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In git, is there a way to show untracked stashed files without applying the stash?
...So the parents of the stash commit are (1. Commit stash is made against 2. Index 3. Untracked working copy), and the stash commit itself contains the tracked working copy? git stash show appears to show the diff between the working copy and #1 (relevant code from git-stash.sh: git diff ${FLAGS:---s...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...il='a@b.com', data='inserted data')
stmt = stmt.on_conflict_do_update(
index_elements=[my_table.c.user_email],
index_where=my_table.c.user_email.like('%@gmail.com'),
set_=dict(data=stmt.excluded.data)
)
conn.execute(stmt)
http://docs.sqlalchemy.org/en/latest/dialects/postgresql.htm...
Is GridFS fast and reliable enough for production?
...r.
Current data size : 11.23g
Current storage size : 12.5g
Indices : 5
Index size : 849.65m
About the reliability : This is very reliable. The server doesn't load, the index size is ok, queries are fast
About the speed : For sure, is it not fast as local file storage, maybe 10% slower, but fas...
Is it safe to remove selected keys from map within a range loop?
...n see from this playground play.golang.org/p/FwbsghzrsO . Note that if the index you delete is the first one in the range, it will still show that one since its already written to k,v but if you set the index to any besides the first one that range finds it will only display two key/value pairs inst...
Mongodb Explain for Aggregation framework
...}
)
An important consideration with the Aggregation Framework is that an index can only be used to fetch the initial data for a pipeline (e.g. usage of $match, $sort, $geonear at the beginning of a pipeline) as well as subsequent $lookup and $graphLookup stages. Once data has been fetched into t...
Easiest way to rename a model using Django/South?
...
Beware that this will not rename indexes on that table. If you create a new table in the future with the same name as the old table, you can get errors from index names colliding. We were using this technique, but from now on we are going to explicitly creat...
Where to put view-specific javascript files in an ASP.NET MVC application?
...view:
You can access it directly:
http://yourdomain.com/YourController/Index.js
Below is the source:
namespace JavaScriptViews {
public class JavaScriptActionDescriptor : ActionDescriptor
{
private string actionName;
private ControllerDescriptor controllerDescripto...
Most efficient way to store thousand telephone numbers
...very efficient version of trie, that only uses as little as needed for the indexing and only two levels. In practice it would be nice to see if this can beat a trie with more levels, but I think this depends a lot on the distribution of the numbers (In real live phone numbers are not fully random, b...
How to disable HTML links
....
Focus
In conjunction with above described CSS technique you may use tabindex in a non-standard way to prevent an element to be focused:
<a href="#" disabled tabindex="-1">...</a>
I never checked its compatibility with many browsers then you may want to test it by yourself before u...
How do I use arrays in C++?
...t of a function returning a pointer (or any other expression of type T*).
Indexing operator
Since the syntax *(x+i) is a bit clumsy, C++ provides the alternative syntax x[i]:
std::cout << x[3] << ", " << x[7] << std::endl;
Due to the fact that addition is commutative, th...