Maintenance solutions

Hi!

First post here for me. I wrote the question below on StackOverflow but 
it wasnt allowed and I was directed to these mailinglists.


 From Stack:
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Im currently an MSSQL DBA and have been for soon 2 decades. However, Im 
very curious about PostgreSQL and want to learn more. I have installed 
it etc but coming from MSSQL where the community is awesome I fail to 
find a good community for PG where I can ask these questions. Im used to 
free scriptpackages on MSSQL like Ola Hallengrens backup solution or 
Adam Machanics sp_whoisactive/Brent Ozar sp_blitz.

Im guessing (and hoping) that any such tools/scripts are available for 
PG but I fail to find it. Can anyone point me to either a nice tool like 
the ones mentioned above or a PG community that can help me out, or even 
better, to both?
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Big thanks in advance!

Kind regards,
Brian