C# Project Info
It's a simple Console app project just for testing ArcadeDB standalone server with C#,
These are the only dependencies:
<ItemGroup>
<PackageReference Include="Dapper" Version="2.1.72" />
<PackageReference Include="Npgsql" Version="10.0.2" />
</ItemGroup>
Important information
The connection does get established successfully between my C# app and ArcadeDB standalone server.
If I don't use Npgsql Named or positional parameters when passing and executing a query, it does work and i do get data.
Issue Details:
Code that Causes the Exception:
string targetName = "Keanu Reeves";
string cypherFilterQuery = @"{cypher} MATCH (p:Person {name: @Name})
RETURN p.name AS Name, p.born AS Born";
var person = await conn.QuerySingleAsync<Person>(cypherFilterQuery, new {Name = targetName});
Console.WriteLine($"Info on Keanu Reeves: {person.Name}, {person.Born}");
When above code is executed, this exception occurs:
Unhandled exception. Npgsql.PostgresException (0x80004005): XX000: Error on parsing bind message: Type with code 25 not supported for deserializing
at Npgsql.Internal.NpgsqlConnector.ReadMessageLong(Boolean async, DataRowLoadingMode dataRowLoadingMode, Boolean readingNotifications, Boolean isReadingPrependedMessage)
at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder1.StateMachineBox1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
at Npgsql.NpgsqlCommand.ExecuteReader(Boolean async, CommandBehavior behavior, CancellationToken cancellationToken)
at Npgsql.NpgsqlCommand.ExecuteDbDataReaderAsync(CommandBehavior behavior, CancellationToken cancellationToken)
at Dapper.SqlMapper.QueryRowAsync[T](IDbConnection cnn, Row row, Type effectiveType, CommandDefinition command) in /_/Dapper/SqlMapper.Async.cs:line 489
at GraphDB_programs.Class1.Main(String[] args) in D:\POCs\GraphDB programs\Class1.cs:line 93
at GraphDB_programs.Class1.
(String[] args)
Exception data:
Severity: ERROR
SqlState: XX000
MessageText: Error on parsing bind message: Type with code 25 not supported for deserializing.
I would be thankful if this problem is solved.
C# Project Info
It's a simple Console app project just for testing ArcadeDB standalone server with C#,
These are the only dependencies:
Important information
The connection does get established successfully between my C# app and ArcadeDB standalone server.
If I don't use Npgsql Named or positional parameters when passing and executing a query, it does work and i do get data.
Issue Details:
Code that Causes the Exception:
When above code is executed, this exception occurs:
Unhandled exception. Npgsql.PostgresException (0x80004005): XX000: Error on parsing bind message: Type with code 25 not supported for deserializing
(String[] args)at Npgsql.Internal.NpgsqlConnector.ReadMessageLong(Boolean async, DataRowLoadingMode dataRowLoadingMode, Boolean readingNotifications, Boolean isReadingPrependedMessage)
at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder
1.StateMachineBox1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
at Npgsql.NpgsqlCommand.ExecuteReader(Boolean async, CommandBehavior behavior, CancellationToken cancellationToken)
at Npgsql.NpgsqlCommand.ExecuteDbDataReaderAsync(CommandBehavior behavior, CancellationToken cancellationToken)
at Dapper.SqlMapper.QueryRowAsync[T](IDbConnection cnn, Row row, Type effectiveType, CommandDefinition command) in /_/Dapper/SqlMapper.Async.cs:line 489
at GraphDB_programs.Class1.Main(String[] args) in D:\POCs\GraphDB programs\Class1.cs:line 93
at GraphDB_programs.Class1.
Exception data:
Severity: ERROR
SqlState: XX000
MessageText: Error on parsing bind message: Type with code 25 not supported for deserializing.
I would be thankful if this problem is solved.