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MDEV-8919 Wrong result for CAST(9999999999999999999.0)

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This commit is contained in:
Alexander Barkov 2019-05-17 08:08:11 +04:00
commit d682dc2e70
9 changed files with 276 additions and 71 deletions
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54
mysql-test/main/cast.test
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@ -730,3 +730,57 @@ SET sql_mode=DEFAULT;
--echo #
SELECT CAST(11068046444225730969 AS SIGNED);
--echo #
--echo # MDEV-8919 Wrong result for CAST(9999999999999999999.0)
--echo #
SET sql_mode='';
SELECT CAST(9999999999999999999e0 AS UNSIGNED);
CREATE TABLE t1 (a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (9999999999999999999e0);
SELECT * FROM t1;
DROP TABLE t1;
SELECT CAST(9999999999999999999.0 AS UNSIGNED);
CREATE TABLE t1 (a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (9999999999999999999.0);
SELECT * FROM t1;
DROP TABLE t1;
SELECT CAST(-1.0 AS UNSIGNED);
CREATE TABLE t1 (a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (-1.0);
SELECT * FROM t1;
DROP TABLE t1;
SELECT CAST(-1e0 AS UNSIGNED);
CREATE TABLE t1 (a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (-1e0);
SELECT * FROM t1;
DROP TABLE t1;
SELECT CAST(-1e308 AS UNSIGNED);
CREATE TABLE t1 (a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (-1e308);
SELECT * FROM t1;
DROP TABLE t1;
SELECT CAST(TIME'-00:00:01.123' AS UNSIGNED);
CREATE TABLE t1 (a BIGINT UNSIGNED);
INSERT INTO t1 VALUES (TIME'-00:00:01.123');
SELECT * FROM t1;
DROP TABLE t1;
CREATE TABLE t1 (a DOUBLE UNSIGNED);
INSERT INTO t1 VALUES (1.9e19);
SELECT CAST(a AS SIGNED), CAST(MIN(a) AS SIGNED) FROM t1;
DROP TABLE t1;
CREATE TABLE t1 (a DECIMAL(30,1) UNSIGNED);
INSERT INTO t1 VALUES (1e19);
SELECT a, CAST(a AS SIGNED) FROM t1;
DROP TABLE t1;
SET sql_mode=DEFAULT;