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Merge 10.2 into 10.3

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This commit is contained in:
Marko Mäkelä
2019-09-23 10:25:34 +03:00
parent 1bbe8c5e0f 2931fd2917
commit c016ea660e
90 changed files with 1022 additions and 555 deletions
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81
mysql-test/main/selectivity.test
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@ -1130,6 +1130,87 @@ drop table t1;
set use_stat_tables= @save_use_stat_tables;
set @@histogram_size=@save_histogram_size;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
--echo #
--echo # MDEV-20576: failing assertion DBUG_ASSERT(0.0 < sel && sel <= 1)
--echo #
set @@optimizer_use_condition_selectivity=2;
set names utf8;
CREATE DATABASE world;
use world;
--source include/world_schema.inc
--disable_query_log
--disable_result_log
--disable_warnings
--source include/world.inc
--enable_warnings
--enable_result_log
--enable_query_log
CREATE INDEX Name ON City(Name);
CREATE INDEX CountryPopulation ON City(Country,Population);
CREATE INDEX CountryName ON City(Country,Name);
--disable_query_log
--disable_result_log
--disable_warnings
ANALYZE TABLE City;
--enable_warnings
--enable_result_log
--enable_query_log
set @@optimizer_use_condition_selectivity=2;
EXPLAIN
SELECT * FROM City WHERE Country='FIN';
DROP DATABASE world;
use test;
CREATE TABLE t1 (
a INT,
b INT NOT NULL,
c char(100),
KEY (b, c),
KEY (b, a, c)
) ENGINE=MyISAM
DEFAULT CHARSET = utf8;
INSERT INTO t1 VALUES
(1, 1, 1),
(2, 2, 2),
(3, 3, 3),
(4, 4, 4),
(5, 5, 5),
(6, 6, 6),
(7, 7, 7),
(8, 8, 8),
(9, 9, 9);
INSERT INTO t1 SELECT a + 10, b, c FROM t1;
INSERT INTO t1 SELECT a + 20, b, c FROM t1;
INSERT INTO t1 SELECT a + 40, b, c FROM t1;
INSERT INTO t1 SELECT a + 80, b, c FROM t1;
INSERT INTO t1 SELECT a + 160, b, c FROM t1;
INSERT INTO t1 SELECT a + 320, b, c FROM t1;
INSERT INTO t1 SELECT a + 640, b, c FROM t1;
INSERT INTO t1 SELECT a + 1280, b, c FROM t1 LIMIT 80;
EXPLAIN
SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9;
SELECT a FROM t1 WHERE b = 1 ORDER BY c DESC LIMIT 9;
set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
DROP TABLE t1;
--echo # End of 10.1 tests
#