mirror of
https://github.com/MariaDB/server.git
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a6daa9ada0
Fix Bug#50555 "handler commands crash server in my_hash_first()" as a post-merge fix (the new handler tests are not passing otherwise). - in hash.c, don't call calc_hash if ! my_hash_inited(). - add tests and results for the test case for Bug#50555 mysys/hash.c: Assert that the hash is initialized when it's used. sql/set_var.cc: Check that the hash is initalized before using it (Bug#50555)
1466 lines
33 KiB
Text
1466 lines
33 KiB
Text
SET SESSION STORAGE_ENGINE = InnoDB;
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drop table if exists t1,t3,t4,t5;
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create table t1 (a int, b char(10), key a(a), key b(a,b));
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insert into t1 values
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(17,"ddd"),(18,"eee"),(19,"fff"),(19,"yyy"),
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(14,"aaa"),(15,"bbb"),(16,"ccc"),(16,"xxx"),
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(20,"ggg"),(21,"hhh"),(22,"iii");
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handler t1 open as t2;
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handler t2 read a=(SELECT 1);
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT 1)' at line 1
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handler t2 read a first;
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a b
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14 aaa
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handler t2 read a next;
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a b
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15 bbb
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handler t2 read a next;
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a b
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16 ccc
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handler t2 read a prev;
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a b
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15 bbb
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handler t2 read a last;
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a b
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22 iii
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handler t2 read a prev;
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a b
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21 hhh
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handler t2 read a prev;
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a b
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20 ggg
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handler t2 read a first;
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a b
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14 aaa
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handler t2 read a prev;
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a b
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handler t2 read a last;
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a b
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22 iii
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handler t2 read a prev;
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a b
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21 hhh
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handler t2 read a next;
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a b
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22 iii
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handler t2 read a next;
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a b
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handler t2 read a=(15);
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a b
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15 bbb
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handler t2 read a=(16);
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a b
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16 ccc
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handler t2 read a=(19,"fff");
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ERROR 42000: Too many key parts specified; max 1 parts allowed
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handler t2 read b=(19,"fff");
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a b
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19 fff
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handler t2 read b=(19,"yyy");
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a b
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19 yyy
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handler t2 read b=(19);
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a b
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19 fff
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handler t1 read a last;
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ERROR 42S02: Unknown table 't1' in HANDLER
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handler t2 read a=(11);
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a b
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handler t2 read a>=(11);
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a b
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14 aaa
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handler t2 read a=(18);
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a b
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18 eee
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handler t2 read a>=(18);
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a b
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18 eee
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handler t2 read a>(18);
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a b
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19 fff
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handler t2 read a<=(18);
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a b
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18 eee
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handler t2 read a<(18);
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a b
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17 ddd
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handler t2 read a first limit 5;
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a b
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14 aaa
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15 bbb
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16 ccc
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16 xxx
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17 ddd
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handler t2 read a next limit 3;
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a b
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18 eee
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19 fff
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19 yyy
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handler t2 read a prev limit 10;
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a b
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19 fff
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18 eee
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17 ddd
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16 xxx
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16 ccc
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15 bbb
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14 aaa
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handler t2 read a>=(16) limit 4;
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a b
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16 ccc
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16 xxx
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17 ddd
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18 eee
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handler t2 read a>=(16) limit 2,2;
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a b
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17 ddd
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18 eee
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handler t2 read a last limit 3;
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a b
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22 iii
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21 hhh
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20 ggg
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handler t2 read a=(19);
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a b
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19 fff
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handler t2 read a=(19) where b="yyy";
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a b
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19 yyy
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handler t2 read first;
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a b
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17 ddd
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handler t2 read next;
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a b
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18 eee
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handler t2 read next;
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a b
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19 fff
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handler t2 read last;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
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handler t2 close;
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handler t1 open;
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handler t1 read a next;
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a b
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14 aaa
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handler t1 read a next;
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a b
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15 bbb
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handler t1 close;
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handler t1 open;
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handler t1 read a prev;
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a b
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22 iii
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handler t1 read a prev;
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a b
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21 hhh
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handler t1 close;
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handler t1 open as t2;
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handler t2 read first;
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a b
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17 ddd
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alter table t1 engine = InnoDB;
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handler t2 read first;
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ERROR 42S02: Unknown table 't2' in HANDLER
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handler t1 open as t2;
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drop table t1;
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create table t1 (a int);
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insert into t1 values (17);
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handler t2 read first;
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ERROR 42S02: Unknown table 't2' in HANDLER
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handler t1 open as t2;
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alter table t1 engine=MEMORY;
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handler t2 read first;
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ERROR 42S02: Unknown table 't2' in HANDLER
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drop table t1;
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create table t1 (a int);
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insert into t1 values (1),(2),(3),(4),(5),(6);
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delete from t1 limit 2;
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handler t1 open;
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handler t1 read first;
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a
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3
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handler t1 read first limit 1,1;
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a
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4
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handler t1 read first limit 2,2;
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a
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5
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6
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delete from t1 limit 3;
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handler t1 read first;
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a
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6
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drop table t1;
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create table t1(a int, index(a));
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insert into t1 values (1), (2), (3);
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handler t1 open;
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handler t1 read a=(W);
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ERROR 42S22: Unknown column 'W' in 'field list'
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handler t1 read a=(a);
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ERROR HY000: Incorrect arguments to HANDLER ... READ
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drop table t1;
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create table t1 (a char(5));
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insert into t1 values ("Ok");
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handler t1 open as t;
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handler t read first;
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a
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Ok
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use mysql;
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handler t read first;
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a
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Ok
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handler t close;
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handler test.t1 open as t;
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handler t read first;
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a
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Ok
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handler t close;
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use test;
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drop table t1;
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create table t1 ( a int, b int, INDEX a (a) );
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insert into t1 values (1,2), (2,1);
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handler t1 open;
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handler t1 read a=(1) where b=2;
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a b
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1 2
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handler t1 read a=(1) where b=3;
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a b
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handler t1 read a=(1) where b=1;
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a b
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handler t1 close;
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drop table t1;
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drop database if exists test_test;
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create database test_test;
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use test_test;
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create table t1(table_id char(20) primary key);
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insert into t1 values ('test_test.t1');
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insert into t1 values ('');
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handler t1 open;
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handler t1 read first limit 9;
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table_id
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test_test.t1
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create table t2(table_id char(20) primary key);
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insert into t2 values ('test_test.t2');
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insert into t2 values ('');
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handler t2 open;
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handler t2 read first limit 9;
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table_id
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test_test.t2
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use test;
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drop table if exists t1;
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create table t1(table_id char(20) primary key);
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insert into t1 values ('test.t1');
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insert into t1 values ('');
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handler t1 open;
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ERROR 42000: Not unique table/alias: 't1'
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use test;
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handler test.t1 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler test_test.t1 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler t1 read first limit 9;
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table_id
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test_test.t1
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handler test_test.t2 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler t2 read first limit 9;
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table_id
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test_test.t2
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handler test_test.t1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t1 close;
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drop table test_test.t1;
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handler test_test.t2 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t2 close;
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drop table test_test.t2;
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drop database test_test;
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use test;
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handler test.t1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t1 close;
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ERROR 42S02: Unknown table 't1' in HANDLER
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drop table test.t1;
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drop database if exists test_test;
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drop table if exists t1;
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drop table if exists t2;
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drop table if exists t3;
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create database test_test;
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use test_test;
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create table t1 (c1 char(20));
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insert into t1 values ('test_test.t1');
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create table t3 (c1 char(20));
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insert into t3 values ('test_test.t3');
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handler t1 open;
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handler t1 read first limit 9;
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c1
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test_test.t1
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handler t1 open h1;
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handler h1 read first limit 9;
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c1
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test_test.t1
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use test;
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create table t1 (c1 char(20));
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create table t2 (c1 char(20));
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create table t3 (c1 char(20));
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insert into t1 values ('t1');
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insert into t2 values ('t2');
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insert into t3 values ('t3');
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handler t1 open;
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ERROR 42000: Not unique table/alias: 't1'
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handler t2 open t1;
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ERROR 42000: Not unique table/alias: 't1'
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handler t3 open t1;
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ERROR 42000: Not unique table/alias: 't1'
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handler t1 read first limit 9;
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c1
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test_test.t1
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handler test.t1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler test.t1 open h1;
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ERROR 42000: Not unique table/alias: 'h1'
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handler test_test.t1 open h1;
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ERROR 42000: Not unique table/alias: 'h1'
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handler test_test.t3 open h3;
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handler test.t1 open h2;
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handler t1 read first limit 9;
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c1
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test_test.t1
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handler h1 read first limit 9;
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c1
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test_test.t1
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handler h2 read first limit 9;
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c1
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t1
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handler h3 read first limit 9;
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c1
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test_test.t3
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handler h2 read first limit 9;
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c1
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t1
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handler test.h1 close;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'close' at line 1
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handler t1 close;
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handler h1 close;
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handler h2 close;
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handler t1 read first limit 9;
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ERROR 42S02: Unknown table 't1' in HANDLER
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handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
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ERROR 42S02: Unknown table 'h2' in HANDLER
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handler h3 read first limit 9;
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c1
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test_test.t3
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handler h3 read first limit 9;
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c1
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test_test.t3
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use test_test;
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handler h3 read first limit 9;
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c1
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test_test.t3
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handler test.h3 read first limit 9;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'read first limit 9' at line 1
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handler h3 close;
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use test;
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drop table t3;
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drop table t2;
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drop table t1;
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drop database test_test;
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create table t1 (c1 char(20));
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insert into t1 values ("t1");
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handler t1 open as h1;
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handler h1 read first limit 9;
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c1
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t1
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create table t2 (c1 char(20));
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insert into t2 values ("t2");
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handler t2 open as h2;
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handler h2 read first limit 9;
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c1
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t2
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create table t3 (c1 char(20));
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insert into t3 values ("t3");
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handler t3 open as h3;
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handler h3 read first limit 9;
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c1
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t3
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create table t4 (c1 char(20));
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insert into t4 values ("t4");
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handler t4 open as h4;
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handler h4 read first limit 9;
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c1
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t4
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create table t5 (c1 char(20));
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insert into t5 values ("t5");
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handler t5 open as h5;
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handler h5 read first limit 9;
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c1
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t5
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alter table t1 engine=MyISAM;
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handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
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c1
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t2
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handler h3 read first limit 9;
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c1
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t3
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handler h4 read first limit 9;
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c1
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t4
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handler h5 read first limit 9;
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c1
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t5
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alter table t5 engine=MyISAM;
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handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
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c1
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t2
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handler h3 read first limit 9;
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c1
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t3
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handler h4 read first limit 9;
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c1
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t4
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handler h5 read first limit 9;
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ERROR 42S02: Unknown table 'h5' in HANDLER
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alter table t3 engine=MyISAM;
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handler h1 read first limit 9;
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ERROR 42S02: Unknown table 'h1' in HANDLER
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handler h2 read first limit 9;
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c1
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t2
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handler h3 read first limit 9;
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ERROR 42S02: Unknown table 'h3' in HANDLER
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handler h4 read first limit 9;
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c1
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t4
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handler h5 read first limit 9;
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ERROR 42S02: Unknown table 'h5' in HANDLER
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handler h2 close;
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handler h4 close;
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handler t1 open as h1_1;
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handler t1 open as h1_2;
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handler t1 open as h1_3;
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handler h1_1 read first limit 9;
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c1
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t1
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handler h1_2 read first limit 9;
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c1
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t1
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handler h1_3 read first limit 9;
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c1
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t1
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alter table t1 engine=InnoDB;
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handler h1_1 read first limit 9;
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ERROR 42S02: Unknown table 'h1_1' in HANDLER
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handler h1_2 read first limit 9;
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ERROR 42S02: Unknown table 'h1_2' in HANDLER
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handler h1_3 read first limit 9;
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ERROR 42S02: Unknown table 'h1_3' in HANDLER
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drop table t1;
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drop table t2;
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drop table t3;
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drop table t4;
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drop table t5;
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create table t1 (c1 int);
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insert into t1 values (1);
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handler t1 open;
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handler t1 read first;
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c1
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1
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send the below to another connection, do not wait for the result
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optimize table t1;
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proceed with the normal connection
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handler t1 read next;
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c1
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1
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handler t1 close;
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read the result from the other connection
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Table Op Msg_type Msg_text
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test.t1 optimize note Table does not support optimize, doing recreate + analyze instead
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test.t1 optimize status OK
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proceed with the normal connection
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drop table t1;
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CREATE TABLE t1 ( no1 smallint(5) NOT NULL default '0', no2 int(10) NOT NULL default '0', PRIMARY KEY (no1,no2));
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INSERT INTO t1 VALUES (1,274),(1,275),(2,6),(2,8),(4,1),(4,2);
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HANDLER t1 OPEN;
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HANDLER t1 READ `primary` = (1, 1000);
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no1 no2
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HANDLER t1 READ `primary` PREV;
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no1 no2
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1 275
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DROP TABLE t1;
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create table t1 (c1 int);
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insert into t1 values (14397);
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flush tables with read lock;
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drop table t1;
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ERROR HY000: Can't execute the query because you have a conflicting read lock
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send the below to another connection, do not wait for the result
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drop table t1;
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proceed with the normal connection
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select * from t1;
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c1
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14397
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unlock tables;
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read the result from the other connection
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proceed with the normal connection
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select * from t1;
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ERROR 42S02: Table 'test.t1' doesn't exist
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drop table if exists t1;
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Warnings:
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Note 1051 Unknown table 't1'
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drop table if exists t1;
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create table t1 (a int) ENGINE=MEMORY;
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--> client 2
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handler t1 open;
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ERROR HY000: Table storage engine for 't1' doesn't have this option
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--> client 1
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drop table t1;
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drop table if exists t1;
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create table t1 (a int);
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handler t1 open as t1_alias;
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handler t1_alias read a next;
|
|
ERROR 42000: Key 'a' doesn't exist in table 't1_alias'
|
|
handler t1_alias READ a next where inexistent > 0;
|
|
ERROR 42S22: Unknown column 'inexistent' in 'field list'
|
|
handler t1_alias read a next;
|
|
ERROR 42000: Key 'a' doesn't exist in table 't1_alias'
|
|
handler t1_alias READ a next where inexistent > 0;
|
|
ERROR 42S22: Unknown column 'inexistent' in 'field list'
|
|
handler t1_alias close;
|
|
drop table t1;
|
|
drop table if exists t1,t2;
|
|
create table t1 (c1 int);
|
|
create table t2 (c1 int);
|
|
insert into t1 values (1);
|
|
insert into t2 values (2);
|
|
connection: default
|
|
handler t1 open;
|
|
handler t1 read first;
|
|
c1
|
|
1
|
|
connection: flush
|
|
flush tables;;
|
|
connection: waiter
|
|
connection: default
|
|
handler t2 open;
|
|
handler t2 read first;
|
|
c1
|
|
2
|
|
handler t1 read next;
|
|
c1
|
|
1
|
|
handler t1 close;
|
|
handler t2 close;
|
|
drop table t1,t2;
|
|
drop table if exists t1, t0;
|
|
create table t1 (c1 int);
|
|
connection: default
|
|
handler t1 open;
|
|
handler t1 read first;
|
|
c1
|
|
connection: flush
|
|
rename table t1 to t0;;
|
|
connection: waiter
|
|
connection: default
|
|
#
|
|
# RENAME placed two pending locks and waits.
|
|
# When HANDLER t0 OPEN does open_tables(), it calls
|
|
# mysql_ha_flush(), which in turn closes the open HANDLER for t1.
|
|
# RENAME TABLE gets unblocked. If it gets scheduled quickly
|
|
# and manages to complete before open_tables()
|
|
# of HANDLER t0 OPEN, open_tables() and therefore the whole
|
|
# HANDLER t0 OPEN succeeds. Otherwise open_tables()
|
|
# notices a pending or active exclusive metadata lock on t2
|
|
# and the whole HANDLER t0 OPEN fails with ER_LOCK_DEADLOCK
|
|
# error.
|
|
#
|
|
handler t0 open;
|
|
handler t0 close;
|
|
connection: flush
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
handler t1 close;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
drop table t0;
|
|
drop table if exists t1;
|
|
create temporary table t1 (a int, b char(1), key a(a), key b(a,b));
|
|
insert into t1 values (0,"a"),(1,"b"),(2,"c"),(3,"d"),(4,"e"),
|
|
(5,"f"),(6,"g"),(7,"h"),(8,"i"),(9,"j");
|
|
select a,b from t1;
|
|
a b
|
|
0 a
|
|
1 b
|
|
2 c
|
|
3 d
|
|
4 e
|
|
5 f
|
|
6 g
|
|
7 h
|
|
8 i
|
|
9 j
|
|
handler t1 open as a1;
|
|
handler a1 read a first;
|
|
a b
|
|
0 a
|
|
handler a1 read a next;
|
|
a b
|
|
1 b
|
|
handler a1 read a next;
|
|
a b
|
|
2 c
|
|
select a,b from t1;
|
|
ERROR HY000: Can't reopen table: 'a1'
|
|
handler a1 read a prev;
|
|
a b
|
|
1 b
|
|
handler a1 read a prev;
|
|
a b
|
|
0 a
|
|
handler a1 read a=(6) where b="g";
|
|
a b
|
|
6 g
|
|
handler a1 close;
|
|
select a,b from t1;
|
|
a b
|
|
0 a
|
|
1 b
|
|
2 c
|
|
3 d
|
|
4 e
|
|
5 f
|
|
6 g
|
|
7 h
|
|
8 i
|
|
9 j
|
|
handler t1 open as a2;
|
|
handler a2 read a first;
|
|
a b
|
|
0 a
|
|
handler a2 read a last;
|
|
a b
|
|
9 j
|
|
handler a2 read a prev;
|
|
a b
|
|
8 i
|
|
handler a2 close;
|
|
drop table t1;
|
|
drop table if exists t1,t2;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
flush tables;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
handler t1_alias close;
|
|
drop table t1;
|
|
create table t1 (a int);
|
|
handler t1 open as t1_alias;
|
|
handler t1_alias read first;
|
|
a
|
|
drop table t1;
|
|
handler t1_alias read next;
|
|
ERROR 42S02: Unknown table 't1_alias' in HANDLER
|
|
create table t1 (a int);
|
|
create temporary table t2 (a int, key(a));
|
|
handler t1 open as a1;
|
|
handler t2 open as a2;
|
|
handler a2 read a first;
|
|
a
|
|
drop table t1, t2;
|
|
handler a2 read a next;
|
|
ERROR 42S02: Unknown table 'a2' in HANDLER
|
|
handler a1 close;
|
|
ERROR 42S02: Unknown table 'a1' in HANDLER
|
|
create table t1 (a int, key(a));
|
|
create table t2 like t1;
|
|
handler t1 open as a1;
|
|
handler t2 open as a2;
|
|
handler a1 read a first;
|
|
a
|
|
handler a2 read a first;
|
|
a
|
|
alter table t1 add b int;
|
|
handler a1 close;
|
|
ERROR 42S02: Unknown table 'a1' in HANDLER
|
|
handler a2 close;
|
|
drop table t1, t2;
|
|
create table t1 (a int, key(a));
|
|
handler t1 open as a1;
|
|
handler a1 read a first;
|
|
a
|
|
rename table t1 to t2;
|
|
handler a1 read a first;
|
|
ERROR 42S02: Unknown table 'a1' in HANDLER
|
|
drop table t2;
|
|
create table t1 (a int, key(a));
|
|
create table t2 like t1;
|
|
handler t1 open as a1;
|
|
handler t2 open as a2;
|
|
handler a1 read a first;
|
|
a
|
|
handler a2 read a first;
|
|
a
|
|
optimize table t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 optimize note Table does not support optimize, doing recreate + analyze instead
|
|
test.t1 optimize status OK
|
|
handler a1 close;
|
|
ERROR 42S02: Unknown table 'a1' in HANDLER
|
|
handler a2 close;
|
|
drop table t1, t2;
|
|
create table t1 (a int, b char(1), key a(a), key b(a,b));
|
|
insert into t1 values (0,"a"),(1,"b"),(2,"c"),(3,"d"),(4,"e"),
|
|
(5,"f"),(6,"g"),(7,"h"),(8,"i"),(9,"j");
|
|
handler t1 open;
|
|
handler t1 read a first;
|
|
a b
|
|
0 a
|
|
handler t1 read a next;
|
|
a b
|
|
1 b
|
|
flush tables;
|
|
handler t1 read a next;
|
|
a b
|
|
0 a
|
|
handler t1 read a next;
|
|
a b
|
|
1 b
|
|
flush tables with read lock;
|
|
handler t1 read a next;
|
|
a b
|
|
0 a
|
|
unlock tables;
|
|
drop table t1;
|
|
handler t1 read a next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
drop table if exists t1;
|
|
# First test case which is supposed trigger the execution
|
|
# path on which problem was discovered.
|
|
create table t1 (a int);
|
|
insert into t1 values (1);
|
|
handler t1 open;
|
|
lock table t1 write;
|
|
alter table t1 engine=memory;
|
|
handler t1 read a next;
|
|
ERROR HY000: Table storage engine for 't1' doesn't have this option
|
|
handler t1 close;
|
|
unlock tables;
|
|
drop table t1;
|
|
# Now test case which was reported originally but which no longer
|
|
# triggers execution path which has caused the problem.
|
|
create table t1 (a int, key(a));
|
|
insert into t1 values (1);
|
|
handler t1 open;
|
|
alter table t1 engine=memory;
|
|
# Since S metadata lock was already acquired at HANDLER OPEN time
|
|
# and TL_READ lock requested by HANDLER READ is compatible with
|
|
# ALTER's TL_WRITE_ALLOW_READ the below statement should succeed
|
|
# without waiting. The old version of table should be used in it.
|
|
handler t1 read a next;
|
|
a
|
|
1
|
|
handler t1 close;
|
|
drop table t1;
|
|
USE information_schema;
|
|
HANDLER COLUMNS OPEN;
|
|
ERROR HY000: Incorrect usage of HANDLER OPEN and information_schema
|
|
USE test;
|
|
#
|
|
# Add test coverage for HANDLER and LOCK TABLES, HANDLER and DDL.
|
|
#
|
|
drop table if exists t1, t2, t3;
|
|
create table t1 (a int, key a (a));
|
|
insert into t1 (a) values (1), (2), (3), (4), (5);
|
|
create table t2 (a int, key a (a)) select * from t1;
|
|
create temporary table t3 (a int, key a (a)) select * from t2;
|
|
handler t1 open;
|
|
handler t2 open;
|
|
handler t3 open;
|
|
#
|
|
# LOCK TABLES implicitly closes all handlers.
|
|
#
|
|
lock table t3 read;
|
|
#
|
|
# No HANDLER sql is available under lock tables anyway.
|
|
#
|
|
handler t1 open;
|
|
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
|
|
handler t1 read next;
|
|
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
|
|
handler t2 close;
|
|
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
|
|
handler t3 open;
|
|
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
|
|
# After UNLOCK TABLES no handlers are around, they were
|
|
# implicitly closed.
|
|
unlock tables;
|
|
drop temporary table t3;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
handler t2 close;
|
|
ERROR 42S02: Unknown table 't2' in HANDLER
|
|
handler t3 read next;
|
|
ERROR 42S02: Unknown table 't3' in HANDLER
|
|
#
|
|
# Other operations also implicitly close handler:
|
|
#
|
|
# TRUNCATE
|
|
#
|
|
handler t1 open;
|
|
truncate table t1;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
handler t1 open;
|
|
#
|
|
# CREATE TRIGGER
|
|
#
|
|
create trigger t1_ai after insert on t1 for each row set @a=1;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# DROP TRIGGER
|
|
#
|
|
handler t1 open;
|
|
drop trigger t1_ai;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# ALTER TABLE
|
|
#
|
|
handler t1 open;
|
|
alter table t1 add column b int;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# ANALYZE TABLE
|
|
#
|
|
handler t1 open;
|
|
analyze table t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 analyze status OK
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# OPTIMIZE TABLE
|
|
#
|
|
handler t1 open;
|
|
optimize table t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 optimize note Table does not support optimize, doing recreate + analyze instead
|
|
test.t1 optimize status OK
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# REPAIR TABLE
|
|
#
|
|
handler t1 open;
|
|
repair table t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 repair note The storage engine for the table doesn't support repair
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# DROP TABLE, naturally.
|
|
#
|
|
handler t1 open;
|
|
drop table t1;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
create table t1 (a int, b int, key a (a)) select a from t2;
|
|
#
|
|
# RENAME TABLE, naturally
|
|
#
|
|
handler t1 open;
|
|
rename table t1 to t3;
|
|
handler t1 read next;
|
|
ERROR 42S02: Unknown table 't1' in HANDLER
|
|
#
|
|
# CREATE TABLE (even with IF NOT EXISTS clause,
|
|
# and the table exists).
|
|
#
|
|
handler t2 open;
|
|
create table if not exists t2 (a int);
|
|
Warnings:
|
|
Note 1050 Table 't2' already exists
|
|
handler t2 read next;
|
|
ERROR 42S02: Unknown table 't2' in HANDLER
|
|
rename table t3 to t1;
|
|
drop table t2;
|
|
#
|
|
# FLUSH TABLE doesn't close the table but loses the position
|
|
#
|
|
handler t1 open;
|
|
handler t1 read a prev;
|
|
b a
|
|
NULL 5
|
|
flush table t1;
|
|
handler t1 read a prev;
|
|
b a
|
|
NULL 5
|
|
handler t1 close;
|
|
#
|
|
# FLUSH TABLES WITH READ LOCK behaves like FLUSH TABLE.
|
|
#
|
|
handler t1 open;
|
|
handler t1 read a prev;
|
|
b a
|
|
NULL 5
|
|
flush tables with read lock;
|
|
handler t1 read a prev;
|
|
b a
|
|
NULL 5
|
|
handler t1 close;
|
|
unlock tables;
|
|
#
|
|
# Explore the effect of HANDLER locks on concurrent DDL
|
|
#
|
|
handler t1 open;
|
|
# Establishing auxiliary connections con1, con2, con3
|
|
# --> connection con1;
|
|
# Sending:
|
|
drop table t1 ;
|
|
# We can't use connection 'default' as wait_condition will
|
|
# autoclose handlers.
|
|
# --> connection con2
|
|
# Waitng for 'drop table t1' to get blocked...
|
|
# --> connection default
|
|
handler t1 read a prev;
|
|
b a
|
|
NULL 5
|
|
handler t1 read a prev;
|
|
b a
|
|
NULL 4
|
|
handler t1 close;
|
|
# --> connection con1
|
|
# Reaping 'drop table t1'...
|
|
# --> connection default
|
|
#
|
|
# Explore the effect of HANDLER locks in parallel with SELECT
|
|
#
|
|
create table t1 (a int, key a (a));
|
|
insert into t1 (a) values (1), (2), (3), (4), (5);
|
|
begin;
|
|
select * from t1;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
handler t1 open;
|
|
handler t1 read a prev;
|
|
a
|
|
5
|
|
handler t1 read a prev;
|
|
a
|
|
4
|
|
handler t1 close;
|
|
# --> connection con1;
|
|
# Sending:
|
|
drop table t1 ;
|
|
# --> connection con2
|
|
# Waiting for 'drop table t1' to get blocked...
|
|
# --> connection default
|
|
# We can still use the table, it's part of the transaction
|
|
select * from t1;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
# Such are the circumstances that t1 is a part of transaction,
|
|
# thus we can reopen it in the handler
|
|
handler t1 open;
|
|
# We can commit the transaction, it doesn't close the handler
|
|
# and doesn't let DROP to proceed.
|
|
commit;
|
|
handler t1 read a prev;
|
|
a
|
|
5
|
|
handler t1 read a prev;
|
|
a
|
|
4
|
|
handler t1 read a prev;
|
|
a
|
|
3
|
|
handler t1 close;
|
|
# --> connection con1
|
|
# Now drop can proceed
|
|
# Reaping 'drop table t1'...
|
|
# --> connection default
|
|
#
|
|
# Demonstrate that HANDLER locks and transaction locks
|
|
# reside in the same context, and we don't back-off
|
|
# when have transaction or handler locks.
|
|
#
|
|
create table t1 (a int, key a (a));
|
|
insert into t1 (a) values (1), (2), (3), (4), (5);
|
|
create table t0 (a int, key a (a));
|
|
insert into t0 (a) values (1), (2), (3), (4), (5);
|
|
begin;
|
|
select * from t1;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
# --> connection con2
|
|
# Sending:
|
|
rename table t0 to t3, t1 to t0, t3 to t1;
|
|
# --> connection con1
|
|
# Waiting for 'rename table ...' to get blocked...
|
|
# --> connection default
|
|
handler t0 open;
|
|
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
|
|
select * from t0;
|
|
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
|
|
handler t1 open;
|
|
commit;
|
|
handler t1 close;
|
|
# --> connection con2
|
|
# Reaping 'rename table ...'...
|
|
# --> connection default
|
|
handler t1 open;
|
|
handler t1 read a prev;
|
|
a
|
|
5
|
|
handler t1 close;
|
|
drop table t0;
|
|
#
|
|
# Originally there was a deadlock error in this test.
|
|
# With implementation of deadlock detector
|
|
# we no longer deadlock, but block and wait on a lock.
|
|
# The HANDLER is auto-closed as soon as the connection
|
|
# sees a pending conflicting lock against it.
|
|
#
|
|
create table t2 (a int, key a (a));
|
|
handler t1 open;
|
|
# --> connection con1
|
|
lock tables t2 read;
|
|
# --> connection con2
|
|
# Sending 'drop table t2'...
|
|
drop table t2;
|
|
# --> connection con1
|
|
# Waiting for 'drop table t2' to get blocked...
|
|
# --> connection default
|
|
# Sending 'select * from t2'
|
|
select * from t2;
|
|
# --> connection con1
|
|
# Waiting for 'select * from t2' to get blocked...
|
|
unlock tables;
|
|
# --> connection con2
|
|
# Reaping 'drop table t2'...
|
|
# --> connection default
|
|
# Reaping 'select * from t2'
|
|
ERROR 42S02: Table 'test.t2' doesn't exist
|
|
handler t1 close;
|
|
#
|
|
# ROLLBACK TO SAVEPOINT releases transactional locks,
|
|
# but has no effect on open HANDLERs
|
|
#
|
|
create table t2 like t1;
|
|
create table t3 like t1;
|
|
begin;
|
|
# Have something before the savepoint
|
|
select * from t3;
|
|
a
|
|
savepoint sv;
|
|
handler t1 open;
|
|
handler t1 read a first;
|
|
a
|
|
1
|
|
handler t1 read a next;
|
|
a
|
|
2
|
|
select * from t2;
|
|
a
|
|
# --> connection con1
|
|
# Sending:
|
|
drop table t1;
|
|
# --> connection con2
|
|
# Sending:
|
|
drop table t2;
|
|
# --> connection default
|
|
# Let DROP TABLE statements sync in. We must use
|
|
# a separate connection for that, because otherwise SELECT
|
|
# will auto-close the HANDLERs, becaues there are pending
|
|
# exclusive locks against them.
|
|
# --> connection con3
|
|
# Waiting for 'drop table t1' to get blocked...
|
|
# Waiting for 'drop table t2' to get blocked...
|
|
# Demonstrate that t2 lock was released and t2 was dropped
|
|
# after ROLLBACK TO SAVEPOINT
|
|
# --> connection default
|
|
rollback to savepoint sv;
|
|
# --> connection con2
|
|
# Reaping 'drop table t2'...
|
|
# Demonstrate that ROLLBACK TO SAVEPOINT didn't release the handler
|
|
# lock.
|
|
# --> connection default
|
|
handler t1 read a next;
|
|
a
|
|
3
|
|
handler t1 read a next;
|
|
a
|
|
4
|
|
# Demonstrate that the drop will go through as soon as we close the
|
|
# HANDLER
|
|
handler t1 close;
|
|
# connection con1
|
|
# Reaping 'drop table t1'...
|
|
# --> connection default
|
|
commit;
|
|
drop table t3;
|
|
#
|
|
# A few special cases when using SAVEPOINT/ROLLBACK TO
|
|
# SAVEPOINT and HANDLER.
|
|
#
|
|
# Show that rollback to the savepoint taken in the beginning
|
|
# of the transaction doesn't release mdl lock on
|
|
# the HANDLER that was opened later.
|
|
#
|
|
create table t1 (a int, key a(a));
|
|
insert into t1 (a) values (1), (2), (3), (4), (5);
|
|
create table t2 like t1;
|
|
begin;
|
|
savepoint sv;
|
|
handler t1 open;
|
|
handler t1 read a first;
|
|
a
|
|
1
|
|
handler t1 read a next;
|
|
a
|
|
2
|
|
select * from t2;
|
|
a
|
|
# --> connection con1
|
|
# Sending:
|
|
drop table t1;
|
|
# --> connection con2
|
|
# Sending:
|
|
drop table t2;
|
|
# --> connection default
|
|
# Let DROP TABLE statements sync in. We must use
|
|
# a separate connection for that, because otherwise SELECT
|
|
# will auto-close the HANDLERs, becaues there are pending
|
|
# exclusive locks against them.
|
|
# --> connection con3
|
|
# Waiting for 'drop table t1' to get blocked...
|
|
# Waiting for 'drop table t2' to get blocked...
|
|
# Demonstrate that t2 lock was released and t2 was dropped
|
|
# after ROLLBACK TO SAVEPOINT
|
|
# --> connection default
|
|
rollback to savepoint sv;
|
|
# --> connection con2
|
|
# Reaping 'drop table t2'...
|
|
# Demonstrate that ROLLBACK TO SAVEPOINT didn't release the handler
|
|
# lock.
|
|
# --> connection default
|
|
handler t1 read a next;
|
|
a
|
|
3
|
|
handler t1 read a next;
|
|
a
|
|
4
|
|
# Demonstrate that the drop will go through as soon as we close the
|
|
# HANDLER
|
|
handler t1 close;
|
|
# connection con1
|
|
# Reaping 'drop table t1'...
|
|
# --> connection default
|
|
commit;
|
|
#
|
|
# Show that rollback to the savepoint taken in the beginning
|
|
# of the transaction works properly (no valgrind warnins, etc),
|
|
# even though it's done after the HANDLER mdl lock that was there
|
|
# at the beginning is released and added again.
|
|
#
|
|
create table t1 (a int, key a(a));
|
|
insert into t1 (a) values (1), (2), (3), (4), (5);
|
|
create table t2 like t1;
|
|
create table t3 like t1;
|
|
insert into t3 (a) select a from t1;
|
|
begin;
|
|
handler t1 open;
|
|
savepoint sv;
|
|
handler t1 read a first;
|
|
a
|
|
1
|
|
select * from t2;
|
|
a
|
|
handler t1 close;
|
|
handler t3 open;
|
|
handler t3 read a first;
|
|
a
|
|
1
|
|
rollback to savepoint sv;
|
|
# --> connection con1
|
|
drop table t1, t2;
|
|
# Sending:
|
|
drop table t3;
|
|
# Let DROP TABLE statement sync in.
|
|
# --> connection con2
|
|
# Waiting for 'drop table t3' to get blocked...
|
|
# Demonstrate that ROLLBACK TO SAVEPOINT didn't release the handler
|
|
# lock.
|
|
# --> connection default
|
|
handler t3 read a next;
|
|
a
|
|
2
|
|
# Demonstrate that the drop will go through as soon as we close the
|
|
# HANDLER
|
|
handler t3 close;
|
|
# connection con1
|
|
# Reaping 'drop table t3'...
|
|
# --> connection default
|
|
commit;
|
|
#
|
|
# If we have to wait on an exclusive locks while having
|
|
# an open HANDLER, ER_LOCK_DEADLOCK is reported.
|
|
#
|
|
create table t1 (a int, key a(a));
|
|
create table t2 like t1;
|
|
handler t1 open;
|
|
# --> connection con1
|
|
lock table t1 write, t2 write;
|
|
# --> connection default
|
|
drop table t2;
|
|
# --> connection con2
|
|
# Waiting for 'drop table t2' to get blocked...
|
|
# --> connection con1
|
|
drop table t1;
|
|
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
|
|
unlock tables;
|
|
# --> connection default
|
|
# Demonstrate that there is no deadlock with FLUSH TABLE,
|
|
# even though it is waiting for the other table to go away
|
|
create table t2 like t1;
|
|
# Sending:
|
|
flush table t2;
|
|
# --> connection con2
|
|
drop table t1;
|
|
# --> connection con1
|
|
unlock tables;
|
|
# --> connection default
|
|
# Reaping 'flush table t2'...
|
|
drop table t2;
|
|
#
|
|
# Bug #46224 HANDLER statements within a transaction might
|
|
# lead to deadlocks
|
|
#
|
|
create table t1 (a int, key a(a));
|
|
insert into t1 values (1), (2);
|
|
# --> connection default
|
|
begin;
|
|
select * from t1;
|
|
a
|
|
1
|
|
2
|
|
handler t1 open;
|
|
# --> connection con1
|
|
# Sending:
|
|
lock tables t1 write;
|
|
# --> connection con2
|
|
# Check that 'lock tables t1 write' waits until transaction which
|
|
# has read from the table commits.
|
|
# --> connection default
|
|
# The below 'handler t1 read ...' should not be blocked as
|
|
# 'lock tables t1 write' has not succeeded yet.
|
|
handler t1 read a next;
|
|
a
|
|
1
|
|
# Unblock 'lock tables t1 write'.
|
|
commit;
|
|
# --> connection con1
|
|
# Reap 'lock tables t1 write'.
|
|
# --> connection default
|
|
# Sending:
|
|
handler t1 read a next;
|
|
# --> connection con1
|
|
# Waiting for 'handler t1 read a next' to get blocked...
|
|
# The below 'drop table t1' should be able to proceed without
|
|
# waiting as it will force HANDLER to be closed.
|
|
drop table t1;
|
|
unlock tables;
|
|
# --> connection default
|
|
# Reaping 'handler t1 read a next'...
|
|
ERROR 42S02: Table 'test.t1' doesn't exist
|
|
handler t1 close;
|
|
# --> connection con1
|
|
# --> connection con2
|
|
# --> connection con3
|
|
#
|
|
# A temporary table test.
|
|
# Check that we don't loose positions of HANDLER opened
|
|
# against a temporary table.
|
|
#
|
|
create table t1 (a int, b int, key a (a));
|
|
insert into t1 (a) values (1), (2), (3), (4), (5);
|
|
create temporary table t2 (a int, b int, key a (a));
|
|
insert into t2 (a) select a from t1;
|
|
handler t1 open;
|
|
handler t1 read a next;
|
|
a b
|
|
1 NULL
|
|
handler t2 open;
|
|
handler t2 read a next;
|
|
a b
|
|
1 NULL
|
|
flush table t1;
|
|
handler t2 read a next;
|
|
a b
|
|
2 NULL
|
|
# Sic: the position is lost
|
|
handler t1 read a next;
|
|
a b
|
|
1 NULL
|
|
select * from t1;
|
|
a b
|
|
1 NULL
|
|
2 NULL
|
|
3 NULL
|
|
4 NULL
|
|
5 NULL
|
|
# Sic: the position is not lost
|
|
handler t2 read a next;
|
|
a b
|
|
3 NULL
|
|
select * from t2;
|
|
ERROR HY000: Can't reopen table: 't2'
|
|
handler t2 read a next;
|
|
a b
|
|
4 NULL
|
|
drop table t1;
|
|
drop temporary table t2;
|
|
#
|
|
# A test for lock_table_names()/unlock_table_names() function.
|
|
# It should work properly in presence of open HANDLER.
|
|
#
|
|
create table t1 (a int, b int, key a (a));
|
|
create table t2 like t1;
|
|
create table t3 like t1;
|
|
create table t4 like t1;
|
|
handler t1 open;
|
|
handler t2 open;
|
|
rename table t4 to t5, t3 to t4, t5 to t3;
|
|
handler t1 read first;
|
|
a b
|
|
handler t2 read first;
|
|
a b
|
|
drop table t1, t2, t3, t4;
|
|
#
|
|
# A test for FLUSH TABLES WITH READ LOCK and HANDLER statements.
|
|
#
|
|
set autocommit=0;
|
|
create table t1 (a int, b int, key a (a));
|
|
insert into t1 (a, b) values (1, 1), (2, 1), (3, 2), (4, 2), (5, 5);
|
|
create table t2 like t1;
|
|
insert into t2 (a, b) select a, b from t1;
|
|
create table t3 like t1;
|
|
insert into t3 (a, b) select a, b from t1;
|
|
commit;
|
|
flush tables with read lock;
|
|
handler t1 open;
|
|
lock table t1 read;
|
|
handler t1 read next;
|
|
ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
|
|
# This implicitly leaves LOCK TABLES but doesn't drop the GLR
|
|
lock table not_exists_write read;
|
|
ERROR 42S02: Table 'test.not_exists_write' doesn't exist
|
|
# We still have the read lock.
|
|
drop table t1;
|
|
ERROR HY000: Can't execute the query because you have a conflicting read lock
|
|
handler t1 open;
|
|
select a from t2;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
handler t1 read next;
|
|
a b
|
|
1 1
|
|
flush tables with read lock;
|
|
handler t2 open;
|
|
flush tables with read lock;
|
|
handler t1 read next;
|
|
a b
|
|
1 1
|
|
select a from t3;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
handler t2 read next;
|
|
a b
|
|
1 1
|
|
handler t1 close;
|
|
rollback;
|
|
handler t2 close;
|
|
drop table t1;
|
|
ERROR HY000: Can't execute the query because you have a conflicting read lock
|
|
commit;
|
|
flush tables;
|
|
drop table t1;
|
|
ERROR HY000: Can't execute the query because you have a conflicting read lock
|
|
unlock tables;
|
|
drop table t1;
|
|
set autocommit=default;
|
|
drop table t2, t3;
|
|
#
|
|
# HANDLER statement and operation-type aware metadata locks.
|
|
# Check that when we clone a ticket for HANDLER we downrade
|
|
# the lock.
|
|
#
|
|
# Establish an auxiliary connection con1.
|
|
# -> connection default
|
|
create table t1 (a int, b int, key a (a));
|
|
insert into t1 (a, b) values (1, 1), (2, 1), (3, 2), (4, 2), (5, 5);
|
|
begin;
|
|
insert into t1 (a, b) values (6, 6);
|
|
handler t1 open;
|
|
handler t1 read a last;
|
|
a b
|
|
6 6
|
|
insert into t1 (a, b) values (7, 7);
|
|
handler t1 read a last;
|
|
a b
|
|
7 7
|
|
commit;
|
|
# -> connection con1
|
|
# Demonstrate that the HANDLER doesn't hold MDL_SHARED_WRITE.
|
|
lock table t1 write;
|
|
unlock tables;
|
|
# -> connection default
|
|
handler t1 read a prev;
|
|
a b
|
|
6 6
|
|
handler t1 close;
|
|
# Cleanup.
|
|
drop table t1;
|
|
# -> connection con1
|
|
# -> connection default
|
|
#
|
|
# A test for Bug#50555 "handler commands crash server in
|
|
# my_hash_first()".
|
|
#
|
|
handler no_such_table read no_such_index first;
|
|
ERROR 42S02: Unknown table 'no_such_table' in HANDLER
|
|
handler no_such_table close;
|
|
ERROR 42S02: Unknown table 'no_such_table' in HANDLER
|