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PostgreSQL - max number of parameters in “IN” clause?
In Postgres, you can specify an IN clause, like this:
8 Answers
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How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
It's a sad fact of life on Scala that if you instantiate a List[Int], you can verify that your instance is a List, and you can verify that any individual element of it is an Int, but not that it is a List[Int], as can be easily verified:
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How are feature_importances in RandomForestClassifier determined?
I have a classification task with a time-series as the data input, where each attribute (n=23) represents a specific point in time. Besides the absolute classification result I would like to find out, which attributes/dates contribute to the result to what extent. Therefore I am just using the feat...
Maintain/Save/Restore scroll position when returning to a ListView
...isible list item. But this item may be partially scrolled out of view, and if you want to restore the exact scroll position of the list you need to get this offset. So ListView.getChildAt(0) returns the View for the top list item, and then View.getTop() - mList.getPaddingTop() returns its relative o...
How to assert two list contain the same elements in Python? [duplicate]
...simple example which compares two lists having the same elements but in a different order.
using assertCountEqual the test will succeed
using assertListEqual the test will fail due to the order difference of the two lists
Here a little example script.
import unittest
class TestListElements(un...
What's an appropriate HTTP status code to return by a REST API service for a validation failure?
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If "validation failure" means that there is some client error in the request, then use HTTP 400 (Bad Request). For instance if the URI is supposed to have an ISO-8601 date and you find that it's in the wrong format or refers...
Share application “link” in Android
... Android loves to make so many changes in their updates that who knows if this code will fail in a future update
– Ton
Feb 20 '18 at 13:32
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Rails migration for has_and_belongs_to_many join table
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@hoffmanc It will generate an empty migration file if you do not specify any fields. You must specify the fields if you want Rails to automatically add them to the migration file.
– Andrew
Jan 21 '15 at 19:44
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For files in directory, only echo filename (no path)
How do I go about echoing only the filename of a file if I iterate a directory with a for loop?
5 Answers
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Can I convert long to int?
...is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:
int myIntValue = unchecked((int)myLongValue);
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