graphql-engine-1.0.0: GraphQL API over Postgres
Safe HaskellNone
LanguageHaskell2010

Hasura.SQL.Tag

Synopsis

Documentation

data BackendTag (b :: BackendType) where Source #

A singleton-like GADT that associates a tag to each backend.

Constructors

PostgresVanillaTag :: BackendTag ('Postgres 'Vanilla) 
PostgresCitusTag :: BackendTag ('Postgres 'Citus) 
PostgresCockroachTag :: BackendTag ('Postgres 'Cockroach) 
MSSQLTag :: BackendTag 'MSSQL 
BigQueryTag :: BackendTag 'BigQuery 
MySQLTag :: BackendTag 'MySQL 
DataConnectorTag :: BackendTag 'DataConnector 

class HasTag (b :: BackendType) where Source #

This class describes how to get a tag for a given type. We use it in AnyBackend: `case backendTag @b of`...

Methods

backendTag :: BackendTag b Source #

Instances

Instances details
HasTag 'MSSQL Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag 'MSSQL Source #

HasTag 'BigQuery Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag 'BigQuery Source #

HasTag 'MySQL Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag 'MySQL Source #

HasTag 'DataConnector Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag 'DataConnector Source #

HasTag ('Postgres 'Vanilla) Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag ('Postgres 'Vanilla) Source #

HasTag ('Postgres 'Citus) Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag ('Postgres 'Citus) Source #

HasTag ('Postgres 'Cockroach) Source # 
Instance details

Defined in Hasura.SQL.Tag

Methods

backendTag :: BackendTag ('Postgres 'Cockroach) Source #

reify :: BackendTag b -> BackendType Source #

How to convert back from a tag to a runtime value.