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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
...Y;
Older Versions of PostgreSQL
In old versions of PostgreSQL (prior to 8.x?) you had to do all the dirty work. The following sequence of commands should do the trick:
ALTER TABLE test1 ADD COLUMN id INTEGER;
CREATE SEQUENCE test_id_seq OWNED BY test1.id;
ALTER TABLE test ALTER COLUMN id S...
What is the Scala annotation to ensure a tail recursive function is optimized?
...om the "Tail calls, @tailrec and trampolines" blog post:
In Scala 2.8, you will also be able to use the new @tailrec annotation to get information about which methods are optimised.
This annotation lets you mark specific methods that you hope the compiler will optimise.
You will then get ...
Regular expression for a string containing one word but not another
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8
FYI, check out regexr.com for a nice way to test these expressions out.
– Joshua Pinter
Apr 8 '14 at ...
Git interactive rebase no commits to pick
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86
Like a non-interactive rebase, you have to rebase onto a particular commit.
With a non-interac...
nServiceBus vs Mass Transit vs Rhino Service Bus vs other?
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edited Jan 13 '19 at 8:57
answered Oct 23 '09 at 19:17
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BigDecimal - to use new or valueOf
... scale of 1), but it is actually equal to 0.1000000000000000055511151231257827021181583404541015625. This is because 0.1 cannot be represented exactly as a double (or, for that matter, as a binary fraction of any finite length). Thus, the value that is being passed in to the constructor is not exact...
What is the effect of encoding an image in base64?
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BlenderBlender
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What is the “Temporary ASP.NET Files” folder for?
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John
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answered Jan 16 '09 at 16:05
KevKev
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How do I stop a Git commit when VI is on the screen waiting for a commit message?
...egardless if i use :q!
– Sirex
Dec 18 '12 at 22:27
2
git reset HEAD^ would discard local modifica...
Remove refs/original/heads/master from git repo after filter-branch --tree-filter?
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CascabelCascabel
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