Examples with VectorElt org.apache.hadoop.hive.ql.exec.vector.expressions.VectorElt used on opensource projects

Example 1 with VectorElt

use of org.apache.hadoop.hive.ql.exec.vector.expressions.VectorElt in project hive by apache.

the class VectorizationContext method getEltExpression.

private VectorExpression getEltExpression(List<ExprNodeDesc> childExpr, TypeInfo returnType) throws HiveException {
    int[] inputColumns = new int[childExpr.size()];
    VectorExpression[] vectorChildren = getVectorExpressions(childExpr, VectorExpressionDescriptor.Mode.PROJECTION);
    final int size = vectorChildren.length;
    TypeInfo[] inputTypeInfos = new TypeInfo[size];
    DataTypePhysicalVariation[] inputDataTypePhysicalVariations = new DataTypePhysicalVariation[size];
    int i = 0;
    for (VectorExpression ve : vectorChildren) {
        inputColumns[i] = ve.getOutputColumnNum();
        inputTypeInfos[i] = ve.getOutputTypeInfo();
        inputDataTypePhysicalVariations[i++] = ve.getOutputDataTypePhysicalVariation();
    }
    final int outputColumnNum = ocm.allocateOutputColumn(returnType);
    VectorElt vectorElt = new VectorElt(inputColumns, outputColumnNum);
    vectorElt.setChildExpressions(vectorChildren);
    vectorElt.setInputTypeInfos(inputTypeInfos);
    vectorElt.setInputDataTypePhysicalVariations(inputDataTypePhysicalVariations);
    vectorElt.setOutputTypeInfo(returnType);
    vectorElt.setOutputDataTypePhysicalVariation(DataTypePhysicalVariation.NONE);
    freeNonColumns(vectorChildren);
    return vectorElt;
}