MySQL trim函数，使用ExportParameterVisitor提取变量参数错误 about druid HOT 1 OPEN

    public boolean visit(SQLMethodInvokeExpr x) {
        SQLExpr owner = x.getOwner();
        if (owner != null) {
            printMethodOwner(owner);
        }

        if (parameterized) {
            List<SQLExpr> arguments = x.getArguments();
            if (x.methodNameHashCode64() == FnvHash.Constants.TRIM
                    && arguments.size() == 1
                    && arguments.get(0) instanceof SQLCharExpr && x.getTrimOption() == null && x.getFrom() == null) {
                print('?');

                if (parameters != null) {
                    SQLCharExpr charExpr = (SQLCharExpr) arguments.get(0);
                    parameters.add(charExpr.getText().trim());
                }

                replaceCount++;
                return false;
            }
        }

        String function = x.getMethodName();
        if (function != null) {
            printFunctionName(function);
        }
        printMethodParameters(x);
        return false;
    }