mirror of
https://github.com/hasura/graphql-engine.git
synced 2024-12-23 07:22:53 +03:00
7e334e08a4
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/8947 GitOrigin-RevId: 18e52c928e1df535579e2077b4af6c2ce92bdcef
486 lines
19 KiB
Haskell
486 lines
19 KiB
Haskell
{-# LANGUAGE QuasiQuotes #-}
|
||
{-# LANGUAGE TemplateHaskell #-}
|
||
|
||
-- | Postgres DDL RunSQL
|
||
--
|
||
-- Escape hatch for running raw SQL against a postgres database.
|
||
--
|
||
-- 'runRunSQL' executes the provided raw SQL.
|
||
--
|
||
-- 'isSchemaCacheBuildRequiredRunSQL' checks for known schema-mutating keywords
|
||
-- in the raw SQL text.
|
||
--
|
||
-- See 'Hasura.Server.API.V2Query' and 'Hasura.Server.API.Query'.
|
||
module Hasura.Backends.Postgres.DDL.RunSQL
|
||
( runRunSQL,
|
||
RunSQL (..),
|
||
isReadOnly,
|
||
isSchemaCacheBuildRequiredRunSQL,
|
||
)
|
||
where
|
||
|
||
import Control.Monad.Trans.Control (MonadBaseControl)
|
||
import Data.Aeson
|
||
import Data.HashMap.Strict qualified as HashMap
|
||
import Data.HashSet qualified as HS
|
||
import Data.List.NonEmpty qualified as NE
|
||
import Data.Text.Extended
|
||
import Database.PG.Query qualified as PG
|
||
import Hasura.Backends.Postgres.Connection.MonadTx
|
||
import Hasura.Backends.Postgres.DDL.EventTrigger
|
||
import Hasura.Backends.Postgres.DDL.Source
|
||
( FetchFunctionMetadata,
|
||
FetchTableMetadata,
|
||
ToMetadataFetchQuery,
|
||
fetchFunctionMetadata,
|
||
fetchTableMetadata,
|
||
)
|
||
import Hasura.Backends.Postgres.Execute.Types
|
||
import Hasura.Backends.Postgres.SQL.Types hiding (FunctionName, TableName)
|
||
import Hasura.Base.Error
|
||
import Hasura.EncJSON
|
||
import Hasura.Function.Cache
|
||
import Hasura.Prelude
|
||
import Hasura.RQL.DDL.Schema
|
||
import Hasura.RQL.DDL.Schema.Diff qualified as Diff
|
||
import Hasura.RQL.Types.Backend
|
||
import Hasura.RQL.Types.BackendType
|
||
import Hasura.RQL.Types.Common
|
||
import Hasura.RQL.Types.ComputedField
|
||
import Hasura.RQL.Types.EventTrigger
|
||
import Hasura.RQL.Types.Metadata hiding
|
||
( tmComputedFields,
|
||
tmTable,
|
||
)
|
||
import Hasura.RQL.Types.Metadata.Backend
|
||
import Hasura.RQL.Types.SchemaCache
|
||
import Hasura.RQL.Types.SchemaCache.Build
|
||
import Hasura.RQL.Types.SchemaCacheTypes
|
||
import Hasura.RQL.Types.Source
|
||
import Hasura.RQL.Types.Table
|
||
import Hasura.SQL.AnyBackend qualified as AB
|
||
import Hasura.Server.Utils (quoteRegex)
|
||
import Hasura.Session
|
||
import Hasura.Tracing qualified as Tracing
|
||
import Text.Regex.TDFA qualified as TDFA
|
||
|
||
data RunSQL = RunSQL
|
||
{ rSql :: Text,
|
||
rSource :: SourceName,
|
||
rCascade :: Bool,
|
||
rCheckMetadataConsistency :: Maybe Bool,
|
||
rTxAccessMode :: PG.TxAccess
|
||
}
|
||
deriving (Show, Eq)
|
||
|
||
instance FromJSON RunSQL where
|
||
parseJSON = withObject "RunSQL" $ \o -> do
|
||
rSql <- o .: "sql"
|
||
rSource <- o .:? "source" .!= defaultSource
|
||
rCascade <- o .:? "cascade" .!= False
|
||
rCheckMetadataConsistency <- o .:? "check_metadata_consistency"
|
||
readOnly <- o .:? "read_only" .!= False
|
||
let rTxAccessMode = if readOnly then PG.ReadOnly else PG.ReadWrite
|
||
pure RunSQL {..}
|
||
|
||
instance ToJSON RunSQL where
|
||
toJSON RunSQL {..} =
|
||
object
|
||
[ "sql" .= rSql,
|
||
"source" .= rSource,
|
||
"cascade" .= rCascade,
|
||
"check_metadata_consistency" .= rCheckMetadataConsistency,
|
||
"read_only"
|
||
.= case rTxAccessMode of
|
||
PG.ReadOnly -> True
|
||
PG.ReadWrite -> False
|
||
]
|
||
|
||
-- | Check for known schema-mutating keywords in the raw SQL text.
|
||
--
|
||
-- See Note [Checking metadata consistency in run_sql].
|
||
isSchemaCacheBuildRequiredRunSQL :: RunSQL -> Bool
|
||
isSchemaCacheBuildRequiredRunSQL RunSQL {..} =
|
||
case rTxAccessMode of
|
||
PG.ReadOnly -> False
|
||
PG.ReadWrite -> fromMaybe (containsDDLKeyword rSql) rCheckMetadataConsistency
|
||
where
|
||
containsDDLKeyword =
|
||
TDFA.match
|
||
$$( quoteRegex
|
||
TDFA.defaultCompOpt
|
||
{ TDFA.caseSensitive = False,
|
||
TDFA.multiline = True,
|
||
TDFA.lastStarGreedy = True
|
||
}
|
||
TDFA.defaultExecOpt
|
||
{ TDFA.captureGroups = False
|
||
}
|
||
"\\balter\\b|\\bdrop\\b|\\breplace\\b|\\bcreate function\\b|\\bcomment on\\b"
|
||
)
|
||
|
||
isReadOnly :: RunSQL -> Bool
|
||
isReadOnly runsql =
|
||
case rTxAccessMode runsql of
|
||
PG.ReadOnly -> True
|
||
PG.ReadWrite -> False
|
||
|
||
{- Note [Checking metadata consistency in run_sql]
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
SQL queries executed by run_sql may change the Postgres schema in arbitrary
|
||
ways. We attempt to automatically update the metadata to reflect those changes
|
||
as much as possible---for example, if a table is renamed, we want to update the
|
||
metadata to track the table under its new name instead of its old one. This
|
||
schema diffing (plus some integrity checking) is handled by withMetadataCheck.
|
||
|
||
But this process has overhead---it involves reloading the metadata, diffing it,
|
||
and rebuilding the schema cache---so we don’t want to do it if it isn’t
|
||
necessary. The user can explicitly disable the check via the
|
||
check_metadata_consistency option, and we also skip it if the current
|
||
transaction is in READ ONLY mode, since the schema can’t be modified in that
|
||
case, anyway.
|
||
|
||
However, even if neither read_only or check_metadata_consistency is passed, lots
|
||
of queries may not modify the schema at all. As a (fairly stupid) heuristic, we
|
||
check if the query contains any keywords for DDL operations, and if not, we skip
|
||
the metadata check as well. -}
|
||
|
||
-- | Fetch metadata of tracked tables/functions and build @'Diff.TableMeta'/@'Diff.FunctionMeta'
|
||
-- to calculate diff later in @'withMetadataCheck'.
|
||
fetchTablesFunctionsMetadata ::
|
||
forall pgKind m.
|
||
( ToMetadataFetchQuery pgKind,
|
||
FetchTableMetadata pgKind,
|
||
FetchFunctionMetadata pgKind,
|
||
BackendMetadata ('Postgres pgKind),
|
||
MonadTx m
|
||
) =>
|
||
TableCache ('Postgres pgKind) ->
|
||
HS.HashSet (TableName ('Postgres pgKind)) ->
|
||
HS.HashSet (FunctionName ('Postgres pgKind)) ->
|
||
m ([Diff.TableMeta ('Postgres pgKind)], [Diff.FunctionMeta ('Postgres pgKind)])
|
||
fetchTablesFunctionsMetadata tableCache tables functions = do
|
||
tableMetaInfos <- fetchTableMetadata tables
|
||
functionMetaInfos <- fetchFunctionMetadata @pgKind functions
|
||
|
||
let functionMetas =
|
||
[ functionMeta
|
||
| function <- HS.toList functions,
|
||
functionMeta <- mkFunctionMetas functionMetaInfos function
|
||
]
|
||
let tableMetas =
|
||
[ Diff.TableMeta table tableMetaInfo computedFieldInfos
|
||
| (table, tableMetaInfo) <- HashMap.toList tableMetaInfos,
|
||
let computedFieldInfos =
|
||
[ computedFieldMeta
|
||
| Just tableInfo <- pure (HashMap.lookup table tableCache),
|
||
computedField <- getComputedFields tableInfo,
|
||
computedFieldMeta <-
|
||
[ Diff.ComputedFieldMeta fieldName functionMeta
|
||
| let fieldName = _cfiName computedField
|
||
function = _cffName $ _cfiFunction computedField,
|
||
functionMeta <- mkFunctionMetas functionMetaInfos function
|
||
]
|
||
]
|
||
]
|
||
|
||
pure (tableMetas, functionMetas)
|
||
where
|
||
mkFunctionMetas ::
|
||
HashMap QualifiedFunction (FunctionOverloads ('Postgres pgKind)) ->
|
||
QualifiedFunction ->
|
||
[Diff.FunctionMeta ('Postgres pgKind)]
|
||
mkFunctionMetas functionMetaInfos function =
|
||
[ Diff.FunctionMeta (rfiOid rawInfo) function (rfiFunctionType rawInfo)
|
||
| -- It would seem like we could feasibly detect function overloads here already,
|
||
-- But that is handled elsewhere.
|
||
Just overloads <- pure (HashMap.lookup function functionMetaInfos),
|
||
rawInfo <- NE.toList $ getFunctionOverloads overloads
|
||
]
|
||
|
||
-- | Used as an escape hatch to run raw SQL against a database.
|
||
runRunSQL ::
|
||
forall (pgKind :: PostgresKind) m.
|
||
( BackendMetadata ('Postgres pgKind),
|
||
ToMetadataFetchQuery pgKind,
|
||
FetchTableMetadata pgKind,
|
||
FetchFunctionMetadata pgKind,
|
||
CacheRWM m,
|
||
MetadataM m,
|
||
MonadBaseControl IO m,
|
||
MonadError QErr m,
|
||
MonadIO m,
|
||
Tracing.MonadTrace m,
|
||
UserInfoM m
|
||
) =>
|
||
SQLGenCtx ->
|
||
RunSQL ->
|
||
m EncJSON
|
||
runRunSQL sqlGen q@RunSQL {..} = do
|
||
sourceConfig <- askSourceConfig @('Postgres pgKind) rSource
|
||
traceCtx <- Tracing.currentContext
|
||
userInfo <- askUserInfo
|
||
let pgExecCtx = _pscExecCtx sourceConfig
|
||
if (isSchemaCacheBuildRequiredRunSQL q)
|
||
then do
|
||
-- see Note [Checking metadata consistency in run_sql]
|
||
withMetadataCheck @pgKind sqlGen rSource rCascade rTxAccessMode $
|
||
withTraceContext traceCtx $
|
||
withUserInfo userInfo $
|
||
execRawSQL rSql
|
||
else do
|
||
runTxWithCtx pgExecCtx (Tx rTxAccessMode Nothing) RunSQLQuery $ execRawSQL rSql
|
||
where
|
||
execRawSQL :: (MonadTx n) => Text -> n EncJSON
|
||
execRawSQL =
|
||
fmap (encJFromJValue @RunSQLRes) . liftTx . PG.multiQE rawSqlErrHandler . PG.fromText
|
||
where
|
||
rawSqlErrHandler txe =
|
||
(err400 PostgresError "query execution failed") {qeInternal = Just $ ExtraInternal $ toJSON txe}
|
||
|
||
-- | @'withMetadataCheck' source cascade txAccess runSQLQuery@ executes @runSQLQuery@ and checks if the schema changed as a
|
||
-- result. If it did, it checks to ensure the changes do not violate any integrity constraints, and
|
||
-- if not, incorporates them into the schema cache.
|
||
-- TODO(antoine): shouldn't this be generalized?
|
||
withMetadataCheck ::
|
||
forall (pgKind :: PostgresKind) a m.
|
||
( BackendMetadata ('Postgres pgKind),
|
||
ToMetadataFetchQuery pgKind,
|
||
FetchTableMetadata pgKind,
|
||
FetchFunctionMetadata pgKind,
|
||
CacheRWM m,
|
||
MetadataM m,
|
||
MonadBaseControl IO m,
|
||
MonadError QErr m,
|
||
MonadIO m
|
||
) =>
|
||
SQLGenCtx ->
|
||
SourceName ->
|
||
Bool ->
|
||
PG.TxAccess ->
|
||
PG.TxET QErr m a ->
|
||
m a
|
||
withMetadataCheck sqlGen source cascade txAccess runSQLQuery = do
|
||
SourceInfo {..} <- askSourceInfo @('Postgres pgKind) source
|
||
|
||
-- Run SQL query and metadata checker in a transaction
|
||
(queryResult, metadataUpdater) <- runTxWithMetadataCheck source _siConfiguration txAccess _siTables _siFunctions cascade runSQLQuery
|
||
|
||
-- Build schema cache with updated metadata
|
||
withNewInconsistentObjsCheck $
|
||
buildSchemaCacheWithInvalidations mempty {ciSources = HS.singleton source} metadataUpdater
|
||
|
||
postRunSQLSchemaCache <- askSchemaCache
|
||
|
||
-- Recreate event triggers in hdb_catalog. Event triggers are dropped before executing @'runSQLQuery'.
|
||
recreateEventTriggers _siConfiguration postRunSQLSchemaCache
|
||
|
||
pure queryResult
|
||
where
|
||
recreateEventTriggers :: PGSourceConfig -> SchemaCache -> m ()
|
||
recreateEventTriggers sourceConfig schemaCache = do
|
||
let tables = fromMaybe mempty $ unsafeTableCache @('Postgres pgKind) source $ scSources schemaCache
|
||
liftEitherM $
|
||
runPgSourceWriteTx sourceConfig RunSQLQuery $
|
||
forM_ (HashMap.elems tables) $ \(TableInfo coreInfo _ eventTriggers _) -> do
|
||
let table = _tciName coreInfo
|
||
columns = getCols $ _tciFieldInfoMap coreInfo
|
||
forM_ (HashMap.toList eventTriggers) $ \(triggerName, EventTriggerInfo {etiOpsDef, etiTriggerOnReplication}) -> do
|
||
flip runReaderT sqlGen $
|
||
mkAllTriggersQ triggerName table etiTriggerOnReplication columns etiOpsDef
|
||
|
||
-- | @'runTxWithMetadataCheck source sourceConfig txAccess tableCache functionCache cascadeDependencies tx' checks for
|
||
-- changes in GraphQL Engine metadata when a @'tx' is executed on the database alters Postgres
|
||
-- schema of tables and functions. If any indirect dependencies (Eg. remote table dependence of a relationship) are
|
||
-- found and @'cascadeDependencies' is False, then an exception is raised.
|
||
runTxWithMetadataCheck ::
|
||
forall m a (pgKind :: PostgresKind).
|
||
( BackendMetadata ('Postgres pgKind),
|
||
ToMetadataFetchQuery pgKind,
|
||
FetchTableMetadata pgKind,
|
||
FetchFunctionMetadata pgKind,
|
||
CacheRWM m,
|
||
MonadIO m,
|
||
MonadBaseControl IO m,
|
||
MonadError QErr m
|
||
) =>
|
||
SourceName ->
|
||
SourceConfig ('Postgres pgKind) ->
|
||
PG.TxAccess ->
|
||
TableCache ('Postgres pgKind) ->
|
||
FunctionCache ('Postgres pgKind) ->
|
||
Bool ->
|
||
PG.TxET QErr m a ->
|
||
m (a, MetadataModifier)
|
||
runTxWithMetadataCheck source sourceConfig txAccess tableCache functionCache cascadeDependencies tx =
|
||
liftEitherM $
|
||
runExceptT $
|
||
_pecRunTx (_pscExecCtx sourceConfig) (PGExecCtxInfo (Tx txAccess Nothing) RunSQLQuery) $ do
|
||
-- Running in a transaction helps to rollback the @'tx' execution in case of any exceptions
|
||
|
||
-- Before running the @'tx', fetch metadata of existing tables and functions from Postgres.
|
||
let tableNames = HashMap.keysSet tableCache
|
||
computedFieldFunctions = mconcat $ map getComputedFieldFunctions (HashMap.elems tableCache)
|
||
functionNames = HashMap.keysSet functionCache <> computedFieldFunctions
|
||
(preTxTablesMeta, preTxFunctionsMeta) <- fetchTablesFunctionsMetadata tableCache tableNames functionNames
|
||
|
||
-- Since the @'tx' may alter table/function names we use the OIDs of underlying tables
|
||
-- (sourced from 'pg_class' for tables and 'pg_proc' for functions), which remain unchanged in the
|
||
-- case if a table/function is renamed.
|
||
let tableOids = HS.fromList $ map (_ptmiOid . Diff.tmInfo) preTxTablesMeta
|
||
functionOids = HS.fromList $ map Diff.fmOid preTxFunctionsMeta
|
||
|
||
-- Run the transaction
|
||
txResult <- tx
|
||
|
||
(postTxTablesMeta, postTxFunctionMeta) <-
|
||
uncurry (fetchTablesFunctionsMetadata tableCache)
|
||
-- Fetch names of tables and functions using OIDs which also contains renamed items
|
||
=<< fetchTablesFunctionsFromOids tableOids functionOids
|
||
|
||
-- Calculate the tables diff (dropped & altered tables)
|
||
let tablesDiff = Diff.getTablesDiff preTxTablesMeta postTxTablesMeta
|
||
-- Calculate the functions diff. For calculating diff for functions, only consider
|
||
-- query/mutation functions and exclude functions underpinning computed fields.
|
||
-- Computed field functions are being processed under each table diff.
|
||
-- See @'getTablesDiff' and @'Diff.processTablesDiff'
|
||
excludeComputedFieldFunctions = filter ((`HashMap.member` functionCache) . Diff.fmFunction)
|
||
functionsDiff =
|
||
Diff.getFunctionsDiff
|
||
(excludeComputedFieldFunctions preTxFunctionsMeta)
|
||
(excludeComputedFieldFunctions postTxFunctionMeta)
|
||
|
||
dontAllowFunctionOverloading $
|
||
Diff.getOverloadedFunctions
|
||
(HashMap.keys functionCache)
|
||
(excludeComputedFieldFunctions postTxFunctionMeta)
|
||
|
||
-- Update metadata with schema change caused by @'tx'
|
||
metadataUpdater <- execWriterT do
|
||
-- Collect indirect dependencies of altered tables
|
||
tableIndirectDeps <- Diff.getIndirectDependenciesFromTableDiff source tablesDiff
|
||
|
||
-- If table indirect dependencies exist and cascading is not enabled then report an exception
|
||
unless (null tableIndirectDeps || cascadeDependencies) $ reportDependentObjectsExist tableIndirectDeps
|
||
|
||
-- Purge all the table dependents
|
||
traverse_ purgeSourceAndSchemaDependencies tableIndirectDeps
|
||
|
||
-- Collect function names from purged table dependencies
|
||
let purgedFunctions = collectFunctionsInDeps tableIndirectDeps
|
||
Diff.FunctionsDiff droppedFunctions alteredFunctions = functionsDiff
|
||
|
||
-- Drop functions in metadata. Exclude functions that were already dropped as part of table indirect dependencies
|
||
purgeFunctionsFromMetadata $ droppedFunctions \\ purgedFunctions
|
||
|
||
-- If any function type is altered to VOLATILE then raise an exception
|
||
dontAllowFunctionAlteredVolatile alteredFunctions
|
||
|
||
-- Propagate table changes to metadata
|
||
Diff.processTablesDiff source tableCache tablesDiff
|
||
|
||
pure (txResult, metadataUpdater)
|
||
where
|
||
dontAllowFunctionOverloading ::
|
||
MonadError QErr n =>
|
||
[FunctionName ('Postgres pgKind)] ->
|
||
n ()
|
||
dontAllowFunctionOverloading overloadedFunctions =
|
||
unless (null overloadedFunctions) $
|
||
throw400 NotSupported $
|
||
"the following tracked function(s) cannot be overloaded: "
|
||
<> commaSeparated overloadedFunctions
|
||
|
||
dontAllowFunctionAlteredVolatile ::
|
||
MonadError QErr n =>
|
||
[(FunctionName ('Postgres pgKind), FunctionVolatility)] ->
|
||
n ()
|
||
dontAllowFunctionAlteredVolatile alteredFunctions =
|
||
forM_ alteredFunctions $ \(qf, newTy) -> do
|
||
when (newTy == FTVOLATILE) $
|
||
throw400 NotSupported $
|
||
"type of function " <> qf <<> " is altered to \"VOLATILE\" which is not supported now"
|
||
|
||
purgeFunctionsFromMetadata ::
|
||
Monad n =>
|
||
[FunctionName ('Postgres pgKind)] ->
|
||
WriterT MetadataModifier n ()
|
||
purgeFunctionsFromMetadata functions =
|
||
for_ functions $ tell . dropFunctionInMetadata @('Postgres pgKind) source
|
||
|
||
collectFunctionsInDeps :: [SchemaObjId] -> [FunctionName ('Postgres pgKind)]
|
||
collectFunctionsInDeps deps =
|
||
flip mapMaybe deps \case
|
||
SOSourceObj _ objectID
|
||
| Just (SOIFunction qf) <- AB.unpackAnyBackend @('Postgres pgKind) objectID ->
|
||
Just qf
|
||
_ -> Nothing
|
||
|
||
-- | Fetch list of tables and functions with provided oids
|
||
fetchTablesFunctionsFromOids ::
|
||
(MonadIO m) =>
|
||
HashSet OID ->
|
||
HashSet OID ->
|
||
PG.TxET
|
||
QErr
|
||
m
|
||
( HS.HashSet (TableName ('Postgres pgKind)),
|
||
HS.HashSet (FunctionName ('Postgres pgKind))
|
||
)
|
||
fetchTablesFunctionsFromOids tableOids functionOids =
|
||
((PG.getViaJSON *** PG.getViaJSON) . PG.getRow)
|
||
<$> PG.withQE
|
||
defaultTxErrorHandler
|
||
[PG.sql|
|
||
SELECT
|
||
COALESCE(
|
||
( SELECT
|
||
json_agg(
|
||
row_to_json(
|
||
(
|
||
SELECT e
|
||
FROM ( SELECT "table".relname AS "name",
|
||
"schema".nspname AS "schema"
|
||
) AS e
|
||
)
|
||
)
|
||
) AS "item"
|
||
FROM jsonb_to_recordset($1::jsonb) AS oid_table("oid" int)
|
||
JOIN pg_catalog.pg_class "table" ON ("table".oid = "oid_table".oid)
|
||
JOIN pg_catalog.pg_namespace "schema" ON ("schema".oid = "table".relnamespace)
|
||
),
|
||
'[]'
|
||
) AS "tables",
|
||
|
||
COALESCE(
|
||
( SELECT
|
||
json_agg(
|
||
row_to_json(
|
||
(
|
||
SELECT e
|
||
FROM ( SELECT "function".proname AS "name",
|
||
"schema".nspname AS "schema"
|
||
) AS e
|
||
)
|
||
)
|
||
) AS "item"
|
||
FROM jsonb_to_recordset($2::jsonb) AS oid_table("oid" int)
|
||
JOIN pg_catalog.pg_proc "function" ON ("function".oid = "oid_table".oid)
|
||
JOIN pg_catalog.pg_namespace "schema" ON ("schema".oid = "function".pronamespace)
|
||
),
|
||
'[]'
|
||
) AS "functions"
|
||
|]
|
||
(PG.ViaJSON $ map mkOidObject $ HS.toList tableOids, PG.ViaJSON $ map mkOidObject $ HS.toList $ functionOids)
|
||
True
|
||
where
|
||
mkOidObject oid = object ["oid" .= oid]
|
||
|
||
------ helpers ------------
|
||
|
||
getComputedFields :: TableInfo ('Postgres pgKind) -> [ComputedFieldInfo ('Postgres pgKind)]
|
||
getComputedFields = getComputedFieldInfos . _tciFieldInfoMap . _tiCoreInfo
|
||
|
||
getComputedFieldFunctions :: TableInfo ('Postgres pgKind) -> HashSet (FunctionName ('Postgres pgKind))
|
||
getComputedFieldFunctions = HS.fromList . map (_cffName . _cfiFunction) . getComputedFields
|