PostgreSQL has a rich set of indexing functionality, and there are many articles explaining the syntax, usage, and value of the index. In this article, I will write basic and useful queries to see the state of database indexes. People develop databases and after some time, when there is a demand to do changes […]
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The adoption and market share of PostgreSQL is growing at a rapid rate. And it’s not just new installations or applications – there are huge levels of migrations happening from other database systems as well. In this webinar, we will discuss the reasons for selection and migration to PostgreSQL, why it’s becoming a preferred […]
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We recently helped migrate a production PostgreSQL database running on a given DBaaS platform… to another DBaaS platform. When it comes to vendor “lock-in”, some providers are easier (and even friendlier) to deal with than others, but it is never a straightforward process. While in a traditional environment we would usually approach this problem […]
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This blog post is about how you can gain detailed information in Percona Monitoring and Management (PMM2) of PostgreSQL disk usage. We take a look at using a catalog called pg_class, which catalogs tables and most everything else that has columns or is otherwise similar to a table. This includes indexes, sequences, views, materialized views, […]
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What is NULL?
There is often some confusion about NULL value, as it is treated differently in different languages. So there is an obvious need to clarify what NULL is, how it works in different languages, and what the actual value is behind the NULL. Before going into details, there is also a need to […]
