OptionalhostOptionalportOptionaluserOptionalpasswordOptionaldatabaseOptionalconnectionFull connection string (postgres://...), an alternative to the discrete fields.
OptionalconnectionEscape hatch for any other pg client option.
OptionalclientA pre-built pg Client (or compatible mock). When provided, connect()
uses it directly and skips require('pg'). This is how tests inject a
mock without the real driver installed.
Connection options for
MaterializeStore(map ontopgclient config).