Sathish Vadivel·Oct 24KDB+/q - OptimizationIn KDB+/q, there is often more than one way to express the same operation. However, equivalent results do not always come with equivalent…
Jonathan Kane·Oct 19C Interface for Q — Part 2In Part 1, we looked at the Q object (QObj) and at the simplest values it can hold: atoms, and lists of plain C values such as longs or…
Sathish Vadivel·Sep 26Advantage of q Functional Queries in kdb+One of the powerful features of kdb+/q is its ability to express the same operation in different ways. A good example is selecting rows…
Jonathan Kane·Sep 25C Interface for Q — Part 1Q is fast, but sometimes you need to reach outside it: to call an existing C library, to speed up a hot loop, or to talk to a Q process…
