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5mins of Postgres E49: Speed up Postgres queries with UNIONs and subquery pull-up
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Today, we are looking at Postgres UNION vs. OR and are investigating if using UNION is always the better choice. Answer: It is not.
*Find the article on our blog here:*
*Learn more about pganalyze:*
*Check out the pganalyze library for eBooks, webinars, and more:*
📑 *What we have discussed in this episode of 5mins of Postgres:*
*UNION ALL, data types and performance - by Laurenz Albe*
*Avoiding “OR” for better query performance - by Laurenz Albe*
*Rewrite OR to UNION in PostgreSQL queries - by Laurenz Able*
*Laurenz Able on GitHub*
*Find the article on our blog here:*
*Learn more about pganalyze:*
*Check out the pganalyze library for eBooks, webinars, and more:*
📑 *What we have discussed in this episode of 5mins of Postgres:*
*UNION ALL, data types and performance - by Laurenz Albe*
*Avoiding “OR” for better query performance - by Laurenz Albe*
*Rewrite OR to UNION in PostgreSQL queries - by Laurenz Able*
*Laurenz Able on GitHub*
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