george
Thu Jul 02 2020
Postgres will look up an index only if it is worthwhile to look up an index. It will simply use regular row fetching otherwise. https://thoughtbot.com/blog/why-postgres-wont-always-use-an-index
george
Thu Jul 02 2020
Postgres will look up an index only if it is worthwhile to look up an index. It will simply use regular row fetching otherwise. https://thoughtbot.com/blog/why-postgres-wont-always-use-an-index
goromlagche
Wed Jun 03 2020
to debug statsd servers, this is a helpful command,
echo "your.statsd.counter:1|c" | nc -u -w 1 your.statsd.host.com 8125
revath
Wed Apr 15 2020
port forward via ssh.
ssh -L8200:127.0.0.1:8200 192.168.1.2. https://www.ssh.com/ssh/tunneling/example#local-forwarding
akshay
Mon Apr 13 2020
+----------+---------+---------------------+------------------------+-------------+
| | context | matched docs scored | matched docs in result | exact match |
+----------+---------+---------------------+------------------------+-------------+
| must | query | yes | yes | yes |
| filter | filter | no | yes | yes |
| should | query | yes | yes | no |
| must_not | filter | no | no | yes |
+----------+---------+---------------------+------------------------+-------------+revath
Wed Apr 01 2020
mac set custom default folder for screenshots
defaults write com.apple.screencapture location /path/to/Screenshotsrevath
Wed Mar 18 2020
incase
pod install throws error xcrun:_ error: SDK "iphoneos" cannot be located run sudo xcode-select --switch /Applications/Xcode.app. souce: https://github.com/facebook/react-native/issues/18408#issuecomment-386696744
iffyuva
Tue Mar 17 2020
This site https://imageonline.co/ is very handy to manipulate images online without searching for imagemagick commands
goromlagche
Thu Feb 27 2020
a little about pseudo terminal and ruby pty and expect. and then came across this https://stackoverflow.com/a/10645406/2365673. Nice way to to have full control terminal session.
goromlagche
Wed Feb 12 2020
$stdout.sync = true
this helps if you are trying to write a tool which pipes to another command. the other command will be able to process the output immediately, as no buffer and periodic flush is involved.
eg. cat rules > ruby rule_engine.rb | python calculate_tax.py
Also ARGF, sort of like a streaming STDIN. pretty cool, cause of the streaming.
this helps if you are trying to write a tool which pipes to another command. the other command will be able to process the output immediately, as no buffer and periodic flush is involved.
eg. cat rules > ruby rule_engine.rb | python calculate_tax.py
Also ARGF, sort of like a streaming STDIN. pretty cool, cause of the streaming.
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