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Elasticsearch 2.1: Result window is too large (index.max_result_window)

We retrieve information from Elasticsearch 2.1 and allow the user to page thru the results. When the user ... options to solve my problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to handle request.GET with multiple variables for the same parameter in Django

In a Django view you can access the request.GET['variablename'], so in your view you can do something like ... like one. Not very pythonic! See Question&Answers more detail:os...

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visual studio code - Define multiple tasks in VSCode

I have seen that it is possible to define a task in the VSCode. But I am not sure how to define multiple tasks in the tasks.json file. See Question&Answers more detail:os...

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Is there functionality to generate a random character in Java?

Does Java have any functionality to generate random characters or strings? Or must one simply pick a random integer ... code to a character? See Question&Answers more detail:os...

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python - Compute row average in pandas

Y1961 Y1962 Y1963 Y1964 Y1965 Region 0 82.567307 83.104757 83.183700 83.030338 82.831958 US 1 2.699372 2 ... mean and also retain Region column See Question&Answers more detail:os...

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Why the "none" image appears in Docker and how can we avoid it

When I run the docker-compose build command to rebuild an image in Docker because I had changed something in ... 079344ce5ebd 7 months ago 256MB See Question&Answers more detail:os...

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A unicode newline character(u000d) in Java

Let's see the following code snippet in Java. public class Main { public static void main(String[] args) { // ... does it output "Hello" here? See Question&Answers more detail:os...

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CSS Selector for nth range?

How can I adapt the CSS selector below: .myTableRow td:nth-child(?){ background-color: #FFFFCC; } so it applies to td ... 5</td> </tr> </table> See Question&Answers more detail:os...

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iphone - UITextField with secure entry, always getting cleared before editing

I am having a weird issue in which my UITextField which holds a secure entry is always getting cleared when I ... way to prevent this behaviour? See Question&Answers more detail:os...

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Python Pandas Group by date using datetime data

I have a column Date_Time that I wish to groupby date time without creating a new column. Is this possible the ... df['Date_Time'].date()]) See Question&Answers more detail:os...

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time - Get a timestamp in C in microseconds?

How do I get a microseconds timestamp in C? I'm trying to do: struct timeval tv; gettimeofday(&tv,NULL); ... which can actually be worked with? See Question&Answers more detail:os...

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What factors make PHP Unicode-incompatible?

I am able use UTF-8 characters just fine in my scripts. As a matter of fact it is possible to have names ... PHP said to not support Unicode? See Question&Answers more detail:os...

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python - How can I subclass a Pandas DataFrame?

Subclassing Pandas classes seems a common need, but I could not find references on the subject. (It seems ... for subclassing pandas.Series? See Question&Answers more detail:os...

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php - How to prevent the cron job execution, if it is already running

I have one php script, and I am executing this script via cron every 10 minutes on CentOS. The problem is ... Linux commands or similar to this? See Question&Answers more detail:os...

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Any way to turn the "internet off" in windows using c#?

I am looking for pointers towards APIs in c# that will allow me to control my Internet connection by turning the ... in the process) Thanks !! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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google maps - Haversine formula with php

I want to use this formula with php. I have a database with some values of latitute and longitude saved. ... of distance="4826.9341106926" See Question&Answers more detail:os...

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eclipse - Attach the Java Source Code

I cannot for the life of me attach the java source code to eclipse so I can see the inner workings of the ... attachment. What am I doing wrong? See Question&Answers more detail:os...

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c# - A list of multiple data types?

I have two classes as such: public class MachineLine { public double X1; public double Y1; public double X2; public ... . How can this be done? See Question&Answers more detail:os...

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reactjs - React Native / Xcode Upgrade and now RCTConvert.h not found

App ran fine on React Native 0.35.0. After updating to 0.40.0 via react-native-git-upgrade I get a number ... , but that hasn't fixed anything. See Question&Answers more detail:os...

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swift - How to unwrap double optionals?

How do you unwrap a string that is returned as: (Optional(Optional "blue")) var cityName = String() if let ... out as (Optional "New York") See Question&Answers more detail:os...

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Execute jQuery function after another function completes

I want to execute a custom jQuery function after another custom function completes The first function is used for creating ... can I fix this? See Question&Answers more detail:os...

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hdfs - Hadoop java.io.IOException: Mkdirs failed to create /some/path

When I try to run my Job I am getting the following exception: Exception in thread "main" java.io.IOException: ... I am using hadoop 0.21. See Question&Answers more detail:os...

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Using Android Intent.ACTION_SEND for sending email

I'm using Intent.ACTION_SEND to send an email. However, when I call the intent it is showing choices to send a ... email. How can I do this? See Question&Answers more detail:os...

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Android Studio create project template for new projects

First of all, I'm aware of this question; however I cannot follow the answer because there are no ... Studio template for these tasks? See Question&Answers more detail:os...

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How to parse command line output from c#?

I want to execute an application(command line application) from the C#... and I want after executing this ... STD OUT results Thanks alot See Question&Answers more detail:os...

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kotlin - Error : Program type already present: android.support.design.widget.CoordinatorLayout$Behavior

I am getting the following error while building the project. haven't used CoordinatorLayout in this project. just added ... processor:3.1.0" } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to check if a file exists in a folder?

I need to check if an xml file exists in the folder. DirectoryInfo di = new DirectoryInfo(ProcessingDirectory); ... an xml file is present See Question&Answers more detail:os...

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Is it possible to create a "weak reference" in JavaScript?

Is there any way in JavaScript to create a "weak reference" to another object? Here is the wiki page ... implement this behavior in JavaScript? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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