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

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This commit is contained in:
Alexander Barkov
2018-05-10 19:30:43 +04:00
parent fc63c1e17a
commit 33721d9138
3 changed files with 37 additions and 1 deletions
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16
mysql-test/main/column_compression.test
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@ -120,3 +120,19 @@ 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;