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Fixed LP bug #885168.

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The call of the virtual function cancel_pushed_idx_cond in the code of
the function test_if_skip_sort_order was misplaced when backporting the
fix for bug 58816.
This commit is contained in:
Igor Babaev
2011-11-04 05:39:45 -07:00
parent c1ebb566b3
commit 928e94fb98
7 changed files with 133 additions and 6 deletions
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32
mysql-test/r/myisam_icp.result
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@@ -627,6 +627,38 @@ FROM t3 JOIN t4 ON t4.f11 = t3.f10
f11 f10
DROP TABLE t1,t2,t3,t4;
set optimizer_switch= @tmp_778434;
#
# Bug#885168: ICP for one index + potential ORDER BY for another
#
CREATE TABLE t1 (a varchar(64), b varchar(10), INDEX(a), INDEX(b)) ;
INSERT INTO t1 VALUES
('Ohio','Iowa'), ('k','d'), ('bdkpj','mbdkpjdanp'), ('d','xdmbdkpjda'),
('fkxdmbdkpjdanpje','o'), ('f','Pennsylvan'), ('Virginia','ei');
SET SESSION optimizer_switch='index_condition_pushdown=off';
EXPLAIN
SELECT * FROM t1
WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
ORDER BY a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range b b 13 NULL 2 Using where; Rowid-ordered scan; Using filesort
SELECT * FROM t1
WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
ORDER BY a;
a b
d xdmbdkpjda
SET SESSION optimizer_switch='index_condition_pushdown=on';
EXPLAIN
SELECT * FROM t1
WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
ORDER BY a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range b b 13 NULL 2 Using index condition; Rowid-ordered scan; Using filesort
SELECT * FROM t1
WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
ORDER BY a;
a b
d xdmbdkpjda
DROP TABLE t1;
drop table if exists t0, t1, t1i, t1m;
#
# BUG#826935 Assertion `!table || (!table->read_set || bitmap_is_set(table->read_set, field_index))' failed