Gords thoughts on quant, math and software creation. Web search 30 million rows sub-second, cheaply. February 10, 2015 in database. The database is 30 Million rows. And performance is getting slower. Users want to search for stuff. It needs to have an api which the mobile app developers can use.

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Good writeup on patterns on wiki. A flyweight factory is just a cache of common objects- with public methods which can do things for you. Instead of creating new objects each time, use the flyweight factory to get an instance of an object- which has some common attributes and which also has a method for use to return unique attributes. Perl Array Efficiency Questions Answered.

Market may open slightly higher. Market may open lower on weak Asian. Market may edge higher in early tra. Market may edge lower in early trad.