Re: What does "[backends] should seldom or never need to wait for a write to occur" mean?

2020-11-09 Thread Bruce Momjian
On Tue, Nov 3, 2020 at 06:11:21PM +, Chris Wilson wrote: > Hi all, > > I did some more research and found this explanation in a presentation by > 2ndQuadrant: > > > When a process wants a buffer, it asks BufferAlloc for the file/block. If > the block is already cached, it gets pinne

Re: Addition to content

2020-11-09 Thread Tom Lane
PG Doc comments form writes: > I would be helpful to add that NULLIF and COALESCE need to be of same data > type. That's not actually a correct statement ... which I guess just reinforces your point that the behavior needs to be documented. regards, tom lane

Addition to content

2020-11-09 Thread PG Doc comments form
The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/13/functions-conditional.html Description: Hello I would be helpful to add that NULLIF and COALESCE need to be of same data type. Thank you