diff options
| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2018-07-16 20:00:24 -0400 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2018-07-16 20:00:39 -0400 |
| commit | cb9db2ab0674381b92559e011738f19e2bd0f6f2 (patch) | |
| tree | 0e60eb9aa096b7b03a908aa022f1e4c4b38b2c2d | |
| parent | e353389d24da48c708f72379f87e9b518baac521 (diff) | |
Fix ALTER TABLE...SET STATS error message for included columns
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>
| -rw-r--r-- | src/backend/commands/tablecmds.c | 23 | ||||
| -rw-r--r-- | src/test/regress/expected/index_including.out | 14 | ||||
| -rw-r--r-- | src/test/regress/sql/index_including.sql | 10 |
3 files changed, 39 insertions, 8 deletions
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c index 22e81e712d8..4d3fc3098c9 100644 --- a/src/backend/commands/tablecmds.c +++ b/src/backend/commands/tablecmds.c @@ -6504,14 +6504,21 @@ ATExecSetStatistics(Relation rel, const char *colName, int16 colNum, Node *newVa errmsg("cannot alter system column \"%s\"", colName))); - if ((rel->rd_rel->relkind == RELKIND_INDEX || - rel->rd_rel->relkind == RELKIND_PARTITIONED_INDEX) && - rel->rd_index->indkey.values[attnum - 1] != 0) - ereport(ERROR, - (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("cannot alter statistics on non-expression column \"%s\" of index \"%s\"", - NameStr(attrtuple->attname), RelationGetRelationName(rel)), - errhint("Alter statistics on table column instead."))); + if (rel->rd_rel->relkind == RELKIND_INDEX || + rel->rd_rel->relkind == RELKIND_PARTITIONED_INDEX) + { + if (attnum > rel->rd_index->indnkeyatts) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot alter statistics on included column \"%s\" of index \"%s\"", + NameStr(attrtuple->attname), RelationGetRelationName(rel)))); + else if (rel->rd_index->indkey.values[attnum - 1] != 0) + ereport(ERROR, + (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot alter statistics on non-expression column \"%s\" of index \"%s\"", + NameStr(attrtuple->attname), RelationGetRelationName(rel)), + errhint("Alter statistics on table column instead."))); + } attrtuple->attstattarget = newtarget; diff --git a/src/test/regress/expected/index_including.out b/src/test/regress/expected/index_including.out index b7d1812ec5c..ee976994a44 100644 --- a/src/test/regress/expected/index_including.out +++ b/src/test/regress/expected/index_including.out @@ -245,6 +245,20 @@ 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; +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 */ CREATE TABLE tbl (c1 int,c2 int, c3 int, c4 box, UNIQUE(c1, c2) INCLUDE(c3,c4)); diff --git a/src/test/regress/sql/index_including.sql b/src/test/regress/sql/index_including.sql index b71bcaf9360..b59adeb845e 100644 --- a/src/test/regress/sql/index_including.sql +++ b/src/test/regress/sql/index_including.sql @@ -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 |