Safe Haskell	None
Language	Haskell2010

Database.PostgreSQL.LQuery

Description

This module provides types and functions for PostgreSQL's lquery https://www.postgresql.org/docs/current/ltree.html

You will want to use a specific implementation, e.g. postgresql-simple-ltree.

Synopsis

Documentation

Wrapper for Postgres' lquery (label tree query) type.

Constructors

LQuery
Fields unLQuery :: Text

Instances details

Eq LQuery Source #
Instance details Defined in Database.PostgreSQL.LQuery Methods (==) :: LQuery -> LQuery -> Bool # (/=) :: LQuery -> LQuery -> Bool #
Ord LQuery Source #
Instance details Defined in Database.PostgreSQL.LQuery Methods compare :: LQuery -> LQuery -> Ordering # (<) :: LQuery -> LQuery -> Bool # (<=) :: LQuery -> LQuery -> Bool # (>) :: LQuery -> LQuery -> Bool # (>=) :: LQuery -> LQuery -> Bool # max :: LQuery -> LQuery -> LQuery # min :: LQuery -> LQuery -> LQuery #
Show LQuery Source #
Instance details Defined in Database.PostgreSQL.LQuery Methods showsPrec :: Int -> LQuery -> ShowS # show :: LQuery -> String # showList :: [LQuery] -> ShowS #
ToJSON LQuery Source #
Instance details Defined in Database.PostgreSQL.LQuery Methods toJSON :: LQuery -> Value # toEncoding :: LQuery -> Encoding # toJSONList :: [LQuery] -> Value # toEncodingList :: [LQuery] -> Encoding #
FromJSON LQuery Source #
Instance details Defined in Database.PostgreSQL.LQuery Methods parseJSON :: Value -> Parser LQuery # parseJSONList :: Value -> Parser [LQuery] #

Build an lquery expression which matches any ltree which contains the given label.