# # this is a test for error 1032 in count(distinct) + group by, introduced in # mysql-4.1 # --disable_warnings DROP TABLE IF EXISTS t1, t2; --enable_warnings CREATE TABLE t1 (id INTEGER, grp TINYINT, id_rev INTEGER); --disable_query_log SET @rnd_max= 2147483647; let $1 = 1000; while ($1) { SET @rnd= RAND(); SET @id = CAST(@rnd * @rnd_max AS UNSIGNED); SET @id_rev= @rnd_max - @id; SET @grp= CAST(128.0 * @rnd AS UNSIGNED); INSERT INTO t1 (id, grp, id_rev) VALUES (@id, @grp, @id_rev); dec $1; } set @@read_buffer_size=2*1024*1024; CREATE TABLE t2 SELECT * FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; INSERT INTO t1 (id, grp, id_rev) SELECT id, grp, id_rev FROM t2; INSERT INTO t2 (id, grp, id_rev) SELECT id, grp, id_rev FROM t1; DROP TABLE t2; --enable_query_log SELECT COUNT(*) FROM t1; # As t1 contains random numbers, results are different from test to test. # That's okay, because we test only that select doesn't yield an # error. Note, that --disable_result_log doesn't suppress error output. --disable_result_log SELECT COUNT(DISTINCT id) FROM t1 GROUP BY grp; --enable_result_log DROP TABLE t1; set @@read_buffer_size=default;