39 lines
1.6 KiB
Plaintext
39 lines
1.6 KiB
Plaintext
#Test for Shared, GAP locks
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drop table if exists t1_s_gap;
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drop table if exists t2_s_gap;
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use test;
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create table t1_s_gap (col1 int primary key);
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create table t2_s_gap (col1 int primary key, col2 int not null, foreign key(col2) references t1_s_gap(col1));
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insert into t1_s_gap values (10),(20),(30),(40);
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start transaction;
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insert into t2_s_gap values (1, 25);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2_s_gap`, CONSTRAINT `t2_s_gap_ibfk_1` FOREIGN KEY (`col2`) REFERENCES `t1_s_gap` (`col1`))
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use performance_schema;
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select object_schema, object_name, lock_type, lock_mode, lock_status, lock_data
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from data_locks
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where object_name in ('t1_s_gap', 't2_s_gap')
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order by object_name, lock_type, lock_mode, lock_status, lock_data;
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object_schema object_name lock_type lock_mode lock_status lock_data
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test t1_s_gap RECORD S,GAP GRANTED 30
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test t1_s_gap TABLE IS GRANTED NULL
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test t2_s_gap RECORD X GRANTED supremum pseudo-record
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test t2_s_gap TABLE IX GRANTED NULL
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start transaction;
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insert into t1_s_gap values (25);
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use performance_schema;
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select object_schema, object_name, lock_type, lock_mode, lock_status, lock_data
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from data_locks
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where object_name in ('t1_s_gap', 't2_s_gap')
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order by object_name, lock_type, lock_mode, lock_status, lock_data;
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object_schema object_name lock_type lock_mode lock_status lock_data
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test t1_s_gap RECORD S,GAP GRANTED 30
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test t1_s_gap RECORD X,GAP,INSERT_INTENTION WAITING 30
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test t1_s_gap TABLE IS GRANTED NULL
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test t1_s_gap TABLE IX GRANTED NULL
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test t2_s_gap RECORD X GRANTED supremum pseudo-record
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test t2_s_gap TABLE IX GRANTED NULL
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commit;
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commit;
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drop table t2_s_gap;
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drop table t1_s_gap;
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