[jira] [Created] (CALCITE-3561) Support using unnest in Interpreter

[Wang Yanlin (Jira)]

Wang Yanlin created CALCITE-3561:
------------------------------------

             Summary: Support using unnest in Interpreter
                 Key: CALCITE-3561
                 URL: https://issues.apache.org/jira/browse/CALCITE-3561
             Project: Calcite
          Issue Type: Improvement
            Reporter: Wang Yanlin


Using unnest in Interpreter will cause exception, 

{code:java}
// InterpreterTest
@Test public void testInterpretUnnest() throws Exception {
    final String sql = "select * from unnest(multiset[1, 2])";
    sql(sql).returnsRows("[1]", "[2]");
  }
{code}

got

{code:java}
java.lang.AssertionError: interpreter: no implementation for class 
org.apache.calcite.rel.core.Uncollect
        at 
org.apache.calcite.interpreter.Interpreter$CompilerImpl.visit(Interpreter.java:463)
        at 
org.apache.calcite.interpreter.Nodes$CoreCompiler.visit(Nodes.java:44)
        at org.apache.calcite.rel.SingleRel.childrenAccept(SingleRel.java:72)
        at 
org.apache.calcite.interpreter.Interpreter$CompilerImpl.visit(Interpreter.java:450)
        at 
org.apache.calcite.interpreter.Nodes$CoreCompiler.visit(Nodes.java:44)
        at 
org.apache.calcite.interpreter.Interpreter$CompilerImpl.visitRoot(Interpreter.java:408)
        at 
org.apache.calcite.interpreter.Interpreter.<init>(Interpreter.java:89)
        at 
org.apache.calcite.test.InterpreterTest$Sql.returnsRows(InterpreterTest.java:121)
        at 
org.apache.calcite.test.InterpreterTest$Sql.returnsRows(InterpreterTest.java:105)
        at 
org.apache.calcite.test.InterpreterTest.testInterpretUnnest(InterpreterTest.java:446)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
{code}

Add support to use unnest in Interpreter.



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