diff options
Diffstat (limited to 'src/backend/access/nbtree/nbtsearch.c')
| -rw-r--r-- | src/backend/access/nbtree/nbtsearch.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/backend/access/nbtree/nbtsearch.c b/src/backend/access/nbtree/nbtsearch.c index 4de452357c1..8b2aad4d2b2 100644 --- a/src/backend/access/nbtree/nbtsearch.c +++ b/src/backend/access/nbtree/nbtsearch.c @@ -530,7 +530,24 @@ _bt_binsrch_insert(Relation rel, BTInsertState insertstate) * infrequently. */ if (unlikely(result == 0 && key->scantid != NULL)) + { + /* + * postingoff should never be set more than once per leaf page + * binary search. That would mean that there are duplicate table + * TIDs in the index, which is never okay. Check for that here. + */ + if (insertstate->postingoff != 0) + ereport(ERROR, + (errcode(ERRCODE_INDEX_CORRUPTED), + errmsg_internal("table tid from new index tuple (%u,%u) cannot find insert offset between offsets %u and %u of block %u in index \"%s\"", + ItemPointerGetBlockNumber(key->scantid), + ItemPointerGetOffsetNumber(key->scantid), + low, stricthigh, + BufferGetBlockNumber(insertstate->buf), + RelationGetRelationName(rel)))); + insertstate->postingoff = _bt_binsrch_posting(key, page, mid); + } } /* |