Help
kdb+ and q
Q+A on all things kdb+ database and the q language
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Start a conversation

Resolved! update column name in partitioned table

I have a partitioned table t with columns date, class, nan. I want to update the column "nan" to "name".I am trying this: `date`class`name xcol t This is not working. Please help me out here guys:)

KB by • New Contributor
  • 382 Views
  • 1 replies
  • 0 kudos

Resolved! Running user defined aggregation on partitioned tables

Hello I want to run a user defined aggregating function getPercentile (to get say 99% or 50% or 1% percentile of a list of value) on a partitioned table. From this link map-reduce , only few types of aggregation can KDB decompose into map step and re...

lzl by • New Contributor II
  • 494 Views
  • 1 replies
  • 0 kudos
Labels
Main Office Contacts

EMEA
Tel: +44 (0)28 3025 2242

AMERICAS
Tel: +1 (212) 447 6700

APAC
Tel: +61 (0)2 9236 5700

Useful Information
Resources
Popular Links
Follow Us

KX. All Rights Reserved.

KX and kdb+ are registered trademarks of KX Systems, Inc., a subsidiary of FD Technologies plc.

Privacy Policy

Export Statement

Terms of Use

Processing Notice