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| author | Michael Widenius <monty@askmonty.org> | 2012-09-10 16:46:33 +0300 |
|---|---|---|
| committer | Michael Widenius <monty@askmonty.org> | 2012-09-10 16:46:33 +0300 |
| commit | 1539f91267a8ca11b137444a4cb87c61febfb05c (patch) | |
| tree | ac292658ad82cfd53891f8fdd0f7a2f209a62c4f /storage/heap | |
| parent | 7fbd2de8b8bba2ed27bebbdba99ed4f345b83fa5 (diff) | |
| download | mariadb-git-1539f91267a8ca11b137444a4cb87c61febfb05c.tar.gz | |
Fixed Bug#1002564: Wrong result for a lookup query from a heap table
mysql-test/suite/heap/heap_hash.result:
Added test case
mysql-test/suite/heap/heap_hash.test:
Added test case
storage/heap/hp_hash.c:
Limit key data length to max key length
Diffstat (limited to 'storage/heap')
| -rw-r--r-- | storage/heap/hp_hash.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/storage/heap/hp_hash.c b/storage/heap/hp_hash.c index d44726ba762..2abed55459c 100644 --- a/storage/heap/hp_hash.c +++ b/storage/heap/hp_hash.c @@ -348,6 +348,8 @@ ulong hp_rec_hashnr(register HP_KEYDEF *keydef, register const uchar *rec) seg->length/cs->mbmaxlen); set_if_smaller(length, char_length); } + else + set_if_smaller(length, seg->length); cs->coll->hash_sort(cs, pos+pack_length, length, &nr, &nr2); } else @@ -593,6 +595,11 @@ int hp_rec_key_cmp(HP_KEYDEF *keydef, const uchar *rec1, const uchar *rec2, char_length2= my_charpos(cs, pos2, pos2 + char_length2, char_length); set_if_smaller(char_length2, safe_length2); } + else + { + set_if_smaller(char_length1, seg->length); + set_if_smaller(char_length2, seg->length); + } if (cs->coll->strnncollsp(seg->charset, pos1, char_length1, @@ -689,6 +696,8 @@ int hp_key_cmp(HP_KEYDEF *keydef, const uchar *rec, const uchar *key) char_length2= my_charpos(cs, pos, pos + char_length_rec, char_length2); set_if_smaller(char_length_rec, char_length2); } + else + set_if_smaller(char_length_rec, seg->length); if (cs->coll->strnncollsp(seg->charset, (uchar*) pos, char_length_rec, |