mariadb/mysql-test/main/column_compression.test

--source include/have_innodb.inc
--source include/have_csv.inc

let $MYSQLD_DATADIR= `select @@datadir`;

SET column_compression_zlib_wrap=true;
let $typec= BLOB COMPRESSED;
let $typeu= BLOB;
--source column_compression.inc

let $typec= TEXT COMPRESSED;
let $typeu= TEXT;
--source column_compression.inc

let $typec= VARBINARY(10000) COMPRESSED;
let $typeu= VARBINARY(10000);
--source column_compression.inc

let $typec= VARCHAR(10000) COMPRESSED;
let $typeu= VARCHAR(10000);
--source column_compression.inc

let $typec= TEXT CHARSET ucs2 COMPRESSED;
let $typeu= TEXT;
--source column_compression.inc

SET column_compression_zlib_wrap=DEFAULT;
let $typec= BLOB COMPRESSED;
let $typeu= BLOB;
--source column_compression.inc

--error ER_WRONG_FIELD_SPEC
CREATE TABLE t1(a CHAR(100) COMPRESSED);
--error ER_WRONG_FIELD_SPEC
CREATE TABLE t1(a INT COMPRESSED);
--error ER_UNKNOWN_COMPRESSION_METHOD
CREATE TABLE t1(a BLOB COMPRESSED=unknown);
CREATE TABLE t1(a BLOB COMPRESSED COMPRESSED);
DROP TABLE t1;
CREATE TABLE t1(a INT);
--error ER_WRONG_FIELD_SPEC
ALTER TABLE t1 MODIFY a INT COMPRESSED;
DROP TABLE t1;

--echo # Test CSV
CREATE TABLE t1(a BLOB NOT NULL COMPRESSED) ENGINE=CSV;
INSERT INTO t1 VALUES(REPEAT('a', 110));
SELECT LENGTH(a) FROM t1;
ALTER TABLE t1 ENGINE=MyISAM;
SELECT LENGTH(a) FROM t1;
ALTER TABLE t1 ENGINE=CSV;
SELECT LENGTH(a) FROM t1;
SHOW CREATE TABLE t1;
--cat_file $MYSQLD_DATADIR/test/t1.CSV
DROP TABLE t1;

--echo # Test fields that don't fit data
CREATE TABLE t1(a VARCHAR(9) COMPRESSED);
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES(REPEAT('a', 10));
INSERT INTO t1 VALUES(REPEAT(' ', 10));
SELECT a, LENGTH(a) FROM t1;
DROP TABLE t1;

CREATE TABLE t1(a TINYTEXT COMPRESSED);
SET column_compression_threshold=300;
INSERT INTO t1 VALUES(REPEAT('a', 254));
INSERT INTO t1 VALUES(REPEAT(' ', 254));
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES(REPEAT('a', 255));
INSERT INTO t1 VALUES(REPEAT(' ', 255));
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES(REPEAT('a', 256));
INSERT INTO t1 VALUES(REPEAT(' ', 256));
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES(REPEAT('a', 257));
INSERT INTO t1 VALUES(REPEAT(' ', 257));
SET column_compression_threshold=DEFAULT;
SELECT LEFT(a, 10), LENGTH(a) FROM t1 ORDER BY 1;
DROP TABLE t1;

--echo # Corner case: VARCHAR(255) COMPRESSED must have 2 bytes pack length
CREATE TABLE t1(a VARCHAR(255) COMPRESSED);
SHOW CREATE TABLE t1;
SET column_compression_threshold=300;
INSERT INTO t1 VALUES(REPEAT('a', 255));
SET column_compression_threshold=DEFAULT;
SELECT a, LENGTH(a) FROM t1;
DROP TABLE t1;

CREATE TABLE t1(a VARCHAR(65531) COMPRESSED);
SET column_compression_threshold=65537;
INSERT INTO t1 VALUES(REPEAT('a', 65530));
INSERT INTO t1 VALUES(REPEAT(' ', 65530));
INSERT INTO t1 VALUES(REPEAT('a', 65531));
INSERT INTO t1 VALUES(REPEAT(' ', 65531));
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES(REPEAT('a', 65532));
INSERT INTO t1 VALUES(REPEAT(' ', 65532));
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES(REPEAT('a', 65533));
INSERT INTO t1 VALUES(REPEAT(' ', 65533));
SET column_compression_threshold=DEFAULT;
SELECT LEFT(a, 10), LENGTH(a) FROM t1 ORDER BY 1, 2;
DROP TABLE t1;


--echo #
--echo # MDEV-14929 - AddressSanitizer: memcpy-param-overlap in
--echo #              Field_longstr::compress
--echo #
CREATE TABLE t1(b BLOB COMPRESSED);
INSERT INTO t1 VALUES('foo'),('bar');
SET SESSION optimizer_switch = 'derived_merge=off';
SELECT * FROM ( SELECT * FROM t1 ) AS sq ORDER BY b;
SET SESSION optimizer_switch=DEFAULT;
DROP TABLE t1;


--echo #
--echo # MDEV-15762 - VARCHAR(0) COMPRESSED crashes the server
--echo #
CREATE TABLE t1(a VARCHAR(0) COMPRESSED);
--error ER_DATA_TOO_LONG
INSERT INTO t1 VALUES('a');
INSERT INTO t1 VALUES(' ');
SELECT LENGTH(a) FROM t1;
DROP TABLE t1;


--echo #
--echo # MDEV-15763 - VARCHAR(1) COMPRESSED crashes the server
--echo #
CREATE TABLE t1(a VARCHAR(1) COMPRESSED);
SET column_compression_threshold=0;
INSERT INTO t1 VALUES('a');
SET column_compression_threshold=DEFAULT;
DROP TABLE t1;


--echo #
--echo # MDEV-15938 - TINYTEXT CHARACTER SET utf8 COMPRESSED truncates data
--echo #
CREATE TABLE t1(a TINYTEXT COMPRESSED, b TINYTEXT) CHARACTER SET utf8;
INSERT INTO t1 VALUES (REPEAT(_latin1'a', 254), REPEAT(_latin1'a', 254));
SELECT CHAR_LENGTH(a), CHAR_LENGTH(b), LEFT(a, 10), LEFT(b, 10) FROM t1;
DROP TABLE t1;


--echo #
--echo # MDEV-16134 Wrong I_S.COLUMNS.CHARACTER_XXX_LENGTH value for compressed columns
--echo #

CREATE TABLE t1
(
  a VARCHAR(10) CHARACTER SET latin1 COMPRESSED,
  b VARCHAR(10) CHARACTER SET utf8 COMPRESSED
);
SELECT COLUMN_NAME, CHARACTER_MAXIMUM_LENGTH, CHARACTER_OCTET_LENGTH
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1' AND COLUMN_NAME IN ('a','b')
ORDER BY COLUMN_NAME;
DROP TABLE t1;


--echo #
--echo # MDEV-15592 - Column COMPRESSED should select a 'high order' datatype
--echo #
CREATE TABLE t1(a TINYTEXT COMPRESSED);
INSERT INTO t1 VALUES(REPEAT('a', 255));
SELECT LEFT(a, 10), LENGTH(a) FROM t1;
DROP TABLE t1;


--echo #
--echo # MDEV-16729 VARCHAR COMPRESSED is created with a wrong length for multi-byte character sets
--echo #

CREATE OR REPLACE TABLE t1 (a VARCHAR(1000) CHARACTER SET utf8 COMPRESSED);
SHOW CREATE TABLE t1;
SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA='test' AND TABLE_NAME='t1';
DROP TABLE t1;