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  1. Calcite
  2. CALCITE-2976

Improve materialized view rewriting coverage with disjunctive predicates

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.20.0
    • Component/s: core

      Description

      For instance, in the following case:

      @Test public void testJoinAggregateMaterializationAggregateFuncs14() {
        checkMaterialize(
            "select \"empid\", \"emps\".\"name\", \"emps\".\"deptno\", \"depts\".\"name\", "
                + "count(*) as c, sum(\"empid\") as s\n"
                + "from \"emps\" join \"depts\" using (\"deptno\")\n"
                + "where (\"depts\".\"name\" is not null and \"emps\".\"name\" = 'a') or "
                + "(\"depts\".\"name\" is not null and \"emps\".\"name\" = 'b')\n"
                + "group by \"empid\", \"emps\".\"name\", \"depts\".\"name\", \"emps\".\"deptno\"",
            "select \"depts\".\"deptno\", sum(\"empid\") as s\n"
                + "from \"emps\" join \"depts\" using (\"deptno\")\n"
                + "where \"depts\".\"name\" is not null and \"emps\".\"name\" = 'a'\n"
                + "group by \"depts\".\"deptno\"",
            HR_FKUK_MODEL,
            CONTAINS_M0);
      }
      

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            • Assignee:
              jcamachorodriguez Jesus Camacho Rodriguez
              Reporter:
              jcamachorodriguez Jesus Camacho Rodriguez

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                Updated:
                Resolved:

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