PostgreSQL Optimizer Methodology (Robert Haas)

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CMU Database Group - Vaccination Database Tech Talks (2021)
Speakers: Robert Haas (EnterpriseDB)
PostgreSQL Optimizer Methodology

June 7, 2021

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excellent prepared dive into difficult topics. take away: consider the costs of normalization.
thx also to andy pavlo and cmu for making this series public available.

seldasorf
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IN 29:11 "where a = 1" what percentage is considered common?

jianhe
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Does Andy say that the number of joins grows as 4 to the n? Isn't it slower than factorial?

Paul-fnwb
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I don't know if it's just me, but Postgres looks like one of the most impenetrable codebases in the open source world. This lecture helped! Wish we could have gone deeper into the query optimizer. Thank you CMU for uploading this!

shikharraje