| Copyright | (c) Soostone Inc 2020 |
|---|---|
| License | AllRightsReserved |
| Stability | experimental |
| Portability | POSIX |
| Safe Haskell | None |
| Language | Haskell2010 |
Napkin.Untyped.Ops
Contents
Description
Synopsis
- avg :: SExp -> SExp
- max :: SExp -> SExp
- min :: SExp -> SExp
- sum :: SExp -> SExp
- count :: SExp -> SExp
- countd :: SExp -> SExp
- nullary :: Ref Function -> SExp
- unary :: Ref Function -> SExp -> SExp
- binary :: Ref Function -> SExp -> SExp -> SExp
- triple :: Ref Function -> SExp -> SExp -> SExp -> SExp
- multiple :: Ref Function -> [SExp] -> SExp
- raw :: String -> SExp
- simpleWindow :: Ref Function -> [SExp] -> WOver -> Maybe NullStrategy -> SExp
- modExtern :: Ref Function -> [SExp] -> [FunModifier] -> SExp
- case_ :: [(SExp, SExp)] -> SExp -> SExp
- caseMatch_ :: SExp -> [(SExp, SExp)] -> SExp -> SExp
- if_ :: SExp -> SExp -> SExp -> SExp
- sign :: SExp -> SExp
- (/.) :: SExp -> SExp -> SExp
- cast :: SExp -> Type -> SExp
- asText :: SExp -> SExp
- asDouble :: SExp -> SExp
- asInt :: SExp -> SExp
- asBool :: SExp -> SExp
- asDate :: SExp -> SExp
- asTimestamp :: SExp -> SExp
- (==.) :: SExp -> SExp -> SExp
- (/=.) :: SExp -> SExp -> SExp
- (>=.) :: SExp -> SExp -> SExp
- (>.) :: SExp -> SExp -> SExp
- (<=.) :: SExp -> SExp -> SExp
- (<.) :: SExp -> SExp -> SExp
- is :: SExp -> SExp -> SExp
- isNot :: SExp -> SExp -> SExp
- isNull :: SExp -> SExp
- notNull :: SExp -> SExp
- exists :: Query -> SExp
- notExists :: Query -> SExp
- in_ :: SExp -> [SExp] -> SExp
- notIn :: SExp -> [SExp] -> SExp
- always :: SExp
- never :: SExp
- any_ :: SExp -> SExp
- all_ :: SExp -> SExp
- some_ :: SExp -> SExp
- not :: SExp -> SExp
- (.&&.) :: SExp -> SExp -> SExp
- (.||.) :: SExp -> SExp -> SExp
- and :: [SExp] -> SExp
- or :: [SExp] -> SExp
- maxOf :: SExp -> SExp -> SExp
- minOf :: SExp -> SExp -> SExp
- hardCount :: SExp
- valueIf :: SExp -> SExp -> SExp -> SExp
- nullifyUnless :: SExp -> SExp -> SExp
- nullifyIf :: SExp -> SExp -> SExp
- nullifyIfEmpty :: SExp -> SExp
- deepApply :: (SExp -> SExp) -> SExp -> SExp
- isEmpty :: SExp -> SExp
- notEmpty :: SExp -> SExp
- countTrue :: SExp -> SExp
- boolToInt :: SExp -> SExp
- scopeGeneric :: [(Ref Function, SExp)] -> SExp -> SExp -> SExp
- data BackendFunctionMeta = BackendFunctionMeta {}
- backendFunctionMeta_analytics :: Lens' BackendFunctionMeta [Ref Function]
- backendFunctionMeta_aggs :: Lens' BackendFunctionMeta [(Ref Function, SExp)]
- inferAggGeneric :: BackendFunctionMeta -> SExp -> AggLevel
- unitBoundaryGeneric :: BackendFunctionMeta -> SExp -> [SExp]
- modifyUnitBoundaryGeneric :: BackendFunctionMeta -> (SExp -> SExp) -> SExp -> SExp
Documentation
simpleWindow :: Ref Function -> [SExp] -> WOver -> Maybe NullStrategy -> SExp #
asTimestamp :: SExp -> SExp #
nullifyUnless :: SExp -> SExp -> SExp #
Set to null unless predicate is true
nullifyIfEmpty :: SExp -> SExp #
Make empty string NULL.
deepApply :: (SExp -> SExp) -> SExp -> SExp #
Apply a function on Lits and Vars, recursing deep into function calls, etc.
Common case of a string column possibly being empty either by being a blank string or properly being NULL.
scopeGeneric :: [(Ref Function, SExp)] -> SExp -> SExp -> SExp #
TODO. This is may have holes; we need a principled end-to-end review of this transformation. Perhaps even put it as a primitive into the SExp type.
data BackendFunctionMeta #
Constructors
| BackendFunctionMeta | |
Fields
| |
Instances
| Eq BackendFunctionMeta # | |
Defined in Napkin.Untyped.Ops Methods (==) :: BackendFunctionMeta -> BackendFunctionMeta -> Bool # (/=) :: BackendFunctionMeta -> BackendFunctionMeta -> Bool # | |
| Show BackendFunctionMeta # | |
Defined in Napkin.Untyped.Ops Methods showsPrec :: Int -> BackendFunctionMeta -> ShowS # show :: BackendFunctionMeta -> String # showList :: [BackendFunctionMeta] -> ShowS # | |
inferAggGeneric :: BackendFunctionMeta -> SExp -> AggLevel #
Infer aggregation level of an expression.
TODO: ExternRaw and NativeExpr cant be inferred at the moment; needs more info inside the SExp if this becomes a problem.
unitBoundaryGeneric :: BackendFunctionMeta -> SExp -> [SExp] #
Explore expression's insides to pull out top level Unit
expressions within its branches, but no deeper in each branch.
Originally created to help with common expression caching - since you can commonolize unit-level expressions without any side-effect.
modifyUnitBoundaryGeneric :: BackendFunctionMeta -> (SExp -> SExp) -> SExp -> SExp #