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Optimise PostgreSQL for fast testing
... table, manipulating it however you need to, then doing an INSERT INTO ... SELECT ... to copy it to the final table. Note that temporary tables are per-session; if your session ends or you lose your connection then the temp table goes away, and no other connection can see the contents of a session's...
How to remove empty cells in UITableView? [duplicate]
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In the Storyboard, select the UITableView, and modify the property Style from Plain to Grouped.
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CSS: how do I create a gap between rows in a table?
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This solution does not allow you to selectively apply the spacing to certain rows.
– Flimm
Feb 21 '14 at 11:09
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How to check if a model has a certain column/attribute?
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For bonus points use Hash#select: number_hash.select { |key, value| Number.column_names.include? key }
– hgmnz
Nov 10 '09 at 18:31
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How to print a groupby object
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for key, values in gb.iteritems():
print(df.ix[values], "\n\n")
For selective key grouping: Insert the keys you want inside the key_list_from_gb, in following, using gb.keys(): For Example,
gb = grouped_df.groups
gb.keys()
key_list_from_gb = [key1, key2, key3]
for key, values in gb.items()...
Subclipse svn:ignore
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After doing what is mentioned in the solution, select the folder and use the shortcut (Ctrl + Alt + I) to add it to ignore. I don't know why this works and the menu doesn't, it might be a bug.
– Andrei B.
Mar 4 '13 at 10:22
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How to fix PCH error?
... Build Folder... (with Option key pressed) works for most people. See the selected answer by @gaige.
If you're unlike most people (myself included) and this still causes you trouble XCode has likely left your shared precompiled headers elsewhere. For me they were in a folder similar to this:
/va...
Properly removing an Integer from a List
... is equal to Integer(1) will be removed. In both cases, the Java compiler selects the closest matching overload.
Yes, there is potential for confusion (and bugs) here, but it is a fairly uncommon use-case.
When the two List.remove methods were defined in Java 1.2, the overloads were not ambiguous...
how to mix links ( tag ) and headings ( tag ) in web standard?
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a > h1 will cause difficulty in selecting text
Since both are completely valid in HTML5, it is better to use h1 > a
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How can I get a specific number child using CSS?
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Don't forget that this works only with CSS 3 selectors (in other words, not in versions of IE prior to 9).
– zneak
Apr 14 '11 at 14:31
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