PG insert_ and insert1_ uses now GenericInsert instance - generated query is without RETURNING and for many records to insert just one query is executed
new module Selda.Query.Class with backend-agnostic type classes (e.g. GenericQuery, MonadSelda) and their related functions (e.g. hoistSeldaWith)
new module Selda.Query.ShowStatement
refactored tests (queries test suite - extracted common parts)
Main changes:
Selda.SQLite3.Class
) - closes #21Selda.Query.Class
)Detailed changes: