* 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.
+ * 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.
+ * 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.
+ * 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
#include "postgres.h"
#include "pgstat.h"
+#include "miscadmin.h"
+#include "access/transam.h"
+#include "access/xact.h"
#include "catalog/namespace.h"
#include "commands/vacuum.h"
#include "executor/executor.h"
#include "nodes/parsenodes.h"
#include "storage/bufmgr.h"
#include "utils/builtins.h"
+#include "utils/hsearch.h"
+#include "utils/memutils.h"
#include "utils/lsyscache.h"
#include "utils/guc.h"
#if PG_VERSION_NUM >= 90200
#include "utils/rel.h"
#include "utils/relcache.h"
#include "utils/timestamp.h"
+#if PG_VERSION_NUM >= 90500
+#include "nodes/makefuncs.h"
+#if PG_VERSION_NUM >= 100000
+#include "utils/varlena.h"
+#include "utils/regproc.h"
+#if PG_VERSION_NUM >= 130000
+#include "common/hashfn.h"
+#endif
+#endif
+#endif
#endif
#ifdef PG_MODULE_MAGIC
#endif
static bool online_analyze_enable = true;
+static bool online_analyze_local_tracking = false;
static bool online_analyze_verbose = true;
static double online_analyze_scale_factor = 0.1;
static int online_analyze_threshold = 50;
+static int online_analyze_capacity_threshold = 100000;
static double online_analyze_min_interval = 10000;
+static int online_analyze_lower_limit = 0;
static ExecutorEnd_hook_type oldExecutorEndHook = NULL;
#if PG_VERSION_NUM >= 90200
static ProcessUtility_hook_type oldProcessUtilityHook = NULL;
#endif
-typedef enum
+#if PG_VERSION_NUM >= 120000
+#define VACOPT_NOWAIT VACOPT_SKIP_LOCKED
+#endif
+
+typedef enum CmdKind
+{
+ CK_SELECT = CMD_SELECT,
+ CK_UPDATE = CMD_UPDATE,
+ CK_INSERT = CMD_INSERT,
+ CK_DELETE = CMD_DELETE,
+ CK_TRUNCATE,
+ CK_FASTTRUNCATE,
+ CK_CREATE,
+ CK_ANALYZE,
+ CK_VACUUM
+} CmdKind;
+
+
+typedef enum
{
OATT_ALL = 0x03,
OATT_PERSISTENT = 0x01,
OATT_NONE = 0x00
} OnlineAnalyzeTableType;
-static const struct config_enum_entry online_analyze_table_type_options[] =
+static const struct config_enum_entry online_analyze_table_type_options[] =
{
{"all", OATT_ALL, false},
{"persistent", OATT_PERSISTENT, false},
int nTables;
Oid *tables;
char *tableStr;
+ bool inited;
} TableList;
-static TableList excludeTables = {0, NULL, NULL};
-static TableList includeTables = {0, NULL, NULL};
+static TableList excludeTables = {0, NULL, NULL, false};
+static TableList includeTables = {0, NULL, NULL, false};
+
+typedef struct OnlineAnalyzeTableStat {
+ Oid tableid;
+ bool rereadStat;
+ PgStat_Counter n_tuples;
+ PgStat_Counter mod_since_analyze;
+ TimestampTz last_autoanalyze_time;
+ TimestampTz last_analyze_time;
+} OnlineAnalyzeTableStat;
+
+static MemoryContext onlineAnalyzeMemoryContext = NULL;
+static HTAB *relstats = NULL;
+static void relstatsInit(void);
+
+#if PG_VERSION_NUM < 100000
static int
oid_cmp(const void *a, const void *b)
{
return 0;
return (*(Oid*)a > *(Oid*)b) ? 1 : -1;
}
+#endif
static const char *
tableListAssign(const char * newval, bool doit, TableList *tbl)
{
- char *rawname;
- List *namelist;
- ListCell *l;
- Oid *newOids = NULL;
- int nOids = 0,
+ char *rawname;
+ List *namelist;
+ ListCell *l;
+ Oid *newOids = NULL;
+ int nOids = 0,
i = 0;
rawname = pstrdup(newval);
if (!SplitIdentifierString(rawname, ',', &namelist))
goto cleanup;
+ /*
+ * follow work could be done only in normal processing because of
+ * accsess to system catalog
+ */
+#if PG_VERSION_NUM >= 170000
+ if (MyProcNumber == INVALID_PROC_NUMBER ||
+#else
+ if (MyBackendId == InvalidBackendId ||
+#endif
+ !IsUnderPostmaster ||
+ !IsTransactionState())
+ {
+ includeTables.inited = false;
+ excludeTables.inited = false;
+ return newval;
+ }
+
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)));
+ elog(ERROR,"could not allocate %d bytes",
+ (int)(sizeof(Oid) * (nOids+1)));
}
foreach(l, namelist)
{
- char *curname = (char *) lfirst(l);
- Oid relOid = RangeVarGetRelid(makeRangeVarFromNameList(stringToQualifiedNameList(curname)),
-#if PG_VERSION_NUM >= 90200
- NoLock,
+ char *curname = (char *) lfirst(l);
+#if PG_VERSION_NUM >= 160000
+ Oid relOid = RangeVarGetRelid(makeRangeVarFromNameList(
+ stringToQualifiedNameList(curname, NULL)), NoLock, true);
+#elif PG_VERSION_NUM >= 90200
+ Oid relOid = RangeVarGetRelid(makeRangeVarFromNameList(
+ stringToQualifiedNameList(curname)), NoLock, true);
+#else
+ Oid relOid = RangeVarGetRelid(makeRangeVarFromNameList(
+ stringToQualifiedNameList(curname)), true);
#endif
- true);
if (relOid == InvalidOid)
{
static void
includeTablesAssign(const char *newval, void *extra)
{
- tableListAssign(newval, true, &excludeTables);
+ tableListAssign(newval, true, &includeTables);
}
-#else /* PG_VERSION_NUM < 90100 */
+#else /* PG_VERSION_NUM < 90100 */
static const char *
excludeTablesAssign(const char * newval, bool doit, GucSource source)
#endif
+static void
+lateInit()
+{
+ TableList *tl[] = {&includeTables, &excludeTables};
+ int i;
+
+#if PG_VERSION_NUM >= 170000
+ if (MyProcNumber == INVALID_PROC_NUMBER ||
+#else
+ if (MyBackendId == InvalidBackendId ||
+#endif
+ !IsUnderPostmaster ||
+ !IsTransactionState())
+ return; /* we aren't in connected state */
+
+ for(i=0; i<lengthof(tl); i++)
+ {
+ TableList *tbl = tl[i];
+
+ if (tbl->inited == false)
+ tableListAssign(tbl->tableStr, true, tbl);
+ tbl->inited = true;
+ }
+}
+
static const char*
tableListShow(TableList *tbl)
{
- char *val, *ptr;
- int i,
+ char *val, *ptr;
+ int i,
len;
+ lateInit();
+
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);
+ 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;
return false;
}
+#if PG_VERSION_NUM >= 90500
+static RangeVar*
+makeRangeVarFromOid(Oid relOid)
+{
+ return makeRangeVar(
+ get_namespace_name(get_rel_namespace(relOid)),
+ get_rel_name(relOid),
+ -1
+ );
+
+}
+#endif
+
static void
-makeAnalyze(Oid relOid, CmdType operation, uint32 naffected)
+makeAnalyze(Oid relOid, CmdKind operation, int64 naffected)
{
- PgStat_StatTabEntry *tabentry;
- TimestampTz now = GetCurrentTimestamp();
+ TimestampTz now = GetCurrentTimestamp();
+ Relation rel;
+ OnlineAnalyzeTableType reltype;
+ bool found = false,
+ newTable = false;
+ OnlineAnalyzeTableStat *rstat,
+ dummyrstat;
+ PgStat_StatTabEntry *tabentry = NULL;
if (relOid == InvalidOid)
return;
- tabentry = pgstat_fetch_stat_tabentry(relOid);
+ if (naffected == 0)
+ /* return if there is no changes */
+ return;
+ else if (naffected < 0)
+ /* number if affected rows is unknown */
+ naffected = 0;
-#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
- )
- )
+ rel = RelationIdGetRelation(relOid);
+ if (rel->rd_rel->relkind != RELKIND_RELATION)
{
- VacuumStmt vacstmt;
- TimestampTz startStamp, endStamp;
+ RelationClose(rel);
+ return;
+ }
- /*
- * 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:
+ 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);
+
+ /*
+ * includeTables overwrites excludeTables
+ */
+ switch(online_analyze_table_type)
+ {
+ case OATT_ALL:
+ if (get_rel_relkind(relOid) != RELKIND_RELATION ||
+ (matchOid(&excludeTables, relOid) == true &&
+ matchOid(&includeTables, relOid) == false))
+ return;
+ break;
+ case OATT_NONE:
+ if (get_rel_relkind(relOid) != RELKIND_RELATION ||
+ matchOid(&includeTables, relOid) == false)
+ return;
+ break;
+ case OATT_TEMPORARY:
+ case OATT_PERSISTENT:
+ default:
+ /*
+ * 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;
- case OATT_TEMPORARY:
- case OATT_PERSISTENT:
- default:
- {
- Relation rel;
- OnlineAnalyzeTableType reltype;
+ }
+ break;
+ }
- rel = RelationIdGetRelation(relOid);
- reltype =
-#if PG_VERSION_NUM >= 90100
- (rel->rd_rel->relpersistence == RELPERSISTENCE_TEMP)
+ /*
+ * Do not store data about persistent table in local memory because we
+ * could not track changes of them: they could be changed by another
+ * backends. So always get a pgstat table entry.
+ */
+ if (reltype == OATT_TEMPORARY)
+ rstat = hash_search(relstats, &relOid, HASH_ENTER, &found);
+ else
+ rstat = &dummyrstat; /* found == false for following if */
+
+ if (!found)
+ {
+ MemSet(rstat, 0, sizeof(*rstat));
+ rstat->tableid = relOid;
+ newTable = true;
+ }
+
+ if (operation == CK_VACUUM)
+ {
+ /* force reread because vacuum could change n_tuples */
+ rstat->rereadStat = true;
+ return;
+ }
+ else if (operation == CK_ANALYZE)
+ {
+ /* only analyze */
+ rstat->mod_since_analyze = 0;
+ rstat->last_analyze_time = now;
+ if (newTable)
+ rstat->rereadStat = true;
+ return;
+ }
+
+ Assert(rstat->tableid == relOid);
+
+ if (
+ /* do not reread data if it was a truncation */
+ operation != CK_TRUNCATE && operation != CK_FASTTRUNCATE &&
+ /* read for persistent table and for temp teble if it allowed */
+ (reltype == OATT_PERSISTENT || online_analyze_local_tracking == false) &&
+ /* read only for new table or we know that it's needed */
+ (newTable == true || rstat->rereadStat == true)
+ )
+ {
+ rstat->rereadStat = false;
+
+ tabentry = pgstat_fetch_stat_tabentry(relOid);
+
+ if (tabentry)
+ {
+ rstat->n_tuples =
+#if PG_VERSION_NUM >= 160000
+ tabentry->dead_tuples + tabentry->live_tuples;
#else
- (rel->rd_istemp || rel->rd_islocaltemp)
+ tabentry->n_dead_tuples + tabentry->n_live_tuples;
#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;
+ rstat->mod_since_analyze =
+#if PG_VERSION_NUM >= 160000
+ tabentry->mod_since_analyze;
+#elif PG_VERSION_NUM >= 90000
+ tabentry->changes_since_analyze;
+#else
+ tabentry->n_live_tuples + tabentry->n_dead_tuples -
+ tabentry->last_anl_tuples;
+#endif
+
+ rstat->last_autoanalyze_time =
+#if PG_VERSION_NUM >= 160000
+ tabentry->last_autoanalyze_time;
+#else
+ tabentry->autovac_analyze_timestamp;
+#endif
+
+ rstat->last_analyze_time =
+#if PG_VERSION_NUM >= 160000
+ tabentry->last_analyze_time;
+#else
+ tabentry->analyze_timestamp;
+#endif
}
+ }
+
+ if (newTable ||
+ /* force analyze after truncate, fasttruncate already did analyze */
+ operation == CK_TRUNCATE || (
+ /* do not analyze too often, if both stamps are exceeded the go */
+ TimestampDifferenceExceeds(rstat->last_analyze_time, now, online_analyze_min_interval) &&
+ TimestampDifferenceExceeds(rstat->last_autoanalyze_time, now, online_analyze_min_interval) &&
+ /* do not analyze too small tables */
+ rstat->n_tuples + rstat->mod_since_analyze + naffected > online_analyze_lower_limit &&
+ /* be in sync with relation_needs_vacanalyze */
+ ((double)(rstat->mod_since_analyze + naffected)) >=
+ online_analyze_scale_factor * ((double)rstat->n_tuples) +
+ (double)online_analyze_threshold))
+ {
+#if PG_VERSION_NUM < 90500
+ VacuumStmt vacstmt;
+#else
+ VacuumParams vacstmt;
+#endif
+ TimestampTz startStamp, endStamp;
+ int flags;
+
+#ifdef PGPRO_EE
+ /* ATX is not compatible with online_analyze */
+ if (getNestLevelATX() != 0)
+ return;
+#endif
+
+ memset(&startStamp, 0, sizeof(startStamp)); /* keep compiler quiet */
+
+ memset(&vacstmt, 0, sizeof(vacstmt));
- vacstmt.type = T_VacuumStmt;
vacstmt.freeze_min_age = -1;
vacstmt.freeze_table_age = -1; /* ??? */
+
+#if PG_VERSION_NUM < 90500
+ vacstmt.type = T_VacuumStmt;
vacstmt.relation = NULL;
vacstmt.va_cols = NIL;
-
#if PG_VERSION_NUM >= 90000
vacstmt.options = VACOPT_ANALYZE;
if (online_analyze_verbose)
vacstmt.analyze = true;
vacstmt.verbose = online_analyze_verbose;
#endif
+#else
+ vacstmt.multixact_freeze_min_age = -1;
+ vacstmt.multixact_freeze_table_age = -1;
+ vacstmt.log_min_duration = -1;
+#endif
+
if (online_analyze_verbose)
startStamp = GetCurrentTimestamp();
- analyze_rel(relOid, &vacstmt, GetAccessStrategy(BAS_VACUUM)
-#if (PG_VERSION_NUM < 90004) && (PG_VERSION_NUM >= 90000)
+ flags = VACOPT_ANALYZE | VACOPT_NOWAIT |
+ ((online_analyze_verbose) ? VACOPT_VERBOSE : 0);
+
+#if PG_VERSION_NUM >= 120000
+ vacstmt.options = flags;
+#endif
+ analyze_rel(relOid,
+#if PG_VERSION_NUM < 90500
+ &vacstmt
+#if PG_VERSION_NUM >= 90018
, true
+#endif
+ , GetAccessStrategy(BAS_VACUUM)
+#if (PG_VERSION_NUM >= 90000) && (PG_VERSION_NUM < 90004)
+ , true
+#endif
+#else
+ makeRangeVarFromOid(relOid),
+#if PG_VERSION_NUM < 120000
+ flags,
+#endif
+ &vacstmt, NULL, true, GetAccessStrategy(BAS_VACUUM)
#endif
);
+ /* Make changes visible to subsequent calls */
+ CommandCounterIncrement();
+
if (online_analyze_verbose)
{
long secs;
endStamp = GetCurrentTimestamp();
TimestampDifference(startStamp, endStamp, &secs, µsecs);
- elog(INFO, "analyze \"%s\" took %.02f seconds",
- get_rel_name(relOid), ((double)secs) + ((double)microsecs)/1.0e6);
+ elog(INFO, "analyze \"%s\" took %.02f seconds",
+ get_rel_name(relOid),
+ ((double)secs) + ((double)microsecs)/1.0e6);
}
+ rstat->last_autoanalyze_time = now;
+ rstat->mod_since_analyze = 0;
- if (tabentry == NULL)
+ switch(operation)
{
- /* new table */
- pgstat_clear_snapshot();
+ case CK_CREATE:
+ case CK_INSERT:
+ case CK_UPDATE:
+ rstat->n_tuples += naffected;
+ /* FALLTHROUGH */
+ case CK_DELETE:
+ rstat->rereadStat = (reltype == OATT_PERSISTENT);
+ break;
+ case CK_TRUNCATE:
+ case CK_FASTTRUNCATE:
+ rstat->rereadStat = false;
+ rstat->n_tuples = 0;
+ break;
+ default:
+ break;
}
- else
+
+ /* update last analyze timestamp in local memory of backend */
+ if (tabentry)
{
- /* update last analyze timestamp in local memory of backend */
+#if PG_VERSION_NUM >= 160000
+ tabentry->last_analyze_time = now;
+ tabentry->mod_since_analyze = 0;
+#else
tabentry->analyze_timestamp = now;
+ tabentry->changes_since_analyze = 0;
+#endif
}
+#if 0
+ /* force reload stat for new table */
+ if (newTable)
+ pgstat_clear_snapshot();
+#endif
}
-#if PG_VERSION_NUM >= 90000
- else if (tabentry != NULL)
+ else
{
- tabentry->changes_since_analyze += naffected;
- }
+#if PG_VERSION_NUM >= 90000
+ if (tabentry)
+#if PG_VERSION_NUM >= 160000
+ tabentry->mod_since_analyze += naffected;
+#else
+ tabentry->changes_since_analyze += naffected;
+#endif
#endif
+ switch(operation)
+ {
+ case CK_CREATE:
+ case CK_INSERT:
+ rstat->mod_since_analyze += naffected;
+ rstat->n_tuples += naffected;
+ break;
+ case CK_UPDATE:
+ rstat->mod_since_analyze += 2 * naffected;
+ rstat->n_tuples += naffected;
+ break;
+ case CK_DELETE:
+ rstat->mod_since_analyze += naffected;
+ break;
+ case CK_TRUNCATE:
+ case CK_FASTTRUNCATE:
+ rstat->mod_since_analyze = 0;
+ rstat->n_tuples = 0;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Reset local cache if we are over limit */
+ if (hash_get_num_entries(relstats) > online_analyze_capacity_threshold)
+ relstatsInit();
+}
+
+static Const*
+isFastTruncateCall(QueryDesc *queryDesc)
+{
+ TargetEntry *te;
+ FuncExpr *fe;
+ Const *constval;
+
+ if (!(
+ queryDesc->plannedstmt &&
+ queryDesc->operation == CMD_SELECT &&
+ queryDesc->plannedstmt->planTree &&
+ queryDesc->plannedstmt->planTree->targetlist &&
+ list_length(queryDesc->plannedstmt->planTree->targetlist) == 1
+ ))
+ return NULL;
+
+ te = linitial(queryDesc->plannedstmt->planTree->targetlist);
+
+ if (!IsA(te, TargetEntry))
+ return NULL;
+
+ fe = (FuncExpr*)te->expr;
+
+ if (!(
+ fe && IsA(fe, FuncExpr) &&
+ fe->funcid >= FirstNormalObjectId &&
+ fe->funcretset == false &&
+ fe->funcresulttype == VOIDOID &&
+ fe->funcvariadic == false &&
+ list_length(fe->args) == 1
+ ))
+ return NULL;
+
+ constval = linitial(fe->args);
+
+ if (!(
+ IsA(constval,Const) &&
+ constval->consttype == TEXTOID &&
+ strcmp(get_func_name(fe->funcid), "fasttruncate") == 0
+ ))
+ return NULL;
+
+ return constval;
}
+
extern PGDLLIMPORT void onlineAnalyzeHooker(QueryDesc *queryDesc);
void
-onlineAnalyzeHooker(QueryDesc *queryDesc)
+onlineAnalyzeHooker(QueryDesc *queryDesc)
{
- uint32 naffected = 0;
+ int64 naffected = -1;
+ Const *constval;
if (queryDesc->estate)
- naffected = queryDesc->estate->es_processed;
+ naffected = queryDesc->estate->es_processed;
+
+ lateInit();
+
+#if PG_VERSION_NUM >= 90200
+ if (online_analyze_enable &&
+ (constval = isFastTruncateCall(queryDesc)) != NULL)
+ {
+ Datum tblnamed = constval->constvalue;
+ char *tblname = text_to_cstring(DatumGetTextP(tblnamed));
+#if PG_VERSION_NUM >= 160000
+ RangeVar *tblvar =
+ makeRangeVarFromNameList(stringToQualifiedNameList(tblname, NULL));
+#else
+ RangeVar *tblvar =
+ makeRangeVarFromNameList(stringToQualifiedNameList(tblname));
+#endif
+
+ makeAnalyze(RangeVarGetRelid(tblvar,
+ NoLock,
+ false),
+ CK_FASTTRUNCATE, -1);
+ }
+#endif
if (online_analyze_enable && queryDesc->plannedstmt &&
- (queryDesc->operation == CMD_INSERT ||
+ (queryDesc->operation == CMD_INSERT ||
queryDesc->operation == CMD_UPDATE ||
queryDesc->operation == CMD_DELETE
#if PG_VERSION_NUM < 90200
- || (queryDesc->operation == CMD_SELECT && queryDesc->plannedstmt->intoClause)
+ || (queryDesc->operation == CMD_SELECT &&
+ queryDesc->plannedstmt->intoClause)
#endif
))
{
makeAnalyze(relOid, queryDesc->operation, naffected);
}
- else
+ else
#endif
if (queryDesc->plannedstmt->resultRelations &&
queryDesc->plannedstmt->rtable)
foreach(l, queryDesc->plannedstmt->resultRelations)
{
- int n = lfirst_int(l);
+ 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);
+ makeAnalyze(rte->relid, (CmdKind)queryDesc->operation, naffected);
}
}
}
standard_ExecutorEnd(queryDesc);
}
+static List *toremove = NIL;
+
+/*
+ * removeTable called on transaction end, see call RegisterXactCallback() below
+ */
+static void
+removeTable(XactEvent event, void *arg)
+{
+ ListCell *cell;
+
+ switch(event)
+ {
+ case XACT_EVENT_COMMIT:
+ break;
+ case XACT_EVENT_ABORT:
+ toremove = NIL;
+ default:
+ return;
+ }
+
+ foreach(cell, toremove)
+ {
+ Oid relOid = lfirst_oid(cell);
+
+ hash_search(relstats, &relOid, HASH_REMOVE, NULL);
+ }
+
+ toremove = NIL;
+}
+
+#if PG_VERSION_NUM >= 120000
+static int
+parse_vacuum_opt(VacuumStmt *vacstmt)
+{
+ int options = vacstmt->is_vacuumcmd ? VACOPT_VACUUM : VACOPT_ANALYZE;
+ ListCell *lc;
+
+ foreach(lc, vacstmt->options)
+ {
+ DefElem *opt = (DefElem *) lfirst(lc);
+
+ /* Parse common options for VACUUM and ANALYZE */
+ if (strcmp(opt->defname, "verbose") == 0)
+ options |= VACOPT_VERBOSE;
+ else if (strcmp(opt->defname, "skip_locked") == 0)
+ options |= VACOPT_SKIP_LOCKED;
+ else if (strcmp(opt->defname, "analyze") == 0)
+ options |= VACOPT_ANALYZE;
+ else if (strcmp(opt->defname, "freeze") == 0)
+ options |= VACOPT_FREEZE;
+ else if (strcmp(opt->defname, "full") == 0)
+ options |= VACOPT_FULL;
+ else if (strcmp(opt->defname, "disable_page_skipping") == 0)
+ options |= VACOPT_DISABLE_PAGE_SKIPPING;
+ }
+
+ return options;
+}
+#endif
+
+
#if PG_VERSION_NUM >= 90200
static void
-onlineAnalyzeHookerUtility(Node *parsetree, const char *queryString,
+onlineAnalyzeHookerUtility(
+#if PG_VERSION_NUM >= 100000
+ PlannedStmt *pstmt,
+#else
+ Node *parsetree,
+#endif
+ const char *queryString,
+#if PG_VERSION_NUM >= 140000
+ bool readOnlyTree,
+#endif
+#if PG_VERSION_NUM >= 90300
+ ProcessUtilityContext context, ParamListInfo params,
+#if PG_VERSION_NUM >= 100000
+ QueryEnvironment *queryEnv,
+#endif
+#else
ParamListInfo params, bool isTopLevel,
- DestReceiver *dest, char *completionTag) {
- RangeVar *tblname = NULL;
+#endif
+ DestReceiver *dest,
+#if PG_VERSION_NUM >= 130000
+ QueryCompletion *completionTag
+#else
+ char *completionTag
+#endif
+) {
+ List *tblnames = NIL;
+ CmdKind op = CK_INSERT;
+#if PG_VERSION_NUM >= 100000
+ Node *parsetree = NULL;
+
+ if (pstmt->commandType == CMD_UTILITY)
+ parsetree = pstmt->utilityStmt;
+#endif
+
+ lateInit();
+
+ if (parsetree && online_analyze_enable)
+ {
+ if (IsA(parsetree, CreateTableAsStmt) &&
+ ((CreateTableAsStmt*)parsetree)->into)
+ {
+ tblnames =
+ list_make1((RangeVar*)copyObject(((CreateTableAsStmt*)parsetree)->into->rel));
+ op = CK_CREATE;
+ }
+ else if (IsA(parsetree, TruncateStmt))
+ {
+ tblnames = list_copy(((TruncateStmt*)parsetree)->relations);
+ op = CK_TRUNCATE;
+ }
+ else if (IsA(parsetree, DropStmt) &&
+ ((DropStmt*)parsetree)->removeType == OBJECT_TABLE)
+ {
+ ListCell *cell;
+
+ foreach(cell, ((DropStmt*)parsetree)->objects)
+ {
+ List *relname = (List *) lfirst(cell);
+ RangeVar *rel = makeRangeVarFromNameList(relname);
+ Oid relOid = RangeVarGetRelid(rel, NoLock, true);
+
+ if (OidIsValid(relOid))
+ {
+ MemoryContext ctx;
+
+ ctx = MemoryContextSwitchTo(TopTransactionContext);
+ toremove = lappend_oid(toremove, relOid);
+ MemoryContextSwitchTo(ctx);
+ }
+ }
+ }
+ else if (IsA(parsetree, VacuumStmt))
+ {
+ VacuumStmt *vac = (VacuumStmt*)parsetree;
+ int options =
+#if PG_VERSION_NUM >= 120000
+ parse_vacuum_opt(vac)
+#else
+ vac->options
+#endif
+ ;
+
+
+#if PG_VERSION_NUM >= 110000
+ tblnames = vac->rels;
+#else
+ if (vac->relation)
+ tblnames = list_make1(vac->relation);
+#endif
- if (IsA(parsetree, CreateTableAsStmt) && ((CreateTableAsStmt*)parsetree)->into)
- tblname = (RangeVar*)copyObject(((CreateTableAsStmt*)parsetree)->into->rel);
+ if (options & (VACOPT_VACUUM | VACOPT_FULL | VACOPT_FREEZE))
+ {
+ /* optionally with analyze */
+ op = CK_VACUUM;
+
+ /* drop all collected stat */
+ if (tblnames == NIL)
+ relstatsInit();
+ }
+ else if (options & VACOPT_ANALYZE)
+ {
+ op = CK_ANALYZE;
+
+ /* should reset all counters */
+ if (tblnames == NIL)
+ {
+ HASH_SEQ_STATUS hs;
+ OnlineAnalyzeTableStat *rstat;
+ TimestampTz now = GetCurrentTimestamp();
+
+ hash_seq_init(&hs, relstats);
+
+ while((rstat = hash_seq_search(&hs)) != NULL)
+ {
+ rstat->mod_since_analyze = 0;
+ rstat->last_analyze_time = now;
+ }
+ }
+ }
+ else
+ tblnames = NIL;
+ }
+ }
+
+#if PG_VERSION_NUM >= 100000
+#define parsetree pstmt
+#endif
if (oldProcessUtilityHook)
- oldProcessUtilityHook(parsetree, queryString, params, isTopLevel, dest, completionTag);
+ oldProcessUtilityHook(parsetree, queryString,
+#if PG_VERSION_NUM >= 140000
+ readOnlyTree,
+#endif
+#if PG_VERSION_NUM >= 90300
+ context, params,
+#if PG_VERSION_NUM >= 100000
+ queryEnv,
+#endif
+#else
+ params, isTopLevel,
+#endif
+ dest, completionTag);
else
- standard_ProcessUtility(parsetree, queryString, params, isTopLevel, dest, completionTag);
+ standard_ProcessUtility(parsetree, queryString,
+#if PG_VERSION_NUM >= 140000
+ readOnlyTree,
+#endif
+#if PG_VERSION_NUM >= 90300
+ context, params,
+#if PG_VERSION_NUM >= 100000
+ queryEnv,
+#endif
+#else
+ params, isTopLevel,
+#endif
+ dest, completionTag);
+
+#if PG_VERSION_NUM >= 100000
+#undef parsetree
+#endif
+
+ if (tblnames) {
+ ListCell *l;
- if (tblname) {
- Oid tblOid = RangeVarGetRelid(tblname, NoLock, true);
+ foreach(l, tblnames)
+ {
+ RangeVar *tblname =
+#if PG_VERSION_NUM >= 110000
+ (IsA(lfirst(l), VacuumRelation)) ?
+ ((VacuumRelation*)lfirst(l))->relation :
+#endif
+ (RangeVar*)lfirst(l);
+ Oid tblOid;
+
+ Assert(IsA(tblname, RangeVar));
- makeAnalyze(tblOid, CMD_INSERT, 0);
+ tblOid = RangeVarGetRelid(tblname, NoLock, true);
+ makeAnalyze(tblOid, op, -1);
+ }
}
}
#endif
+
+static void
+relstatsInit(void)
+{
+ HASHCTL hash_ctl;
+ int flags = 0;
+
+ MemSet(&hash_ctl, 0, sizeof(hash_ctl));
+
+ hash_ctl.hash = oid_hash;
+ flags |= HASH_FUNCTION;
+
+ if (onlineAnalyzeMemoryContext)
+ {
+ Assert(relstats != NULL);
+ MemoryContextReset(onlineAnalyzeMemoryContext);
+ }
+ else
+ {
+ Assert(relstats == NULL);
+
+#if PG_VERSION_NUM < 90600
+ onlineAnalyzeMemoryContext =
+ AllocSetContextCreate(CacheMemoryContext,
+ "online_analyze storage context",
+ ALLOCSET_DEFAULT_MINSIZE,
+ ALLOCSET_DEFAULT_INITSIZE,
+ ALLOCSET_DEFAULT_MAXSIZE
+ );
+#else
+ onlineAnalyzeMemoryContext =
+ AllocSetContextCreate(CacheMemoryContext,
+ "online_analyze storage context", ALLOCSET_DEFAULT_SIZES);
+#endif
+ }
+
+ hash_ctl.hcxt = onlineAnalyzeMemoryContext;
+ flags |= HASH_CONTEXT;
+
+ hash_ctl.keysize = sizeof(Oid);
+
+ hash_ctl.entrysize = sizeof(OnlineAnalyzeTableStat);
+ flags |= HASH_ELEM;
+
+ relstats = hash_create("online_analyze storage", 1024, &hash_ctl, flags);
+}
+
void _PG_init(void);
void
_PG_init(void)
{
+ relstatsInit();
+
oldExecutorEndHook = ExecutorEnd_hook;
ExecutorEnd_hook = onlineAnalyzeHooker;
NULL
);
+ DefineCustomBoolVariable(
+ "online_analyze.local_tracking",
+ "Per backend tracking",
+ "Per backend tracking for temp tables (do not use system statistic)",
+ &online_analyze_local_tracking,
+#if PG_VERSION_NUM >= 80400
+ online_analyze_local_tracking,
+#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",
NULL
);
- DefineCustomRealVariable(
+ DefineCustomRealVariable(
"online_analyze.scale_factor",
"fraction of table size to start on-line analyze",
"fraction of table size to start on-line analyze",
NULL
);
- DefineCustomIntVariable(
+ DefineCustomIntVariable(
"online_analyze.threshold",
"min number of row updates before on-line analyze",
"min number of row updates before on-line analyze",
NULL
);
- DefineCustomRealVariable(
+ DefineCustomIntVariable(
+ "online_analyze.capacity_threshold",
+ "Max local cache table capacity",
+ "Max local cache table capacity",
+ &online_analyze_capacity_threshold,
+#if PG_VERSION_NUM >= 80400
+ online_analyze_capacity_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_scale_factor,
+ &online_analyze_min_interval,
#if PG_VERSION_NUM >= 80400
online_analyze_min_interval,
#endif
online_analyze_table_type_options,
PGC_USERSET,
#if PG_VERSION_NUM >= 80400
- GUC_NOT_IN_SAMPLE,
+ GUC_NOT_IN_SAMPLE,
#if PG_VERSION_NUM >= 90100
NULL,
#endif
NULL
);
- DefineCustomStringVariable(
+ DefineCustomStringVariable(
"online_analyze.exclude_tables",
"List of tables which will not online analyze",
NULL,
excludeTablesShow
);
- DefineCustomStringVariable(
+ DefineCustomStringVariable(
"online_analyze.include_tables",
"List of tables which will online analyze",
NULL,
#endif
includeTablesShow
);
-}
-void _PG_fini(void);
-void
-_PG_fini(void)
-{
- ExecutorEnd_hook = oldExecutorEndHook;
-#if PG_VERSION_NUM >= 90200
- ProcessUtility_hook = oldProcessUtilityHook;
+ DefineCustomIntVariable(
+ "online_analyze.lower_limit",
+ "min number of rows in table to analyze",
+ "min number of rows in table to analyze",
+ &online_analyze_lower_limit,
+#if PG_VERSION_NUM >= 80400
+ online_analyze_lower_limit,
#endif
+ 0,
+ 0x7fffffff,
+ PGC_USERSET,
+#if PG_VERSION_NUM >= 80400
+ GUC_NOT_IN_SAMPLE,
+#if PG_VERSION_NUM >= 90100
+ NULL,
+#endif
+#endif
+ NULL,
+ NULL
+ );
- if (excludeTables.tables)
- free(excludeTables.tables);
- if (includeTables.tables)
- free(includeTables.tables);
-
- excludeTables.tables = includeTables.tables = NULL;
- excludeTables.nTables = includeTables.nTables = 0;
+ RegisterXactCallback(removeTable, NULL);
}
projects / online_analyze.git / blobdiff