diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/access/hash/hashovfl.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/backend/access/hash/hashovfl.c b/src/backend/access/hash/hashovfl.c index 753c8a6a134..33340893291 100644 --- a/src/backend/access/hash/hashovfl.c +++ b/src/backend/access/hash/hashovfl.c @@ -69,11 +69,20 @@ _hash_ovflblkno_to_bitno(HashMetaPage metap, BlockNumber ovflblkno) if (ovflblkno <= (BlockNumber) (1 << i)) break; /* oops */ bitnum = ovflblkno - (1 << i); - if (bitnum <= metap->hashm_spares[i]) + + /* + * bitnum has to be greater than number of overflow page added in + * previous split point. The overflow page at this splitnum (i) if any + * should start from ((2 ^ i) + metap->hashm_spares[i - 1] + 1). + */ + if (bitnum > metap->hashm_spares[i - 1] && + bitnum <= metap->hashm_spares[i]) return bitnum - 1; /* -1 to convert 1-based to 0-based */ } - elog(ERROR, "invalid overflow block number %u", ovflblkno); + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("invalid overflow block number %u", ovflblkno))); return 0; /* keep compiler quiet */ } |