[jira] [Created] (CALCITE-5409) Jdbc doesn't support EnumerableRules.ENUMERABLE_BATCH_NESTED_LOOP_JOIN_RULE

["Ulrich Kramer (Jira)" <ji...@apache.org>]

Ulrich Kramer created CALCITE-5409:
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             Summary: Jdbc doesn't support EnumerableRules.ENUMERABLE_BATCH_NESTED_LOOP_JOIN_RULE
                 Key: CALCITE-5409
                 URL: https://issues.apache.org/jira/browse/CALCITE-5409
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.32.0
            Reporter: Ulrich Kramer


Adding the following unit test to {{JdbcAdapterTest}} causes an {{NullPointerException}}

{code:java}
  @Test void testBatchNestedLoopJoin() {
    CalciteAssert.that()
        .with(CalciteConnectionProperty.LEX, Lex.JAVA)
        .with(CalciteConnectionProperty.FORCE_DECORRELATE, false)
        .withSchema("s", new ReflectiveSchema(new HrSchema()))
        .withModel(FoodmartSchema.FOODMART_MODEL)
        .query("select e.name from emps e join foodmart.store x on e.deptno = x.store_id")
        .withHook(Hook.PLANNER, (Consumer<RelOptPlanner>) planner -> {
          planner.removeRule(EnumerableRules.ENUMERABLE_CORRELATE_RULE);
          planner.addRule(EnumerableRules.ENUMERABLE_BATCH_NESTED_LOOP_JOIN_RULE);
        })
        .runs();
  }
{code}

{code}
Error while executing SQL "select e.name from emps e join foodmart.store x on e.deptno = x.store_id": Unable to implement EnumerableCalc(expr#0..2=[{inputs}], name=[$t0]): rowcount = 375.0, cumulative cost = {1465.0 rows, 2968.0 cpu, 0.0 io}, id = 174
  EnumerableBatchNestedLoopJoin(condition=[=($1, $2)], joinType=[inner], variablesSet=[[$cor0, ... $cor99]], batchSize=[100]): rowcount = 375.0, cumulative cost = {1090.0 rows, 1468.0 cpu, 0.0 io}, id = 170
    EnumerableCalc(expr#0..4=[{inputs}], expr#5=[CAST($t1):INTEGER NOT NULL], name=[$t2], deptno0=[$t5]): rowcount = 100.0, cumulative cost = {200.0 rows, 901.0 cpu, 0.0 io}, id = 176
      EnumerableTableScan(table=[[s, emps]]): rowcount = 100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io}, id = 52
    JdbcToEnumerableConverter: rowcount = 25.0, cumulative cost = {207.5 rows, 283.5 cpu, 0.0 io}, id = 168
      JdbcFilter(condition=[OR(=($cor0.deptno0, $0), ...)]): rowcount = 25.0, cumulative cost = {205.0 rows, 281.0 cpu, 0.0 io}, id = 166
        JdbcProject(store_id=[$0]): rowcount = 100.0, cumulative cost = {180.0 rows, 181.0 cpu, 0.0 io}, id = 164
          JdbcTableScan(table=[[foodmart, store]]): rowcount = 100.0, cumulative cost = {100.0 rows, 101.0 cpu, 0.0 io}, id = 3
...
Suppressed: java.lang.NullPointerException: variable $cor0 is not found
{code}


See also https://issues.apache.org/jira/browse/CALCITE-5354



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