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Improve some error messages with invalid indexes for REINDEX CONCURRENTLY

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An invalid index is skipped when doing REINDEX CONCURRENTLY at table
level, with INDEX_CORRUPTED used as errcode.  This is confusing,
because an invalid index could exist after an interruption.  The errcode
is switched to OBJECT_NOT_IN_PREREQUISITE_STATE instead, as per a
suggestion from Andres Freund.

While on it, the error messages are reworded, and a hint is added,
telling how to rebuild an invalid index in this case.  This has been
suggested by Noah Misch.

Discussion: https://postgr.es/m/20231118230958.4fm3fhk4ypshxopa@awork3.anarazel.de
This commit is contained in:
Michael Paquier
2023-12-07 14:27:54 +09:00
parent 0bf62460bb
commit d43bd090a8
2 changed files with 10 additions and 7 deletions
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14
src/backend/commands/indexcmds.c
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@ -3526,10 +3526,11 @@ ReindexRelationConcurrently(const ReindexStmt *stmt, Oid relationOid, const Rein
if (!indexRelation->rd_index->indisvalid)
ereport(WARNING,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot reindex invalid index \"%s.%s\" concurrently, skipping",
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("skipping reindex of invalid index \"%s.%s\"",
get_namespace_name(get_rel_namespace(cellOid)),
get_rel_name(cellOid))));
get_rel_name(cellOid)),
errhint("Use DROP INDEX or REINDEX INDEX.")));
else if (indexRelation->rd_index->indisexclusion)
ereport(WARNING,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
@ -3578,10 +3579,11 @@ ReindexRelationConcurrently(const ReindexStmt *stmt, Oid relationOid, const Rein
if (!indexRelation->rd_index->indisvalid)
ereport(WARNING,
(errcode(ERRCODE_INDEX_CORRUPTED),
errmsg("cannot reindex invalid index \"%s.%s\" concurrently, skipping",
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("skipping reindex of invalid index \"%s.%s\"",
get_namespace_name(get_rel_namespace(cellOid)),
get_rel_name(cellOid))));
get_rel_name(cellOid)),
errhint("Use DROP INDEX or REINDEX INDEX.")));
else
{
ReindexIndexInfo *idx;