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| author | unknown <timour@askmonty.org> | 2012-10-17 15:43:56 +0300 |
|---|---|---|
| committer | unknown <timour@askmonty.org> | 2012-10-17 15:43:56 +0300 |
| commit | bc4a456758c8077e5377b8cfaed60af4311653a0 (patch) | |
| tree | b4689bc3028c30ad38355adbb4d574db5cb57437 /sql/sql_table.h | |
| parent | 620d14f8c3521f9ec7283b8690e0e16434739d33 (diff) | |
| download | mariadb-git-bc4a456758c8077e5377b8cfaed60af4311653a0.tar.gz | |
MDEV-452 Add full support for auto-initialized/updated timestamp and datetime
Generalized support for auto-updated and/or auto-initialized timestamp
and datetime columns. This patch is a reimplementation of MySQL's
"WL#5874: CURRENT_TIMESTAMP as DEFAULT for DATETIME columns". In order to
ease future merges, this implementation reused few function and variable
names from MySQL's patch, however the implementation is quite different.
TODO:
The only unresolved problem in this patch is the semantics of LOAD DATA for
TIMESTAMP and DATETIME columns in the cases when there are missing or NULL
columns. I couldn't fully comprehend the logic behind MySQL's behavior and
its relationship with their own documentation, so I left the results to be
more consistent with all other LOAD cases.
The problematic test cases can be seen by running the test file function_defaults,
and observing the test case differences. Those were left on purpose for discussion.
Diffstat (limited to 'sql/sql_table.h')
| -rw-r--r-- | sql/sql_table.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sql/sql_table.h b/sql/sql_table.h index 00de6ed1b8d..9d5e768a5a3 100644 --- a/sql/sql_table.h +++ b/sql/sql_table.h @@ -187,7 +187,6 @@ void close_cached_table(THD *thd, TABLE *table); void sp_prepare_create_field(THD *thd, Create_field *sql_field); int prepare_create_field(Create_field *sql_field, uint *blob_columns, - int *timestamps, int *timestamps_with_niladic, longlong table_flags); CHARSET_INFO* get_sql_field_charset(Create_field *sql_field, HA_CREATE_INFO *create_info); @@ -208,6 +207,9 @@ void execute_ddl_log_recovery(); bool execute_ddl_log_entry(THD *thd, uint first_entry); bool check_duplicate_warning(THD *thd, char *msg, ulong length); +template<typename T> class List; +void promote_first_timestamp_column(List<Create_field> *column_definitions); + /* These prototypes where under INNODB_COMPATIBILITY_HOOKS. */ |