opaleye-0.3: An SQL-generating DSL targeting PostgreSQL

Safe Haskell	Safe-Inferred
Language	Haskell98

Opaleye.Internal.HaskellDB.PrimQuery

Documentation

type TableName = String Source

type Attribute = String Source

type Name = String Source

type Scheme = [Attribute] Source

type Assoc = [(Attribute, PrimExpr)] Source

data Symbol Source

Constructors

Symbol String Tag

Instances

Read Symbol
Show Symbol

data PrimExpr Source

Constructors

AttrExpr Symbol
BaseTableAttrExpr Attribute
BinExpr BinOp PrimExpr PrimExpr
UnExpr UnOp PrimExpr
AggrExpr AggrOp PrimExpr
ConstExpr Literal
CaseExpr [(PrimExpr, PrimExpr)] PrimExpr
ListExpr [PrimExpr]
ParamExpr (Maybe Name) PrimExpr
FunExpr Name [PrimExpr]
CastExpr Name PrimExpr	Cast an expression to a given type.

Instances

Read PrimExpr
Show PrimExpr

data Literal Source

Constructors

NullLit
DefaultLit	represents a default value
BoolLit Bool
StringLit String
IntegerLit Integer
DoubleLit Double
OtherLit String	used for hacking in custom SQL

Instances

Read Literal
Show Literal

data BinOp Source

Constructors

OpEq
OpLt
OpLtEq
OpGt
OpGtEq
OpNotEq
OpAnd
OpOr
OpLike
OpIn
OpOther String
OpCat
OpPlus
OpMinus
OpMul
OpDiv
OpMod
OpBitNot
OpBitAnd
OpBitOr
OpBitXor
OpAsg

Instances

Read BinOp
Show BinOp

data UnOp Source

Constructors

OpNot
OpIsNull
OpIsNotNull
OpLength
OpAbs
OpNegate
OpLower
OpUpper
UnOpOther String

Instances

Read UnOp
Show UnOp

data AggrOp Source

Constructors

AggrCount
AggrSum
AggrAvg
AggrMin
AggrMax
AggrStdDev
AggrStdDevP
AggrVar
AggrVarP
AggrBoolOr
AggrBoolAnd
AggrOther String

Instances

Read AggrOp
Show AggrOp

data OrderExpr Source

Constructors

OrderExpr OrderOp PrimExpr

Instances

data OrderOp Source

Constructors

OpAsc
OpDesc

Instances