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6cb84346e1
it's incorrect to use change_item_tree() to replace arguments of top-level AND/OR, because they (arguments) are stored in a List, so a pointer to an argument is in the list_node, and individual list_node's of top-level AND/OR can be deleted in Item_cond::build_equal_items(). In that case rollback_item_tree_changes() will modify the deleted object. Luckily, it's not needed to use change_item_tree() for top-level AND/OR, because the whole top-level item is copied and preserved in prep_where and prep_on, and restored from there. So, just don't. Additionally to the test case in the commit it fixes * ASAN failure of main.opt_tvc --ps * ASAN failure of main.having_cond_pushdown --ps
82 lines
1.9 KiB
Text
82 lines
1.9 KiB
Text
PREPARE stmt1 FROM "
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SELECT table_name FROM information_schema.tables
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WHERE table_name = 't1_first'
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UNION ALL
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SELECT table_name FROM information_schema.tables
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WHERE table_name = 't1_second'";
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execute stmt1;
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table_name
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execute stmt1;
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table_name
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create or replace table t1 (a int primary key, table_name char(40));
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insert into t1 values(1,"t1_first");
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insert into t1 values(2,"t1_second");
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PREPARE stmt2 FROM "
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SELECT table_name FROM t1
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WHERE table_name = 't1_first'
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UNION ALL
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SELECT table_name FROM t1
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WHERE table_name = 't1_second'";
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execute stmt2;
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table_name
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t1_first
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t1_second
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execute stmt2;
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table_name
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t1_first
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t1_second
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flush tables;
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execute stmt2;
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table_name
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t1_first
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t1_second
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alter table t1 add column b int;
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execute stmt2;
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table_name
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t1_first
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t1_second
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execute stmt2;
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table_name
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t1_first
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t1_second
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drop table t1;
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execute stmt2;
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ERROR 42S02: Table 'test.t1' doesn't exist
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create or replace table t1 (a int primary key, table_name char(40));
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insert into t1 values(1,"t1_first");
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execute stmt2;
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table_name
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t1_first
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deallocate prepare stmt1;
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deallocate prepare stmt2;
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drop table t1;
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#
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# MDEV-25808 PREPARE/EXECUTE makes signed integer out of unsigned
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#
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prepare p1 from 'select concat(?)';
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execute p1 using 17864960750176564435;
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concat(?)
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17864960750176564435
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prepare p1 from 'select SQRT(?) is not null';
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execute p1 using 17864960750176564435;
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SQRT(?) is not null
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1
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#
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# End of 10.3 tests
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#
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#
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# MDEV-17869 AddressSanitizer: use-after-poison in Item_change_list::rollback_item_tree_changes
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#
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create table t1 (pk int, v1 varchar(1));
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insert t1 values (1,'v'),(2,'v'),(3,'c');
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create table t2 (pk int, v1 varchar(1));
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insert t2 values (1,'x');
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create table t3 (pk int, i1 int, v1 varchar(1));
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insert t3 values (10,8,9);
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execute immediate 'select straight_join 1 from (t1 join t2 on (t1.v1 = t2.v1))
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where (3, 6) in (select tc.pk, t3.i1 from (t3 join t1 as tc on (tc.v1 = t3.v1)) having tc.pk > 1 );';
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1
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drop table t1, t2, t3;
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#
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# End of 10.4 tests
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#
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