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  1. MariaDB ColumnStore
  2. MCOL-4619

TreeNode::getUintVal() does not round: Implicit DECIMAL->UINT conversion is not like in InnoDB

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 5.6.1, 6.1.1
    • Fix Version/s: 6.1.1
    • Component/s: PrimProc
    • Labels:
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      Description

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a VARCHAR(32), d DECIMAL(10,1)) ENGINE=ColumnStore;
      INSERT INTO t1 VALUES ('aaaa', 1.5);
      SELECT LEFT(a, d) FROM t1;
      

      +------------+
      | LEFT(a, d) |
      +------------+
      | a          |
      +------------+
      

      Notice, 1.5 was truncated to 1.

      Looks wrong. The expected result is to round:

      DROP TABLE IF EXISTS t1;
      CREATE TABLE t1 (a VARCHAR(32), d DECIMAL(10,1)) ENGINE=InnoDB;
      INSERT INTO t1 VALUES ('aaaa', 1.5);
      SELECT LEFT(a, d) FROM t1;
      

      +------------+
      | LEFT(a, d) |
      +------------+
      | aa         |
      +------------+
      

      Notice, 1.5 was rounded to 2.

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              Assignee:
              bar Alexander Barkov
              Reporter:
              bar Alexander Barkov
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                Dates

                Created:
                Updated:
                Resolved:

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