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Improve wording of error message added in commit 714805010.

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Per suggestions from Peter Eisentraut and David Johnston.
Back-patch, like the previous commit.

Discussion: https://postgr.es/m/E1dv9jI-0006oT-Fn@gemulon.postgresql.org
This commit is contained in:
Tom Lane 2017-09-26 15:25:56 -04:00
parent 5ea96efaa0
commit 9a50a93c7b
2 changed files with 3 additions and 3 deletions
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2
src/backend/commands/analyze.c
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@ -396,7 +396,7 @@ do_analyze_rel(Relation onerel, int options, VacuumParams *params,
if (bms_is_member(i, unique_cols))
ereport(ERROR,
(errcode(ERRCODE_DUPLICATE_COLUMN),
errmsg("column \"%s\" of relation \"%s\" is specified twice",
errmsg("column \"%s\" of relation \"%s\" appears more than once",
col, RelationGetRelationName(onerel))));
unique_cols = bms_add_member(unique_cols, i);

4
src/test/regress/expected/vacuum.out
View File

@ -92,7 +92,7 @@ VACUUM (FULL) vacparted;
VACUUM (FREEZE) vacparted;
-- check behavior with duplicate column mentions
VACUUM ANALYZE vacparted(a,b,a);
ERROR: column "a" of relation "vacparted" is specified twice
ERROR: column "a" of relation "vacparted" appears more than once
ANALYZE vacparted(a,b,b);
ERROR: column "b" of relation "vacparted" is specified twice
ERROR: column "b" of relation "vacparted" appears more than once
DROP TABLE vacparted;