Many PostgreSQL features are not available in Redshift, particularly those that are not suitable for a database cluster or for analytics, and those that Amazon didn’t consider important enough to spend the necessary resources to maintain them.
Vettabase Blog
Read our expert blog with articles on MariaDB, MySQL, PostgreSQL, Cassandra and related tools & technologies.
In MariaDB and MySQL, all tables should have a primary key – especially InnoDB tables. Here's why.
Updating triggers in production without causing a service disruption
Does NULL mean "no value"? Or does it mean "an unknown value"? Its semantics and history are ambiguous and inconsistent.
It is possible to prevent some users from seeing a set of rows in a certain table.
MariaDB implemented several improvements to the DROP TABLE statement. We summarise them here. This article will be kept up to date when MariaDB implements further improvements, in the future.
MariaDB supports RETURNING statements, that can save one query making our applications faster and reducing server source usage.
Though I have many things to write, I'll keep this post short and avoid it to be auto-congratulatory.
Long ...
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