napkin-0.5.9
Copyright(c) Soostone Inc 2020
LicenseAllRightsReserved
Stabilityexperimental
PortabilityPOSIX
Safe HaskellNone
LanguageHaskell2010

Napkin.Optimization.UnusedCteFields

Description

 

Documentation

detectUnusedColumns :: Query -> [(Ref Table, Selected SExp)] #

discoverUnusedCteFields :: Query -> CteTables #

fieldsOfCteQueries :: WithClauses -> CteTables #

type CteTables = Map TableName [CteField] #

data CteField #

Constructors

CteField 

Fields

Instances

Instances details
Eq CteField # 
Instance details

Defined in Napkin.Optimization.UnusedCteFields

Methods

(==) :: CteField -> CteField -> Bool #

(/=) :: CteField -> CteField -> Bool #

Ord CteField # 
Instance details

Defined in Napkin.Optimization.UnusedCteFields

Methods

compare :: CteField -> CteField -> Ordering #

(<) :: CteField -> CteField -> Bool #

(<=) :: CteField -> CteField -> Bool #

(>) :: CteField -> CteField -> Bool #

(>=) :: CteField -> CteField -> Bool #

max :: CteField -> CteField -> CteField #

min :: CteField -> CteField -> CteField #

Show CteField # 
Instance details

Defined in Napkin.Optimization.UnusedCteFields

Methods

showsPrec :: Int -> CteField -> ShowS #

show :: CteField -> String #

showList :: [CteField] -> ShowS #

fromFields :: CteStack -> From -> [CteField] #

filterFieldsByTable :: Maybe TableName -> [CteField] -> [CteField] #

alias2MaybePrefixedName :: Alias SExp -> (Maybe TableName, Either FieldName [FieldName]) #