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Production memory usage

Given the following 2 scenarios:1) A real time inmemory tick database generally not queried to frequently 2) A database of mostly static tables to which users can place unconstrained querieswhat kind of max memory consumption does kx recommend for pr...

Optimizating csv import

The following program is parsing csv into in-memory table at about 22 MB/sec. I have repeated the benchmark a few times. The data is in the OS disk cache. The program is 1 core CPU-bound. My CPU is i5-3230M @ 2.60 GHz on a laptop. How can I make it f...

. (dot) Does Not Work with mod?

Hi,I'm facing a strange error with mod and . (dot) operators. Please see the session log below:===============SESSION=======================D:\DEV>qKDB+ 3.2 2015.03.05 Copyright (C) 1993-2015 Kx Systemsw32/ 4()core 4095MB Think flying-thinkpad 192.16...

Keyed table with no value columns

I want to define a "parent" table that has only a primary key as column. Trying this fails.q) p:([k:`$()]) 'parse So based on what I am reading in Q for mortals I came up with this:q) p:flip (enlist `k)!enlist `$()Is there no table definition syntax ...

C# and composite keys

I am using C# interface as described here: http://code.kx.com/wiki/Cookbook/InterfacingWithCSharpI have a q table that has a composite foreign key and I want to bulk insert into it. How do I pass the composite key column values?I tried Array of Array...

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