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pgstat: introduce PgStat_Kind enum.

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Will be used by following commits to generalize stats infrastructure. Kept
separate to allow commits stand reasonably on their own.

Reviewed-By: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Discussion: https://postgr.es/m/20220404041516.cctrvpadhuriawlq@alap3.anarazel.de
This commit is contained in:
Andres Freund 2022-04-06 17:56:19 -07:00
parent 0d5c387573
commit 997afad89d
2 changed files with 25 additions and 0 deletions
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24
src/include/pgstat.h
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@ -33,6 +33,30 @@
/* Default directory to store temporary statistics data in */
#define PG_STAT_TMP_DIR "pg_stat_tmp"
/* The types of statistics entries */
typedef enum PgStat_Kind
{
/* use 0 for INVALID, to catch zero-initialized data */
PGSTAT_KIND_INVALID = 0,
/* stats for variable-numbered objects */
PGSTAT_KIND_DATABASE, /* database-wide statistics */
PGSTAT_KIND_RELATION, /* per-table statistics */
PGSTAT_KIND_FUNCTION, /* per-function statistics */
PGSTAT_KIND_REPLSLOT, /* per-slot statistics */
PGSTAT_KIND_SUBSCRIPTION, /* per-subscription statistics */
/* stats for fixed-numbered objects */
PGSTAT_KIND_ARCHIVER,
PGSTAT_KIND_BGWRITER,
PGSTAT_KIND_CHECKPOINTER,
PGSTAT_KIND_SLRU,
PGSTAT_KIND_WAL,
} PgStat_Kind;
#define PGSTAT_KIND_FIRST_VALID PGSTAT_KIND_DATABASE
#define PGSTAT_KIND_LAST PGSTAT_KIND_WAL
#define PGSTAT_NUM_KINDS (PGSTAT_KIND_LAST + 1)
/* Values for track_functions GUC variable --- order is significant! */
typedef enum TrackFunctionsLevel

1
src/tools/pgindent/typedefs.list
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@ -1942,6 +1942,7 @@ PgStat_FunctionCallUsage
PgStat_FunctionCounts
PgStat_FunctionEntry
PgStat_GlobalStats
PgStat_Kind
PgStat_Msg
PgStat_MsgAnalyze
PgStat_MsgAnlAncestors