Package org.apache.pig.impl.logicalLayer

Examples of org.apache.pig.impl.logicalLayer.LOJoin

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    @Test
    public void testQueryFRJoinOnStarNoSchema() throws FrontendException {
        String query = "c = join (load 'a') by *, (load 'b') by * using \"replicated\";";
        LogicalPlan lp = planTester.buildPlan(query);

        LOJoin frjoin = (LOJoin)lp.getLeaves().get(0);
        assertTrue(frjoin.getRelevantInputs(0, 0) == null);
    }
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    @Test
    public void testQueryJoinOnStarNoSchema() throws FrontendException {
        String query = "c = join (load 'a') by *, (load 'b') by *;";
        LogicalPlan lp = planTester.buildPlan(query);

        LOJoin join = (LOJoin)lp.getLeaves().get(0);
        assertTrue(join.getRelevantInputs(0, 0) == null);
    }
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    @Test
    public void testQueryFRJoinOnStarWithSchema() throws FrontendException {
        String query = "c = join (load 'a' as (url, hitcount)) by *, (load 'b' as (url, rank)) by * using \"replicated\";";
        LogicalPlan lp = planTester.buildPlan(query);

        LOJoin frjoin = (LOJoin)lp.getLeaves().get(0);
        RequiredFields frjoinRelevantFields0 = frjoin.getRelevantInputs(0, 0).get(0);
        assertTrue(frjoinRelevantFields0.getNeedAllFields() == false);
        assertTrue(frjoinRelevantFields0.getNeedNoFields() == false);
        assertTrue(frjoinRelevantFields0.getFields().size() == 1);
        assertTrue(frjoinRelevantFields0.getFields().get(0).first == 0);
        assertTrue(frjoinRelevantFields0.getFields().get(0).second == 0);
       
        assertTrue(frjoin.getRelevantInputs(0, 0).get(1)==null);
       
        RequiredFields frjoinRelevantFields1 = frjoin.getRelevantInputs(0, 1).get(0);
        assertTrue(frjoinRelevantFields1.getNeedAllFields() == false);
        assertTrue(frjoinRelevantFields1.getNeedNoFields() == false);
        assertTrue(frjoinRelevantFields1.getFields().size() == 1);
        assertTrue(frjoinRelevantFields1.getFields().get(0).first == 0);
        assertTrue(frjoinRelevantFields1.getFields().get(0).second == 1);
       
        assertTrue(frjoin.getRelevantInputs(0, 1).get(1)==null);
       
        RequiredFields frjoinRelevantFields2 = frjoin.getRelevantInputs(0, 2).get(1);
        assertTrue(frjoinRelevantFields2.getNeedAllFields() == false);
        assertTrue(frjoinRelevantFields2.getNeedNoFields() == false);
        assertTrue(frjoinRelevantFields2.getFields().size() == 1);
        assertTrue(frjoinRelevantFields2.getFields().get(0).first == 1);
        assertTrue(frjoinRelevantFields2.getFields().get(0).second == 0);
       
        assertTrue(frjoin.getRelevantInputs(0, 2).get(0)==null);
       
        RequiredFields frjoinRelevantFields3 = frjoin.getRelevantInputs(0, 3).get(1);
        assertTrue(frjoinRelevantFields3.getNeedAllFields() == false);
        assertTrue(frjoinRelevantFields3.getNeedNoFields() == false);
        assertTrue(frjoinRelevantFields3.getFields().size() == 1);
        assertTrue(frjoinRelevantFields3.getFields().get(0).first == 1);
        assertTrue(frjoinRelevantFields3.getFields().get(0).second == 1);
       
        assertTrue(frjoin.getRelevantInputs(0, 3).get(0)==null);
       
        assertTrue(frjoin.getRelevantInputs(0, 4)==null);
    }
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    @Test
    public void testQueryJoinOnStarWithSchema() throws FrontendException {
        String query = "c = join (load 'a' as (url, hitcount)) by *, (load 'b' as (url, rank)) by *;";
        LogicalPlan lp = planTester.buildPlan(query);

        LOJoin join = (LOJoin)lp.getLeaves().get(0);
        RequiredFields joinRelevantFields0 = join.getRelevantInputs(0, 0).get(0);
        assertTrue(joinRelevantFields0.getNeedAllFields() == false);
        assertTrue(joinRelevantFields0.getNeedNoFields() == false);
        assertTrue(joinRelevantFields0.getFields().size() == 1);
        assertTrue(joinRelevantFields0.getFields().get(0).first == 0);
        assertTrue(joinRelevantFields0.getFields().get(0).second == 0);
       
        assertTrue(join.getRelevantInputs(0, 0).get(1)==null);
       
        RequiredFields joinRelevantFields1 = join.getRelevantInputs(0, 1).get(0);
        assertTrue(joinRelevantFields1.getNeedAllFields() == false);
        assertTrue(joinRelevantFields1.getNeedNoFields() == false);
        assertTrue(joinRelevantFields1.getFields().size() == 1);
        assertTrue(joinRelevantFields1.getFields().get(0).first == 0);
        assertTrue(joinRelevantFields1.getFields().get(0).second == 1);
       
        assertTrue(join.getRelevantInputs(0, 1).get(1)==null);
       
        RequiredFields joinRelevantFields2 = join.getRelevantInputs(0, 2).get(1);
        assertTrue(joinRelevantFields2.getNeedAllFields() == false);
        assertTrue(joinRelevantFields2.getNeedNoFields() == false);
        assertTrue(joinRelevantFields2.getFields().size() == 1);
        assertTrue(joinRelevantFields2.getFields().get(0).first == 1);
        assertTrue(joinRelevantFields2.getFields().get(0).second == 0);
       
        assertTrue(join.getRelevantInputs(0, 2).get(0)==null);
       
        RequiredFields joinRelevantFields3 = join.getRelevantInputs(0, 3).get(1);
        assertTrue(joinRelevantFields3.getNeedAllFields() == false);
        assertTrue(joinRelevantFields3.getNeedNoFields() == false);
        assertTrue(joinRelevantFields3.getFields().size() == 1);
        assertTrue(joinRelevantFields3.getFields().get(0).first == 1);
        assertTrue(joinRelevantFields3.getFields().get(0).second == 1);
       
        assertTrue(join.getRelevantInputs(0, 3).get(0)==null);
       
        assertTrue(join.getRelevantInputs(0, 4)==null);
    }
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Related Classes of org.apache.pig.impl.logicalLayer.LOJoin

  • org.apache.pig.impl.logicalLayer.optimizer.LogicalTransformer
  • org.apache.pig.impl.logicalLayer.optimizer.SchemaRemover
  • org.apache.pig.impl.logicalLayer.schema.Schema
  • org.apache.pig.impl.logicalLayer.schema.Schema.FieldSchema
  • org.apache.pig.impl.plan.ProjectionMap
  • org.apache.pig.impl.plan.RequiredFields
  • org.apache.pig.test.TestRelevantFields
  • org.apache.pig.impl.plan.PlanException
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