Merge branch 'master' of git.ducamps.win:vincent/notebook
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@ -26,3 +26,20 @@ pg_upgrade -b /opt/pgsql-PG_VERSION/bin -B /usr/bin -d /var/lib/postgres/olddata
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```
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- check both pg_hba.conf in new and old cluster
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- restart server `sc-start postgresql`
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# sequece manipulation
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sequence are use to generate uniq identifier
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- get sequence value
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```SQL
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select * from name_seq;
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```
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- increment sequence value
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```SQL
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select nextval(name_seq);
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```
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- set sequence value:
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```SQL
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select setval(name_seq,newvalue);
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```
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@ -23,8 +23,22 @@ this will ask if you want to add each modification with this option:
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## delete a file from complete history
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be carefull can't push repo last time use
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need to be in a repo with no modification
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`git filter-branch --tree-filter 'rm -f passwords.txt' HEAD`
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```
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git filter-branch --index-filter "git rm -rf --cached --ignore-unmatch $file" HEAD
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rm -rf .git/refs/original/ && git reflog expire --all && git gc --aggressive --prune
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```
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## create a repo from other repo subfoler
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- clone the first repo
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- go in this directory
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- launch
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```
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git filter-branch --prune-empty --subdirectory-filter "subdirectory/path" master
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```
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- push in your new git repo
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## changing email adress
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