database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-15 19:21:59 +03:00
Code Activity

Fix ALTER TABLE...SET STATS error message for included columns

Browse Source 
The existing error message was complaining that the column is not an
expression, which is not correct.  Introduce a suitable wording
variation and a test.

Co-authored-by: Yugo Nagata <nagata@sraoss.co.jp>
Discussion: https://postgr.es/m/20180628182803.e4632d5a.nagata@sraoss.co.jp
Reviewed-by: Álvaro Herrera <alvherre@alvh.no-ip.org>
This commit is contained in:
Alvaro Herrera
2018-07-16 20:00:24 -04:00
parent e353389d24
commit cb9db2ab06
3 changed files with 39 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/test/regress/expected/index_including.out
View File

@ -243,6 +243,20 @@ SELECT indexdef FROM pg_indexes WHERE tablename = 'tbl' ORDER BY indexname;
----------
(0 rows)
DROP TABLE tbl;
/*
* 3.3 Test ALTER TABLE SET STATISTICS
*/
CREATE TABLE tbl (c1 int, c2 int);
CREATE INDEX tbl_idx ON tbl (c1, (c1+0)) INCLUDE (c2);
ALTER INDEX tbl_idx ALTER COLUMN 1 SET STATISTICS 1000;
ERROR: cannot alter statistics on non-expression column "c1" of index "tbl_idx"
HINT: Alter statistics on table column instead.
ALTER INDEX tbl_idx ALTER COLUMN 2 SET STATISTICS 1000;
ALTER INDEX tbl_idx ALTER COLUMN 3 SET STATISTICS 1000;
ERROR: cannot alter statistics on included column "c2" of index "tbl_idx"
ALTER INDEX tbl_idx ALTER COLUMN 4 SET STATISTICS 1000;
ERROR: column number 4 of relation "tbl_idx" does not exist
DROP TABLE tbl;
/*
* 4. CREATE INDEX CONCURRENTLY

10
src/test/regress/sql/index_including.sql
View File

@ -137,6 +137,16 @@ ALTER TABLE tbl DROP COLUMN c1;
SELECT indexdef FROM pg_indexes WHERE tablename = 'tbl' ORDER BY indexname;
DROP TABLE tbl;
/*
* 3.3 Test ALTER TABLE SET STATISTICS
*/
CREATE TABLE tbl (c1 int, c2 int);
CREATE INDEX tbl_idx ON tbl (c1, (c1+0)) INCLUDE (c2);
ALTER INDEX tbl_idx ALTER COLUMN 1 SET STATISTICS 1000;
ALTER INDEX tbl_idx ALTER COLUMN 2 SET STATISTICS 1000;
ALTER INDEX tbl_idx ALTER COLUMN 3 SET STATISTICS 1000;
ALTER INDEX tbl_idx ALTER COLUMN 4 SET STATISTICS 1000;
DROP TABLE tbl;
/*
* 4. CREATE INDEX CONCURRENTLY