Examples with IntervalPrimary com.alibaba.cobar.parser.ast.expression.primary.literal.IntervalPrimary used on opensource projects

Example 1 with IntervalPrimary

use of com.alibaba.cobar.parser.ast.expression.primary.literal.IntervalPrimary in project cobar by alibaba.

the class MySQLExprParser method intervalExpression.

/**
 * first <code>INTERVAL</code> has been consumed
 */
private Expression intervalExpression() throws SQLSyntaxErrorException {
    Expression fstExpr;
    List<Expression> argList = null;
    if (lexer.token() == PUNC_LEFT_PAREN) {
        if (lexer.nextToken() == KW_SELECT) {
            fstExpr = subQuery();
            match(PUNC_RIGHT_PAREN);
        } else {
            fstExpr = expression();
            if (lexer.token() == PUNC_COMMA) {
                lexer.nextToken();
                argList = new LinkedList<Expression>();
                argList.add(fstExpr);
                argList = expressionList(argList);
            } else {
                match(PUNC_RIGHT_PAREN);
            }
        }
    } else {
        fstExpr = expression();
    }
    if (argList != null) {
        return new Interval(argList).setCacheEvalRst(cacheEvalRst);
    }
    return new IntervalPrimary(fstExpr, intervalPrimaryUnit()).setCacheEvalRst(cacheEvalRst);
}

Example 2 with IntervalPrimary

use of com.alibaba.cobar.parser.ast.expression.primary.literal.IntervalPrimary in project cobar by alibaba.

the class MySQLOutputASTVisitor method visit.

@Override
public void visit(IntervalPrimary node) {
    appendable.append("INTERVAL ");
    Expression quantity = node.getQuantity();
    boolean paren = quantity.getPrecedence() < node.getPrecedence();
    if (paren)
        appendable.append('(');
    quantity.accept(this);
    if (paren)
        appendable.append(')');
    IntervalPrimary.Unit unit = node.getUnit();
    appendable.append(' ').append(unit.name());
}