diff options
| -rw-r--r-- | mysql-test/r/heap_btree.result | 15 | ||||
| -rw-r--r-- | mysql-test/t/heap_btree.test | 14 | ||||
| -rw-r--r-- | storage/heap/hp_write.c | 1 |
3 files changed, 29 insertions, 1 deletions
diff --git a/mysql-test/r/heap_btree.result b/mysql-test/r/heap_btree.result index fd789a39d88..18d3dab1b06 100644 --- a/mysql-test/r/heap_btree.result +++ b/mysql-test/r/heap_btree.result @@ -280,6 +280,21 @@ a 1 1 drop table t1; +CREATE TABLE t1 ( +c1 CHAR(3), +c2 INTEGER, +KEY USING BTREE(c1), +KEY USING BTREE(c2) +) ENGINE= MEMORY; +INSERT INTO t1 VALUES ('ABC',0), ('A',0), ('B',0), ('C',0); +UPDATE t1 SET c2= c2 + 1 WHERE c1 = 'A'; +SELECT * FROM t1; +c1 c2 +ABC 0 +A 1 +B 0 +C 0 +DROP TABLE t1; End of 4.1 tests CREATE TABLE t1(val INT, KEY USING BTREE(val)) ENGINE=memory; INSERT INTO t1 VALUES(0); diff --git a/mysql-test/t/heap_btree.test b/mysql-test/t/heap_btree.test index 68aa79834fc..8e745d7646d 100644 --- a/mysql-test/t/heap_btree.test +++ b/mysql-test/t/heap_btree.test @@ -182,6 +182,20 @@ delete from t1 where a >= 2; select a from t1 order by a; drop table t1; +# +# Bug#26996 - Update of a Field in a Memory Table ends with wrong result +# +CREATE TABLE t1 ( + c1 CHAR(3), + c2 INTEGER, + KEY USING BTREE(c1), + KEY USING BTREE(c2) +) ENGINE= MEMORY; +INSERT INTO t1 VALUES ('ABC',0), ('A',0), ('B',0), ('C',0); +UPDATE t1 SET c2= c2 + 1 WHERE c1 = 'A'; +SELECT * FROM t1; +DROP TABLE t1; + --echo End of 4.1 tests # diff --git a/storage/heap/hp_write.c b/storage/heap/hp_write.c index 86e79c9d7ec..19215fcf017 100644 --- a/storage/heap/hp_write.c +++ b/storage/heap/hp_write.c @@ -105,7 +105,6 @@ int hp_rb_write_key(HP_INFO *info, HP_KEYDEF *keyinfo, const byte *record, heap_rb_param custom_arg; uint old_allocated; - info->last_pos= NULL; /* For heap_rnext/heap_rprev */ custom_arg.keyseg= keyinfo->seg; custom_arg.key_length= hp_rb_make_key(keyinfo, info->recbuf, record, recpos); if (keyinfo->flag & HA_NOSAME) |