diff options
Diffstat (limited to 'src/backend/utils/sort/tuplesort.c')
| -rw-r--r-- | src/backend/utils/sort/tuplesort.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/backend/utils/sort/tuplesort.c b/src/backend/utils/sort/tuplesort.c index b6e302fc9ca..b8494a2f86f 100644 --- a/src/backend/utils/sort/tuplesort.c +++ b/src/backend/utils/sort/tuplesort.c @@ -3508,6 +3508,7 @@ comparetup_index_btree(const SortTuple *a, const SortTuple *b, { Datum values[INDEX_MAX_KEYS]; bool isnull[INDEX_MAX_KEYS]; + char *key_desc; /* * Some rather brain-dead implementations of qsort (such as the one in @@ -3518,13 +3519,15 @@ comparetup_index_btree(const SortTuple *a, const SortTuple *b, Assert(tuple1 != tuple2); index_deform_tuple(tuple1, tupDes, values, isnull); + + key_desc = BuildIndexValueDescription(state->indexRel, values, isnull); + ereport(ERROR, (errcode(ERRCODE_UNIQUE_VIOLATION), errmsg("could not create unique index \"%s\"", RelationGetRelationName(state->indexRel)), - errdetail("Key %s is duplicated.", - BuildIndexValueDescription(state->indexRel, - values, isnull)), + key_desc ? errdetail("Key %s is duplicated.", key_desc) : + errdetail("Duplicate keys exist."), errtableconstraint(state->heapRel, RelationGetRelationName(state->indexRel)))); } |