Commit 9725d32b authored by unknown's avatar unknown
Browse files

Bug#13707 - Server crash with INSERT DELAYED on MyISAM table 

Initialized 'ptr' for a newly instantiated varstring field.
This is required by INSERT DELAYED.

No test case. This is a migration issue. There are two shell
scripts attached to the bug report. They can be used for testing.


sql/field.cc:
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Initialized 'ptr' for a newly instantiated varstring field.
  This is required by INSERT DELAYED.
parent a67e6fdf

sql/field.cc

+10 −3
Original line number Diff line number Diff line
@@ -6202,9 +6202,16 @@ Field *Field_string::new_field(MEM_ROOT *root, struct st_table *new_table) 
    This is done to ensure that ALTER TABLE will convert old VARCHAR fields

    to now VARCHAR fields.

  */

  return new Field_varstring(field_length, maybe_null(),

  Field *new_field= new Field_varstring(field_length, maybe_null(),

                                        field_name, new_table,

                                        charset());

  /*

    delayed_insert::get_local_table() needs a ptr copied from old table.

    This is what other new_field() methods do too. The above method of

    Field_varstring sets ptr to NULL.

  */

  new_field->ptr= ptr;

  return new_field;

}



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