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psql: FATAL: role “postgres” does not exist
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With the newest brew install you can do brew services start postgresql to start postgres
– Automatico
Jan 20 '17 at 12:40
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Why does git perform fast-forward merges by default?
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Why does my application spend 24% of its life doing a null check?
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How are strings passed in .NET?
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How do 20 questions AI algorithms work?
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Is that kind of AI available as a service? What if I could provide all the questions and answers and let it find them?
– tggagne
Mar 10 '15 at 1:18
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Cookies vs. sessions
...not suitable in this case. In reality many famous and popular websites and services use cookie and you can stay logged-in for a long time. But how can you use their method to create a safer log-in process?
here's the idea: you can help the way you use cookies: If you use random keys instead of IDs ...
Where are my postgres *.conf files?
...dora installations, you can't set the port number here;
# adjust it in the service file instead.
max_connections = 100 # (change requires restart)
# Note: Increasing max_connections costs ~400 bytes of shared memory per
# connection slot, plus lock space (see max_locks_per_transaction).
#...
Difference between timestamps with/without time zone in PostgreSQL
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How to implement the activity stream in a social network
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Instead of rolling your own, you could look to a third party service used via an API. I started one called Collabinate (http://www.collabinate.com) that has a graph database backend and some fairly sophisticated algorithms for handling large amounts of data in a highly concurrent, hig...
How to export revision history from mercurial or git to cvs?
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