49 lines
2.6 KiB
Plaintext
49 lines
2.6 KiB
Plaintext
#########################################################
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# WL#6599: New data dictionary and I_S.
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#
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# The re-implemntation of I_S as views on top of DD tables,
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# together with the modified way of retrieving statistics
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# information, introduces some differences when comparing
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# with the previous I_S implementation. The purpose of this
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# test is to focus on these behavioral differences, both
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# for the purpose of regression testing, and to document
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# the changes. The issues below refer to the items listed
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# in the WL#6599 text (HLS section 6).
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#########################################################
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# WL#6599 HLS/6m
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# MySQL 'DISABLE KEYS' functionality is only applicable to MyISAM
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# tables, but looks like its marked for InnoDB table too in trunk.
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# This problem is fixed now. It has been discussed with Martin Hansson
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# who worked on WL8697 which introduced invisible index. He agreed that
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# the behavior on trunk is bad and needed to be fixed. We have fixed
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# that now.
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#########################################################
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CREATE TABLE t1 ( a INT, KEY (a) INVISIBLE );
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CREATE TABLE t2 ( a INT, KEY (a) INVISIBLE ) ENGINE=MyISAM;
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SHOW KEYS FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Visible Expression
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t1 1 a 1 a A NULL NULL NULL YES BTREE NO NULL
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SHOW KEYS FROM t2;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Visible Expression
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t2 1 a 1 a A NULL NULL NULL YES BTREE NO NULL
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CREATE TABLE t3 ( a INT, KEY (a));
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SHOW KEYS FROM t3;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Visible Expression
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t3 1 a 1 a A NULL NULL NULL YES BTREE YES NULL
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ALTER TABLE t3 ALTER INDEX a INVISIBLE;
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SHOW KEYS FROM t3;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Visible Expression
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t3 1 a 1 a A NULL NULL NULL YES BTREE NO NULL
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CREATE TABLE t4 ( a INT, KEY (a)) ENGINE=MyISAM;
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SHOW KEYS FROM t4;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Visible Expression
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t4 1 a 1 a A NULL NULL NULL YES BTREE YES NULL
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ALTER TABLE t4 ALTER INDEX a INVISIBLE;
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SHOW KEYS FROM t4;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Visible Expression
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t4 1 a 1 a A NULL NULL NULL YES BTREE NO NULL
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DROP TABLE t1;
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DROP TABLE t2;
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DROP TABLE t3;
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DROP TABLE t4;
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