--
-- issue_519.t
--

REPLACE INTO `percona`.`checksums` (db, tbl, chunk, chunk_index, lower_boundary, upper_boundary, this_cnt, this_crc) SELECT ?, ?, ?, ?, ?, ?, COUNT(*) AS cnt, COALESCE(LOWER(CONV(BIT_XOR(CAST(CRC32(CONCAT_WS('#', `i`, `y`, CRC32(`t`), CONCAT(ISNULL(`t`)))) AS UNSIGNED)), 10, 16)), 0) AS crc FROM `issue_519`.`t` FORCE INDEX(`y`) WHERE ((`y` >= ?)) AND ((`y` <= ?)) /*checksum chunk*/

REPLACE INTO `percona`.`checksums` (db, tbl, chunk, chunk_index, lower_boundary, upper_boundary, this_cnt, this_crc) SELECT ?, ?, ?, ?, ?, ?, COUNT(*), '0' FROM `issue_519`.`t` FORCE INDEX(`y`) WHERE ((`y` < ?)) ORDER BY `y` /*past lower chunk*/

REPLACE INTO `percona`.`checksums` (db, tbl, chunk, chunk_index, lower_boundary, upper_boundary, this_cnt, this_crc) SELECT ?, ?, ?, ?, ?, ?, COUNT(*), '0' FROM `issue_519`.`t` FORCE INDEX(`y`) WHERE ((`y` > ?)) ORDER BY `y` /*past upper chunk*/

SELECT /*!40001 SQL_NO_CACHE */ `y` FROM `issue_519`.`t` FORCE INDEX(`y`) WHERE ((`y` >= ?)) ORDER BY `y` LIMIT ?, 2 /*next chunk boundary*/

1 2000 2002
2 2003 2005
3 2006 2008
4 2009 2010
5  2000
6 2010