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Eyal golan 2_pragsmall
16 Mar 2014, 23:46
Eyal Golan (1 post)

Hi, I really like this book and can’t wait progressing to the other DBs (the NoSQL ones).

Regarding the example of holidays VIEW and altering: In p. 31 (PDF), there’s the following update query, which suppose to give an error: UPDATE holidays SET colors = ‘{“red”,”green”}’ where name = ‘Christmas Day’;

Only after RULE it should work.

However, I didn’t get an error and events table was modified correctly. I did not ad the RULE yet.

I am using version 9.3.

So, how did events table modify w/o RULE?



30 Jun 2014, 22:00
Vijay Ramamurthy (1 post)

This is because the latest version of PostgreSQL (9.3) is the first to support the feature of updating views directly. The book teacher using RULEs as a workaround – but this workaround is unnecessary because of this new feature of 9.3. Long story short, version 9.3 of PostgreSQL made this section of the book outdated and inaccurate.

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