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How to speed up insertion performance in PostgreSQL
... no practical limit AFAIK, but batching will let you recover from an error by marking the start of each batch in your input data. Again, you seem to be doing this already.
Use synchronous_commit=off and a huge commit_delay to reduce fsync() costs. This won't help much if you've batched your work int...
Python vs Cpython
...t an implementation detail, really. CPython compiles your Python code into bytecode (transparently) and interprets that bytecode in a evaluation loop.
CPython is also the first to implement new features; Python-the-language development uses CPython as the base; other implementations follow.
What abo...
How does OpenID authentication work?
...bsites.
How it works?
You can see the Flow of operation here (image)
Step-by-step activities here
Step-by-step activities here (other blog)
Steps
User connects to OpenID enabled website.
User enters credential information.
A POST is made with a BASE64 (website to provider)
An answer is built (tha...
How can I drop all the tables in a PostgreSQL database?
...ated in the comments, you might want to filter the tables you want to drop by schema name:
select 'drop table if exists "' || tablename || '" cascade;'
from pg_tables
where schemaname = 'public'; -- or any other schema
And then run it.
Glorious COPY+PASTE will also work.
...
Is module __file__ attribute absolute or relative?
...pathname of the shared library file.
From the mailing list thread linked by @kindall in a comment to the question:
I haven't tried to repro this particular example, but the reason is
that we don't want to have to call getpwd() on every import nor do we
want to have some kind of in-process ...
Ignoring directories in Git repositories on Windows
...te a file named .gitignore in your project's directory. Ignore directories by entering the directory name into the file (with a slash appended):
dir_to_ignore/
More information is here.
share
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i...
Purpose of Python's __repr__
...ng a printable representation of an object. This is the same value yielded by conversions (reverse quotes). It is sometimes useful to be able to access this operation as an ordinary function. For many types, this function makes an attempt to return a string that would yield an object with the same v...
Where are ${EXECUTABLE_NAME} and ${PRODUCT_NAME} defined
...the target's Build Settings in the Packaging section. It has the same name by default as your project.
Edit:
While PRODUCT_NAME is by default the name of the Target (MyDemoApp in this case). The EXECUTABLE_NAME is a concatenation of:
$EXECUTABLE_PREFIX, $PRODUCT_NAME and $EXECUTABLE_SUFFIX.
Se...
What is the explicit promise construction antipattern and how do I avoid it?
...
The deferred antipattern (now explicit-construction anti-pattern) coined by Esailija is a common anti-pattern people who are new to promises make, I've made it myself when I first used promises. The problem with the above code is that is fails to utilize the fact that promises chain.
Promises can...
CMake unable to determine linker language with C++
...project supports.
Example languages are CXX (i.e. C++), C, Fortran, etc. By default C
and CXX are enabled. E.g. if you do not have a C++ compiler, you can
disable the check for it by explicitly listing the languages you want
to support, e.g. C. By using the special language "NONE" all checks...