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  1. MariaDB Server
  2. MDEV-15750

preserve MYSQL_TYPE_TIMESTAMP in temporal arithmetics

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    Description

      create or replace table t1 (a timestamp);
      		 
      insert t1 values ('2018-3-25 1:30:00');
      		 
      create or replace table t2 as select a + interval 1 hour from t1;
      		 
      show create table t2;

      returns

      +-------+----------------------------------------------------------------------------------------------------------+
      		 
      | Table | Create Table                                                                                             |
      		 
      +-------+----------------------------------------------------------------------------------------------------------+
      		 
      | t2    | CREATE TABLE `t2` (
      		 
        `a + interval 1 hour` datetime DEFAULT NULL
      		 
      ) ENGINE=MyISAM DEFAULT CHARSET=latin1 |
      		 
      +-------+----------------------------------------------------------------------------------------------------------+

      Should be timestamp, not datetime.

      This should cover all temporal arithmetic functions, e.g. ADDTIME too.

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MDEV-25279 Time operations do not consider daylight savings

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is blocked by

          New Feature - A new feature of the product, which has yet to be developed. MDEV-15751 CURRENT_TIMESTAMP should return a TIMESTAMP (WITH TIME ZONE?)

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Task - A task that needs to be done. MDEV-16852 Get rid of Item_temporal_hybrid_func::fix_temporal_type()

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-16864 Implement class Item_func_timestamp

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-16874 Implement class Item_handled_func

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-32496 TIMESTAMP variant to support YEAR range -4713 and +9999

          • Major - Major loss of function.
          • Open
          relates to

          New Feature - A new feature of the product, which has yet to be developed. MDEV-15751 CURRENT_TIMESTAMP should return a TIMESTAMP (WITH TIME ZONE?)

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-15654 ADDTIME creates invalid timestamp value near DST changes

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. MDEV-30633 DATETIME to TIMESTAMP conversion to return maximum timestamp on overflow

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. MDEV-32188 make TIMESTAMP use whole 32-bit unsigned range

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              bar Alexander Barkov
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:

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