#1400 postgres plugin not downloaded

[Roger Pack]

As a note after running the installer jar on OS X, and checking "plugin PostgreSQL" when I start squirrel, the postgres option for a new alias still has a red "x" next to it, and doesn't connect: "JDBC Driver class not found class java.lang.ClassNotFoundException: org.postgresql.Driver"

[Gerd Wagner]

There's a misunderstanding:
The Postgres plugin doesn't provide the Postgres JDBC driver, which can be downloaded here
https://jdbc.postgresql.org/download.html
and in SQuirreL needs to be added to the "Extra Class Path" of your driver definition.
Currently you should download the "42.2.6 JDBC 42" version of the driver.

The Postgres plugin adds some Postgres specific functions to SQuirreL once you are connected to a Postgres database.