pg | Golang ORM with focus on PostgreSQL features and performance | SQL Database library

 by   go-pg Go Version: v10.11.0 License: BSD-2-Clause

kandi X-RAY | pg Summary

kandi X-RAY | pg Summary

pg is a Go library typically used in Database, SQL Database applications. pg has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Golang ORM with focus on PostgreSQL features and performance

            kandi-support Support

              pg has a medium active ecosystem.
              It has 5406 star(s) with 394 fork(s). There are 90 watchers for this library.
              There were 1 major release(s) in the last 12 months.
              There are 111 open issues and 968 have been closed. On average issues are closed in 61 days. There are 4 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of pg is v10.11.0

            kandi-Quality Quality

              pg has 0 bugs and 0 code smells.

            kandi-Security Security

              pg has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              pg code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              pg is licensed under the BSD-2-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              pg releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 22925 lines of code, 1311 functions and 146 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            pg Key Features

            No Key Features are available at this moment for pg.

            pg Examples and Code Snippets

            No Code Snippets are available at this moment for pg.

            Community Discussions


            Is there a way to run an action on a grammar that's already been parsed?
            Asked 2022-Apr-04 at 08:40

            If I do:



            Answered 2022-Apr-04 at 08:40


            Your grammar is basically a program.

            Contrary to other (regex) implementations, Raku grammars are basically just another way to write a class and methods. It's all code underneath. Code that can have callbacks for each method run. That's what your action class is: a way to specify the callbacks.

            So, the parsing of your grammar happens at compile time. That creates code that gets run when you call .parse with the given string as the input.

            Your misconception seems to be that running .parse on a grammar parses the grammar. It doesn't. It runs the grammar, it parses your input string.



            Usage of decltype in return type of function template removes error due to exception specification
            Asked 2022-Mar-17 at 13:35

            I saw an answer to a question here. There the author of the answer made use of the fact that

            exception specifications do not participate1 in template argument deduction.

            In the answer linked above it is explained why the following doesn't compile:



            Answered 2022-Mar-17 at 13:25

            Here since there is no func, so during the substitution of the template argument(s) in the return type of the function template, we get substitution failure and due to SFINAE this function template is not added to the set. In other words, it is ignored.

            Thus the call timer(5); uses the ordinary function timer since it is the only viable option now that the function template has been ignored. Hence the program compiles and gives the output:



            TypeError: load() missing 1 required positional argument: 'Loader' in Google Colab
            Asked 2022-Mar-04 at 11:01

            I am trying to do a regular import in Google Colab.
            This import worked up until now.
            If I try:



            Answered 2021-Oct-15 at 21:11

            Found the problem.
            I was installing pandas_profiling, and this package updated pyyaml to version 6.0 which is not compatible with the current way Google Colab imports packages.
            So just reverting back to pyyaml version 5.4.1 solved the problem.

            For more information check versions of pyyaml here.
            See this issue and formal answers in GitHub

            For reverting back to pyyaml version 5.4.1 in your code, add the next line at the end of your packages installations:



            Postgres choosing a query plan that is more expensive by its own estimates
            Asked 2022-Feb-17 at 17:25

            I have the following 2 query plans for a particular query (second one was obtained by turning seqscan off):

            The cost estimate for the second plan is lower than that for the first, however, pg only chooses the second plan if forced to do so (by turning seqscan off).

            What could be causing this behaviour?

            EDIT: Updating the question with information requested in a comment:

            Output for EXPLAIN (ANALYZE, BUFFERS, VERBOSE) for query 1 (seqscan on; does not use index). Also viewable at



            Answered 2022-Feb-17 at 11:43

            You should have those two indexes to speed up your query :



            PG::UndefinedFunction: ERROR: function array_append(anyarray, anyelement) does not exist
            Asked 2022-Feb-03 at 10:35

            In my application we have few test cases which are configured with GitHub workflow,Even I do have only space related changes on file but still getting below error. Not sure why my specs are still failing it was working fine before.



            Answered 2022-Jan-17 at 07:25

            You are using PostGreSQL 14, aren't you ?

            Because with postgres 13 and before, this should work, see the test result in dbfiddle.

            And I confirm that this doesn't work with postgres 14, see the test result in dbfiddle.

            The reason is explained in the PostGres 14 manual :

            User-defined objects that reference certain built-in array functions along with their argument types must be recreated (Tom Lane)

            Specifically, array_append(), array_prepend(), array_cat(), array_position(), array_positions(), array_remove(), array_replace(), and width_bucket() used to take anyarray arguments but now take anycompatiblearray. Therefore, user-defined objects like aggregates and operators that reference those array function signatures must be dropped before upgrading, and recreated once the upgrade completes.

            To make it working, you can do instead :



            RAILS Calling `DidYouMean::SPELL_CHECKERS.merge!(error_name => spell_checker)' has been deprecated
            Asked 2022-Jan-21 at 13:34

            Good morning people.

            I'm trying to understand the error below but as I'm new to rails, I didn't quite understand. Does anyone have a light on what it could be?

            I searched the internet but didn't find anything specific.

            I searched on the internet but didn't identify anything, if anyone has seen it or has the link, you can send me and I'll see.

            If you need any more information to help, let me know and I'll edit the post and add it, I don't know if there's anything else I could have already posted.

            thank you for your help !!



            Answered 2022-Jan-21 at 13:34

            First of all, the message about DidYouMean is a deprecation warning not an error, it doesn't break your app. It means that usage of DidYouMean::SPELL_CHECKERS is deprecated and will be removed in a future version of ruby. In this case in Ruby 3.3. You shouldn't worry about it until you use versions that are lower than 3.3. It's not your code that triggers the warning. It comes from a gem named Thor. The issue was solved in thor version 1.2.0. You can update the gem by calling bundle update thor.

            The actual error comes from the bootsnap gem:



            java.lang.RuntimeException: android.database.sqlite.SQLiteException: no such table: media_store_extension (code 1): ,
            Asked 2022-Jan-18 at 08:15

            i'm having a problem to publish my app on the play store after october 2021, the error says that the table media_store_extension doesn't exist. The thing is: i don't use SQLITE on the project, so i have no idea what may be causing this exception.

            The target sdk is 30, and de minimun is 26

            The full error:



            Answered 2021-Nov-18 at 11:41

            This error is reported not only from Flutter developers, but also from Unity ( and and in my case - for a native android app.

            We first got this error 6 months ago and applied the fix that was suggested by the unity guys:



            TypeScript project failing to deploy to App Engine targeting Node 12 or 14, but works with Node 10
            Asked 2022-Jan-16 at 14:32

            I have a TypeScript project that has been deployed several times without any problems to Google App Engine, Standard environment, running Node 10. However, when I try to update the App Engine project to either Node 12 or 14 (by editing the engines.node value in package.json and the runtime value in app.yaml), the deploy fails, printing the following to the console:



            Answered 2022-Jan-16 at 14:32

            I encountered the exact same problem and just put typescript in dependencies, not devDependencies.

            It worked after that, but cannot assure that it is due to this change (since I have no proof of that).



            It is correct to cast to int after dereferencing a void pointer?
            Asked 2022-Jan-15 at 08:46
            void* aPtr = NULL;  // we don't yet know what it points to.
            aPtr = &height;     // it has the address of height, but no type yet.
            int h = (int)*aPtr; // with casting, we can now go to that address
                                // and fetch an integer value.


            Answered 2022-Jan-15 at 08:41

            Dereferencing and Casting Void Ptr (Learn C Programming, Jeff Szuhay)

            'with casting, we can now go [...]'

            The question is - can we really?

            Yes, but the shown code doesn't do any dereferencing. Well, it tries to dereference a void* and cast the result to int. That's not how it should be done. You must first cast to int* and then dereference that int*.



            Error trying to run seeds: Knex: Timeout acquiring a connection. The pool is probably full
            Asked 2022-Jan-12 at 20:42

            I'm getting this error everytime i run yarn knex seed:run:

            Error while executing "/home/user/path-to-the-file/my-seed.js" seed: Knex: Timeout acquiring a connection. The pool is probably full. Are you missing a .transacting(trx) call?

            The problem is that i send the project for other people and they can run it normally, i already tried all answers about it of the internet, i don't know what to do anymore.

            My database config:



            Answered 2021-Aug-12 at 14:09

            One easy way to create this error is doing this:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install pg

            go-pg supports 2 last Go versions and requires a Go version with modules support. So make sure to initialize a Go module:.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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