Vertica Blog

Vertica Blog

Vertica Blog

Machine Learning Mondays: Vertica 9.0 Cheat Sheet

This blog post was authored by Vincent Xu. Vertica 9.0 is out and here is the updated Vertica machine learning cheat sheet. Vertica 9.0 introduces a slew of new machine learning features including one-hot encoding, Lasso regression, cross validation, model import/export, and many more. See the cheat sheet for examples of how to use the...

What’s New in Vertica 9.0: Machine Learning Enhancements

This blog post was authored by Soniya Shah. Vertica 9.0 introduces new functionality that continues to match our goals for fast-paced development of the existing machine learning functions. In this release, we introduce two new summary functions, support for cross validation, support for one hot encoding, and the ability to import and export your models...

Vertica Deep Dive Comes to Boston: #OwnTheNew

This blog post was authored by Sarah Lemaire. Two weeks after the successful Deep Dive in Los Angeles, Boston-area Vertica users had the unique opportunity to meet with Sumeet Keswani and Shrirang Kamat from the Vertica Customer Experience Team. These two Vertica experts offered attendees tips for managing their Vertica environment for maximum performance. These...

What’s New in Vertica 9.0: Reading Parquet and ORC from S3

This blog post was authored by Monica Cellio. Parquet and ORC are widely-used Hadoop columnar file formats. Because these formats are columnar, they perform extremely well when queried as external tables in Vertica. Vertica queries implement column selection, predicate pushdown, and partition pruning. Vertica has supported reading Parquet and ORC data from HDFS or from...

Vertica 9

This blog post was authored by Steve Sarsfield. The Vertica development team has just released Version 9.0. With every major release it gives me time to not only look back and see what was developed this cycle, but a look at the entire timeline. I joined the Vertica team about 4 years ago in the...

What’s New in Vertica 9.0: Eon Mode Beta

This blog post was authored by Soniya Shah. What is Eon Mode Beta? With Vertica 9.0, you can run Vertica in Eon Mode Beta, using Amazon Web Services to capitalize on cloud economics while still enjoying the fast query processing for which Vertica is known. Running Vertica in Eon Mode Beta separates the computational processes...

What’s New in Vertica 9.0?

This blog post was authored by Soniya Shah. In Vertica 9.0, we introduce new functionality including: • Eon Mode Beta • Supported Platform Updates • Machine Learning Enhancements • Apache Hadoop Integration Updates • Partition Grouping and Hierarchical Partitioning • Browsing S3 Data Using External Tables • Support for the UUID Data Type Eon Mode...

CPU and Memory Starvation in SPREAD

This blog post was authored by Sumeet Keswani. What is Spread? Vertica uses an open source toolkit, Spread, to provide a high-performance control message service. Spread daemons start automatically when your database starts up for the first time. The spread daemons run on control nodes in your cluster. The control nodes manage message communication. On...

Effective vsql in Vertica

This blog post was authored by Maurizio Felici. vsql is included in each Vertica installation and is lightweight, with a tight integration with Vertica. Vsql is installed on every Vertica server and can also be installed on non-server hosts using the client package. Executing SQL commands through vsql is often faster than navigating GUI's menu....

Adding Nodes to Fault Groups

This blog post was authored by Sarah Lemaire. Suppose you are adding new cluster nodes to your Vertica database. You want to add those nodes to particular fault groups without having to restart your Vertica database. The following steps use the example of a database with five racks and fault groups, with 9 Vertica nodes...

Analytic Queries in Vertica

This blog post was authored by Soniya Shah. Analytic functions handle complex analysis and reporting tasks. Here are some example use cases for Vertica analytic functions: • Rank the longest standing customers in a particular state • Calculate the moving average of retail volume over a specific time • Find the highest score among all...

Working with Joins

This blog post was authored by Soniya Shah. Vertica supports a variety of join types. This post discusses the following joins: • Inner joins • Left, right, and full outer joins • Natural joins • Cross joins In Vertica, we refer to the tables participating in the join as left or right. The left table...