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Bug #56662 Assertion failed: next_insert_id == 0, file .\handler.cc

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Normally, auto_increment value is generated for the column by
inserting either NULL or 0 into it. NO_AUTO_VALUE_ON_ZERO
suppresses this behavior for 0 so that only NULL generates
the auto_increment value. This behavior is also followed by
a slave, specifically by the SQL Thread, when applying events
in the statement format from a master. However, when applying
events in the row format, the flag was ignored thus causing
an assertion failure:
"Assertion failed: next_insert_id == 0, file .\handler.cc"
      
In fact, we never need to generate a auto_increment value for
the column when applying events in row format on slave. So we
don't allow it to happen by using 'MODE_NO_AUTO_VALUE_ON_ZERO'.
      
Refactoring: Get rid of all the sql_mode checks to rows_log_event
when applying it for avoiding problems caused by the inconsistency
of the sql_mode on slave and master as the sql_mode is not set for
Rows_log_event.


mysql-test/extra/rpl_tests/rpl_auto_increment.test:
  Added test to verify if the assertion of "next_insert_id == 0"
  will fail in ha_external_lock() function.
mysql-test/suite/rpl/r/rpl_auto_increment.result:
  Test result for bug#56662.
sql/log_event.cc:
  Added code to not allow generation of auto_increment value when
  processing rows event by adding 'MODE_NO_AUTO_VALUE_ON_ZERO' to
  sql_mode.
sql/rpl_record.cc:
  Added code to get rid of the 'MODE_STRICT_TRANS_TABLES'  and
  MODE_STRICT_ALL_TABLES check to the table when appling the
  rows event and treat it as no strict.
This commit is contained in:
unknown
2010-12-21 18:23:20 +08:00
parent 051c207604 d5bf6b8aa8
commit c37ad60ef1
6 changed files with 76 additions and 66 deletions
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7
sql/rpl_record.h
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@ -32,13 +32,10 @@ size_t pack_row(TABLE* table, MY_BITMAP const* cols,
int unpack_row(Relay_log_info const *rli,
TABLE *table, uint const colcnt,
uchar const *const row_data, MY_BITMAP const *cols,
uchar const **const row_end, ulong *const master_reclength,
const bool abort_on_warning= TRUE, const bool first_row= TRUE);
uchar const **const row_end, ulong *const master_reclength);
// Fill table's record[0] with default values.
int prepare_record(TABLE *const table, const uint skip, const bool check,
const bool abort_on_warning= TRUE,
const bool first_row= TRUE);
int prepare_record(TABLE *const table, const uint skip, const bool check);
#endif
#endif