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  1. MariaDB Server
  2. MDEV-10142 PL/SQL parser
  3. MDEV-12291

Allow ROW variables as SELECT INTO targets

Details

    • 10.2.2-3, 10.2.2-1, 10.2.2-2, 10.2.2-4, 10.1.18

    Description

      Under terms of this task we'll add support for ROW type variables as SELECT..INTO targets.

      Example:

      SET sql_mode=DEFAULT;
      		 
      DROP TABLE IF EXISTS t1;
      		 
      DROP PROCEDURE IF EXISTS p1;
      		 
      CREATE TABLE t1 (a INT, b VARCHAR(32));
      		 
      INSERT INTO t1 VALUES (10,'b10');
      		 
      DELIMITER $$
      		 
      CREATE PROCEDURE p1()
      		 
      BEGIN
      		 
        DECLARE rec1 ROW(a INT, b VARCHAR(32));
      		 
        SELECT * FROM t1 INTO rec1;
      		 
        SELECT rec1.a, rec1.b;
      		 
      END;
      		 
      $$
      		 
      DELIMITER ;
      		 
      CALL p1();


      +--------+--------+
      		 
      | rec1.a | rec1.b |
      		 
      +--------+--------+
      		 
      |     10 | b10    |
      		 
      +--------+--------+

      Example for sql_mode=ORACLE:

      SET sql_mode=ORACLE;
      		 
      DROP TABLE IF EXISTS t1;
      		 
      DROP PROCEDURE IF EXISTS p1;
      		 
      CREATE TABLE t1 (a INT, b VARCHAR(32));
      		 
      INSERT INTO t1 VALUES (10,'b10');
      		 
      DELIMITER $$
      		 
      CREATE PROCEDURE p1 AS
      		 
        rec1 ROW(a INT, b VARCHAR(32));
      		 
      BEGIN
      		 
        SELECT * FROM t1 INTO rec1;
      		 
        SELECT rec1.a, rec1.b;
      		 
      END;
      		 
      $$
      		 
      DELIMITER ;
      		 
      CALL p1();


      +--------+--------+
      		 
      | rec1.a | rec1.b |
      		 
      +--------+--------+
      		 
      |     10 | b10    |
      		 
      +--------+--------+

      sql_mode=ORACLE will additionally support table%ROWTYPE variables as SELECT..INTO targets:

      SET sql_mode=ORACLE;
      		 
      DROP TABLE IF EXISTS t1;
      		 
      DROP PROCEDURE IF EXISTS p1;
      		 
      CREATE TABLE t1 (a INT, b VARCHAR(32));
      		 
      INSERT INTO t1 VALUES (10,'b10');
      		 
      DELIMITER $$
      		 
      CREATE PROCEDURE p1 AS
      		 
        rec1 t1%ROWTYPE;
      		 
      BEGIN
      		 
        SELECT * FROM t1 INTO rec1;
      		 
        SELECT rec1.a, rec1.b;
      		 
      END;
      		 
      $$
      		 
      DELIMITER ;
      		 
      CALL p1();


      +--------+--------+
      		 
      | rec1.a | rec1.b |
      		 
      +--------+--------+
      		 
      |     10 | b10    |
      		 
      +--------+--------+

      sql_mode=ORACLE will additionally support cursor%ROWTYPE variables as SELECT..INTO targets:

      SET sql_mode=ORACLE;
      		 
      DROP TABLE IF EXISTS t1;
      		 
      DROP PROCEDURE IF EXISTS p1;
      		 
      CREATE TABLE t1 (a INT, b VARCHAR(32));
      		 
      INSERT INTO t1 VALUES (10,'b10');
      		 
      DELIMITER $$
      		 
      CREATE PROCEDURE p1 AS
      		 
        CURSOR cur1 IS SELECT * FROM t1;
      		 
        rec1 cur1%ROWTYPE;
      		 
      BEGIN
      		 
        SELECT * FROM t1 INTO rec1;
      		 
        SELECT rec1.a, rec1.b;
      		 
      END;
      		 
      $$
      		 
      DELIMITER ;
      		 
      CALL p1();


      +--------+--------+
      		 
      | rec1.a | rec1.b |
      		 
      +--------+--------+
      		 
      |     10 | b10    |
      		 
      +--------+--------+

      An attempt to use multiple ROW variables in the SELECT..INTO list will report an error.

      An attempt to use ROW variables with a different column count than in the SELECT..INTO list will report an error.

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-12461 TYPE OF and ROW TYPE OF anchored data types for stored routine variables

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

          Technical task - A technical task. MDEV-12333 Allow %ROWTYPE variable fields as FETCH INTO targets

          • Major - Major loss of function.
          • Open

          Technical task - A technical task. MDEV-12334 Allow %ROWTYPE variable fields as SELECT INTO targets

          • Major - Major loss of function.
          • Open

          Activity

            Transition Time In Source Status Execution Times
            Alexander Barkov made transition -
            Open In Progress
            		2m 15s 1
            Alexander Barkov made transition -
            In Progress Closed
            		1d 1

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              bar Alexander Barkov
              bar Alexander Barkov
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              Dates

                Created:
                Updated:
                Resolved:

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