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Add tables for testing

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Create a tables with 3 million rows to test performance.
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Lunastra 2021-11-30 23:20:50 -08:00
parent a29ac2a030
commit 50bc3aab5f
1 changed files with 32 additions and 0 deletions
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src/dbCode/Bigtable.txt Normal file
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-- Create an uncompressed table with a million or two rows. (3 millions row)
CREATE TABLE big_table AS SELECT * FROM information_schema.columns;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
INSERT INTO big_table SELECT * FROM big_table;
-- How many rows does this has?
SELECT count(*) FROM information_schema.columns;
-- Create a new table that is the same but compressed
CREATE TABLE key_block_size_8 LIKE big_table;
ALTER TABLE key_block_size_8 key_block_size=8 row_format=compressed;
-- Insert 3 millions row into the table to compressed
INSERT INTO key_block_size_8 SELECT * FROM big_table;
commit;
drop table key_block_size_4;
SELECT * FROM information_schema.INNODB_CMP;
SELECT * FROM information_schema.INNODB_CMPMEM;
select count(*) as count_row from big_table;
select count(*) as count_row from key_block_size_8;