Examples with DecomposedPredicate org.apache.hadoop.hive.ql.metadata.HiveStoragePredicateHandler.DecomposedPredicate used on opensource projects

Example 6 with DecomposedPredicate

use of org.apache.hadoop.hive.ql.metadata.HiveStoragePredicateHandler.DecomposedPredicate in project hive by apache.

the class AccumuloPredicateHandler method decompose.

/**
 * @param conf
 *          Configuration
 * @param desc
 *          predicate expression node.
 * @return DecomposedPredicate containing translated search conditions the analyzer can support.
 */
public DecomposedPredicate decompose(Configuration conf, ExprNodeDesc desc) {
    IndexPredicateAnalyzer analyzer = newAnalyzer(conf);
    List<IndexSearchCondition> sConditions = new ArrayList<IndexSearchCondition>();
    ExprNodeDesc residualPredicate = analyzer.analyzePredicate(desc, sConditions);
    if (sConditions.size() == 0) {
        LOG.info("nothing to decompose. Returning");
        return null;
    }
    DecomposedPredicate decomposedPredicate = new DecomposedPredicate();
    decomposedPredicate.pushedPredicate = analyzer.translateSearchConditions(sConditions);
    decomposedPredicate.residualPredicate = (ExprNodeGenericFuncDesc) residualPredicate;
    return decomposedPredicate;
}