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- InnoDB reserves the free extents unnecessarily during blob page allocation even though btr_page_alloc() can handle reserving the extent when the existing ran out of pages to be used.
21 lines
617 B
Plaintext
21 lines
617 B
Plaintext
#
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# Bug #21950389 SMALL TABLESPACES WITH BLOBS TAKE UP TO 80 TIMES MORE
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# SPACE IN 5.7 THAN IN 5.6
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#
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CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
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# bytes: 65536
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INSERT INTO t1 SELECT * FROM seq_1_to_25000;
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# bytes: 9437184
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DROP TABLE t1;
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CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB) ENGINE=InnoDB;
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# bytes: 65536
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INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
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# bytes: 2097152
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DROP TABLE t1;
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CREATE TABLE t1 (a INT PRIMARY KEY, b BLOB)
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ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1;
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# bytes: 65536
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INSERT INTO t1 SELECT seq,REPEAT('a',30000) FROM seq_1_to_20;
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# bytes: 65536
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DROP TABLE t1;
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