Examples with ConvertDecimal64ToDecimal org.apache.hadoop.hive.ql.exec.vector.expressions.ConvertDecimal64ToDecimal used on opensource projects

Example 1 with ConvertDecimal64ToDecimal

use of org.apache.hadoop.hive.ql.exec.vector.expressions.ConvertDecimal64ToDecimal in project hive by apache.

the class Vectorizer method fixDecimalDataTypePhysicalVariations.

private static VectorExpression fixDecimalDataTypePhysicalVariations(final VectorExpression parent, final VectorExpression[] children, final VectorizationContext vContext) throws HiveException {
    if (children == null || children.length == 0) {
        return parent;
    }
    for (int i = 0; i < children.length; i++) {
        VectorExpression child = children[i];
        VectorExpression newChild = fixDecimalDataTypePhysicalVariations(child, child.getChildExpressions(), vContext);
        if (child.getClass() == newChild.getClass() && child != newChild) {
            children[i] = newChild;
        }
    }
    if (parent.getOutputDataTypePhysicalVariation() == DataTypePhysicalVariation.NONE && !(parent instanceof ConvertDecimal64ToDecimal)) {
        boolean inputArgsChanged = false;
        DataTypePhysicalVariation[] dataTypePhysicalVariations = parent.getInputDataTypePhysicalVariations();
        for (int i = 0; i < children.length; i++) {
            // we found at least one children with mismatch
            if (children[i].getOutputDataTypePhysicalVariation() == DataTypePhysicalVariation.DECIMAL_64) {
                children[i] = vContext.wrapWithDecimal64ToDecimalConversion(children[i]);
                inputArgsChanged = true;
                dataTypePhysicalVariations[i] = DataTypePhysicalVariation.NONE;
            }
        }
        // fix up the input column numbers and output column numbers
        if (inputArgsChanged) {
            if (parent instanceof VectorUDFAdaptor) {
                VectorUDFAdaptor parentAdaptor = (VectorUDFAdaptor) parent;
                VectorUDFArgDesc[] argDescs = parentAdaptor.getArgDescs();
                for (int i = 0; i < argDescs.length; ++i) {
                    if (argDescs[i].getColumnNum() != children[i].getOutputColumnNum()) {
                        argDescs[i].setColumnNum(children[i].getOutputColumnNum());
                        break;
                    }
                }
            } else {
                Object[] arguments;
                int argumentCount = children.length + (parent.getOutputColumnNum() == -1 ? 0 : 1);
                // Need to handle it as a special case to avoid instantiation failure.
                if (parent instanceof VectorCoalesce) {
                    arguments = new Object[2];
                    arguments[0] = new int[children.length];
                    for (int i = 0; i < children.length; i++) {
                        VectorExpression vce = children[i];
                        ((int[]) arguments[0])[i] = vce.getOutputColumnNum();
                    }
                    arguments[1] = parent.getOutputColumnNum();
                } else {
                    if (parent instanceof DecimalColDivideDecimalScalar) {
                        arguments = new Object[argumentCount + 1];
                        arguments[children.length] = ((DecimalColDivideDecimalScalar) parent).getValue();
                    } else {
                        arguments = new Object[argumentCount];
                    }
                    for (int i = 0; i < children.length; i++) {
                        VectorExpression vce = children[i];
                        arguments[i] = vce.getOutputColumnNum();
                    }
                }
                // retain output column number from parent
                if (parent.getOutputColumnNum() != -1) {
                    arguments[arguments.length - 1] = parent.getOutputColumnNum();
                }
                // re-instantiate the parent expression with new arguments
                VectorExpression newParent = vContext.instantiateExpression(parent.getClass(), parent.getOutputTypeInfo(), parent.getOutputDataTypePhysicalVariation(), arguments);
                newParent.setOutputTypeInfo(parent.getOutputTypeInfo());
                newParent.setOutputDataTypePhysicalVariation(parent.getOutputDataTypePhysicalVariation());
                newParent.setInputTypeInfos(parent.getInputTypeInfos());
                newParent.setInputDataTypePhysicalVariations(dataTypePhysicalVariations);
                newParent.setChildExpressions(parent.getChildExpressions());
                return newParent;
            }
        }
    }
    return parent;
}