Examples of org.apache.phoenix.expression.StringConcatExpression.evaluate()

        for (Expression child:children) {
            isLiteralExpression&=(child instanceof LiteralExpression);
        }
        ImmutableBytesWritable ptr = context.getTempPtr();
        if (isLiteralExpression) {
            expression.evaluate(null,ptr);
            return LiteralExpression.newConstant(expression.getDataType().toObject(ptr));
        }
        return wrapGroupByExpression(expression);
    }

                .setMessage("Concatenation does not support "+ type +" in expression" + node).build().buildException();
            }
        }
        ImmutableBytesWritable ptr = context.getTempPtr();
        if (expression.isStateless()) {
            if (!expression.evaluate(null,ptr) || ptr.getLength() == 0) {
                return LiteralExpression.newConstant(null, expression.getDataType(), expression.isDeterministic());
            }
            return LiteralExpression.newConstant(expression.getDataType().toObject(ptr), expression.getDataType(), expression.isDeterministic());
        }
        return wrapGroupByExpression(expression);

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