change: change log-query string value to bool

BREAKING CHANGE

As discussed on #3934 (comment),
this changes log-query to use a bool value, this:

- Simplifies config for users.
- Reduces effort in testing the different combinations.

Closes #3934

Author: steve-chavez

CHANGELOG.md

@@ -21,6 +21,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 - Drop support for PostgreSQL EOL version 12 by @wolfgangwalther in #3865
 - Replaced `jwt-cache-max-lifetime` config with `jwt-cache-max-entries` by @mkleczek in #4084
+- `log-query` config now takes a boolean instead of a string value by @steve-chavez in #3934
 
 ## [13.0.7] - 2025-09-14
 

docs/references/configuration.rst

@@ -714,23 +714,14 @@ log-query
 ---------
 
   =============== =================================
-  **Type**        String
-  **Default**     "disabled"
+  **Type**        Boolean
+  **Default**     False
   **Reloadable**  Y
   **Environment** PGRST_LOG_QUERY
   **In-Database** `n/a`
   =============== =================================
 
-  Logs the SQL query for the corresponding request at the current :ref:`log-level`.
-  See :ref:`sql_query_logs`.
-
-    .. code:: bash
-
-        # Logs the main SQL query
-        log-query = "main-query"
-
-        # Disables logging the SQL query
-        log-query = "disabled"
+  Logs the SQL query for the corresponding request at the current :ref:`log-level`. See :ref:`sql_query_logs`.
 
 .. _openapi-mode:
 

docs/references/observability.rst

@@ -52,14 +52,12 @@ For diagnostic information about the server itself, PostgREST logs to ``stderr``
 SQL Query Logs
 --------------
 
-To log the :ref:`main SQL query <main_query>` executed for a request, set the :ref:`log-query` to ``main-query``.
-It will be logged based on the current :ref:`log-level` setting.
-For example, with this configuration:
+To log the SQL queries executed for a request, set the :ref:`log-query` to ``true``. It will be logged based on the current :ref:`log-level` setting.
 
 .. code-block:: bash
 
   log-level = "warn"
-  log-query = "main-query"
+  log-query = "true"
 
 The SQL queries will only be logged on ``400`` HTTP errors and up.
 So, if the user requests a resource without sufficient privileges:

src/PostgREST/App.hs

@@ -44,8 +44,7 @@ import qualified PostgREST.Unix       as Unix (installSignalHandlers)
 import PostgREST.ApiRequest           (ApiRequest (..))
 import PostgREST.AppState             (AppState)
 import PostgREST.Auth.Types           (AuthResult (..))
-import PostgREST.Config               (AppConfig (..), LogLevel (..),
-                                       LogQuery (..))
+import PostgREST.Config               (AppConfig (..), LogLevel (..))
 import PostgREST.Error                (Error)
 import PostgREST.Network              (resolveSocketToAddress)
 import PostgREST.Observation          (Observation (..))
@@ -146,7 +145,7 @@ postgrestResponse appState conf@AppConfig{..} maybeSchemaCache authResult@AuthRe
   let mainQ = Query.mainQuery plan conf apiReq authResult configDbPreRequest
       tx = MainTx.mainTx mainQ conf authResult apiReq plan sCache
       observer = AppState.getObserver appState
-      obsQuery s = when (configLogQuery /= LogQueryDisabled) $ observer $ QueryObs mainQ s
+      obsQuery s = when configLogQuery $ observer $ QueryObs mainQ s
 
   (txTime, txResult) <- withTiming $ do
     case tx of

src/PostgREST/Config.hs

@@ -17,7 +17,6 @@ module PostgREST.Config
   , JSPathExp(..)
   , FilterExp(..)
   , LogLevel(..)
-  , LogQuery(..)
   , OpenAPIMode(..)
   , Proxy(..)
   , toText
@@ -99,7 +98,7 @@ data AppConfig = AppConfig
   , configJwtSecretIsBase64        :: Bool
   , configJwtCacheMaxEntries       :: Int
   , configLogLevel                 :: LogLevel
-  , configLogQuery                 :: LogQuery
+  , configLogQuery                 :: Bool
   , configOpenApiMode              :: OpenAPIMode
   , configOpenApiSecurityActive    :: Bool
   , configOpenApiServerProxyUri    :: Maybe Text
@@ -128,14 +127,6 @@ dumpLogLevel = \case
   LogInfo  -> "info"
   LogDebug -> "debug"
 
-data LogQuery = LogQueryMain | LogQueryDisabled
-  deriving (Eq)
-
-dumpLogQuery :: LogQuery -> Text
-dumpLogQuery = \case
-  LogQueryMain     -> "main-query"
-  LogQueryDisabled -> "disabled"
-
 data OpenAPIMode = OAFollowPriv | OAIgnorePriv | OADisabled
   deriving Eq
 
@@ -179,7 +170,7 @@ toText conf =
       ,("jwt-secret-is-base64",          T.toLower . show . configJwtSecretIsBase64)
       ,("jwt-cache-max-entries",         show . configJwtCacheMaxEntries)
       ,("log-level",                 q . dumpLogLevel . configLogLevel)
-      ,("log-query",                 q . dumpLogQuery . configLogQuery)
+      ,("log-query",                     T.toLower . show . configLogQuery)
       ,("openapi-mode",              q . dumpOpenApiMode . configOpenApiMode)
       ,("openapi-security-active",       T.toLower . show . configOpenApiSecurityActive)
       ,("openapi-server-proxy-uri",  q . fromMaybe mempty . configOpenApiServerProxyUri)
@@ -289,7 +280,7 @@ parser optPath env dbSettings roleSettings roleIsolationLvl =
           (optBool "secret-is-base64"))
     <*> (fromMaybe 1000 <$> optInt "jwt-cache-max-entries")
     <*> parseLogLevel "log-level"
-    <*> parseLogQuery "log-query"
+    <*> (fromMaybe False <$> optBool "log-query")
     <*> parseOpenAPIMode "openapi-mode"
     <*> (fromMaybe False <$> optBool "openapi-security-active")
     <*> parseOpenAPIServerProxyURI "openapi-server-proxy-uri"
@@ -365,14 +356,6 @@ parser optPath env dbSettings roleSettings roleIsolationLvl =
         Just "debug" -> pure LogDebug
         Just _       -> fail "Invalid logging level. Check your configuration."
 
-    parseLogQuery :: C.Key -> C.Parser C.Config LogQuery
-    parseLogQuery k =
-      optString k >>= \case
-        Nothing           -> pure  LogQueryDisabled
-        Just "disabled"   -> pure  LogQueryDisabled
-        Just "main-query" -> pure  LogQueryMain
-        Just _            -> fail "Invalid SQL logging value. Check your configuration."
-
     parseTxEnd :: C.Key -> ((Bool, Bool) -> Bool) -> C.Parser C.Config Bool
     parseTxEnd k f =
       optString k >>= \case

test/io/configs/expected/aliases.config

@@ -25,7 +25,7 @@ jwt-secret = ""
 jwt-secret-is-base64 = true
 jwt-cache-max-entries = 1000
 log-level = "error"
-log-query = "disabled"
+log-query = false
 openapi-mode = "follow-privileges"
 openapi-security-active = false
 openapi-server-proxy-uri = ""

test/io/configs/expected/boolean-numeric.config

@@ -25,7 +25,7 @@ jwt-secret = ""
 jwt-secret-is-base64 = true
 jwt-cache-max-entries = 1000
 log-level = "error"
-log-query = "disabled"
+log-query = false
 openapi-mode = "follow-privileges"
 openapi-security-active = false
 openapi-server-proxy-uri = ""

test/io/configs/expected/boolean-string.config

@@ -25,7 +25,7 @@ jwt-secret = ""
 jwt-secret-is-base64 = true
 jwt-cache-max-entries = 1000
 log-level = "error"
-log-query = "disabled"
+log-query = false
 openapi-mode = "follow-privileges"
 openapi-security-active = false
 openapi-server-proxy-uri = ""

test/io/configs/expected/defaults.config

@@ -25,7 +25,7 @@ jwt-secret = ""
 jwt-secret-is-base64 = false
 jwt-cache-max-entries = 1000
 log-level = "error"
-log-query = "disabled"
+log-query = false
 openapi-mode = "follow-privileges"
 openapi-security-active = false
 openapi-server-proxy-uri = ""

test/io/configs/expected/jwt-role-claim-key1.config

@@ -25,7 +25,7 @@ jwt-secret = ""
 jwt-secret-is-base64 = false
 jwt-cache-max-entries = 1000
 log-level = "error"
-log-query = "disabled"
+log-query = false
 openapi-mode = "follow-privileges"
 openapi-security-active = false
 openapi-server-proxy-uri = ""