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From "Aljoscha Krettek (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-1156) Bug in Constant Fields Annotation (Semantic Properties)
Date Mon, 13 Oct 2014 08:12:33 GMT
Aljoscha Krettek created FLINK-1156:
---------------------------------------

             Summary: Bug in Constant Fields Annotation (Semantic Properties) 
                 Key: FLINK-1156
                 URL: https://issues.apache.org/jira/browse/FLINK-1156
             Project: Flink
          Issue Type: Bug
            Reporter: Aljoscha Krettek


When I change the first test in SemanticPropUtilTest.java to this:

{code}
@Test
public void testConstantWithArrowIndividualStrings() {
	String[] constantFields = { "0->0,1", "1->3" };

	TypeInformation<?> type = new TupleTypeInfo<Tuple3<Integer, Integer, Integer>>(BasicTypeInfo.INT_TYPE_INFO,
			BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO);
	TypeInformation<?> outType = new TupleTypeInfo<Tuple4<Integer, Integer, Integer,
Integer>>(BasicTypeInfo.INT_TYPE_INFO,
			BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO, BasicTypeInfo.INT_TYPE_INFO);

	SingleInputSemanticProperties sp = SemanticPropUtil.getSemanticPropsSingleFromString(constantFields,
null, null, type, outType);

	FieldSet fs = sp.getForwardedField(0);
	Assert.assertTrue(fs.size() == 2);
	Assert.assertTrue(fs.contains(0));
	Assert.assertTrue(fs.contains(1));

	fs = sp.getForwardedField(1);
	Assert.assertTrue(fs.size() == 1);
	Assert.assertTrue(fs.contains(2));
}
{code}

It fails. It seems the check whether a tuple field is in range is performed on the input type
and the output type is being ignored.

Also, I'm not sure this whole thing works anymore with [~rmetzger]'s recent POJO rework and
nested tuple field selection rework.



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