Netsuite SuiteScript > Search Advance feature，搜索中使用 'OR' operation

Sample in online help

//Define search filter expression

var filterExpression =	[ [ 'trandate', 'onOrAfter', 'daysAgo90' ],
			   'or',
		　　　　　　[ 'projectedamount', 'between', 1000, 100000 ],
			   'or',
			  'not', ['customer.salesrep', 'anyOf', -5 ]  ] ;

//Define search columns
var columns = new Array();
columns[0] = new nlobjSearchColumn('salesrep');
columns[1] = new nlobjSearchColumn('expectedclosedate');
columns[2] = new nlobjSearchColumn('entity');

//Execute the search. You must specify the internal ID of the record type.
var searchresults = nlapiSearchRecord('opportunity', null, filterExpression, columns);

由于nlobjSearchFilter默认发出的都是‘AND’的指令，所以这个api，无法完成or的操作。

By default, search filter list (nlobjSearchFilter[]) makes use only of an implicit ‘AND' operator for filters. This is contrary to search filter expression that can explicitly use either ‘AND' or ‘OR' operators.

[ 'trandate', 'onOrAfter', 'daysAgo90' ],
'or',
[ 'projectedamount', 'between', 1000, 100000 ],

这种操作参数，直接不适用nlobjSearchFilter，而且没有reference其他record的功能；
整个API还是低于UI的USE EXPRESSIONS功能的。
所以另外方案
1。在UI上定义这类OR或者或者包含Parens的Search，然后suitescript去直接调用结果。
2。使用多个Search，消耗更多的unit来实现复杂的单个Search。