scan | Tiny lib to scan SQL rows directly to structs, slices, and primitive types | SQL Database library
kandi X-RAY | scan Summary
kandi X-RAY | scan Summary
Scan standard lib database rows directly to structs or slices. For the most comprehensive and up-to-date docs see the godoc.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of scan
scan Key Features
scan Examples and Code Snippets
Lines of Code : 64
License : No License
Copyfor await (const key of client.scanIterator()) {
// use the key!
await client.get(key);
}
for await (const { field, value } of client.hScanIterator('hash')) {}
for await (const member of client.sScanIterator('set')) {}
for await (const { score, def _scan(fn, elems, initial, reverse=False, inclusive=False, final_only=False):
"""Repeatedly applies callable `fn` to a sequence of elements.
Implemented by functional_ops.While, tpu friendly, no gradient.
This is similar to functional_ops. def scan_v2(fn,
elems,
initializer=None,
parallel_iterations=10,
back_prop=True,
swap_memory=False,
infer_shape=True,
reverse=False,
name=None):
"""scan def scan(initial_state, scan_func):
"""A transformation that scans a function across an input dataset.
This transformation is a stateful relative of `tf.data.Dataset.map`.
In addition to mapping `scan_func` across the elements of the input dat Community Discussions
Trending Discussions on scan
QUESTION
In my flutter project, I have made some updates of plugins and then used flutter upgrade. After that, whenever I am running my flutter project it is showing following error-
...ANSWER
Answered 2021-Dec-16 at 11:49For me, cleaning and getting the packages didn't work. This error started after I upgraded flutter. I was on the master channel, a quick fix for me was to switch to stable.
QUESTION
I'm trying to initiate a Springboot project using Open Jdk 15, Springboot 2.6.0, Springfox 3. We are working on a project that replaced Netty as the webserver and used Jetty instead because we do not need a non-blocking environment.
In the code we depend primarily on Reactor API (Flux, Mono), so we can not remove org.springframework.boot:spring-boot-starter-webflux dependencies.
I replicated the problem that we have in a new project.: https://github.com/jvacaq/spring-fox.
I figured out that these lines in our build.gradle file are the origin of the problem.
...ANSWER
Answered 2022-Feb-08 at 12:36This problem's caused by a bug in Springfox. It's making an assumption about how Spring MVC is set up that doesn't always hold true. Specifically, it's assuming that MVC's path matching will use the Ant-based path matcher and not the PathPattern-based matcher. PathPattern-based matching has been an option for some time now and is the default as of Spring Boot 2.6.
As described in Spring Boot 2.6's release notes, you can restore the configuration that Springfox assumes will be used by setting spring.mvc.pathmatch.matching-strategy to ant-path-matcher in your application.properties file. Note that this will only work if you are not using Spring Boot's Actuator. The Actuator always uses PathPattern-based parsing, irrespective of the configured matching-strategy. A change to Springfox will be required if you want to use it with the Actuator in Spring Boot 2.6 and later.
QUESTION
A Flutter Android app I developed suddenly compiled wrong today.
Error:
What went wrong:Execution failed for task ':app:processDebugResources'.
Android resource linking failed /Users/xxx/.gradle/caches/transforms-2/files-2.1/5d04bb4852dc27334fe36f129faf6500/res/values/values.xml:115:5-162:25: AAPT: error: resource android:attr/lStar not found.
error: failed linking references.
I triedRun with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.orgThe build failed in 16 seconds.
...ANSWER
Answered 2021-Sep-02 at 19:05Are you using the @react-native-community/netinfo library? You need to refresh this library if you are using it.
After updating or uninstalling and reinstalling the netinfo library it will work.
QUESTION
Update: the root issue was a bug which was fixed in Spark 3.2.0.
Input df structures are identic in both runs, but outputs are different. Only the second run returns desired result (df6). I know I can use aliases for dataframes which would return desired result.
The question. What is the underlying Spark mechanics in creating df3? Spark reads df1.c1 == df2.c2 in the join's on clause, but it's evident that it does not pay attention to the dfs provided. What's under the hood there? How to anticipate such behaviour?
First run (incorrect df3 result):
ANSWER
Answered 2021-Sep-24 at 16:19Spark for some reason doesn't distinguish your c1 and c2 columns correctly. This is the fix for df3 to have your expected result:
QUESTION
I'm trying to study the neural-network-and-deep-learning (http://neuralnetworksanddeeplearning.com/chap1.html). Using the updated version for Python 3 by MichalDanielDobrzanski (https://github.com/MichalDanielDobrzanski/DeepLearningPython). Tried to run it in my command console and it gives an error below. I've tried uninstalling and reinstalling setuptools, theano, and numpy but none have worked thus far. Any help is very appreciated!!
Here's the full error log:
...ANSWER
Answered 2022-Feb-17 at 14:12I had the same issue and solved it downgrading numpy to version 1.20.3 by:
QUESTION
I've built my React Native app and tested and troubleshooted with my iOS devices for months. Now I'm trying to built and test the app on Android for the first time. The thing is, that I keep getting errors trying to run the Android-version of my app. After hours of debugging and troubleshooting, I tried to create a new RN project and see if that could run on my emulator and device. I got that part working and then I wanted to copy/paste the files of my existing app project into the new project.
I pasted my existing assets, styles, the source JS-files and the package.json file into the new project, ran npm install and then I ended up with the exact same error message as I had in the original project when I run react-native run-android.
The full error message is here:
...ANSWER
Answered 2021-Aug-21 at 13:43I've hit this same issue and have temporarily resolved it by uninstalling react-native-video (npm uninstall --save react-native-video). That's not a great answer as I need that component, but I don't have a full solution yet. I think somehow com.yqritc:android-scalablevideoview:1.0.4. is required by react-native-video but has gotten lost or removed. Other thoughts are welcome.
UPDATE: Resolved! In your build.gradle in your Android folder you need to add the repository "jcenter()" in allprojects (not in build dependencies) like this...
QUESTION
I just updated flutter version from 2.5.3 to 2.8. I have the following error that i dont know how resolve it. There is no error on any plugin installed, It seems that the error comes from the inner classes themselves and I don't know in which part of my application the error is throwed:
...ANSWER
Answered 2021-Dec-13 at 13:09I have solved it by forcing update flutter_math_fork adding to pubspec:
QUESTION
I have created a new flutter project and added camera plugin. after adding that dependency I got many errors. I used futter version is 2.5.2 & minSdkVersion 21
In pubspec.yaml file,
ANSWER
Answered 2021-Nov-17 at 07:00How about this?
flutter pub cache repair
QUESTION
Because of Google Play, I had to update an old project of mine to the latest expo versions (version 43.0.0 to be exact). The idea is for the app to scan a QRCode and process the data, simply. However, expo-barcode-scanner only works once and after that I need to close and open the app again to work. Has anyone encountered this problem and (or) knows how to solve it? Below is my code:
...ANSWER
Answered 2021-Nov-12 at 21:14Welcome @Backup Gov18,
This is a documented issue.
Note: Only one active BarCodeScanner preview is supported currently. When using navigation, the best practice is to unmount any previously rendered BarCodeScanner component so the following screens can use without issues.
There is a workaround.
Instead of conditionally rendering the component, you could render it inside another dedicated screen component.
This way, after this new screen reads the barcode, you could navigate back to your first screen. Navigating back may unmount this new screen. You can force unmount if you need to.
As you are using react-navigation, you had better use .pop() instead of goBack().
You can also use expo-camera instead of expo-barcode-scanner. expo-camera does not have this issue. It also offers more options like flashlight/torch and switching cameras.
QUESTION
I am working with WSL a lot lately because I need some native UNIX tools (and emulators aren't good enough). I noticed that the speed difference when working with NPM/Yarn is incredible.
I conducted a simple test that confirmed my feelings. The test was running npx create-react-app my-test-app and the WSL result was Done in 287.56s. while GitBash finished with Done in 10.46s..
This is not the whole picture, because the perceived time was higher in both cases, but even based on that - there is a big issue somewhere. I just don't know where. The project I'm working on uses tens of libraries and changing even one of them takes minutes instead of seconds.
Is this something that I can fix? If so - where to look for clues?
Additional info:
my processor: Processor AMD Ryzen 7 5800H with Radeon Graphics, 3201 Mhz, 8 Core(s), 16 Logical Processors
I'm running Windows 11 with all the latest updates to both the system and the WSL. The chosen system is Ubuntu 20.04
I've seen some questions that are somewhat similar like 'npm install' extremely slow on Windows, but they don't touch WSL at all (and my pure Windows NPM works fast).
the issue is not limited to NPM, it's also for Yarn
another problem that I'm getting is that file watching is not happening (I need to restart the server with every change). In some applications I don't get any errors, sometimes I get the following:
...
ANSWER
Answered 2021-Aug-29 at 15:40Since you mention executing the same files (with proper performance) from within Git Bash, I'm going to make an assumption here. Correct me if I'm wrong on this, and I'll delete the answer and look for another possibility.
This would be explained (and expected) if your files are stored on /mnt/c (a.k.a. C:, or /C under Git Bash) or any other Windows drive, as they would likely need to be to be accessed by Git Bash.
WSL2 uses the 9P protocol to access Windows drives, and it is currently known to be very slow when compared to:
- Native NTFS (obviously)
- The ext4 filesystem on the virtual disk used by WSL2
- And even the performance of WSL1 with Windows drives
I've seen a git clone of a large repo (the WSL2 Linux kernel Github) take 8 minutes on WSL2 on a Windows drive, but only seconds on the root filesystem.
Two possibilities:
If possible (and it is for most Node projects), convert your WSL to version 1 with
wsl --set-version 1. I always recommend making a backup withwsl --exportfirst.And since you are making a backup anyway, you may as well just create a copy of the instance by
wsl --importing your backup as--version 1(as the last argument). WSL1 and WSL2 both have their uses, and you may find it helpful to keep both around.See this answer for more details on the exact syntax..
Or just move the project over to somewhere under the WSL root, such as
/home/username/src/.
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