131 lines
3.7 KiB
Plaintext
131 lines
3.7 KiB
Plaintext
--source include/have_debug.inc
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--source include/count_sessions.inc
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--source include/have_innodb_max_16k.inc
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--echo #
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--echo # Bug #27624990 ASSERTION `FALSE' FAILED AT BOOL WRAPPER_TO_STRING() IN SQL/JSON_DOM.CC
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--echo #
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--echo #
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--echo # Scenario 1: The row format is DYNAMIC (no blob prefix). The READ
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--echo # UNCOMMITTED transaction will see the new value of column f1 but
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--echo # old value of column f2.
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--echo #
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create table t1 (f1 int, f2 longblob) row_format=dynamic;
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show create table t1;
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insert into t1 values (1, repeat('x', 40000));
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SET DEBUG_SYNC = 'blob_write_middle SIGNAL do_select WAIT_FOR continue_insert';
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--send update t1 set f1 = 2, f2 = repeat('y', 100000) where f1 = 1;
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connect (con1,localhost,root,,);
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SET DEBUG_SYNC = 'now WAIT_FOR do_select';
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SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
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begin;
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select f1, f2 from t1;
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commit;
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SET DEBUG_SYNC = 'now SIGNAL continue_insert';
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connection default;
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--reap
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disconnect con1;
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drop table t1;
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--source include/wait_until_count_sessions.inc
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--echo #
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--echo # Scenario 2: The row format is REDUNDANT (no blob prefix). The READ
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--echo # UNCOMMITTED transaction will see only the local prefix of f2.
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--echo #
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create table t1 (f1 int primary key, f2 longblob) row_format=redundant;
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show create table t1;
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insert into t1 values (1, repeat('x', 40000));
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SET DEBUG_SYNC = 'blob_write_middle SIGNAL do_select WAIT_FOR continue_insert EXECUTE 2';
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--send update t1 set f2 = repeat('y', 100000) where f1 = 1;
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connect (con1,localhost,root,,);
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SET DEBUG_SYNC = 'now WAIT_FOR do_select';
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SET DEBUG_SYNC = 'now SIGNAL continue_insert';
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SET DEBUG_SYNC = 'now WAIT_FOR do_select';
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SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
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begin;
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select length(f2) from t1 where f1 = 1;
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commit;
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SET DEBUG_SYNC = 'now SIGNAL continue_insert';
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connection default;
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--reap
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disconnect con1;
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drop table t1;
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--source include/wait_until_count_sessions.inc
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--echo #
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--echo # Scenario 3: The row format is REDUNDANT (no blob prefix). The READ
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--echo # UNCOMMITTED transaction will see the local prefix of new blob and
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--echo # the external part of the old blob.
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--echo #
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create table t1 (f1 int primary key, f2 longblob) row_format=redundant;
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show create table t1;
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insert into t1 values (1, repeat('x', 40000));
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SET DEBUG_SYNC = 'blob_write_middle SIGNAL do_select WAIT_FOR continue_insert';
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--send update t1 set f2 = repeat('y', 100000) where f1 = 1;
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connect (con1,localhost,root,,);
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SET DEBUG_SYNC = 'now WAIT_FOR do_select';
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SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
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begin;
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select f2 from t1 where f1 = 1;
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commit;
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SET DEBUG_SYNC = 'now SIGNAL continue_insert';
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connection default;
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--reap
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disconnect con1;
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drop table t1;
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--source include/wait_until_count_sessions.inc
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--echo #
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--echo # Scenario 4: The row format is REDUNDANT (no blob prefix).
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--echo # The READ UNCOMMITTED transaction will see the local prefix
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--echo # of new blob and external part of old blob. It is different
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--echo # from Scenario 3 because this involves blob operation code
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--echo # OPCODE_INSERT_UPDATE.
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--echo #
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create table t1 (f1 int primary key, f2 longblob) row_format=redundant;
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show create table t1;
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start transaction;
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insert into t1 values (1, repeat('x', 40000));
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delete from t1 where f1 = 1;
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SET DEBUG_SYNC = 'blob_write_middle SIGNAL do_select WAIT_FOR continue_insert';
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--send insert into t1 values (1, repeat('y', 40000));
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connect (con1,localhost,root,,);
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SET DEBUG_SYNC = 'now WAIT_FOR do_select';
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SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
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begin;
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select f2 from t1 where f1 = 1;
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commit;
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SET DEBUG_SYNC = 'now SIGNAL continue_insert';
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connection default;
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--reap
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commit;
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disconnect con1;
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drop table t1;
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--source include/wait_until_count_sessions.inc
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