Vertica Blog

Vertica Blog

Projections

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Vertica Version 10 Launches Today!

There’s , on the first day of the – a major new version of Vertica blasts off! Vertica version 10 soars straight into the greatest deployment flexibility of any analytical data warehouse on the market. This fast and extremely scalable platform gives you more power than ever to get industry-changing analytics, including even more advanced...
Global Partitions

Optimizing Vertica Data With Partitions

How do partitions affect overall Vertica operations? Let’s look at a snapshot of the Flight Data Tracker dataset and compare performance ...
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Hands-on Class Makes Parallel Data Management Theories Concrete

Parallel data management in databases is a tough thing to learn when you’re a student. It can feel like another one of those esoteric theories, and it never quite sticks. Now, there’s a cool class at Brandeis University that brings those lofty theories down to earth, and gives students a real chance to see how...

Announcing Vertica 9.3 Instructor-Led Training Courses

Just in time for the release of version 9.3, Vertica is pleased to announce the release of two updated instructor-led training courses: Vertica 9.3 Essentials and Vertica 9.3 Descriptive Analytics. A description of each course follows: Vertica 9.3 Essentials This 4-day course explores the capabilities of the Vertica platform solution in Enterprise mode, and prepares...

Are Your Columns too Wide?

This tip expands on the earlier post on encoding and compression at When you have millions to billions of rows, data type becomes a bit more important: even an extra 10 bytes per row across a huge data set will impact storage or performance (or both!). When I created the big_fact_table, I included some VARCHAR...

Checking and Improving Column Compression and Encoding

When working with terabytes of data, storage and transfer become major time and cost sinks. Vertica can help minimize storage cost and transfer time with column compression and encoding. How can we identify Vertica tables that might benefit from compression? Information about column size and current compression is stored across column_storage and projection_columns table. The...
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Vertica 9.3 Supports UPDATE and DELETE Operations on Tables Having Live Aggregate Projections!

A live aggregate projection contains columns with values that are aggregated from columns in its anchor table. When you load data into the table, Vertica aggregates the data before loading it into the live aggregate projection. On subsequent loads (for example, through INSERT or COPY) Vertica recalculates aggregations with the new data and updates the...
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Announcing Vertica Version 9.3 – Ride the Winds of Change

The have been blowing strong. This week, Vertica version 9.3 made its big splash. Vertica has a tendency to pack a lot of features even into minor releases, and this is not a minor release. Rather than dive deep, I’m going to skim the surface of the ocean of new features. Eon Mode Improvements Eon...
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The Vertica Academy Is Open for Learning

One of the greatest impacts from digital transformation, both from a personal and professional point of view, is not just the democratization of data - a very popular topic here at Vertica! - but the democratization of knowledge. Today, we are excited to announce the new, a platform that offers self-paced, technical training and certifications...

Setting the Table-Level Active Partition Count: Quick Tip

Jim Knicely authored this tip. The Tuple Mover assumes that all loads and updates to a partitioned table are targeted to one or more partitions that it identifies as active. In general, the partitions with the largest partition keys—typically, the most recently created partitions—are regarded as active. As the partition ages, it commonly transitions to...

Master Blog Series: Getting Started with Vertica

This post was authored by Soniya Shah. Are you a new Vertica user? If so, you're probably wondering where to start. We're here to help you on your big data analytics journey, from understanding Vertica terminology to making the most of your resources. If you find yourself asking questions like What does the Tuple Mover...

Summarize a Table’s Projections: Quick Tip

Jim Knicely authored this tip. Use the built-in Vertica function GET_TABLE_PROJECTIONS to quickly summarize the details of all of the projections of a Vertica table. dbadmin=> \t Showing only tuples. dbadmin=> SELECT get_table_projections('public.jim'); Current system K is 1. # of Nodes: 3. Table public.jim has 3 projections. Projection Name: [Segmented] [Seg Cols] [# of Buddies]...