CREATE TABLE IF NOT EXISTS t0 (f0 INT);
|
CREATE TABLE IF NOT EXISTS t1 (f1 INT);
|
CREATE TABLE IF NOT EXISTS t2 (f2 INT);
|
CREATE TABLE IF NOT EXISTS t3 (f3 INT);
|
CREATE TABLE IF NOT EXISTS t4 (f4 INT);
|
CREATE TABLE IF NOT EXISTS t5 (f5 INT);
|
CREATE TABLE IF NOT EXISTS t6 (f6 INT);
|
CREATE TABLE IF NOT EXISTS t7 (f7 INT);
|
CREATE TABLE IF NOT EXISTS t8 (f8 INT);
|
CREATE TABLE IF NOT EXISTS t9 (f9 INT);
|
CREATE TABLE IF NOT EXISTS t10 (f10 INT);
|
CREATE TABLE IF NOT EXISTS t11 (f11 INT);
|
CREATE TABLE IF NOT EXISTS t12 (f12 INT);
|
CREATE TABLE IF NOT EXISTS t13 (f13 INT);
|
CREATE TABLE IF NOT EXISTS t14 (f14 INT);
|
CREATE TABLE IF NOT EXISTS t15 (f15 INT);
|
CREATE TABLE IF NOT EXISTS t16 (f16 INT);
|
CREATE TABLE IF NOT EXISTS t17 (f17 INT);
|
CREATE TABLE IF NOT EXISTS t18 (f18 INT);
|
CREATE TABLE IF NOT EXISTS t19 (f19 INT);
|
CREATE TABLE IF NOT EXISTS t20 (f20 INT);
|
CREATE TABLE IF NOT EXISTS t21 (f21 INT);
|
CREATE TABLE IF NOT EXISTS t22 (f22 INT);
|
CREATE TABLE IF NOT EXISTS t23 (f23 INT);
|
CREATE TABLE IF NOT EXISTS t24 (f24 INT);
|
CREATE TABLE IF NOT EXISTS t25 (f25 INT);
|
CREATE TABLE IF NOT EXISTS t26 (f26 INT);
|
CREATE TABLE IF NOT EXISTS t27 (f27 INT);
|
CREATE TABLE IF NOT EXISTS t28 (f28 INT);
|
CREATE TABLE IF NOT EXISTS t29 (f29 INT);
|
CREATE TABLE IF NOT EXISTS t30 (f30 INT);
|
CREATE TABLE IF NOT EXISTS t31 (f31 INT);
|
CREATE TABLE IF NOT EXISTS t32 (f32 INT);
|
CREATE TABLE IF NOT EXISTS t33 (f33 INT);
|
CREATE TABLE IF NOT EXISTS t34 (f34 INT);
|
CREATE TABLE IF NOT EXISTS t35 (f35 INT);
|
CREATE TABLE IF NOT EXISTS t36 (f36 INT);
|
CREATE TABLE IF NOT EXISTS t37 (f37 INT);
|
CREATE TABLE IF NOT EXISTS t38 (f38 INT);
|
CREATE TABLE IF NOT EXISTS t39 (f39 INT);
|
CREATE TABLE IF NOT EXISTS t40 (f40 INT);
|
CREATE TABLE IF NOT EXISTS t41 (f41 INT);
|
CREATE TABLE IF NOT EXISTS t42 (f42 INT);
|
CREATE TABLE IF NOT EXISTS t43 (f43 INT);
|
CREATE TABLE IF NOT EXISTS t44 (f44 INT);
|
CREATE TABLE IF NOT EXISTS t45 (f45 INT);
|
CREATE TABLE IF NOT EXISTS t46 (f46 INT);
|
CREATE TABLE IF NOT EXISTS t47 (f47 INT);
|
CREATE TABLE IF NOT EXISTS t48 (f48 INT);
|
CREATE TABLE IF NOT EXISTS t49 (f49 INT);
|
CREATE TABLE IF NOT EXISTS t50 (f50 INT);
|
CREATE TABLE IF NOT EXISTS t51 (f51 INT);
|
CREATE TABLE IF NOT EXISTS t52 (f52 INT);
|
CREATE TABLE IF NOT EXISTS t53 (f53 INT);
|
CREATE TABLE IF NOT EXISTS t54 (f54 INT);
|
CREATE TABLE IF NOT EXISTS t55 (f55 INT);
|
CREATE TABLE IF NOT EXISTS t56 (f56 INT);
|
CREATE TABLE IF NOT EXISTS t57 (f57 INT);
|
CREATE TABLE IF NOT EXISTS t58 (f58 INT);
|
CREATE TABLE IF NOT EXISTS t59 (f59 INT);
|
CREATE TABLE IF NOT EXISTS t60 (f60 INT);
|
CREATE OR REPLACE VIEW v60 AS SELECT * FROM t60;
|
|
EXPLAIN
|
SELECT t0.*
|
FROM t0
|
JOIN t1
|
ON t1.f1 = t0.f0
|
LEFT JOIN t2
|
ON t0.f0 = t2.f2
|
LEFT JOIN t3
|
ON t0.f0 = t3.f3
|
LEFT JOIN t4
|
ON t0.f0 = t4.f4
|
LEFT JOIN t5
|
ON t4.f4 = t5.f5
|
LEFT JOIN t6
|
ON t0.f0 = t6.f6
|
LEFT JOIN t7
|
ON t0.f0 = t7.f7
|
LEFT JOIN t8
|
ON t0.f0 = t8.f8
|
LEFT JOIN t9
|
ON t0.f0 = t9.f9
|
LEFT JOIN t10
|
ON t0.f0 = t10.f10
|
LEFT JOIN t11
|
ON t0.f0 = t11.f11
|
LEFT JOIN t12
|
ON t0.f0 = t12.f12
|
LEFT JOIN t13
|
ON t0.f0 = t13.f13
|
LEFT JOIN t14
|
ON t0.f0 = t14.f14
|
LEFT JOIN t15
|
ON t0.f0 = t15.f15
|
LEFT JOIN t16
|
ON t0.f0 = t16.f16
|
LEFT JOIN t17
|
ON t0.f0 = t17.f17
|
LEFT JOIN t18
|
ON t0.f0 = t18.f18
|
LEFT JOIN t19
|
ON t18.f18 = t19.f19
|
LEFT JOIN t20
|
ON t20.f20 = t19.f19
|
LEFT JOIN t21
|
ON t20.f20 = t21.f21
|
LEFT JOIN t22
|
ON t19.f19 = t22.f22
|
LEFT JOIN t23
|
ON t23.f23 = t0.f0
|
LEFT JOIN t24
|
ON t24.f24 = t23.f23
|
LEFT JOIN t25
|
ON t0.f0 = t25.f25
|
LEFT JOIN t26
|
ON t26.f26 = t0.f0
|
LEFT JOIN t27
|
ON t27.f27 = t0.f0
|
LEFT JOIN t28
|
ON t0.f0 = t28.f28
|
LEFT JOIN t29
|
ON t0.f0 = t29.f29
|
LEFT JOIN t30
|
ON t30.f30 = t0.f0
|
LEFT JOIN t31
|
ON t0.f0 = t31.f31
|
LEFT JOIN t32
|
ON t32.f32 = t31.f31
|
LEFT JOIN t33
|
ON t33.f33 = t0.f0
|
LEFT JOIN t34
|
ON t33.f33 = t34.f34
|
LEFT JOIN t35
|
ON t33.f33 = t35.f35
|
LEFT JOIN t36
|
ON t36.f36 = t0.f0
|
LEFT JOIN t37
|
ON t32.f32 = t37.f37
|
LEFT JOIN t38
|
ON t31.f31 = t38.f38
|
LEFT JOIN t39
|
ON t39.f39 = t0.f0
|
LEFT JOIN t40
|
ON t40.f40 = t39.f39
|
LEFT JOIN t41
|
ON t41.f41 = t0.f0
|
LEFT JOIN t42
|
ON t42.f42 = t41.f41
|
LEFT JOIN t43
|
ON t43.f43 = t41.f41
|
LEFT JOIN t44
|
ON t44.f44 = t0.f0
|
LEFT JOIN t45
|
ON t45.f45 = t0.f0
|
LEFT JOIN t46
|
ON t46.f46 = t0.f0
|
LEFT JOIN t47
|
ON t47.f47 = t0.f0
|
LEFT JOIN t48
|
ON t48.f48 = t0.f0
|
LEFT JOIN t49
|
ON t0.f0 = t49.f49
|
LEFT JOIN t50
|
ON t0.f0 = t50.f50
|
LEFT JOIN t51
|
ON t0.f0 = t51.f51
|
LEFT JOIN t52
|
ON t52.f52 = t0.f0
|
LEFT JOIN t53
|
ON t53.f53 = t0.f0
|
LEFT JOIN t54
|
ON t54.f54 = t0.f0
|
LEFT JOIN t55
|
ON t55.f55 = t0.f0
|
LEFT JOIN t56
|
ON t56.f56 = t0.f0
|
LEFT JOIN t57
|
ON t57.f57 = t0.f0
|
LEFT JOIN t58
|
ON t58.f58 = t57.f57
|
LEFT JOIN t59
|
ON t36.f36 = t59.f59
|
LEFT JOIN v60
|
ON t36.f36 = v60.f60
|
;
|
Reproducible on 5.5, 10.0, 10.1.
Could not reproduce on 10.2, MySQL 5.5-5.7.
5.5 96b62b55149a9297f32c3aad99ece613cc3f788f
#3 <signal handler called>
#4 0x00000000006d3e3c in TABLE_LIST::fetch_number_of_rows (this=0x7fa10e5ef000) at /data/src/5.5/sql/table.cc:6812
#5 0x000000000063a409 in make_join_statistics (join=0x7fa10e7b3ac0, tables_list=..., conds=0x7fa10e7f5938, keyuse_array=0x7fa10e7b3dd8) at /data/src/5.5/sql/sql_select.cc:3223
#6 0x000000000063337c in JOIN::optimize (this=0x7fa10e7b3ac0) at /data/src/5.5/sql/sql_select.cc:1229
#7 0x0000000000639d01 in mysql_select (thd=0x7fa10f674060, rref_pointer_array=0x7fa10f677ce0, tables=0x7fa10e5491f0, wild_num=1, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147748612, result=0x7fa10e5f1f30, unit=0x7fa10f677390, select_lex=0x7fa10f677a70) at /data/src/5.5/sql/sql_select.cc:3080
#8 0x000000000066af6f in mysql_explain_union (thd=0x7fa10f674060, unit=0x7fa10f677390, result=0x7fa10e5f1f30) at /data/src/5.5/sql/sql_select.cc:23063
#9 0x0000000000609a31 in execute_sqlcom_select (thd=0x7fa10f674060, all_tables=0x7fa10e5491f0) at /data/src/5.5/sql/sql_parse.cc:4660
#10 0x0000000000602f34 in mysql_execute_command (thd=0x7fa10f674060) at /data/src/5.5/sql/sql_parse.cc:2234
#11 0x000000000060c7ae in mysql_parse (thd=0x7fa10f674060, rawbuf=0x7fa10e548078 "EXPLAIN\nSELECT t0.*\nFROM t0\nJOIN t1\nON t1.f1 = t0.f0\nLEFT JOIN t2\nON t0.f0 = t2.f2\nLEFT JOIN t3\nON t0.f0 = t3.f3\nLEFT JOIN t4\nON t0.f0 = t4.f4\nLEFT JOIN t5\nON t4.f4 = t5.f5\nLEFT JOIN t6\nON t0.f0 = t6."..., length=2007, parser_state=0x7fa115930650) at /data/src/5.5/sql/sql_parse.cc:5934
#12 0x00000000006004c3 in dispatch_command (command=COM_QUERY, thd=0x7fa10f674060, packet=0x7fa11034e061 "", packet_length=2008) at /data/src/5.5/sql/sql_parse.cc:1079
#13 0x00000000005ff67d in do_command (thd=0x7fa10f674060) at /data/src/5.5/sql/sql_parse.cc:793
#14 0x0000000000701889 in do_handle_one_connection (thd_arg=0x7fa10f674060) at /data/src/5.5/sql/sql_connect.cc:1270
#15 0x0000000000701616 in handle_one_connection (arg=0x7fa10f674060) at /data/src/5.5/sql/sql_connect.cc:1186
#16 0x0000000000943ae5 in pfs_spawn_thread (arg=0x7fa11037a300) at /data/src/5.5/storage/perfschema/pfs.cc:1015
#17 0x00007fa11556d0a4 in start_thread (arg=0x7fa115931700) at pthread_create.c:309
#18 0x00007fa11399387d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Test case
EXPLAIN
;