[MDEV-15414] Document MDEV-7773 Aggregate functions Created: 2018-02-24  Updated: 2018-02-25

Status: Open
Project: MariaDB Server
Component/s: Documentation
Affects Version/s: 10.3
Fix Version/s: N/A

Type: Bug Priority: Major
Reporter: Ian Gilfillan Assignee: Ian Gilfillan
Resolution: Unresolved Votes: 0
Labels: None


 Comments   
Comment by Ian Gilfillan [ 2018-02-24 ]

See http://varunraiko.github.io/aggregate-functions/

Comment by Varun Gupta (Inactive) [ 2018-02-24 ]

see: https://docs.google.com/presentation/d/1qj76WNTQSOgwCgSDieGycaHxkRGqaOGb8CCJUbm9QwM/edit?usp=drivesdk

Comment by Sergei Golubchik [ 2018-02-25 ]

See also this presentation (starting from the slide 79).

It explains the logic of the syntax by drawing parallels to 100% standard syntax of non-aggregate stored functions (that calculate an aggregate function of some column in a table).

And contains a non-trivial example at the end, something you cannot rewrite in terms of SUM, AVG, COUNT, etc.

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