before operator indexer { mem_limit = 16M } searchd { } source test { type = mysql sql_query = SELECT * FROM test_table where document_id in (1,2,3,4,5 ) } index test { source = test path = /test min_word_len = 1 } source test1 { type = mysql sql_query = SELECT * FROM test_table where document_id=6 } index test1 { source = test1 path = /test1 } source test2 { type = mysql sql_query = SELECT * FROM test_table where document_id in ( 10, 11, 12, 13, 14, 15 ) } index test2 { source = test2 path = /test2 } CREATE TABLE test_table ( document_id INT NOT NULL, title VARCHAR(255) NOT NULL, text VARCHAR(4096) NOT NULL ); DROP TABLE IF EXISTS test_table; INSERT INTO test_table ( document_id, title, text ) VALUES ( 1, 'aaa bbb', 'ccc ddd' ), ( 2, 'xxx', 'ccc ddd eee fff ggg' ), ( 3, 'yyy', 'one one one two three' ), ( 4, 'zzz', 'one two three one three one two four one two three four' ), ( 5, '', 'a b c d e f g' ), ( 6, '', 'h1 h2 h3 h4 h5' ), ( 10, '', 'hi' ), ( 11, '', 'hi' ), ( 12, '', 'zi' ), ( 13, '', CONCAT(REPEAT('vi mi ', 530), ' vi mi hi' ) ), ( 14, '', 'vi mi' ), ( 15, '', 'lo' );