Files
postgrest/src/PostgREST/Plan/ReadPlan.hs
T

54 lines
1.7 KiB
Haskell

module PostgREST.Plan.ReadPlan
( ReadPlanTree
, ReadPlan(..)
, JoinCondition(..)
, SpreadType(..)
) where
import Data.Tree (Tree (..))
import PostgREST.ApiRequest.Types (Alias, Depth, Hint,
JoinType, NodeName)
import PostgREST.Plan.Types (CoercibleLogicTree,
CoercibleOrderTerm,
CoercibleSelectField (..),
RelSelectField (..),
SpreadType (..))
import PostgREST.RangeQuery (NonnegRange)
import PostgREST.SchemaCache.Identifiers (FieldName,
QualifiedIdentifier)
import PostgREST.SchemaCache.Relationship (Relationship)
import Protolude
type ReadPlanTree = Tree ReadPlan
data JoinCondition =
JoinCondition
(QualifiedIdentifier, FieldName)
(QualifiedIdentifier, FieldName)
deriving (Eq, Show)
-- TODO: Enforce uniqueness of columns by changing to a Set instead of a List where applicable
data ReadPlan = ReadPlan
{ select :: [CoercibleSelectField]
, from :: QualifiedIdentifier
, fromAlias :: Maybe Alias
, where_ :: [CoercibleLogicTree]
, order :: [CoercibleOrderTerm]
, range_ :: NonnegRange
, relName :: NodeName
, relToParent :: Maybe Relationship
, relJoinConds :: [JoinCondition]
, relAlias :: Maybe Alias
, relAggAlias :: Alias
, relHint :: Maybe Hint
, relJoinType :: Maybe JoinType
, relSpread :: Maybe SpreadType
, relSelect :: [RelSelectField]
, depth :: Depth
-- ^ used for aliasing
}
deriving (Eq, Show)