Database.Esqueleto.TextSearch.Language

Documentation

(@@.) :: SqlExpr (Value TsVector) -> SqlExpr (Value (TsQuery Lexemes)) -> SqlExpr (Value Bool)

prefixAndQuery :: SearchTerm -> SqlExpr (Value (TsQuery Lexemes))

format the query into lexemes the result can be used in @@. for example:

     where_ $ (index ^. UnitSearchIndexDocument) @@. prefixAndQuery query
  

toSearchTerm :: Text -> Maybe SearchTerm

constructs a valid search query, removes a bunch of illegal characters and splits the terms for better results

data SearchTerm

A valid search term

Instances

Show SearchTerm

Defined in Database.Esqueleto.TextSearch.Language

Methods

showsPrec :: Int -> SearchTerm -> ShowS

show :: SearchTerm -> String

showList :: [SearchTerm] -> ShowS

to_tsvector :: IsString a => SqlExpr (Value RegConfig) -> SqlExpr (Value a) -> SqlExpr (Value TsVector)

to_tsquery :: SqlExpr (Value RegConfig) -> SqlExpr (Value (TsQuery Words)) -> SqlExpr (Value (TsQuery Lexemes))

plainto_tsquery :: SqlExpr (Value RegConfig) -> SqlExpr (Value Text) -> SqlExpr (Value (TsQuery Lexemes))

ts_rank :: SqlExpr (Value Weights) -> SqlExpr (Value TsVector) -> SqlExpr (Value (TsQuery Lexemes)) -> SqlExpr (Value [NormalizationOption]) -> SqlExpr (Value Double)

ts_rank_cd :: SqlExpr (Value Weights) -> SqlExpr (Value TsVector) -> SqlExpr (Value (TsQuery Lexemes)) -> SqlExpr (Value [NormalizationOption]) -> SqlExpr (Value Double)

setweight :: SqlExpr (Value TsVector) -> SqlExpr (Value Weight) -> SqlExpr (Value TsVector)