Examples with OrderDef org.apache.hadoop.hive.ql.plan.ptf.OrderDef used on opensource projects

Example 1 with OrderDef

use of org.apache.hadoop.hive.ql.plan.ptf.OrderDef in project hive by apache.

the class MultiValueBoundaryScanner method getScanner.

public static ValueBoundaryScanner getScanner(WindowFrameDef winFrameDef) throws HiveException {
    OrderDef orderDef = winFrameDef.getOrderDef();
    int numOrders = orderDef.getExpressions().size();
    if (numOrders != 1) {
        return new MultiValueBoundaryScanner(winFrameDef.getStart(), winFrameDef.getEnd(), orderDef);
    } else {
        return SingleValueBoundaryScanner.getScanner(winFrameDef.getStart(), winFrameDef.getEnd(), orderDef);
    }
}

Example 2 with OrderDef

use of org.apache.hadoop.hive.ql.plan.ptf.OrderDef in project hive by apache.

the class PTFTranslator method buildOrderExpressions.

/**
 * Collect order expressions for RANGE based windowing
 * @throws SemanticException
 */
private OrderDef buildOrderExpressions(ShapeDetails inpShape, List<OrderExpression> orderExpressions) throws SemanticException {
    OrderDef orderDef = new OrderDef();
    for (OrderExpression oe : orderExpressions) {
        PTFTranslator.validateNoLeadLagInValueBoundarySpec(oe.getExpression());
        PTFExpressionDef exprDef = null;
        try {
            exprDef = buildExpressionDef(inpShape, oe.getExpression());
        } catch (HiveException he) {
            throw new SemanticException(he);
        }
        PTFTranslator.validateValueBoundaryExprType(exprDef.getOI());
        OrderExpressionDef orderExprDef = new OrderExpressionDef(exprDef);
        orderExprDef.setOrder(oe.getOrder());
        orderExprDef.setNullOrder(oe.getNullOrder());
        orderDef.addExpression(orderExprDef);
    }
    return orderDef;
}

Example 3 with OrderDef

use of org.apache.hadoop.hive.ql.plan.ptf.OrderDef in project hive by apache.

the class PTFTranslator method translatePartitioning.

private void translatePartitioning(PartitionedTableFunctionDef def, PartitionedTableFunctionSpec spec) throws SemanticException {
    applyConstantPartition(spec);
    if (spec.getPartition() == null) {
        return;
    }
    PartitionDef partDef = translate(def.getRawInputShape(), spec.getPartition());
    OrderDef orderDef = translate(def.getRawInputShape(), spec.getOrder(), partDef);
    def.setPartition(partDef);
    def.setOrder(orderDef);
}

Example 4 with OrderDef

use of org.apache.hadoop.hive.ql.plan.ptf.OrderDef in project hive by apache.

the class MultiValueBoundaryScanner method getScanner.

public static ValueBoundaryScanner getScanner(WindowFrameDef winFrameDef, boolean nullsLast) throws HiveException {
    OrderDef orderDef = winFrameDef.getOrderDef();
    int numOrders = orderDef.getExpressions().size();
    if (numOrders != 1) {
        return MultiValueBoundaryScanner.getScanner(winFrameDef.getStart(), winFrameDef.getEnd(), orderDef, nullsLast);
    } else {
        return SingleValueBoundaryScanner.getScanner(winFrameDef.getStart(), winFrameDef.getEnd(), orderDef, nullsLast);
    }
}

Example 5 with OrderDef

use of org.apache.hadoop.hive.ql.plan.ptf.OrderDef in project hive by apache.

the class PTFTranslator method translate.

private OrderDef translate(ShapeDetails inpShape, OrderSpec spec, PartitionDef partitionDef) throws SemanticException {
    OrderDef def = new OrderDef();
    if (null == spec) {
        return def;
    }
    for (OrderExpression oExpr : spec.getExpressions()) {
        OrderExpressionDef oexpDef = translate(inpShape, oExpr);
        def.addExpression(oexpDef);
    }
    return def;
}