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Tag: table

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Here you can find all blog posts about the Tag: table. You can go back to all blog posts or take a look into our other categories & tags.

Why "SELECT * FROM table" is NOT a read

by Hans-Jürgen Schönig | 09.2024
People tend to think that a SELECT-operation is always a read. This might look obvious and make sense but does it actually hold true?

Use HOT, so CLUSTER won't rot in PostgreSQL

by Laurenz Albe | 06.2023
CLUSTER is sometimes the last resort to squeeze performance out of an index scan. Normally, you have to repeat CLUSTER […]

Column order in PostgreSQL does matter

by Hans-Jürgen Schönig | 07.2022
Column order can determine how quickly your data is processed in PostgreSQL. Find out how to troubleshoot performance problems in wide tables

Entity-attribute-value (EAV) design in PostgreSQL - don't do it!

by Laurenz Albe | 11.2021
  Customers have often asked me what I think of “Entity-attribute-value” (EAV) design. So I thought it would be a […]

JSON in PostgreSQL: how to use it right

by Laurenz Albe | 09.2021
  The comprehensive JSON support in PostgreSQL is one of its best-loved features. Many people – particularly those with a […]

PostgreSQL: Sophisticated temporary tables

by Hans-Jürgen Schönig | 10.2020
There is more to temporary tables than meets the eye. Configure the lifespan of a temporary table and read more.

Understanding recursive queries in PostgreSQL

by Laurenz Albe | 08.2020
  Many people consider recursive queries a difficult topic. Still, they enable you to do things that would otherwise be […]

Composite type performance issues in PostgreSQL

by Hans-Jürgen Schönig | 06.2020
Table functions & performance: Solve performance issues related to stored procedures and or a composite data type in PostgreSQL

Tracking view dependencies in PostgreSQL

by Laurenz Albe | 09.2019
  We all know that in PostgreSQL we cannot drop an object if there are view dependencies on it: [crayon-676341c56d4b0778261043/] […]

CREATE VIEW vs ALTER TABLE in PostgreSQL

by Hans-Jürgen Schönig | 05.2018
A view is a virtual table based on a SQL statement. What happens if the data structure of the underlying PostgreSQL table changes?
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