orville-postgresql-1.0.0.0: A Haskell library for PostgreSQL
CopyrightFlipstone Technology Partners 2023
LicenseMIT
StabilityStable
Safe HaskellSafe-Inferred
LanguageHaskell2010

Orville.PostgreSQL.Expr.IfExists

Description

Since: 1.0.0.0

Synopsis

Documentation

data IfExists Source #

Type to represent a SQL "IF EXISTS" expression. E.G.

IF EXISTS

IfExists provides a SqlExpression instance. See unsafeSqlExpression for how to construct a value with your own custom SQL.

Since: 1.0.0.0

Instances

Instances details
SqlExpression IfExists Source #

Since: 1.0.0.0

Instance details

Defined in Orville.PostgreSQL.Expr.IfExists

Methods

toRawSql :: IfExists -> RawSql Source #

unsafeFromRawSql :: RawSql -> IfExists Source #

ifExists :: IfExists Source #

A value of the SQL "IF EXISTS".

Since: 1.0.0.0