Link Details

Link 834519 thumbnail
User 478055 avatar

By mitchp
Published: Aug 16 2012 / 09:20

Logging tables are usually at the periphery of a design effort, sometimes added as an after-thought. Usually, a logging table has a large number of rows and many optional columns, most containing NULLs. In addition, because ALTER TABLE statements become expensive in a production system, these tables often include some kind of a serialized array (JSON, CSV) for all the optional fields. In otherwise well engineered systems, these logging tables stick out as an embarrassing mess.
  • 8
  • 0
  • 793
  • 1199

Add your comment

Html tags not supported. Reply is editable for 5 minutes. Use [code lang="java|ruby|sql|css|xml"][/code] to post code snippets.

Apache Hadoop
Written by: Piotr Krewski
Featured Refcardz: Top Refcardz:
  1. Play
  2. Akka
  3. Design Patterns
  4. OO JS
  5. Cont. Delivery
  1. Play
  2. Java Performance
  3. Akka
  4. REST
  5. Java