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  1. MariaDB Server
  2. MDEV-14564

support FOR loop in stored aggregate functions

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Details

    • Task
    • Status: Stalled (View Workflow)
    • Major
    • Resolution: Unresolved
    • None
    • Stored routines
    • None

    Description

      Support the syntax (subject to discussion):

      [begin_label:]
      		 
      FOR GROUP ROWS DO
      		 
        statement_list
      		 
      END FOR [ end_label ]

      See also MDEV-14415.

      Example:

      CREATE AGGREGATE FUNCTION avg(x DOUBLE) RETURNS DOUBLE
      		 
      BEGIN
      		 
        DECLARE count INT DEFAULT 0;
      		 
        DECLARE sum DOUBLE DEFAULT 0;
      		 
        FOR GROUP ROWS DO
      		 
          SET count:=count+1;
      		 
          SET sum:=sum+x;
      		 
        END FOR;
      		 
        RETURN sum/count;
      		 
      END

      Attachments

        Issue Links

          is blocked by

          Task - A task that needs to be done. MDEV-14415 Add Oracle-style FOR loop to sql_mode=DEFAULT

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

          Task - A task that needs to be done. MDEV-7773 Aggregate stored functions

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

          Activity

            People

              Unassigned Unassigned
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:

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