graphql-engine-1.0.0: GraphQL API over Postgres

Safe Haskell	None
Language	Haskell2010

Hasura.Backends.Postgres.Translate.Update

Description

Postgres Translate Update

Translates IR update to Postgres-specific SQL UPDATE statements.

Synopsis

data UpdateCTE
- = Update TopLevelCTE
- | MultiUpdate [TopLevelCTE]
mkUpdateCTE :: forall pgKind. Backend ('Postgres pgKind) => AnnotatedUpdate ('Postgres pgKind) -> UpdateCTE
expandOperator :: [ColumnInfo ('Postgres pgKind)] -> (PGCol, UpdateOpExpression SQLExp) -> SetExpItem

Documentation

data UpdateCTE Source #

Constructors

Update TopLevelCTE	Used for update_table and update_table_by_pk.
MultiUpdate [TopLevelCTE]	Used for update_table_many.

mkUpdateCTE :: forall pgKind. Backend ('Postgres pgKind) => AnnotatedUpdate ('Postgres pgKind) -> UpdateCTE Source #

Create the update CTE.

expandOperator :: [ColumnInfo ('Postgres pgKind)] -> (PGCol, UpdateOpExpression SQLExp) -> SetExpItem Source #