Package org.apache.pig.newplan

Examples of org.apache.pig.newplan.PColFilterExtractor.visit()

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          LogicalExpressionPlan filterExpr = loFilter.getFilterPlan();
          LogicalExpressionPlan filterExprCopy = filterExpr.deepCopy();
         
          PColFilterExtractor pColFilterFinder = new PColFilterExtractor(
                  filterExprCopy, getMappedKeys( partitionKeys ) );
          pColFilterFinder.visit();
          Expression partitionFilter = pColFilterFinder.getPColCondition();
         
          if(partitionFilter != null) {
            // the column names in the filter may be the ones provided by
            // the user in the schema in the load statement - we may need
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        LogicalPlan newLogicalPlan = Util.buildLp(pigServer, query);
        Operator op = newLogicalPlan.getSinks().get(0);
        LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);
        PColFilterExtractor pColExtractor = new PColFilterExtractor(
                filter.getFilterPlan(), partitionCols);
        pColExtractor.visit();

        if(expPartFilterString == null) {
            Assert.assertEquals("Checking partition column filter:", null,
                    pColExtractor.getPColCondition());
        } else  {
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        Operator op = newLogicalPlan.getSinks().get(0);
        LOFilter filter = (LOFilter)newLogicalPlan.getPredecessors(op).get(0);
        PColFilterExtractor pColExtractor = new PColFilterExtractor(
                filter.getFilterPlan(), partitionCols);
        try {
            pColExtractor.visit();
        } catch(Exception e) {
            Assert.assertEquals("Checking if exception has right error code",
                    expectedErrorCode, LogUtils.getPigException(e).getErrorCode());
            return;
        }
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