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111 lines
5.6 KiB
Text
111 lines
5.6 KiB
Text
SET @save_innodb_stats_persistent = @@GLOBAL.innodb_stats_persistent;
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SET GLOBAL innodb_stats_persistent = OFF;
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SET @save_innodb_compression_level = @@global.innodb_compression_level;
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SET global innodb_compression_level=0;
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#create table with 1K block size
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CREATE TABLE tab5 (col_1 CHAR (255) ,
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col_2 VARCHAR (121), col_3 longtext,
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col_4 longtext,col_5 longtext,
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col_6 longtext , col_7 longtext ,
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col_8 longtext ,col_9 longtext ,
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col_10 longtext ,col_11 int auto_increment primary key)
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ENGINE = innodb ROW_FORMAT=compressed key_block_size=1;
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#create indexes
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CREATE INDEX idx1 ON tab5(col_4(10));
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CREATE INDEX idx2 ON tab5(col_5(10));
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CREATE INDEX idx3 ON tab5(col_6(10));
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CREATE INDEX idx4 ON tab5(col_7(10));
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CREATE INDEX idx5 ON tab5(col_8(10));
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CREATE INDEX idx6 ON tab5(col_11);
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#load the with repeat function
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SET @col_1 = repeat('a', 100);
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SET @col_2 = repeat('b', 100);
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SET @col_3 = repeat('c', 100);
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SET @col_4 = repeat('d', 100);
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SET @col_5 = repeat('e', 100);
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SET @col_6 = repeat('f', 100);
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SET @col_7 = repeat('g', 100);
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SET @col_8 = repeat('h', 100);
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SET @col_9 = repeat('i', 100);
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SET @col_10 = repeat('j', 100);
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#insert 10 records
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BEGIN;
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab5(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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COMMIT;
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#set the compression level=9 (High compress)
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SET global innodb_compression_level=9;
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#create table with 1K block size
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CREATE TABLE tab6 (col_1 CHAR (255) ,
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col_2 VARCHAR (121), col_3 longtext,
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col_4 longtext,col_5 longtext,
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col_6 longtext , col_7 longtext ,
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col_8 longtext ,col_9 longtext ,
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col_10 longtext ,col_11 int auto_increment primary key)
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ENGINE = innodb ROW_FORMAT=compressed key_block_size=1;
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#create indexes
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CREATE INDEX idx1 ON tab6(col_4(10));
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CREATE INDEX idx2 ON tab6(col_5(10));
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CREATE INDEX idx3 ON tab6(col_6(10));
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CREATE INDEX idx4 ON tab6(col_7(10));
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CREATE INDEX idx5 ON tab6(col_8(10));
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CREATE INDEX idx6 ON tab6(col_11);
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#insert 10 records
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BEGIN;
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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INSERT INTO tab6(col_1,col_2,col_3,col_4,col_5,col_6,col_7,col_8,col_9,col_10)
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VALUES (@col_1,@col_2,@col_3,@col_4,@cl_5,@col_6,@col_7,@col_8,@col_9,@col_10);
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COMMIT;
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#diff the sizes of the No compressed table and high compressed table
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SET @size=(SELECT
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(SELECT (SUM(DATA_LENGTH+INDEX_LENGTH)/1024/1024)
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FROM INFORMATION_SCHEMA.TABLES
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WHERE table_name='tab5' AND ENGINE='InnoDB' AND table_schema='test')
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-
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(SELECT SUM(DATA_LENGTH+INDEX_LENGTH)/1024/1024
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FROM INFORMATION_SCHEMA.TABLES
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WHERE table_name='tab6' AND ENGINE='InnoDB' AND table_schema='test')
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FROM DUAL);
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#check the size of the table, it should not be Negative value
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#The results of this query Test pass = 1 and fail=0
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SELECT @size >= 0;
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@size >= 0
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1
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DROP TABLE tab5, tab6;
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SET GLOBAL innodb_compression_level = @save_innodb_compression_level;
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SET GLOBAL innodb_stats_persistent = @save_innodb_stats_persistent;
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