database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-09 22:41:56 +03:00
Code Activity

Add ALTER TABLE ... ALTER COLUMN ... SET STATISTICS DISTINCT

Browse Source 
Robert Haas
This commit is contained in:
Tom Lane
2009-08-02 22:14:53 +00:00
parent 527f0ae3fa
commit 9072592946
17 changed files with 558 additions and 301 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/backend/commands/analyze.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.139 2009/06/11 14:48:55 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/analyze.c,v 1.140 2009/08/02 22:14:52 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -425,6 +425,11 @@ analyze_rel(Oid relid, VacuumStmt *vacstmt,
std_fetch_func,
numrows,
totalrows);
/* If attdistinct is set, override with that value */
if (stats->attr->attdistinct != 0)
stats->stadistinct = stats->attr->attdistinct;
MemoryContextResetAndDeleteChildren(col_context);
}
@ -679,6 +684,9 @@ compute_index_stats(Relation onerel, double totalrows,
ind_fetch_func,
numindexrows,
totalindexrows);
/* If attdistinct is set, override with that value */
if (stats->attr->attdistinct != 0)
stats->stadistinct = stats->attr->attdistinct;
MemoryContextResetAndDeleteChildren(col_context);
}
}