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Fix for bug #14693 (ALTER COLUMN SET DEFAULT has no effect)

Browse source 
mysql-test/r/alter_table.result:
  test result
mysql-test/t/alter_table.test:
  test case
sql/sql_table.cc:
  we should set the flag with the ALTER requirements
This commit is contained in:
unknown 2005-11-24 20:24:45 +04:00
parent 97bfd41fe1
commit ae2dc30930
3 changed files with 19 additions and 1 deletions
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6
mysql-test/r/alter_table.result
View file

@ -556,3 +556,9 @@ ERROR 3D000: No database selected
alter table test.t1 rename test.t1;
use test;
drop table t1;
create table t1 (mycol int(10) not null);
alter table t1 alter column mycol set default 0;
desc t1;
Field Type Null Key Default Extra
mycol int(10) NO 0
drop table t1;

9
mysql-test/t/alter_table.test
View file

@ -401,3 +401,12 @@ use test;
drop table t1;
# End of 4.1 tests
#
# Bug #14693 (ALTER SET DEFAULT doesn't work)
#
create table t1 (mycol int(10) not null);
alter table t1 alter column mycol set default 0;
desc t1;
drop table t1;

5
sql/sql_table.cc
View file

@ -3379,7 +3379,10 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
my_error(ER_BLOB_CANT_HAVE_DEFAULT, MYF(0), def->change);
DBUG_RETURN(TRUE);
}
def->def=alter->def; // Use new default
if ((def->def=alter->def)) // Use new default
def->flags&= ~NO_DEFAULT_VALUE_FLAG;
else
def->flags|= NO_DEFAULT_VALUE_FLAG;
alter_it.remove();
}
}