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Can PostgreSQL index array columns?

...IN ANALYZE SELECT * FROM "Test" WHERE "Column1" @> ARRAY[20]; Result: Bitmap Heap Scan on "Test" (cost=4.26..8.27 rows=1 width=32) (actual time=0.014..0.015 rows=2 loops=1) Recheck Cond: ("Column1" @> '{20}'::integer[]) -> Bitmap Index Scan on idx_test (cost=0.00..4.26 rows=1 ...
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PHP - Check if two arrays are equal

... A side note: This approach works for multidimensional arrays as well (it wasn't that obvious for me before). – trejder Sep 23 '13 at 8:41 5 ...
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How do I rename all files to lowercase?

...n Mac OS X, but read on): for i in * ; do j=$(tr '[:upper:]' '[:lower:]' <<< "$i") ; mv "$i" "$j" ; done You need to also handle spaces in filenames (any OS): IFS=$'\n' ; for i in * ; do j=$(tr '[:upper:]' '[:lower:]' <<< "$i") ; mv "$i" "$j" ; done You need to safely handle ...
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ORA-12514 TNS:listener does not currently know of service requested in connect descriptor

...SCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = *<validhost>*)(PORT = *<validport>*)) ) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = *<servicenamefromDB>*) ) ) then I ran: sqlplus user@TEST Success! The listener is basi...
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Date query with ISODate in mongodb doesn't seem to work

... Although $date is a part of MongoDB Extended JSON and that's what you get as default with mongoexport I don't think you can really use it as a part of the query. If try exact search with $date like below: db.foo.find({dt: {...
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Python: reload component Y imported with 'from X import Y'?

... note that in Python 3, reload is no longer in the default namespace but has been moved to the importlib package. importlib.reload(Y) docs.python.org/3.4/library/… see also stackoverflow.com/questions/961162/… – flies Dec 13 '14 at 21:58...
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Multiple Inheritance in C#

Since multiple inheritance is bad (it makes the source more complicated) C# does not provide such a pattern directly. But sometimes it would be helpful to have this ability. ...
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CSS transition effect makes image blurry / moves image 1px, in Chrome?

...accessibility and SEO wise you could replace the background image with an <img> tag using object-fit CSS property. Original answer Try this in your CSS: .your-class-name { /* ... */ -webkit-backface-visibility: hidden; -webkit-transform: translateZ(0) scale(1.0, 1.0); } Wha...
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Convert a Unicode string to a string in Python (containing extra symbols)

...CII characters: >>> a=u"aaaàçççñññ" >>> type(a) <type 'unicode'> >>> a.encode('ascii','ignore') 'aaa' >>> a.encode('ascii','replace') 'aaa???????' >>> share ...
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Copy object values in Visual Studio debug mode

...get this after the first 100 have been displayed in the Immediate window: < More... (The first 100 of 335 items were displayed.) > – lachs Jan 19 '16 at 5:50 6 ...