Postgres writer always defaults to 5423 no matter what Port value you specify in the DB connection string.

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When using the Postgres Writer to connect and write data to a different Postgres port the DB Connection String Port= is being over written by the default value of 5432, and therefore I was seeing 'Connection refused' messages.

e.g. User ID=postgres;Password=*****;Host=mypostgresbox;Port=5434;Database=logshark;Pooling=true;

I found a workaround to select a different port looking at the code of this bit, where it extracts the port from the db hostname.

Logshark/LogShark/Writers/Sql/PostgresWriterFactory.cs

Line 95 in c6a53bd

var r = Regex.Match(host, @"(?<host>.*?)(:?(?<port>\d+))?$");

I modified my connection string as follows:
e.g. User ID=postgres;Password=*****;Host=mypostgresbox:5434;Port=5434;Database=logshark;Pooling=true;

After this the Postgres Writer was able to write data to my postgres instance listening on a different port.