pg_statistic_ext_data.h

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/*-------------------------------------------------------------------------
 *
 * pg_statistic_ext_data.h
 *    definition of the "extended statistics data" system catalog
 *    (pg_statistic_ext_data)
 *
 * This catalog stores the statistical data for extended statistics objects.
 *
 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/catalog/pg_statistic_ext_data.h
 *
 * NOTES
 *    The Catalog.pm module reads this file and derives schema
 *    information.
 *
 *-------------------------------------------------------------------------
 */
#ifndef PG_STATISTIC_EXT_DATA_H
#define PG_STATISTIC_EXT_DATA_H
 
#include "catalog/genbki.h"
#include "catalog/pg_statistic_ext_data_d.h"    /* IWYU pragma: export */
 
/* ----------------
 *      pg_statistic_ext_data definition.  cpp turns this into
 *      typedef struct FormData_pg_statistic_ext_data
 * ----------------
 */
CATALOG(pg_statistic_ext_data,3429,StatisticExtDataRelationId)
{
    Oid         stxoid BKI_LOOKUP(pg_statistic_ext);    /* statistics object
                                                         * this data is for */
    bool        stxdinherit;    /* true if inheritance children are included */
 
#ifdef CATALOG_VARLEN           /* variable-length fields start here */
 
    pg_ndistinct stxdndistinct; /* ndistinct coefficients (serialized) */
    pg_dependencies stxddependencies;   /* dependencies (serialized) */
    pg_mcv_list stxdmcv;        /* MCV (serialized) */
    pg_statistic stxdexpr[1];   /* stats for expressions */
 
#endif
 
} FormData_pg_statistic_ext_data;
 
/* ----------------
 *      Form_pg_statistic_ext_data corresponds to a pointer to a tuple with
 *      the format of pg_statistic_ext_data relation.
 * ----------------
 */
typedef FormData_pg_statistic_ext_data *Form_pg_statistic_ext_data;
 
DECLARE_TOAST(pg_statistic_ext_data, 3430, 3431);
 
DECLARE_UNIQUE_INDEX_PKEY(pg_statistic_ext_data_stxoid_inh_index, 3433, StatisticExtDataStxoidInhIndexId, pg_statistic_ext_data, btree(stxoid oid_ops, stxdinherit bool_ops));
 
MAKE_SYSCACHE(STATEXTDATASTXOID, pg_statistic_ext_data_stxoid_inh_index, 4);
 
#endif                          /* PG_STATISTIC_EXT_DATA_H */