PostGIS  3.0.0dev-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 993 of file gserialized_estimate.c.

References pg_get_nd_stats(), and text_to_cstring().

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

994 {
995  const char *att_name = text_to_cstring(att_text);
996  AttrNumber att_num;
997 
998  /* We know the name? Look up the num */
999  if ( att_text )
1000  {
1001  /* Get the attribute number */
1002  att_num = get_attnum(table_oid, att_name);
1003  if ( ! att_num ) {
1004  elog(ERROR, "attribute \"%s\" does not exist", att_name);
1005  return NULL;
1006  }
1007  }
1008  else
1009  {
1010  elog(ERROR, "attribute name is null");
1011  return NULL;
1012  }
1013 
1014  return pg_get_nd_stats(table_oid, att_num, mode, only_parent);
1015 }
char * text_to_cstring(const text *textptr)
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.
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