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186e3ee534
Before this fix, the command SHOW ENGINE <name> STATUS would: - print a warning if the engine name is unknown, - proceed and implement the same behavior as SHOW ENGINE ALL STATUS, and list the status of all the storage engines registered. In particular, this behavior caused confusion about the command : SHOW ENGINE MUTEX STATUS, which as a side effect would print the status of the innodb engine when that engine is registered. Also, before this fix, every time an unknown engine name was substituted by the default engine (which happen unless SQL_MODE NO_ENGINE_SUBSTITUTION is set), a malformed warning was raised. For example, the command ALTER TABLE T1 ENGINE = X would print : Warnings: Error 1286 Unknown table engine 'X' With this fix: SHOW ENGINE <name> STATUS|LOGS|MUTEX always fails with an error when the engine <name> is unknown. For other commands, warnings about unknown engines are raised as: Warnings: Warning 1286 Unknown table engine 'X' In other words, engine substitution never affect the SHOW ENGINE command, since this would lead to very confusing results. mysql-test/r/ndb_dd_basic.result: Warnings for unknown engines. mysql-test/r/partition_innodb.result: Warnings for unknown engines. mysql-test/r/ps_1general.result: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX mysql-test/r/show_check.result: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX mysql-test/t/ps_1general.test: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX mysql-test/t/show_check.test: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX sql/sql_yacc.yy: Fixed SHOW ENGINE <name> STATUS|LOGS|MUTEX
76 lines
3.6 KiB
Text
76 lines
3.6 KiB
Text
create table t1 (a int) engine=innodb partition by hash(a) ;
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show table status like 't1';
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Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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t1 InnoDB 10 Compact 2 8192 16384 0 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL partitioned
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drop table t1;
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create table t1 (a int)
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engine = innodb
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partition by key (a);
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show table status;
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Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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t1 InnoDB 10 Compact 2 8192 16384 0 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL partitioned
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insert into t1 values (0), (1), (2), (3);
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show table status;
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Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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t1 InnoDB 10 Compact 4 4096 16384 0 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL partitioned
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drop table t1;
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create table t1 (a int auto_increment primary key)
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engine = innodb
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partition by key (a);
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show table status;
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Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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t1 InnoDB 10 Compact 2 8192 16384 0 0 0 1 NULL NULL NULL latin1_swedish_ci NULL partitioned
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insert into t1 values (NULL), (NULL), (NULL), (NULL);
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show table status;
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Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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t1 InnoDB 10 Compact 4 4096 16384 0 0 0 5 NULL NULL NULL latin1_swedish_ci NULL partitioned
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insert into t1 values (NULL), (NULL), (NULL), (NULL);
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show table status;
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Name Engine Version Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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t1 InnoDB 10 Compact 8 2048 16384 0 0 0 9 NULL NULL NULL latin1_swedish_ci NULL partitioned
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drop table t1;
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create table t1 (a int)
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partition by key (a)
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(partition p1 engine = innodb);
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alter table t1 rebuild partition p1;
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alter table t1 rebuild partition p1;
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alter table t1 rebuild partition p1;
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alter table t1 rebuild partition p1;
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alter table t1 rebuild partition p1;
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alter table t1 rebuild partition p1;
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alter table t1 rebuild partition p1;
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drop table t1;
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create table t1 (a date)
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engine = innodb
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partition by range (year(a))
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(partition p0 values less than (2006),
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partition p1 values less than (2007));
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explain partitions select * from t1
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where a between '2006-01-01' and '2007-06-01';
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id select_type table partitions type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 p1 ALL NULL NULL NULL NULL 2 Using where
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drop table t1;
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create table t1 (a int)
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engine = x
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partition by key (a);
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Warnings:
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Warning 1286 Unknown table engine 'x'
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1 /*!50100 PARTITION BY KEY (a) */
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drop table t1;
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create table t1 (a int)
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engine = innodb
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partition by list (a)
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(partition p0 values in (0));
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alter table t1 engine = x;
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Warnings:
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Warning 1286 Unknown table engine 'x'
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 /*!50100 PARTITION BY LIST (a) (PARTITION p0 VALUES IN (0) ENGINE = InnoDB) */
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drop table t1;
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