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Can PostgreSQL index array columns?
... CREATE TABLE "Test"("Column1" int[]);
INSERT INTO "Test" VALUES ('{10, 15, 20}');
INSERT INTO "Test" VALUES ('{10, 20, 30}');
CREATE INDEX idx_test on "Test" USING GIN ("Column1");
-- To enforce index usage because we have only 2 records for this test...
SET enable_seqscan ...
How to check if smtp is working from commandline (Linux) [closed]
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edited Aug 15 '19 at 16:20
rogerdpack
46.2k3030 gold badges200200 silver badges315315 bronze badges
ans...
How do I interpret precision and scale of a number in a database?
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406
Numeric precision refers to the maximum number of digits that are present in the number.
ie 1...
What is more efficient? Using pow to square or just multiply it with itself?
... expression) \
double test##num(double b, long loops) \
{ \
double x = 0.0; \
\
boost::posix_time::ptime startTime = now(); \
for (long i=0; i<loops; ++i) \
{ \
x += expression; \
x += expression; \
x += expression; \
x += expression; \
x +=...
How do I select elements of an array given condition?
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answered Jun 13 '10 at 0:50
jfsjfs
326k132132 gold badges817817 silver badges14381438 bronze badges
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Operation on every pair of element in a list
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edited Jun 3 '09 at 18:12
answered Jun 3 '09 at 0:24
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How to print a string in fixed width?
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EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking at this should prefer the new format syntax.
You can use string formatting like this:
>>> print '%5s' % 'aa'
aa
>>>...
Static function variables in Swift
...unc foo() -> Int {
struct Holder {
static var timesCalled = 0
}
Holder.timesCalled += 1
return Holder.timesCalled
}
7> foo()
$R0: Int = 1
8> foo()
$R1: Int = 2
9> foo()
$R2: Int = 3
...
is it possible to select EXISTS directly as a bit?
...o, you'll have to use a workaround.
If you must return a conditional bit 0/1 another way is to:
SELECT CAST(
CASE WHEN EXISTS(SELECT * FROM theTable where theColumn like 'theValue%') THEN 1
ELSE 0
END
AS BIT)
Or without the cast:
SELECT
CASE
WHEN EXISTS( SELECT 1 FROM the...
How to find list of possible words from a letter matrix [Boggle Solver]
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+150
My answer works like the others here, but I'll post it because it looks a bit faster than the other Python solutions, from setting up ...