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  1. MariaDB Server
  2. MDEV-31073

Server crash, assertion `table != 0 && view->field_translation != 0' failure with ROWNUM and view




      CREATE TABLE t (f INT);
      INSERT INTO t VALUES (1),(2);
      UPDATE v SET f = 10 WHERE ROWNUM() > 42 LIMIT 1;
      # Cleanup
      DROP VIEW v;
      DROP TABLE t;

      Reproducible with MyISAM, Aria, InnoDB on 10.6+, debug and non-debug as shown below.
      The test case is not applicable to earlier versions due to the use of ROWNUM which I couldn't get rid of.

      The failure started happening on 10.6 after this merge:

      commit 5bada1246de48ef4a18fa30388f06719c971c3d7
      Merge: 375991a531f fb72dfbf7fb
      Author: Marko Mäkelä
      Date:   Tue Apr 11 16:15:19 2023 +0300
          Merge 10.5 into 10.6

      I couldn't isolate the exact guilty commit from it (couldn't built with them rolled back individually), but it's a very small merge, there can't be many suspects.

      10.6 non-debug 8f87023d

      #2  <signal handler called>
      #3  heap_info (info=0x0, x=0x7f51ce58da80, flag=18) at /data/src/10.6/storage/heap/hp_info.c:34
      #4  0x00005599f734a7d4 in ha_heap::info (this=0x7f51bc19bf60, flag=18) at /data/src/10.6/storage/heap/ha_heap.cc:370
      #5  0x00005599f6f58d5c in mysql_update (thd=thd@entry=0x7f51bc000c68, table_list=<optimized out>, fields=..., values=..., conds=<optimized out>, order_num=<optimized out>, order=<optimized out>, limit=1, ignore=<optimized out>, found_return=<optimized out>, updated_return=<optimized out>) at /data/src/10.6/sql/sql_update.cc:572
      #6  0x00005599f6e99cc2 in mysql_execute_command (thd=0x7f51bc000c68, is_called_from_prepared_stmt=<optimized out>) at /data/src/10.6/sql/sql_parse.cc:4413
      #7  0x00005599f6e9c725 in mysql_parse (thd=0x7f51bc000c68, rawbuf=<optimized out>, length=<optimized out>, parser_state=<optimized out>) at /data/src/10.6/sql/sql_parse.cc:8036
      #8  0x00005599f6e9ea05 in dispatch_command (command=COM_QUERY, thd=0x7f51bc000c68, packet=<optimized out>, packet_length=<optimized out>, blocking=<optimized out>) at /data/src/10.6/sql/sql_parse.cc:1993
      #9  0x00005599f6e9fcf7 in do_command (thd=0x7f51bc000c68, blocking=blocking@entry=true) at /data/src/10.6/sql/sql_parse.cc:1409
      #10 0x00005599f6f9be27 in do_handle_one_connection (connect=<optimized out>, put_in_cache=true) at /data/src/10.6/sql/sql_connect.cc:1416
      #11 0x00005599f6f9c1bd in handle_one_connection (arg=arg@entry=0x5599f8fd8878) at /data/src/10.6/sql/sql_connect.cc:1318
      #12 0x00005599f72c9e57 in pfs_spawn_thread (arg=0x5599f8f92c68) at /data/src/10.6/storage/perfschema/pfs.cc:2201
      #13 0x00007f51d3aa7fd4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
      #14 0x00007f51d3b2866c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

      10.6 debug 8f87023d

      mariadbd: /data/src/10.6/sql/sql_view.cc:2099: bool check_key_in_view(THD*, TABLE_LIST*): Assertion `table != 0 && view->field_translation != 0' failed.
      230418 11:57:37 [ERROR] mysqld got signal 6 ;
      #9  0x00007ff9e0653df2 in __GI___assert_fail (assertion=0x56499b8a8df8 "table != 0 && view->field_translation != 0", file=0x56499b8a8528 "/data/src/10.6/sql/sql_view.cc", line=2099, function=0x56499b8a8e28 "bool check_key_in_view(THD*, TABLE_LIST*)") at ./assert/assert.c:101
      #10 0x000056499abc76b9 in check_key_in_view (thd=0x7ff9c0000dc8, view=0x7ff9c0015760) at /data/src/10.6/sql/sql_view.cc:2099
      #11 0x000056499abb7428 in mysql_update (thd=0x7ff9c0000dc8, table_list=0x7ff9c0015760, fields=..., values=..., conds=0x7ff9c0016188, order_num=0, order=0x0, limit=1, ignore=false, found_return=0x7ff9dc15fe00, updated_return=0x7ff9dc15fef0) at /data/src/10.6/sql/sql_update.cc:506
      #12 0x000056499aa71edd in mysql_execute_command (thd=0x7ff9c0000dc8, is_called_from_prepared_stmt=false) at /data/src/10.6/sql/sql_parse.cc:4413
      #13 0x000056499aa7e5e8 in mysql_parse (thd=0x7ff9c0000dc8, rawbuf=0x7ff9c0015660 "UPDATE v SET f = 10 WHERE ROWNUM() > 42 LIMIT 1", length=47, parser_state=0x7ff9dc160380) at /data/src/10.6/sql/sql_parse.cc:8036
      #14 0x000056499aa6a0c9 in dispatch_command (command=COM_QUERY, thd=0x7ff9c0000dc8, packet=0x7ff9c000b8f9 "UPDATE v SET f = 10 WHERE ROWNUM() > 42 LIMIT 1", packet_length=47, blocking=true) at /data/src/10.6/sql/sql_parse.cc:1896
      #15 0x000056499aa68a22 in do_command (thd=0x7ff9c0000dc8, blocking=true) at /data/src/10.6/sql/sql_parse.cc:1409
      #16 0x000056499ac39e94 in do_handle_one_connection (connect=0x56499e51ddc8, put_in_cache=true) at /data/src/10.6/sql/sql_connect.cc:1416
      #17 0x000056499ac39c09 in handle_one_connection (arg=0x56499e4f6468) at /data/src/10.6/sql/sql_connect.cc:1318
      #18 0x000056499b1908ee in pfs_spawn_thread (arg=0x56499e4dd5b8) at /data/src/10.6/storage/perfschema/pfs.cc:2201
      #19 0x00007ff9e06a7fd4 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
      #20 0x00007ff9e072866c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81


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              sanja Oleksandr Byelkin
              elenst Elena Stepanova
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