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PostgreSQL LIKE query performance variations
...EATE INDEX tbl_col_gist_trgm_idx ON tbl USING gist (col gist_trgm_ops);
Difference between GiST and GIN index
Example query:
SELECT * FROM tbl WHERE col LIKE '%foo%'; -- leading wildcard
SELECT * FROM tbl WHERE col ILIKE '%foo%'; -- works case insensitively as well
Trigrams? What about shor...
Open existing file, append a single line
...async Task AppendLineToFileAsync([NotNull] string path, string line)
{
if (string.IsNullOrWhiteSpace(path))
throw new ArgumentOutOfRangeException(nameof(path), path, "Was null or whitepsace.");
if (!File.Exists(path))
throw new FileNotFoundException("File not found.", name...
Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
...lertDialog which requires a Context as a parameter. This works as expected if I use:
28 Answers
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How does git store files?
...Git Community Book , and in this book they say that SVN and CVS store the difference between files and that git stores a snapshot of all the files.
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How to disable all inside a form with jQuery?
...See :input:
Matches all input, textarea, select and button elements.
If you only want the <input> elements:
$("#target input").prop("disabled", true);
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Count number of objects in list [closed]
...n it - 3 components/indexes/tags (whatever you want to call it) each with differing amounts of elements:
> mylist <- list(record1=c(1:10),record2=c(1:5),record3=c(1:2))
If you are interested in just the number of components in a list use:
> length(mylist)
[1] 3
If you are interest...
What does git push origin HEAD mean?
...Also it prevents you from pushing to the wrong remote branch by accident.
If you want to push a different branch than the current one the command will not work.
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Get commit list between tags in git
If I've a git repository with tags representing the versions of the releases.
5 Answers
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PostgreSQL array_agg order
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If you are on a PostgreSQL version < 9.0 then:
From: http://www.postgresql.org/docs/8.4/static/functions-aggregate.html
In the current implementation, the order of the input is in principle unspecified. Supplying the ...
How to create a UIView bounce animation?
..., Teehanlax has a clear, concise tutorial with the full project in github. If you want a more detailed tutorial about the ins-and-outs of dynamics, the Ray Winderlich tutorial is great. As always, the Apple docs are a great first stop, so check out the UIDynamicAnimator Class reference in the docs.
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