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@ -313,3 +313,77 @@ table CREATE TABLE `table` (
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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DROP TABLE `table`;
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SET sql_quote_show_create=ON;
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select @@max_heap_table_size;
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@@max_heap_table_size
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1047552
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CREATE TABLE t1 (
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a int(11) default NULL,
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KEY a TYPE BTREE (a)
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) ENGINE=HEAP;
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CREATE TABLE t2 (
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b int(11) default NULL,
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index(b)
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) ENGINE=HEAP;
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CREATE TABLE t3 (
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a int(11) default NULL,
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b int(11) default NULL,
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KEY a TYPE BTREE (a),
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index(b)
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) ENGINE=HEAP;
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insert into t1 values (1),(2);
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insert into t2 values (1),(2);
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insert into t3 values (1,1),(2,2);
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show table status;
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Name Type 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 HEAP Fixed 2 5 39904 249415 42 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 2 5 39904 249415 39904 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 2 9 33072 248103 22090 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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insert into t1 values (3),(4);
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insert into t2 values (3),(4);
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insert into t3 values (3,3),(4,4);
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show table status;
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Name Type 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 HEAP Fixed 4 5 39904 249415 84 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 4 5 39904 249415 39904 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 4 9 33072 248103 22132 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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insert into t1 values (5);
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insert into t2 values (5);
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insert into t3 values (5,5);
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show table status;
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Name Type 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 HEAP Fixed 5 5 39904 249415 105 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 5 5 39904 249415 39904 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 5 9 33072 248103 22153 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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delete from t1 where a=3;
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delete from t2 where b=3;
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delete from t3 where a=3;
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show table status;
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Name Type 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 HEAP Fixed 4 5 39904 249415 105 5 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 4 5 39904 249415 39904 5 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 4 9 33072 248103 22153 9 NULL NULL NULL NULL latin1_swedish_ci NULL
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delete from t1;
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delete from t2;
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delete from t3;
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show table status;
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Name Type 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 HEAP Fixed 0 5 0 249415 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 0 5 0 249415 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 0 9 0 248103 0 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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insert into t1 values (5);
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insert into t2 values (5);
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insert into t3 values (5,5);
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show table status;
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Name Type 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 HEAP Fixed 1 5 39904 249415 21 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 1 5 39904 249415 39904 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 1 9 33072 248103 22069 0 NULL NULL NULL NULL latin1_swedish_ci NULL
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delete from t1 where a=5;
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delete from t2 where b=5;
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delete from t3 where a=5;
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show table status;
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Name Type 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 HEAP Fixed 0 5 39904 249415 21 5 NULL NULL NULL NULL latin1_swedish_ci NULL
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t2 HEAP Fixed 0 5 39904 249415 39904 5 NULL NULL NULL NULL latin1_swedish_ci NULL
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t3 HEAP Fixed 0 9 33072 248103 22069 9 NULL NULL NULL NULL latin1_swedish_ci NULL
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drop table t1, t2, t3;
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