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c982924242
Compressed blob columns didn't accept data at their capacity. E.g. storing 255 bytes to TINYBLOB results in "Data too long" error. Now it is allowed assuming compression method was able to produce shorter string (so that both metadata and compressed data fits blob) and column_compression_threshold is lower than blob. If no compression was performed, we still have to reserve additional byte for metadata and thus we perform normal data truncation and return it's status.
173 lines
4.9 KiB
Plaintext
173 lines
4.9 KiB
Plaintext
--source include/have_innodb.inc
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--source include/have_csv.inc
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let $MYSQLD_DATADIR= `select @@datadir`;
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SET column_compression_zlib_wrap=true;
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let $typec= BLOB COMPRESSED;
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let $typeu= BLOB;
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--source column_compression.inc
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let $typec= TEXT COMPRESSED;
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let $typeu= TEXT;
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--source column_compression.inc
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let $typec= VARBINARY(10000) COMPRESSED;
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let $typeu= VARBINARY(10000);
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--source column_compression.inc
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let $typec= VARCHAR(10000) COMPRESSED;
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let $typeu= VARCHAR(10000);
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--source column_compression.inc
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let $typec= TEXT CHARSET ucs2 COMPRESSED;
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let $typeu= TEXT;
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--source column_compression.inc
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SET column_compression_zlib_wrap=DEFAULT;
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let $typec= BLOB COMPRESSED;
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let $typeu= BLOB;
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--source column_compression.inc
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--error ER_WRONG_FIELD_SPEC
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CREATE TABLE t1(a CHAR(100) COMPRESSED);
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--error ER_WRONG_FIELD_SPEC
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CREATE TABLE t1(a INT COMPRESSED);
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--error ER_UNKNOWN_COMPRESSION_METHOD
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CREATE TABLE t1(a BLOB COMPRESSED=unknown);
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CREATE TABLE t1(a BLOB COMPRESSED COMPRESSED);
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DROP TABLE t1;
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CREATE TABLE t1(a INT);
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--error ER_WRONG_FIELD_SPEC
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ALTER TABLE t1 MODIFY a INT COMPRESSED;
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DROP TABLE t1;
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--echo # Test CSV
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CREATE TABLE t1(a BLOB NOT NULL COMPRESSED) ENGINE=CSV;
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INSERT INTO t1 VALUES(REPEAT('a', 110));
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SELECT LENGTH(a) FROM t1;
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ALTER TABLE t1 ENGINE=MyISAM;
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SELECT LENGTH(a) FROM t1;
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ALTER TABLE t1 ENGINE=CSV;
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SELECT LENGTH(a) FROM t1;
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SHOW CREATE TABLE t1;
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--cat_file $MYSQLD_DATADIR/test/t1.CSV
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DROP TABLE t1;
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--echo # Test fields that don't fit data
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CREATE TABLE t1(a VARCHAR(9) COMPRESSED);
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES(REPEAT('a', 10));
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INSERT INTO t1 VALUES(REPEAT(' ', 10));
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SELECT a, LENGTH(a) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1(a TINYTEXT COMPRESSED);
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SET column_compression_threshold=300;
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INSERT INTO t1 VALUES(REPEAT('a', 254));
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INSERT INTO t1 VALUES(REPEAT(' ', 254));
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES(REPEAT('a', 255));
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INSERT INTO t1 VALUES(REPEAT(' ', 255));
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES(REPEAT('a', 256));
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INSERT INTO t1 VALUES(REPEAT(' ', 256));
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES(REPEAT('a', 257));
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INSERT INTO t1 VALUES(REPEAT(' ', 257));
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SET column_compression_threshold=DEFAULT;
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SELECT LEFT(a, 10), LENGTH(a) FROM t1 ORDER BY 1;
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DROP TABLE t1;
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--echo # Corner case: VARCHAR(255) COMPRESSED must have 2 bytes pack length
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CREATE TABLE t1(a VARCHAR(255) COMPRESSED);
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SHOW CREATE TABLE t1;
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SET column_compression_threshold=300;
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INSERT INTO t1 VALUES(REPEAT('a', 255));
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SET column_compression_threshold=DEFAULT;
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SELECT a, LENGTH(a) FROM t1;
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DROP TABLE t1;
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CREATE TABLE t1(a VARCHAR(65531) COMPRESSED);
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SET column_compression_threshold=65537;
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INSERT INTO t1 VALUES(REPEAT('a', 65530));
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INSERT INTO t1 VALUES(REPEAT(' ', 65530));
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INSERT INTO t1 VALUES(REPEAT('a', 65531));
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INSERT INTO t1 VALUES(REPEAT(' ', 65531));
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES(REPEAT('a', 65532));
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INSERT INTO t1 VALUES(REPEAT(' ', 65532));
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES(REPEAT('a', 65533));
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INSERT INTO t1 VALUES(REPEAT(' ', 65533));
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SET column_compression_threshold=DEFAULT;
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SELECT LEFT(a, 10), LENGTH(a) FROM t1 ORDER BY 1, 2;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-14929 - AddressSanitizer: memcpy-param-overlap in
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--echo # Field_longstr::compress
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--echo #
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CREATE TABLE t1(b BLOB COMPRESSED);
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INSERT INTO t1 VALUES('foo'),('bar');
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SET SESSION optimizer_switch = 'derived_merge=off';
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SELECT * FROM ( SELECT * FROM t1 ) AS sq ORDER BY b;
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SET SESSION optimizer_switch=DEFAULT;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-15762 - VARCHAR(0) COMPRESSED crashes the server
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--echo #
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CREATE TABLE t1(a VARCHAR(0) COMPRESSED);
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--error ER_DATA_TOO_LONG
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INSERT INTO t1 VALUES('a');
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INSERT INTO t1 VALUES(' ');
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SELECT LENGTH(a) FROM t1;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-15763 - VARCHAR(1) COMPRESSED crashes the server
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--echo #
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CREATE TABLE t1(a VARCHAR(1) COMPRESSED);
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SET column_compression_threshold=0;
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INSERT INTO t1 VALUES('a');
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SET column_compression_threshold=DEFAULT;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-15938 - TINYTEXT CHARACTER SET utf8 COMPRESSED truncates data
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--echo #
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CREATE TABLE t1(a TINYTEXT COMPRESSED, b TINYTEXT) CHARACTER SET utf8;
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INSERT INTO t1 VALUES (REPEAT(_latin1'a', 254), REPEAT(_latin1'a', 254));
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SELECT CHAR_LENGTH(a), CHAR_LENGTH(b), LEFT(a, 10), LEFT(b, 10) FROM t1;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-16134 Wrong I_S.COLUMNS.CHARACTER_XXX_LENGTH value for compressed columns
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--echo #
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CREATE TABLE t1
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(
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a VARCHAR(10) CHARACTER SET latin1 COMPRESSED,
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b VARCHAR(10) CHARACTER SET utf8 COMPRESSED
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);
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SELECT COLUMN_NAME, CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1' AND COLUMN_NAME IN ('a','b')
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ORDER BY COLUMN_NAME;
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DROP TABLE t1;
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--echo #
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--echo # MDEV-15592 - Column COMPRESSED should select a 'high order' datatype
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--echo #
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CREATE TABLE t1(a TINYTEXT COMPRESSED);
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INSERT INTO t1 VALUES(REPEAT('a', 255));
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SELECT LEFT(a, 10), LENGTH(a) FROM t1;
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DROP TABLE t1;
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