Projection

DynamoDB: adding a Local covering index to reduce the cost

By Franck Pachot . This is a continuation on the previous post on DynamoDB: adding a Global Covering Index to reduce the cost. I have a DynamoDB partitioned on “MyKeyPart”,”MyKeySort” and I have many queries(…)

DynamoDB: adding a Global covering index to reduce the cost

By Franck Pachot . People often think of indexes as a way to optimize row filtering (“get item” faster and cheaper). But indexes are also about columns (“attribute projection”) like some kind of vertical partitioning. In relational (“SQL”) databases(…)

Documentum – Beware of long hostnames for the Docbroker

Recently, I’ve been facing an issue more and more frequently where a Repository cannot register itself to a local/remote Docbroker. The root cause of the issue is simply that the hostname used for the projection to the Docbroker is too(…)

Documentum – RCS 7.3 – Issue with projections?

In the last two blogs I posted, I mentioned that I was working on silent installations with CS 7.3 (in HA). The “issue” (it’s more like a common mistake) I will describe in this blog is linked to the HA installation.