Hi. Running these new migrations against pre-10.0 PostgreSQL versions generate this error. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. PostgreSQL SELECT statement is used to fetch the data from a database table, which returns data in the form of result table. how much mountain biking experience is needed for Goat Canyon Trestle Bridge via Carrizo Gorge Road? But all environments are on Postgres. I understand that Squere brackets are not valid in Postgres but i think that driver was ignoring that part when executing migration in older version. Migrations are C# code which gets generated when you execute dotnet ef migrations add, and are typically tracked by source control. You signed in with another tab or window. 31.4.4. Why do I get this error? I have setup a new Moodle instance version 3.9.2 Build: 20200914 and Postgres 12.4. Remove your migration folder and create new migration and udpate database. This is crashing backwards compatibility. Stack Overflow for Teams is a private, secure spot for you and https://github.com/dotnet/core/blob/master/release-notes/download-archives/2.1.200-sdk-download.md. @vasicvuk, neither Npgsql (the driver) nor PostgreSQL magically ignore parts of your SQL. Solved my Problem. The basic syntax of SELECT statement is as follows − SELECT column1, column2, columnN FROM table_name; In this technical presentation, Bill Kendall will cover the usage of Raft for consensus, the challenges of data distribution, distributed SQL execution, and how CockroachDB has solved some of the thornier challenges of distributed ACID transactions and SQL optimization. Filtered indices are a feature which require the user to specify the filter in raw SQL, which is why it's necessarily database-specific. @roji , I met the same problem and try with solution that you suggested and it working fine. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. filter: "[NormalizedUserName] IS NOT NULL". Today i have updated to Entity Framework Core 2.1.3 and .Net Core 2.1 and also to latest version of Npgsql.EntityFrameworkCore.PostgreSQL and since today migrations are not working. May be there should be a common understanding among entity framework providers to generate clean migration scripts as Npgsql.EntityFrameworkCore.PostgreSQL. Hey brianc, thanks a lot for your great work. You can open NPGAdmin and try to execute any statement with the square brackets. I'm new to the Postgre but I guess that constraint will be fired on the NPG during the second NULL insert. OWNER TO postgres; On Wed, Jan 20, 2016 at 6:05 PM, Thom Brown wrote: > On 20 January 2016 at 12:15, Sachin Srivastava But this isn't the case right now. PostgreSQL error: Fatal: role “username” does not exist 799 Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with rails This problem still seems to be an issue. Delete elements of a list with the same x value, Which sub operation is more expensive in AES encryption process, Tcolorbox : create a proof environnement with a QED symbol at the very end. SQL Functions Returning Sets. My quick guess is that I am extending my DbContext from IdentityDbContext which wants to create all of the tables for roles, users, claims, etc. Actually I have decided to use the same approach as @SperoSophia has suggested. I'll be happy to explore further if you provide some sort of repro instructions - a sample project with migrations which, when applied to PostgreSQL, somehow works even though it contains square brackets. @roji Thanks for explanation. Once I changed all occurrences of NpgsqlValueGenerationStrategy.IdentityByDefaultColumn in the migrations back to NpgsqlValueGenerationStrategy.SerialColumn the error vanished! CVS tip gives a slightly more complete error message: regression=# select list_devices ('123456789012'); ERROR: syntax error at or near "$1" at character 30. Have a question about this project? You can get this f.e. privacy statement. If you try to apply a migration that contains custom SQL with brackets, it will error. CONTEXT: PL/pgSQL function "list_devices" line 7 at for over select rows. My transcript has the wrong course names. You can see there are two specific calls that are being made where [NormalizedName] and [NormalizedUserName] are being used. I'll try to see about PostgreSQL-specific templates getting integrated there so this can all be avoided. the EF Core docs on migrations and multiple providers, thoroughly read the docs I pointed earlier, Error using ASP.NET Core Identity with PostgreSQL. Thanks for the guidance, the clean migration on PostgreSQL works for me. I really enjoy using node-postgres, usually without any problems. Find the place in the application's context where the raw SQL is specified, and convert it to PostgreSQL (i.e. @YohDeadfall - I understand that part about it, but this is not script that I am creating or even code that I am creating. As you see - there is no FILTER call generated for the NPG. But I have compared the snapshots (same model but two diff providers) and here is what my concern about: @roji 100% right. Why use "the" in "a real need to understand something about **the seasons** "? @jomeno this is expected and documented in the release notes. Maybe in the future they EF Core will allow you to specify the index's filter clause via an expression, and translate that to raw SQL only when actually applying the migration to the database (and the SQL will thus be generated specifically for the database type being migrated). Find the place in the application's context where the raw SQL is specified, and convert it to PostgreSQL (i.e. If I change this to just extend from DbContext, then everything works as advertised. If you just want to run this on Npgsql/PostgreSQL, you can simply manually change the SQL in the migrations. It's a keyword to state that you want only distinct tuples on your result set. This is bit of strange that SqlServer-specific raw SQL are generated when targeting SQLServer. Instead, double quotation marks must be used with PostgreSQL. SELECT DISTINCT column_name,column_name In this issue, you guys are taking migrations which were generated on SqlServer, and which contain SqlServer-specific raw SQL (square brackets), and trying to run them on PostgreSQL. These result tables are called result-sets. Change the brackets to be escaped double quotes (backslash + doublequote for each bracket). "filter: "[NormalizedName] IS NOT NULL" is present in migration in Initial commit that was a year ago. On Fri, 2 Sep 2005, [ISO-8859-2] Graf Lszl wrote: > > CREATE FUNCTION test_verif() RETURNS trigger AS $test_verif$ > BEGIN > NEW.id := select nextval('test_azon_seq'); From the documentation: In general, a unique constraint is violated if there is more than one row in the table where the values of all of the columns included in the constraint are equal. @roji Noted. What's an uncumbersome way to translate "[he was not] that much of a cartoon supervillain" into Spanish? IdentityServer4 => 2.1.3 I ran into this exception and here's something to consider as well. Everything seemed to work well with no issues, till today one of the Moodle Admins created a new user with a customized role, when attempting to log in as this user a "ERROR Reading from database" occurs. Ran into this error message while trying to perform dotnet ef database update with my initial migration. PostgreSQL DISTINCT ON with different ORDER BY, psql: FATAL: database “” does not exist. But right now you're not giving us any info to go on. Why does HTTPS not support non-repudiation? However, two null values are never considered equal in this comparison. Postico seems to create this function without any problems, however not thorugh node-postgres.My use case is quite similar to the one above. Can someone please post a full and preferably minimal code sample or project which triggers the issue please? You will have to edit your migrations by hand to introduce PostgreSQL equivalents of the SQL Server migrations you currently have. [Error] 42601: syntax error at or near "SELECT" - at Npgsql.NpgsqlConnector.DoReadSingleMessage (DataRowLoadingMode dataRowLoadingMode, Boolean returnNullForAsyncMessage, Boolean isPrependedMessage) [0x00000] in :0. at Npgsql.NpgsqlConnector.ReadSingleMessageWithPrepended (DataRowLoadingMode … If all you want to do is run it on PostgreSQL, do the following: Find the place in the application's context where the raw SQL is specified, and convert it to PostgreSQL (i.e. Successfully merging a pull request may close this issue. On 30 Apr, 07:30, Johan Nel wrote: > Daniel, > > > IF (SELECT credit FROM users WHERE name = 'mary') < 0 THEN This was fixed in 2.0.2, which is probably why the SQL Server-specific SQL starts creating issues for you. In the Postgres Logs I can see the following. IS NOT NULL is required only by SQL Server and it's a well known issue. It seems that Bug was a feature for some of us :). @roji Thanks for that! To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I am new to PostgreSQL and am using the query tool in PGAdmin. I am converting SQL stored procedure in postgres and in sql SP i have used OUTER apply so what would be the postgres equivalent for that...actually ON caluse is used in joins for identical column and in my case there is no as such identical column – Parth Dec 26 '14 at 9:09 'type' is a string literal, not a column name (and double quotes are not used for string literals, so "test" looks wrong as well). PostgreSQL follows the SQL standard and admits multiple null values because any comparison with NULL returns false (i.e. QUERY: SELECT device_type_id FROM $1 WHERE mac_address = $2. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. replace square brackets with double quotes). The provided sample app from @cleversoftware has a single migration script for the initial migration. Multi-Wire Branch Circuit on wrong breakers. It's better to opt out from identity columns as described in the docs, and then the migrations won't be generated in the first place. change provider to Npgsql and try to database-update. By clicking “Sign up for GitHub”, you agree to our terms of service and How do Trump's pardons of other people protect himself from potential future criminal investigations? This is all created under the hood by Npsql/EntityFramework. When you generate the migration code, the raw SQL specified for that index is going to get embedded in that migration, making it database-dependent. Please double check what exactly was working before... @roji I don't know if it is possible or not but i have this in my migration for 1 year now and we have like 10 environments that are currently running on Postgres that actually used this Migrations. The interested thing is that: Keyword distinct is not a function. In this case each row returned by the function becomes a row of the table seen by the query. I'm sorry, but I couldn't reproduce this with a simple ASP.NET app. Of course, the previous behavior was a bug. All of the queries with relationships are being aliased as names with dots in them, which is generating syntax errors. Am I right? @cleversoftware, that repo has existing migrations with indices that have filters such as [NormalizedName] IS NOT NULL. When an SQL function is declared as returning SETOF sometype, the function's final SELECT query is executed to completion, and each row it outputs is returned as an element of the result set.. However this time I have really a hard time figuring out, how I can create a PLSQL function through node-postgres. Just to make sure I am giving you full insight... @bdparrish which version of EF Core are you using exactly? The correct syntax would be: INSERT INTO HOSTS (type,name) VALUES ('test', '') - but I don't know how you need to escape that using the command line – a_horse_with_no_name Oct 24 '16 at 7:38 The text was updated successfully, but these errors were encountered: I'm not familiar with Entity Framework and I don't know who generates migration scripts, but square brackets for quoting identifiers is a feature of SQL Server. Syntax. It seems a lot of people are hitting this by starting out from the ASP.NET Identity templates (which are meant for SQL Server) and converting to PostgreSQL. Hi Guys. How to play computer from a particular position on chess.com app. I had recently upgraded my asp.net core app from using Npgsql.EntityFrameworkCore.PostgreSQL version 2.2.4 to 3.0.1. Exception. I'm finding Postgres isn't liking the "SELECT col AS" naming conventions that Sequelize is generating. [...]. run. When trying to use a code sample or an existing project, always check existing migrations and code to see if there's something coming from another database. select farechart_master_id,farechart_name,version_number_service_stype, fcm.route_id,st.service_type_name,fcm.passenger_type_id, fcm.effect_start_date,fcm.effect_end_date,fcm.nignt_service, fcm.peak_time,fcm.flexi_fare,r.route_number,r.route_direction, r.effective_from,r.effective_till from … How to deal with both a speed and an altitude crossing restriction while in VNAV PTH descent (Boeing 737NG)? Tnx! Environment. I just created a totally vanilla ASP.NET Core MVC app (dotnet new mvc -au Individual) with EF Core 2.1.0-rc1, set up Npgsql.EntityFrameworkCore.PostgreSQL as the provider, and my generated script contains the following line: Now that there is no WHERE clause on the index like in your example - are you sure you nobody's customizing the model in your application to add that? Quick fix, is to remove the Migration folder and run "Add-Migration Init" in the package manager console before running "Update-Database", to flush the SQL Server predefined context. Sorry for the coming such old item back to life (and sorry if it's a wrong one) but it's Friday 13th and zombie should be at least somewhere! worked with Entity Framework Core 2.0 with Npgsql.EntityFrameworkCore.PostgreSQL 2.0. Any change you could give 2.1.0-rc1 a run to see if the results are different? NULL != NULL). My project also was an initial migration using Npsql from the start. Now, the C# code which gets generated often contains code that is database-dependent. Below is the script that EF is trying to use created from dotnet ef migrations script -- please be aware that I have removed my custom part of the script for brevity. rev 2020.12.18.38240, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, ERROR: syntax error at or near “DISTINCT”, Podcast 297: All Time Highs: Talking crypto with Li Ouyang. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Should I give her aspirin? Tableau Online; PostgreSQL This feature is normally used when calling the function in the FROM clause.