| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
PgQuery
Synopsis
- module PgQuery.Internal.Proto.PgQuery
- module PgQuery.Internal.Proto.PgQuery_Fields
- parseSql :: String -> IO (Either String ParseResult)
Documentation
parseSql :: String -> IO (Either String ParseResult) Source #
Parses SQL, returning the internal PostgreSQL parse tree as a
ParseResult.
Here's an example:
main :: IO ()
main = do
eResult <- parseSql "select u.name, u.address from users u where u.id = $1"
case eResult of
Left err -> error err
Right result -> print result
To make meaningful use of the ParseResult, you'll want to use
Control.Lens in conjunction with the functions provided in
PgQuery.Internal.Proto.PgQuery_Fields. See
here
for a tutorial on how to use lenses.
The tests for this library also contain some examples which may serve as a helpful reference.