BRIN Archives - 2ndQuadrant

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BRIN for PostGIS: my story at the Code Sprint 2016 in Paris

March 2, 2016/0 Comments/in Giuseppe's PlanetPostgreSQL /by 2ndQuadrant Press

Last week I was pleased to attend Code Sprint 2016 in Paris, organised by the OSGeo Foundation: it has been an opportunity for many GIS users from all over the world to get together, discuss and actively work on many open tasks of some of the major open source frameworks on GIS. PostGIS was obviously […]

Index Overhead on a Growing Table

October 10, 2014/0 Comments/in Mark's PlanetPostgreSQL /by Mark Wong

This another simple test in continuation from last time. We will start with the same lineitem table as in the previous example. We will measure the time it takes to load the same 7.2GB text file repeatedly until the table size grows to about 1TB. We create a baseline with a table that has no indexes built on […]

Loading Tables and Creating B-tree and Block Range Indexes

October 3, 2014/2 Comments/in Mark's PlanetPostgreSQL /by Mark Wong

I have been looking at the new Block Range Indexes (BRIN) being developed for PostgreSQL 9.5. BRIN indexes are designed to provide similar benefits to partitioning, especially for large tables, just without the need to declare partitions. That sounds pretty good but let’s look in greater detail to see if it lives up to the hype. How large? Here’s […]

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