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db7edfed17
MDEV-10134 Add full support for DEFAULT - Added support for using tables with MySQL 5.7 virtual fields, including MySQL 5.7 syntax - Better error messages also for old cases - CREATE ... SELECT now also updates timestamp columns - Blob can now have default values - Added new system variable "check_constraint_checks", to turn of CHECK constraint checking if needed. - Removed some engine independent tests in suite vcol to only test myisam - Moved some tests from 'include' to 't'. Should some day be done for all tests. - FRM version increased to 11 if one uses virtual fields or constraints - Changed to use a bitmap to check if a field has got a value, instead of setting HAS_EXPLICIT_VALUE bit in field flags - Expressions can now be up to 65K in total - Ensure we are not refering to uninitialized fields when handling virtual fields or defaults - Changed check_vcol_func_processor() to return a bitmap of used types - Had to change some functions that calculated cached value in fix_fields to do this in val() or getdate() instead. - store_now_in_TIME() now takes a THD argument - fill_record() now updates default values - Add a lookahead for NOT NULL, to be able to handle DEFAULT 1+1 NOT NULL - Automatically generate a name for constraints that doesn't have a name - Added support for ALTER TABLE DROP CONSTRAINT - Ensure that partition functions register virtual fields used. This fixes some bugs when using virtual fields in a partitioning function
55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
#
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# Check of check constraints
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set @save_check_constraint=@@check_constraint_checks;
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create table t1 (a int check(a>10), b int check (b > 20), constraint `min` check (a+b > 100), constraint `max` check (a+b <500)) engine=myisam;
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show create table t1;
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insert into t1 values (100,100);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (1,1);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (20,1);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (20,30);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (500,500);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values (101,101),(102,102),(600,600),(103,103);
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select * from t1;
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truncate table t1;
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insert ignore into t1 values (101,101),(102,102),(600,600),(103,103);
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select * from t1;
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set check_constraint_checks=0;
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truncate table t1;
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insert into t1 values (101,101),(102,102),(600,600),(103,103);
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select * from t1;
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set check_constraint_checks=@save_check_constraint;
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--replace_regex /failed for.*/failed for table/
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--error ER_CONSTRAINT_FAILED
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alter table t1 add c int default 0 check (c < 10);
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set check_constraint_checks=0;
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alter table t1 add c int default 0 check (c < 10);
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alter table t1 add check (a+b+c < 500);
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set check_constraint_checks=@save_check_constraint;
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show create table t1;
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--error ER_CONSTRAINT_FAILED
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insert into t1 values(105,105,105);
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--error ER_CONSTRAINT_FAILED
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insert into t1 values(249,249,9);
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insert into t1 values(105,105,9);
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select * from t1;
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create table t2 like t1;
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show create table t2;
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--error ER_CANT_DROP_FIELD_OR_KEY
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alter table t2 drop constraint c;
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alter table t2 drop constraint min;
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show create table t2;
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drop table t1,t2;
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