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How do I force Postgres to use a particular index?
...om_page_cost = 1;
EXPLAIN <query>; # May use index scan now
You can restore the default value with SET random_page_cost = DEFAULT; again.
Background
Index scans require non-sequential disk page fetches. Postgres uses random_page_cost to estimate the cost of such non-sequential...
What is “android.R.layout.simple_list_item_1”?
...ses a, b, and c. It can be seen in action in app Y.") Yes, it is great to know I can plunder the vaults and hack this all out on my own, but a scannable list of illustrations (vs XML) would be such a big help!
– Joe D'Andrea
Sep 25 '10 at 18:37
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Pull all commits from a branch, push specified commits to another
...l dependencies - if C actually used a function defined in B, you'll never know.
Perhaps a better way to handle this would be to have more fine grained branches. That is, instead of just having a 'master', have 'featureA', 'bugfixB', etc. Perform code review on an entire branch at a time - where eac...
Is Java RegEx case-insensitive?
... .replaceAll("(?i)\\b([A-Z])\\1+\\b", "$1")
); // A e I O u
Now suppose that we specify that the run should only be collapsed only if it starts with an uppercase letter. Then we must put the (?i) in the appropriate place:
System.out.println(
"AaAaaA eeEeeE IiiIi OoooOo uu...
how does array[100] = {0} set the entire array to 0?
...ur comment about the implementation. Unfortunately, I can't change my vote now.
– Natan Yellin
Apr 2 '12 at 9:06
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git: switch branch without detaching head
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git clone git@github.com:abc/def.git
cd def
Now create a tracking branch:
git branch --track experimental origin/experimental
git checkout experimental
Then, after working there, simply push to github by
git push
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What's the equivalent for eclipse's ALT+UP/DOWN (move line) in Visual Studio?
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This is now working out of the box with Visual Studio 2013, same way as in Eclipse.
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Entity Framework is Too Slow. What are my options? [closed]
...ut EF actually does some nice optimizations if you tell it everything you know about the query (in this case, that we will need the category-names). But this isn't like eager-loading (db.Products.Include("Categories")) because projections can further reduce the amount of data to load.
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is not JSON serializable
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Now getting error --> 'NoneType' object has no attribute 'concrete_model' ... And using Django 1.4+
– tuna
May 28 '13 at 11:42
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What is the result of % in Python?
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@P.MyerNore I know this is almost 3 years later, but may help others. Read the first highlighted para in sec. 5.6.2 linked above by KurzedMetal. The "x %= {}" is simply a short-form for "x = x % {...}"
– Sujay Phadke
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