Examples with CastParseNode org.apache.phoenix.parse.CastParseNode used on opensource projects

Example 1 with CastParseNode

use of org.apache.phoenix.parse.CastParseNode in project phoenix by apache.

the class ExpressionCompiler method visitLeave.

@Override
public Expression visitLeave(CastParseNode node, List<Expression> children) throws SQLException {
    ParseNode childNode = node.getChildren().get(0);
    PDataType targetDataType = node.getDataType();
    Expression childExpr = children.get(0);
    PDataType fromDataType = childExpr.getDataType();
    if (childNode instanceof BindParseNode) {
        context.getBindManager().addParamMetaData((BindParseNode) childNode, childExpr);
    }
    Expression expr = childExpr;
    if (fromDataType != null) {
        /*
             * IndexStatementRewriter creates a CAST parse node when rewriting the query to use
             * indexed columns. Without this check present we wrongly and unnecessarily
             * end up creating a RoundExpression. 
             */
        if (context.getCurrentTable().getTable().getType() != PTableType.INDEX) {
            expr = convertToRoundExpressionIfNeeded(fromDataType, targetDataType, children);
        }
    }
    boolean rowKeyOrderOptimizable = context.getCurrentTable().getTable().rowKeyOrderOptimizable();
    return wrapGroupByExpression(CoerceExpression.create(expr, targetDataType, SortOrder.getDefault(), expr.getMaxLength(), rowKeyOrderOptimizable));
}