CONNECTION
The full syntax of CONNECTION blocks is as follows
CONNECTION 'CONNECTION_NAME' [EXTERN 'CONNECTION_FILE'] (
DRIVER = 'CONNECTION_DRIVER_NAME' [, CONNECTION_OPTIONS]
)
A connection represents a data source and/or a data sink that can be queried against or that rows can be sent to.
Connection options are driver-specific. Currently supported drivers are:
mssql: Microsoft SQL Server database (Source/Sink)sqlite3: SQLite 3 database (Source/Sink)postgres: Postgres database (Source/Sink)excel: Microsoft Excel 2010+ (Source/Sink)mandrill: Mandrill email API (Sink only)http: an API served over HTTP (Source only)