chore: use helper for feature flag from version

Author: avallete

src/index.ts

@@ -29,7 +29,6 @@ export type {
   PostgrestSingleResponse,
   PostgrestMaybeSingleResponse,
   ClientServerOptions,
-  PostgRESTVersion,
 } from './types'
 // https://github.com/supabase/postgrest-js/issues/551
 // To be replaced with a helper type that only uses public types

src/select-query-parser/result.ts

@@ -21,6 +21,9 @@ import {
   SelectQueryError,
 } from './utils'
 
+export type SpreadOnManyEnabled<postgrestVersion extends number | undefined> =
+  postgrestVersion extends 13 ? true : false
+
 /**
  * Main entry point for constructing the result type of a PostgREST query.
  *
@@ -445,7 +448,7 @@ type ProcessSpreadNode<
   ? Result extends SelectQueryError<infer E>
     ? SelectQueryError<E>
     : ExtractFirstProperty<Result> extends unknown[]
-    ? ClientOptions['postgrestVersion'] extends 13 // Spread over an many-to-many relationship, turn all the result fields into correlated arrays
+    ? SpreadOnManyEnabled<ClientOptions['postgrestVersion']> extends true // Spread over an many-to-many relationship, turn all the result fields into correlated arrays
       ? ProcessManyToManySpreadNodeResult<Result>
       : {
           [K in Spread['target']['name']]: SelectQueryError<`"${RelationName}" and "${Spread['target']['name']}" do not form a many-to-one or one-to-one relationship spread not possible`>

src/types.ts

@@ -71,9 +71,9 @@ export type GenericSchema = {
   Functions: Record<string, GenericFunction>
 }
 
-export type PostgRESTVersion = 12 | 13
+type PostgRESTMajorVersion = number
 export type ClientServerOptions = {
-  postgrestVersion?: PostgRESTVersion
+  postgrestVersion?: PostgRESTMajorVersion
 }
 
 export type DatabaseWithOptions<Database, Options extends ClientServerOptions> = {