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dc64ba2187
Auto-generate the allowed list of values for enum/set/flagset options in --help output. But don't do that when the help text already has them. Also, remove lists of values from help strings of various options, where they were simply listed without any additional information.
88 lines
3.2 KiB
Plaintext
88 lines
3.2 KiB
Plaintext
'#--------------------FN_DYNVARS_097_01-------------------------#'
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SET @start_value = @@global.myisam_stats_method;
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SET @@global.myisam_stats_method = nulls_equal;
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'connect (con1,localhost,root,,,,)'
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'connection con1'
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SELECT @@global.myisam_stats_method;
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@@global.myisam_stats_method
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NULLS_EQUAL
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SELECT @@session.myisam_stats_method;
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@@session.myisam_stats_method
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NULLS_EQUAL
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'#--------------------FN_DYNVARS_097_02-------------------------#'
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'connection default'
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (a INT, KEY (a));
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INSERT INTO t1 VALUES (0),(1),(2),(3),(4);
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INSERT INTO t1 SELECT NULL FROM t1;
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'default: NULLs considered unequal'
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SET myisam_stats_method = nulls_unequal;
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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SHOW INDEX 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
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t1 1 a 1 a A 10 NULL NULL YES BTREE
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INSERT INTO t1 VALUES (11);
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DELETE FROM t1 WHERE a = 11;
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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SHOW INDEX 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
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t1 1 a 1 a A 10 NULL NULL YES BTREE
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'Set nulls to be equal'
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SET myisam_stats_method = nulls_equal;
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INSERT INTO t1 VALUES (11);
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DELETE FROM t1 WHERE a = 11;
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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SHOW INDEX 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
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t1 1 a 1 a A 5 NULL NULL YES BTREE
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INSERT INTO t1 VALUES (11);
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DELETE FROM t1 WHERE a = 11;
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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SHOW INDEX 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
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t1 1 a 1 a A 5 NULL NULL YES BTREE
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'Set nulls to be ignored'
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SET myisam_stats_method = nulls_ignored;
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SHOW VARIABLES LIKE 'myisam_stats_method';
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Variable_name Value
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myisam_stats_method NULLS_IGNORED
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DROP TABLE t1;
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CREATE TABLE t1 (
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a CHAR(3), b CHAR(4), c CHAR(5), d CHAR(6),
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KEY(a,b,c,d)
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);
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INSERT INTO t1 VALUES ('bcd','def1', NULL, 'zz');
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INSERT INTO t1 VALUES ('bcd','def2', NULL, 'zz');
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INSERT INTO t1 VALUES ('bce','def1', 'yuu', NULL);
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INSERT INTO t1 VALUES ('bce','def2', NULL, 'quux');
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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SHOW INDEX 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
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t1 1 a 1 a A 2 NULL NULL YES BTREE
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t1 1 a 2 b A 4 NULL NULL YES BTREE
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t1 1 a 3 c A 4 NULL NULL YES BTREE
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t1 1 a 4 d A 4 NULL NULL YES BTREE
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DELETE FROM t1;
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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SHOW INDEX 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
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t1 1 a 1 a A 0 NULL NULL YES BTREE
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t1 1 a 2 b A 0 NULL NULL YES BTREE
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t1 1 a 3 c A 0 NULL NULL YES BTREE
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t1 1 a 4 d A 0 NULL NULL YES BTREE
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SET myisam_stats_method = DEFAULT;
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DROP TABLE t1;
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SET @@global.myisam_stats_method= @start_value;
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