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  1. MariaDB Server
  2. MDEV-8911

Date comparaison to string failed with '=' and ISO DATE

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      Description

      Date comparison fail on the datetime fields only on strict comparisons

      Table format

      +------------------+--------------+------+-----+---------+-------+
      | Field            | Type         | Null | Key | Default | Extra |
      +------------------+--------------+------+-----+---------+-------+
      | processingdate   | datetime     | YES  |     | NULL    |       |
      +------------------+--------------+------+-----+---------+-------+

      Table content

      select processingdate from rbs_order_doc_shipment ;
      +---------------------+
      | processingdate      |
      +---------------------+
      | NULL                |
      | 2015-10-06 15:24:47 |
      | NULL                |
      | 2015-10-06 15:27:38 |
      | 2015-10-06 19:14:52 |
      | 2015-10-06 19:14:52 |
      | 2015-10-06 19:14:52 |
      | 2015-10-07 06:04:30 |
      +---------------------+

      Query on error

      select processingdate from rbs_order_doc_shipment where processingdate = '2015-10-06T19:14:52+0000' ;
      Empty set (0.00 sec)

      But those works:

      select processingdate from rbs_order_doc_shipment where processingdate <= '2015-10-06T19:14:52+0000' ;
      +---------------------+
      | processingdate      |
      +---------------------+
      | 2015-10-06 15:24:47 |
      | 2015-10-06 15:27:38 |
      | 2015-10-06 19:14:52 |
      | 2015-10-06 19:14:52 |
      | 2015-10-06 19:14:52 |
      +---------------------+

      select processingdate from rbs_order_doc_shipment where processingdate >= '2015-10-06T19:14:52+0000'   limit 10;
      +---------------------+
      | processingdate      |
      +---------------------+
      | 2015-10-06 19:14:52 |
      | 2015-10-06 19:14:52 |
      | 2015-10-06 19:14:52 |
      | 2015-10-07 06:04:30 |
      +---------------------+

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            Assignee:
            psergey Sergei Petrunia
            Reporter:
            bnprss Benjamin Preiss
            Votes:
            1 Vote for this issue
            Watchers:
            3 Start watching this issue

              Dates

              Created:
              Updated: