database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-10-31 10:30:33 +03:00
Code Activity

CREATE STATISTICS: improve misleading error message

Browse Source 
The previous change (commit f225473cba) was still not on target,
because it talked about relation kinds, which are not what is being
checked here.  Provide a more accurate message.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CACJufxEZ48toGH0Em_6vdsT57Y3L8pLF=DZCQ_gCii6=C3MeXw@mail.gmail.com
This commit is contained in:
Peter Eisentraut
2025-09-15 11:38:58 +02:00
parent 2670881afd
commit f30c04682c
2 changed files with 7 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/backend/tcop/utility.c
View File

@@ -1884,8 +1884,7 @@ ProcessUtilitySlow(ParseState *pstate,
if (!IsA(rel, RangeVar))
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot create statistics on the specified relation"),
errdetail("CREATE STATISTICS only supports tables, foreign tables and materialized views.")));
errmsg("CREATE STATISTICS only supports relation names in the FROM clause")));
/*
* CREATE STATISTICS will influence future execution plans

18
src/test/regress/expected/stats_ext.out
View File

@@ -56,26 +56,20 @@ CREATE STATISTICS tst (unrecognized) ON x, y FROM ext_stats_test;
ERROR: unrecognized statistics kind "unrecognized"
-- unsupported targets
CREATE STATISTICS tst ON a FROM (VALUES (x)) AS foo;
ERROR: cannot create statistics on the specified relation
DETAIL: CREATE STATISTICS only supports tables, foreign tables and materialized views.
ERROR: CREATE STATISTICS only supports relation names in the FROM clause
CREATE STATISTICS tst ON a FROM foo NATURAL JOIN bar;
ERROR: cannot create statistics on the specified relation
DETAIL: CREATE STATISTICS only supports tables, foreign tables and materialized views.
ERROR: CREATE STATISTICS only supports relation names in the FROM clause
CREATE STATISTICS tst ON a FROM (SELECT * FROM ext_stats_test) AS foo;
ERROR: cannot create statistics on the specified relation
DETAIL: CREATE STATISTICS only supports tables, foreign tables and materialized views.
ERROR: CREATE STATISTICS only supports relation names in the FROM clause
CREATE STATISTICS tst ON a FROM ext_stats_test s TABLESAMPLE system (x);
ERROR: cannot create statistics on the specified relation
DETAIL: CREATE STATISTICS only supports tables, foreign tables and materialized views.
ERROR: CREATE STATISTICS only supports relation names in the FROM clause
CREATE STATISTICS tst ON a FROM XMLTABLE('foo' PASSING 'bar' COLUMNS a text);
ERROR: cannot create statistics on the specified relation
DETAIL: CREATE STATISTICS only supports tables, foreign tables and materialized views.
ERROR: CREATE STATISTICS only supports relation names in the FROM clause
CREATE FUNCTION tftest(int) returns table(a int, b int) as $$
SELECT $1, $1+i FROM generate_series(1,5) g(i);
$$ LANGUAGE sql IMMUTABLE STRICT;
CREATE STATISTICS alt_stat2 ON a FROM tftest(1);
ERROR: cannot create statistics on the specified relation
DETAIL: CREATE STATISTICS only supports tables, foreign tables and materialized views.
ERROR: CREATE STATISTICS only supports relation names in the FROM clause
DROP FUNCTION tftest;
-- incorrect expressions
CREATE STATISTICS tst ON (y) FROM ext_stats_test; -- single column reference