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54 lines
1.5 KiB
Text
54 lines
1.5 KiB
Text
--source include/not_embedded.inc
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--source include/have_innodb.inc
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set @innodb_stats_persistent_save= @@innodb_stats_persistent;
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set @innodb_stats_persistent_sample_pages_save=
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@@innodb_stats_persistent_sample_pages;
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set global innodb_stats_persistent= 1;
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set global innodb_stats_persistent_sample_pages=100;
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create table t1
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(
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pk1 int not null,
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pk2 int not null,
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key1 int not null,
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key2 int not null,
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key (key1),
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key (key2),
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primary key (pk1, pk2)
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)engine=Innodb;
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--disable_query_log
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let $1=1000;
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while ($1)
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{
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eval insert into t1 values (1+$1/10,$1 mod 100,$1,$1/100);
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dec $1;
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}
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--enable_query_log
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analyze table t1;
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set optimizer_trace="enabled=on";
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set @tmp_index_merge_ror_cpk=@@optimizer_switch;
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set optimizer_switch='extended_keys=off';
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explain select * from t1 where pk1 != 0 and key1 = 1;
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select * from information_schema.OPTIMIZER_TRACE;
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drop table t1;
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set @@optimizer_switch= @tmp_index_merge_ror_cpk;
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set global innodb_stats_persistent= @innodb_stats_persistent_save;
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set global innodb_stats_persistent_sample_pages=
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@innodb_stats_persistent_sample_pages_save;
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--echo #
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--echo # MDEV-18962: ASAN heap-buffer-overflow in Single_line_formatting_helper::on_add_str with optimizer trace
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--echo #
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CREATE TABLE t1 (a date not null, b time, key(a), key(b)) ENGINE=InnoDB;
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INSERT INTO t1 VALUES ('1991-09-09','00:00:00'),('2032-08-24','02:22:24');
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SET SESSION optimizer_trace = 'enabled=on';
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SELECT * FROM t1 WHERE b IS NULL AND a = '2000-01-01';
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DROP TABLE t1;
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set optimizer_trace="enabled=off";
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