PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ pg_get_nd_stats_by_name()

static ND_STATS* pg_get_nd_stats_by_name ( const Oid  table_oid,
const text *  att_text,
int  mode,
bool  only_parent 
)
static

Pull the stats object from the PgSQL system catalogs.

The debugging functions are taking human input (table names) and columns, so we have to look those up first. In case of parent tables whith INHERITS, when "only_parent" is true this function only searchs for stats in the parent table ignoring any statistic collected from the children.

Definition at line 1011 of file gserialized_estimate.c.

1012 {
1013  const char *att_name = text_to_cstring(att_text);
1014  AttrNumber att_num;
1015 
1016  /* We know the name? Look up the num */
1017  if ( att_text )
1018  {
1019  /* Get the attribute number */
1020  att_num = get_attnum(table_oid, att_name);
1021  if ( ! att_num ) {
1022  elog(ERROR, "attribute \"%s\" does not exist", att_name);
1023  return NULL;
1024  }
1025  }
1026  else
1027  {
1028  elog(ERROR, "attribute name is null");
1029  return NULL;
1030  }
1031 
1032  return pg_get_nd_stats(table_oid, att_num, mode, only_parent);
1033 }
static ND_STATS * pg_get_nd_stats(const Oid table_oid, AttrNumber att_num, int mode, bool only_parent)
Pull the stats object from the PgSQL system catalogs.

References pg_get_nd_stats().

Referenced by _postgis_gserialized_joinsel(), _postgis_gserialized_sel(), _postgis_gserialized_stats(), and gserialized_estimated_extent().

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