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Construction site crane building a blue SQL 3D text.

Get the Row Count from an Outer Table Join

James Knicely, Vertica Field Chief Technologist
October 22, 2019

Aggregate functions summarize data over groups of rows from a query result set. When using an aggregate function like COUNT with an "*" or "1" parameter value, you may get a different result when the query implements a LEFT join verses an INNER join. If you want a row count of just the rows from...

The Benefits of Single Node Queries

Sumeet Keswani
August 19, 2015

If your organization deals with low latency, high concurrency applications and queries, you can benefit from having as few nodes as possible involved in each query.

What Is a Range Join and Why Is It So Fast?

ChuckB
January 20, 2015

Last week, I was at the 2015 Conference on Innovative Data Systems Research (CIDR), held at the beautiful Asilomar Conference Grounds. The picture above shows one of the many gorgeous views you won't see when you watch other people do PowerPoint presentations. One Vertica user at the conference said he saw a ?range join? in...