Examples of org.apache.pig.impl.logicalLayer.optimizer.OpLimitOptimizer

Package org.apache.pig.impl.logicalLayer.optimizer

Examples of org.apache.pig.impl.logicalLayer.optimizer.OpLimitOptimizer

org.apache.pig.impl.logicalLayer.optimizer.OpLimitOptimizer
A visitor to discover if any schema has been specified for a file being loaded. If so, a projection will be injected into the plan to cast the data being loaded to the appropriate types. The optimizer can then come along and move those casts as far down as possible, or in some cases remove them altogether. This visitor does not handle finding the schemas for the file, that has already been done as part of parsing.


    @Test
    //Test to ensure that the right exception is thrown
    public void testErrOpLimitOptimizer() throws Exception {
      org.apache.pig.impl.logicalLayer.LogicalPlan lp = new org.apache.pig.impl.logicalLayer.LogicalPlan();
        OpLimitOptimizer olo = new OpLimitOptimizer(lp);
        try {
            olo.transform(lp.getRoots());
        } catch(Exception e) {
            Assert.assertTrue(((OptimizerException)e).getErrorCode() == 2052);
        }
    }

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    @Test
    //Test to ensure that the right exception is thrown
    public void testErrOpLimitOptimizer() throws Exception {
        LogicalPlan lp = new LogicalPlan();
        OpLimitOptimizer olo = new OpLimitOptimizer(lp);
        try {
            olo.transform(lp.getRoots());
        } catch(Exception e) {
            assertTrue(((OptimizerException)e).getErrorCode() == 2052);
        }
    }

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    @Test
    //Test to ensure that the right exception is thrown
    public void testErrOpLimitOptimizer() throws Exception {
        LogicalPlan lp = new LogicalPlan();
        OpLimitOptimizer olo = new OpLimitOptimizer(lp);
        try {
            olo.transform(lp.getRoots());
        } catch(Exception e) {
            assertTrue(((OptimizerException)e).getErrorCode() == 2052);
        }
    }

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Related Classes of org.apache.pig.impl.logicalLayer.optimizer.OpLimitOptimizer

org.apache.pig.impl.logicalLayer.LOForEach

org.apache.pig.impl.logicalLayer.LogicalOperator

org.apache.pig.impl.logicalLayer.LOLimit

org.apache.pig.impl.logicalLayer.LOSort

org.apache.pig.impl.plan.OperatorKey

org.apache.pig.test.TestLogicalOptimizer

org.apache.pig.test.TestOptimizeLimit

org.apache.pig.impl.plan.optimizer.OptimizerException

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