + +Author: Teodor Sigaev <teodor@sigaev.ru>
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