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authorTom Lane <tgl@sss.pgh.pa.us>2019-09-08 17:00:29 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2019-09-08 17:00:56 -0400
commit1d87b674828ad3d49b74d0190184d861f183fb30 (patch)
tree0730ed8a97f22517bcec44807502ebc8a481f049 /src/backend/access/heap/heapam.c
parenta5431b7d5f6bcccd1fc69c4e4ae6e4d5f39b83f8 (diff)
Fix RelationIdGetRelation calls that weren't bothering with error checks.
Some of these are quite old, but that doesn't make them not bugs. We'd rather report a failure via elog than SIGSEGV. While at it, uniformly spell the error check as !RelationIsValid(rel) rather than a bare rel == NULL test. The machine code is the same but it seems better to be consistent. Coverity complained about this today, not sure why, because the mistake is in fact old.
Diffstat (limited to 'src/backend/access/heap/heapam.c')
-rw-r--r--src/backend/access/heap/heapam.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c
index f2f7396c006..fe3e83b4894 100644
--- a/src/backend/access/heap/heapam.c
+++ b/src/backend/access/heap/heapam.c
@@ -8002,6 +8002,10 @@ ExtractReplicaIdentity(Relation relation, HeapTuple tp, bool key_changed, bool *
}
idx_rel = RelationIdGetRelation(replidindex);
+
+ if (!RelationIsValid(idx_rel))
+ elog(ERROR, "could not open relation with OID %u", replidindex);
+
idx_desc = RelationGetDescr(idx_rel);
/* deform tuple, so we have fast access to columns */