Npgsql.PostgresException syntax error at or near "["

Hello @JordanMarr,

in our project we are moving away from SQLServer to go to PostgreSQL.

I installed SqlHydra.Npgsql tool and generated the new database files.

I also installed Npgsql and removed the System.Data.SqlClient library.

My project is now compiling how when running the tests I get the following error:

System.AggregateException: One or more errors occurred. (42601: syntax error at or near "["

POSITION: 13)
 ---> Npgsql.PostgresException (0x80004005): 42601: syntax error at or near "["

POSITION: 13
   at Npgsql.Internal.NpgsqlConnector.<ReadMessage>g__ReadMessageLong|225_0(NpgsqlConnector connector, Boolean async, DataRowLoadingMode dataRowLoadingMode, Boolean readingNotifications, Boolean isReadingPrependedMessage)
   at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
   at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
   at Npgsql.NpgsqlCommand.ExecuteReader(CommandBehavior behavior, Boolean async, CancellationToken cancellationToken)
   at Npgsql.NpgsqlCommand.ExecuteReader(CommandBehavior behavior, Boolean async, CancellationToken cancellationToken)
   at Npgsql.NpgsqlCommand.ExecuteNonQuery(Boolean async, CancellationToken cancellationToken)
  Exception data:
    Severity: ERROR
    SqlState: 42601
    MessageText: syntax error at or near "["
    Position: 13
    File: scan.l
    Line: 1176
    Routine: scanner_yyerror
   --- End of inner exception stack trace ---

I feel like the [ syntax error is because the generated SQL is for SQLServer instead of PostgreSQL.

The query which trigger the error is:

deleteAsync (Shared ctx) {
    for _ in table<dbo.EncounterForms> do
        deleteAll
}

Is there something I am missing? Is it possible to see the generated SQL by SQL Hydra to try understand the problem?

[MangelMaxime]

Oh…

I forgot to change SqlKata.Compilers.SqlServerCompiler() to SqlKata.Compilers.PostgresCompiler().

Got bitten once again by the openContext function 😅

[JordanMarr]

I haven’t tried that specifically, but i don’t see any reason why it wouldn’t work since the array types are not hardcoded.