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Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-4.1-maint

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into  example.com:/work/bug24395-v2/my41


myisam/mi_open.c:
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2006-12-01 23:11:44 +01:00
parent e3a9d94935 a9173ec999
commit 6b9d3ccb8b
4 changed files with 304 additions and 8 deletions
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121
mysql-test/r/alter_table.result
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@ -528,6 +528,127 @@ create table t1 ( a timestamp );
alter table t1 add unique ( a(1) );
ERROR HY000: Incorrect sub part key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique sub keys
drop table t1;
drop table if exists t1;
create table t1 (a int, key(a));
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE
"this used not to disable the index"
alter table t1 modify a int, disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
alter table t1 enable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE
alter table t1 modify a bigint, disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
alter table t1 enable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE
alter table t1 add b char(10), disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
alter table t1 add c decimal(10,2), enable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE
"this however did"
alter table t1 disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
desc t1;
Field Type Null Key Default Extra
a bigint(20) YES MUL NULL
b char(10) YES NULL
c decimal(10,2) YES NULL
alter table t1 add d decimal(15,5);
"The key should still be disabled"
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 1 a 1 a A NULL NULL NULL YES BTREE disabled
drop table t1;
"Now will test with one unique index"
create table t1(a int, b char(10), unique(a));
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
alter table t1 disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
alter table t1 enable keys;
"If no copy on noop change, this won't touch the data file"
"Unique index, no change"
alter table t1 modify a int, disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
"Change the type implying data copy"
"Unique index, no change"
alter table t1 modify a bigint, disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
alter table t1 modify a bigint;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
alter table t1 modify a int;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
drop table t1;
"Now will test with one unique and one non-unique index"
create table t1(a int, b char(10), unique(a), key(b));
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE
alter table t1 disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
alter table t1 enable keys;
"If no copy on noop change, this won't touch the data file"
"The non-unique index will be disabled"
alter table t1 modify a int, disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
alter table t1 enable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE
"Change the type implying data copy"
"The non-unique index will be disabled"
alter table t1 modify a bigint, disable keys;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
"Change again the type, but leave the indexes as_is"
alter table t1 modify a int;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
"Try the same. When data is no copied on similar tables, this is noop"
alter table t1 modify a int;
show indexes from t1;
Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
t1 0 a 1 a A NULL NULL NULL YES BTREE
t1 1 b 1 b A NULL NULL NULL YES BTREE disabled
drop table t1;
create database mysqltest1;
create table t1 (c1 int);
alter table t1 rename mysqltest1.t1;