The query returns an incorrect value when using LPAD and REPLACE.

-- create table

DROP TABLE IF EXISTS `t0`;

CREATE TABLE `t0` (

  `c0` decimal(10,0) DEFAULT NULL,

  UNIQUE KEY `c0` (`c0`)

);

INSERT INTO `t0` VALUES (NULL), (-1453243642), (0), (959229237);

DROP TABLE IF EXISTS `t1`;

CREATE TABLE `t1` (

  `c0` decimal(10,0) DEFAULT NULL,

  UNIQUE KEY `c0` (`c0`)

);

INSERT INTO `t1` VALUES (NULL), (-310606044), (959229237);

-- query, expect:empty set, actual:{0}

SELECT * FROM t0

WHERE

  (LPAD('0', c0 + 1, '1') OR REPLACE(CAST(FALSE AS CHAR), FALSE, c0))

  AND

  NOT (LPAD('0', c0 + 1, '1') OR REPLACE(CAST(FALSE AS CHAR), FALSE, c0));