diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/my_base.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/my_base.h b/include/my_base.h index 076eed9998f..05ba38e77eb 100644 --- a/include/my_base.h +++ b/include/my_base.h @@ -152,7 +152,16 @@ enum ha_extra_function { other fields intact. When this is off (by default) InnoDB will use memcpy to overwrite entire row. */ - HA_EXTRA_KEYREAD_PRESERVE_FIELDS + HA_EXTRA_KEYREAD_PRESERVE_FIELDS, + /* + Informs handler that write_row() which tries to insert new row into the + table and encounters some already existing row with same primary/unique + key can replace old row with new row instead of reporting error (basically + it informs handler that we do REPLACE instead of simple INSERT). + Off by default. + */ + HA_EXTRA_WRITE_CAN_REPLACE, + HA_EXTRA_WRITE_CANNOT_REPLACE }; /* The following is parameter to ha_panic() */ |