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Fix Bug #21328 mysqld issues warnings on ALTER CSV table to MyISAM

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mysql-test/r/csv.result:
  update result file
mysql-test/r/log_tables.result:
  log_tables test contains alter of a CSV table with
  NULLs which results in warnings. In fact this is how
  the bug noticed. So, now when it is fixed we should
  update result file.
mysql-test/t/csv.test:
  add a test for the bug
storage/csv/ha_tina.cc:
  We should write 0 to the data file in the
  case we meet NULL. CSV does not support
  NULL values internally and we shouldn't
  distinguish them from 0 when writing a row
  (the alternative is to implement full NULL
  support). Otherwise other routines (such as
  Field::check_int() become confused).
  In 5.0 NULLs are stored as zeroes. In 5.1 it
  somehow turned into empty string. Which is wrong.
This commit is contained in:
unknown
2006-12-04 03:07:44 +03:00
parent 23776f53ff
commit ebd5aec15e
4 changed files with 26 additions and 5 deletions
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8
mysql-test/r/csv.result
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@ -5223,3 +5223,11 @@ check table bug22080_3;
Table Op Msg_type Msg_text
test.bug22080_3 check error Corrupt
drop tables bug22080_1,bug22080_2,bug22080_3;
CREATE TABLE `bug21328` (
`col1` int(11) DEFAULT NULL,
`col2` int(11) DEFAULT NULL,
`col3` int(11) DEFAULT NULL
) ENGINE=CSV;
insert into bug21328 values (1,NULL,NULL);
alter table bug21328 engine=myisam;
drop table bug21328;