mirror of
https://github.com/HypoPG/hypopg
synced 2026-05-24 01:28:51 +00:00
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* hypopg_analyze.c: Implementation of ANALYZE-like command for hypothetical
|
|
* objects
|
|
*
|
|
* This file contains all the internal code to compute and store statistics on
|
|
* hypothetical objects.
|
|
*
|
|
* This program is open source, licensed under the PostgreSQL license.
|
|
* For license terms, see the LICENSE file.
|
|
*
|
|
* Copyright (C) 2015-2018: Julien Rouhaud
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef _HYPOPG_ANALYZE_H_
|
|
#define _HYPOPG_ANALYZE_H_
|
|
|
|
#if PG_VERSION_NUM >= 100000
|
|
|
|
/*--- Structs --- */
|
|
|
|
typedef struct hypoStatsKey
|
|
{
|
|
Oid relid;
|
|
AttrNumber attnum;
|
|
} hypoStatsKey;
|
|
|
|
typedef struct hypoStatsEntry
|
|
{
|
|
hypoStatsKey key;
|
|
HeapTuple statsTuple;
|
|
} hypoStatsEntry;
|
|
|
|
/*--- Variables exported ---*/
|
|
|
|
/* Hash table storing the partition-level statistics */
|
|
extern HTAB *hypoStatsHash;
|
|
#endif /* PG_VERSION_NUM >= 100000 */
|
|
|
|
Selectivity hypo_clauselist_selectivity(PlannerInfo *root, RelOptInfo *rel,
|
|
List *clauses, Oid table_relid, Oid parent_oid);
|
|
|
|
/*--- Functions --- */
|
|
|
|
Datum hypopg_analyze(PG_FUNCTION_ARGS);
|
|
Datum hypopg_statistic(PG_FUNCTION_ARGS);
|
|
#if PG_VERSION_NUM >= 100000
|
|
void hypo_stat_remove(Oid tableid);
|
|
#endif
|
|
|
|
#endif /* _HYPOPG_ANALYZE_H_ */
|