Grackle is structured as a compiler/interpreter. Queries are type-checked against a GraphQL schema and compiled into an internal query algebra. The query algebra may be further compiled in a backend-specific way to materialize data. In particular it can be compiled to efficient SQL and in that regard currently supports Postgres via - Doobie or Skunk.
+ Doobie or Skunk and Oracle and SQL Server via + Doobie.Grackle is an Apache 2.0 licensed Typelevel project and is available for Scala 2/3 and for Scala.js and Scala Native.
Work has been generously sponsored by - Aura/Gemini and ITV - over the last four years.
+ Aura/Gemini, ITV + and imbus AG over the last five years.Database backed mappings are tested against dockerized instances of Postgres, Oracle and SQL Server. This requires + Docker 2.20.2 or later to be installed and running on the test machine.
+Running tests (eg. rootJVM/test) will automatically spin up the relevant containers, which will stay up and can be
+ reused across multiple tests runs, significantly speeding up the test cycle. I recommend running allUp initially, to
+ pull images and initialise databases, before running tests the first time. Note that Oracle in particular takes quite
+ a long time to initialise, so expect allUp to take several minutes to complete the first time around.
Grackle is proud to be a Typelevel project. We are committed to providing a friendly, safe