pgstat_kind.c File Reference

#include "postgres.h"
#include "fmgr.h"
#include "funcapi.h"
#include "utils/builtins.h"
#include "utils/fmgrprotos.h"
#include "utils/pgstat_internal.h"
#include "utils/pgstat_kind.h"
#include "utils/tuplestore.h"

Include dependency graph for pgstat_kind.c:

Go to the source code of this file.

Macros
#define	PG_STAT_KIND_INFO_COLS   7

Functions
Datum	pg_stat_get_kind_info (PG_FUNCTION_ARGS)

Macro Definition Documentation

PG_STAT_KIND_INFO_COLS

#define PG_STAT_KIND_INFO_COLS   7

Function Documentation

pg_stat_get_kind_info()

Datum pg_stat_get_kind_info

(

PG_FUNCTION_ARGS

)

Definition at line 32 of file pgstat_kind.c.

{
#define PG_STAT_KIND_INFO_COLS  7
    ReturnSetInfo *rsinfo;
 
    InitMaterializedSRF(fcinfo, 0);
    rsinfo = (ReturnSetInfo *) fcinfo->resultinfo;
 
    for (int kind = PGSTAT_KIND_MIN; kind <= PGSTAT_KIND_MAX; kind++)
    {
        Datum       values[PG_STAT_KIND_INFO_COLS] = {0};
        bool        nulls[PG_STAT_KIND_INFO_COLS] = {0};
        const PgStat_KindInfo *info;
 
        info = pgstat_get_kind_info(kind);
        if (info == NULL)
            continue;
 
        values[0] = Int32GetDatum(kind);
        values[1] = CStringGetTextDatum(info->name);
 
        values[2] = BoolGetDatum(pgstat_is_kind_builtin(kind));
        values[3] = BoolGetDatum(info->fixed_amount);
        values[4] = BoolGetDatum(info->accessed_across_databases);
        values[5] = BoolGetDatum(info->write_to_file);
 
        /*
         * When track_entry_count is disabled, use NULL.  Fixed-sized stats
         * kinds report NULL here.
         */
        if (info->track_entry_count)
            values[6] = Int64GetDatum(pgstat_get_entry_count(kind));
        else
            nulls[6] = true;
 
        tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls);
    }
 
    return (Datum) 0;
#undef PG_STAT_KIND_INFO_COLS
}

References PgStat_KindInfo::accessed_across_databases, BoolGetDatum(), CStringGetTextDatum, fb(), PgStat_KindInfo::fixed_amount, InitMaterializedSRF(), Int32GetDatum(), Int64GetDatum(), PgStat_KindInfo::name, PG_STAT_KIND_INFO_COLS, pgstat_get_entry_count(), pgstat_get_kind_info(), pgstat_is_kind_builtin(), PGSTAT_KIND_MAX, PGSTAT_KIND_MIN, PgStat_KindInfo::track_entry_count, tuplestore_putvalues(), values, and PgStat_KindInfo::write_to_file.