diff --git a/samples/orm/zenstack/input.ts b/samples/orm/zenstack/input.ts
index fcd198d49..cfc174c06 100644
--- a/samples/orm/zenstack/input.ts
+++ b/samples/orm/zenstack/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type ProfileFindManyArgs = $FindManyArgs<$Schema, "Profile">;
 export type ProfileFindUniqueArgs = $FindUniqueArgs<$Schema, "Profile">;
 export type ProfileFindFirstArgs = $FindFirstArgs<$Schema, "Profile">;
+export type ProfileExistsArgs = $ExistsArgs<$Schema, "Profile">;
 export type ProfileCreateArgs = $CreateArgs<$Schema, "Profile">;
 export type ProfileCreateManyArgs = $CreateManyArgs<$Schema, "Profile">;
 export type ProfileCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Profile">;
@@ -51,6 +53,7 @@ export type ProfileGetPayload<Args extends $SelectIncludeOmit<$Schema, "Profile"
 export type PostFindManyArgs = $FindManyArgs<$Schema, "Post">;
 export type PostFindUniqueArgs = $FindUniqueArgs<$Schema, "Post">;
 export type PostFindFirstArgs = $FindFirstArgs<$Schema, "Post">;
+export type PostExistsArgs = $ExistsArgs<$Schema, "Post">;
 export type PostCreateArgs = $CreateArgs<$Schema, "Post">;
 export type PostCreateManyArgs = $CreateManyArgs<$Schema, "Post">;
 export type PostCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Post">;
diff --git a/tests/e2e/orm/schemas/delegate/input.ts b/tests/e2e/orm/schemas/delegate/input.ts
index 331448486..23eb5c08b 100644
--- a/tests/e2e/orm/schemas/delegate/input.ts
+++ b/tests/e2e/orm/schemas/delegate/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type CommentFindManyArgs = $FindManyArgs<$Schema, "Comment">;
 export type CommentFindUniqueArgs = $FindUniqueArgs<$Schema, "Comment">;
 export type CommentFindFirstArgs = $FindFirstArgs<$Schema, "Comment">;
+export type CommentExistsArgs = $ExistsArgs<$Schema, "Comment">;
 export type CommentCreateArgs = $CreateArgs<$Schema, "Comment">;
 export type CommentCreateManyArgs = $CreateManyArgs<$Schema, "Comment">;
 export type CommentCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Comment">;
@@ -51,6 +53,7 @@ export type CommentGetPayload<Args extends $SelectIncludeOmit<$Schema, "Comment"
 export type AssetFindManyArgs = $FindManyArgs<$Schema, "Asset">;
 export type AssetFindUniqueArgs = $FindUniqueArgs<$Schema, "Asset">;
 export type AssetFindFirstArgs = $FindFirstArgs<$Schema, "Asset">;
+export type AssetExistsArgs = $ExistsArgs<$Schema, "Asset">;
 export type AssetCreateArgs = $CreateArgs<$Schema, "Asset">;
 export type AssetCreateManyArgs = $CreateManyArgs<$Schema, "Asset">;
 export type AssetCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Asset">;
@@ -71,6 +74,7 @@ export type AssetGetPayload<Args extends $SelectIncludeOmit<$Schema, "Asset", tr
 export type VideoFindManyArgs = $FindManyArgs<$Schema, "Video">;
 export type VideoFindUniqueArgs = $FindUniqueArgs<$Schema, "Video">;
 export type VideoFindFirstArgs = $FindFirstArgs<$Schema, "Video">;
+export type VideoExistsArgs = $ExistsArgs<$Schema, "Video">;
 export type VideoCreateArgs = $CreateArgs<$Schema, "Video">;
 export type VideoCreateManyArgs = $CreateManyArgs<$Schema, "Video">;
 export type VideoCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Video">;
@@ -91,6 +95,7 @@ export type VideoGetPayload<Args extends $SelectIncludeOmit<$Schema, "Video", tr
 export type RatedVideoFindManyArgs = $FindManyArgs<$Schema, "RatedVideo">;
 export type RatedVideoFindUniqueArgs = $FindUniqueArgs<$Schema, "RatedVideo">;
 export type RatedVideoFindFirstArgs = $FindFirstArgs<$Schema, "RatedVideo">;
+export type RatedVideoExistsArgs = $ExistsArgs<$Schema, "RatedVideo">;
 export type RatedVideoCreateArgs = $CreateArgs<$Schema, "RatedVideo">;
 export type RatedVideoCreateManyArgs = $CreateManyArgs<$Schema, "RatedVideo">;
 export type RatedVideoCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "RatedVideo">;
@@ -111,6 +116,7 @@ export type RatedVideoGetPayload<Args extends $SelectIncludeOmit<$Schema, "Rated
 export type ImageFindManyArgs = $FindManyArgs<$Schema, "Image">;
 export type ImageFindUniqueArgs = $FindUniqueArgs<$Schema, "Image">;
 export type ImageFindFirstArgs = $FindFirstArgs<$Schema, "Image">;
+export type ImageExistsArgs = $ExistsArgs<$Schema, "Image">;
 export type ImageCreateArgs = $CreateArgs<$Schema, "Image">;
 export type ImageCreateManyArgs = $CreateManyArgs<$Schema, "Image">;
 export type ImageCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Image">;
@@ -131,6 +137,7 @@ export type ImageGetPayload<Args extends $SelectIncludeOmit<$Schema, "Image", tr
 export type GalleryFindManyArgs = $FindManyArgs<$Schema, "Gallery">;
 export type GalleryFindUniqueArgs = $FindUniqueArgs<$Schema, "Gallery">;
 export type GalleryFindFirstArgs = $FindFirstArgs<$Schema, "Gallery">;
+export type GalleryExistsArgs = $ExistsArgs<$Schema, "Gallery">;
 export type GalleryCreateArgs = $CreateArgs<$Schema, "Gallery">;
 export type GalleryCreateManyArgs = $CreateManyArgs<$Schema, "Gallery">;
 export type GalleryCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Gallery">;
diff --git a/tests/e2e/orm/schemas/json/input.ts b/tests/e2e/orm/schemas/json/input.ts
index 3c7c14554..74cd690b9 100644
--- a/tests/e2e/orm/schemas/json/input.ts
+++ b/tests/e2e/orm/schemas/json/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type FooFindManyArgs = $FindManyArgs<$Schema, "Foo">;
 export type FooFindUniqueArgs = $FindUniqueArgs<$Schema, "Foo">;
 export type FooFindFirstArgs = $FindFirstArgs<$Schema, "Foo">;
+export type FooExistsArgs = $ExistsArgs<$Schema, "Foo">;
 export type FooCreateArgs = $CreateArgs<$Schema, "Foo">;
 export type FooCreateManyArgs = $CreateManyArgs<$Schema, "Foo">;
 export type FooCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Foo">;
diff --git a/tests/e2e/orm/schemas/name-mapping/input.ts b/tests/e2e/orm/schemas/name-mapping/input.ts
index 3799802f9..c6b620ee6 100644
--- a/tests/e2e/orm/schemas/name-mapping/input.ts
+++ b/tests/e2e/orm/schemas/name-mapping/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type PostFindManyArgs = $FindManyArgs<$Schema, "Post">;
 export type PostFindUniqueArgs = $FindUniqueArgs<$Schema, "Post">;
 export type PostFindFirstArgs = $FindFirstArgs<$Schema, "Post">;
+export type PostExistsArgs = $ExistsArgs<$Schema, "Post">;
 export type PostCreateArgs = $CreateArgs<$Schema, "Post">;
 export type PostCreateManyArgs = $CreateManyArgs<$Schema, "Post">;
 export type PostCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Post">;
diff --git a/tests/e2e/orm/schemas/omit/input.ts b/tests/e2e/orm/schemas/omit/input.ts
index bd73757d3..47ada0edd 100644
--- a/tests/e2e/orm/schemas/omit/input.ts
+++ b/tests/e2e/orm/schemas/omit/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type PostFindManyArgs = $FindManyArgs<$Schema, "Post">;
 export type PostFindUniqueArgs = $FindUniqueArgs<$Schema, "Post">;
 export type PostFindFirstArgs = $FindFirstArgs<$Schema, "Post">;
+export type PostExistsArgs = $ExistsArgs<$Schema, "Post">;
 export type PostCreateArgs = $CreateArgs<$Schema, "Post">;
 export type PostCreateManyArgs = $CreateManyArgs<$Schema, "Post">;
 export type PostCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Post">;
@@ -51,6 +53,7 @@ export type PostGetPayload<Args extends $SelectIncludeOmit<$Schema, "Post", true
 export type BaseFindManyArgs = $FindManyArgs<$Schema, "Base">;
 export type BaseFindUniqueArgs = $FindUniqueArgs<$Schema, "Base">;
 export type BaseFindFirstArgs = $FindFirstArgs<$Schema, "Base">;
+export type BaseExistsArgs = $ExistsArgs<$Schema, "Base">;
 export type BaseCreateArgs = $CreateArgs<$Schema, "Base">;
 export type BaseCreateManyArgs = $CreateManyArgs<$Schema, "Base">;
 export type BaseCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Base">;
@@ -71,6 +74,7 @@ export type BaseGetPayload<Args extends $SelectIncludeOmit<$Schema, "Base", true
 export type SubFindManyArgs = $FindManyArgs<$Schema, "Sub">;
 export type SubFindUniqueArgs = $FindUniqueArgs<$Schema, "Sub">;
 export type SubFindFirstArgs = $FindFirstArgs<$Schema, "Sub">;
+export type SubExistsArgs = $ExistsArgs<$Schema, "Sub">;
 export type SubCreateArgs = $CreateArgs<$Schema, "Sub">;
 export type SubCreateManyArgs = $CreateManyArgs<$Schema, "Sub">;
 export type SubCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Sub">;
diff --git a/tests/e2e/orm/schemas/petstore/input.ts b/tests/e2e/orm/schemas/petstore/input.ts
index 7beee9d5d..37afa4933 100644
--- a/tests/e2e/orm/schemas/petstore/input.ts
+++ b/tests/e2e/orm/schemas/petstore/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type PetFindManyArgs = $FindManyArgs<$Schema, "Pet">;
 export type PetFindUniqueArgs = $FindUniqueArgs<$Schema, "Pet">;
 export type PetFindFirstArgs = $FindFirstArgs<$Schema, "Pet">;
+export type PetExistsArgs = $ExistsArgs<$Schema, "Pet">;
 export type PetCreateArgs = $CreateArgs<$Schema, "Pet">;
 export type PetCreateManyArgs = $CreateManyArgs<$Schema, "Pet">;
 export type PetCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Pet">;
@@ -51,6 +53,7 @@ export type PetGetPayload<Args extends $SelectIncludeOmit<$Schema, "Pet", true>,
 export type OrderFindManyArgs = $FindManyArgs<$Schema, "Order">;
 export type OrderFindUniqueArgs = $FindUniqueArgs<$Schema, "Order">;
 export type OrderFindFirstArgs = $FindFirstArgs<$Schema, "Order">;
+export type OrderExistsArgs = $ExistsArgs<$Schema, "Order">;
 export type OrderCreateArgs = $CreateArgs<$Schema, "Order">;
 export type OrderCreateManyArgs = $CreateManyArgs<$Schema, "Order">;
 export type OrderCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Order">;
diff --git a/tests/e2e/orm/schemas/procedures/input.ts b/tests/e2e/orm/schemas/procedures/input.ts
index 88a751d1c..22bdbfa73 100644
--- a/tests/e2e/orm/schemas/procedures/input.ts
+++ b/tests/e2e/orm/schemas/procedures/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
diff --git a/tests/e2e/orm/schemas/todo/input.ts b/tests/e2e/orm/schemas/todo/input.ts
index 66b1696a9..73614082d 100644
--- a/tests/e2e/orm/schemas/todo/input.ts
+++ b/tests/e2e/orm/schemas/todo/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type SpaceFindManyArgs = $FindManyArgs<$Schema, "Space">;
 export type SpaceFindUniqueArgs = $FindUniqueArgs<$Schema, "Space">;
 export type SpaceFindFirstArgs = $FindFirstArgs<$Schema, "Space">;
+export type SpaceExistsArgs = $ExistsArgs<$Schema, "Space">;
 export type SpaceCreateArgs = $CreateArgs<$Schema, "Space">;
 export type SpaceCreateManyArgs = $CreateManyArgs<$Schema, "Space">;
 export type SpaceCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Space">;
@@ -31,6 +32,7 @@ export type SpaceGetPayload<Args extends $SelectIncludeOmit<$Schema, "Space", tr
 export type SpaceUserFindManyArgs = $FindManyArgs<$Schema, "SpaceUser">;
 export type SpaceUserFindUniqueArgs = $FindUniqueArgs<$Schema, "SpaceUser">;
 export type SpaceUserFindFirstArgs = $FindFirstArgs<$Schema, "SpaceUser">;
+export type SpaceUserExistsArgs = $ExistsArgs<$Schema, "SpaceUser">;
 export type SpaceUserCreateArgs = $CreateArgs<$Schema, "SpaceUser">;
 export type SpaceUserCreateManyArgs = $CreateManyArgs<$Schema, "SpaceUser">;
 export type SpaceUserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "SpaceUser">;
@@ -51,6 +53,7 @@ export type SpaceUserGetPayload<Args extends $SelectIncludeOmit<$Schema, "SpaceU
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -71,6 +74,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type ListFindManyArgs = $FindManyArgs<$Schema, "List">;
 export type ListFindUniqueArgs = $FindUniqueArgs<$Schema, "List">;
 export type ListFindFirstArgs = $FindFirstArgs<$Schema, "List">;
+export type ListExistsArgs = $ExistsArgs<$Schema, "List">;
 export type ListCreateArgs = $CreateArgs<$Schema, "List">;
 export type ListCreateManyArgs = $CreateManyArgs<$Schema, "List">;
 export type ListCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "List">;
@@ -91,6 +95,7 @@ export type ListGetPayload<Args extends $SelectIncludeOmit<$Schema, "List", true
 export type TodoFindManyArgs = $FindManyArgs<$Schema, "Todo">;
 export type TodoFindUniqueArgs = $FindUniqueArgs<$Schema, "Todo">;
 export type TodoFindFirstArgs = $FindFirstArgs<$Schema, "Todo">;
+export type TodoExistsArgs = $ExistsArgs<$Schema, "Todo">;
 export type TodoCreateArgs = $CreateArgs<$Schema, "Todo">;
 export type TodoCreateManyArgs = $CreateManyArgs<$Schema, "Todo">;
 export type TodoCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Todo">;
diff --git a/tests/e2e/orm/schemas/typed-json/input.ts b/tests/e2e/orm/schemas/typed-json/input.ts
index 88a751d1c..22bdbfa73 100644
--- a/tests/e2e/orm/schemas/typed-json/input.ts
+++ b/tests/e2e/orm/schemas/typed-json/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
diff --git a/tests/e2e/orm/schemas/typing/input.ts b/tests/e2e/orm/schemas/typing/input.ts
index 5f893115f..1fa900dc1 100644
--- a/tests/e2e/orm/schemas/typing/input.ts
+++ b/tests/e2e/orm/schemas/typing/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type PostFindManyArgs = $FindManyArgs<$Schema, "Post">;
 export type PostFindUniqueArgs = $FindUniqueArgs<$Schema, "Post">;
 export type PostFindFirstArgs = $FindFirstArgs<$Schema, "Post">;
+export type PostExistsArgs = $ExistsArgs<$Schema, "Post">;
 export type PostCreateArgs = $CreateArgs<$Schema, "Post">;
 export type PostCreateManyArgs = $CreateManyArgs<$Schema, "Post">;
 export type PostCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Post">;
@@ -51,6 +53,7 @@ export type PostGetPayload<Args extends $SelectIncludeOmit<$Schema, "Post", true
 export type ProfileFindManyArgs = $FindManyArgs<$Schema, "Profile">;
 export type ProfileFindUniqueArgs = $FindUniqueArgs<$Schema, "Profile">;
 export type ProfileFindFirstArgs = $FindFirstArgs<$Schema, "Profile">;
+export type ProfileExistsArgs = $ExistsArgs<$Schema, "Profile">;
 export type ProfileCreateArgs = $CreateArgs<$Schema, "Profile">;
 export type ProfileCreateManyArgs = $CreateManyArgs<$Schema, "Profile">;
 export type ProfileCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Profile">;
@@ -71,6 +74,7 @@ export type ProfileGetPayload<Args extends $SelectIncludeOmit<$Schema, "Profile"
 export type TagFindManyArgs = $FindManyArgs<$Schema, "Tag">;
 export type TagFindUniqueArgs = $FindUniqueArgs<$Schema, "Tag">;
 export type TagFindFirstArgs = $FindFirstArgs<$Schema, "Tag">;
+export type TagExistsArgs = $ExistsArgs<$Schema, "Tag">;
 export type TagCreateArgs = $CreateArgs<$Schema, "Tag">;
 export type TagCreateManyArgs = $CreateManyArgs<$Schema, "Tag">;
 export type TagCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Tag">;
@@ -91,6 +95,7 @@ export type TagGetPayload<Args extends $SelectIncludeOmit<$Schema, "Tag", true>,
 export type RegionFindManyArgs = $FindManyArgs<$Schema, "Region">;
 export type RegionFindUniqueArgs = $FindUniqueArgs<$Schema, "Region">;
 export type RegionFindFirstArgs = $FindFirstArgs<$Schema, "Region">;
+export type RegionExistsArgs = $ExistsArgs<$Schema, "Region">;
 export type RegionCreateArgs = $CreateArgs<$Schema, "Region">;
 export type RegionCreateManyArgs = $CreateManyArgs<$Schema, "Region">;
 export type RegionCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Region">;
@@ -111,6 +116,7 @@ export type RegionGetPayload<Args extends $SelectIncludeOmit<$Schema, "Region",
 export type MetaFindManyArgs = $FindManyArgs<$Schema, "Meta">;
 export type MetaFindUniqueArgs = $FindUniqueArgs<$Schema, "Meta">;
 export type MetaFindFirstArgs = $FindFirstArgs<$Schema, "Meta">;
+export type MetaExistsArgs = $ExistsArgs<$Schema, "Meta">;
 export type MetaCreateArgs = $CreateArgs<$Schema, "Meta">;
 export type MetaCreateManyArgs = $CreateManyArgs<$Schema, "Meta">;
 export type MetaCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Meta">;
diff --git a/tests/regression/test/issue-204/input.ts b/tests/regression/test/issue-204/input.ts
index 3c7c14554..74cd690b9 100644
--- a/tests/regression/test/issue-204/input.ts
+++ b/tests/regression/test/issue-204/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type FooFindManyArgs = $FindManyArgs<$Schema, "Foo">;
 export type FooFindUniqueArgs = $FindUniqueArgs<$Schema, "Foo">;
 export type FooFindFirstArgs = $FindFirstArgs<$Schema, "Foo">;
+export type FooExistsArgs = $ExistsArgs<$Schema, "Foo">;
 export type FooCreateArgs = $CreateArgs<$Schema, "Foo">;
 export type FooCreateManyArgs = $CreateManyArgs<$Schema, "Foo">;
 export type FooCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Foo">;
diff --git a/tests/regression/test/issue-422/input.ts b/tests/regression/test/issue-422/input.ts
index b2d63acdb..2efb5ebe3 100644
--- a/tests/regression/test/issue-422/input.ts
+++ b/tests/regression/test/issue-422/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type SessionFindManyArgs = $FindManyArgs<$Schema, "Session">;
 export type SessionFindUniqueArgs = $FindUniqueArgs<$Schema, "Session">;
 export type SessionFindFirstArgs = $FindFirstArgs<$Schema, "Session">;
+export type SessionExistsArgs = $ExistsArgs<$Schema, "Session">;
 export type SessionCreateArgs = $CreateArgs<$Schema, "Session">;
 export type SessionCreateManyArgs = $CreateManyArgs<$Schema, "Session">;
 export type SessionCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Session">;
@@ -31,6 +32,7 @@ export type SessionGetPayload<Args extends $SelectIncludeOmit<$Schema, "Session"
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -51,6 +53,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type ProfileFindManyArgs = $FindManyArgs<$Schema, "Profile">;
 export type ProfileFindUniqueArgs = $FindUniqueArgs<$Schema, "Profile">;
 export type ProfileFindFirstArgs = $FindFirstArgs<$Schema, "Profile">;
+export type ProfileExistsArgs = $ExistsArgs<$Schema, "Profile">;
 export type ProfileCreateArgs = $CreateArgs<$Schema, "Profile">;
 export type ProfileCreateManyArgs = $CreateManyArgs<$Schema, "Profile">;
 export type ProfileCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Profile">;
diff --git a/tests/regression/test/issue-503/input.ts b/tests/regression/test/issue-503/input.ts
index e1e5bb0da..2de93d48a 100644
--- a/tests/regression/test/issue-503/input.ts
+++ b/tests/regression/test/issue-503/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type InternalChatFindManyArgs = $FindManyArgs<$Schema, "InternalChat">;
 export type InternalChatFindUniqueArgs = $FindUniqueArgs<$Schema, "InternalChat">;
 export type InternalChatFindFirstArgs = $FindFirstArgs<$Schema, "InternalChat">;
+export type InternalChatExistsArgs = $ExistsArgs<$Schema, "InternalChat">;
 export type InternalChatCreateArgs = $CreateArgs<$Schema, "InternalChat">;
 export type InternalChatCreateManyArgs = $CreateManyArgs<$Schema, "InternalChat">;
 export type InternalChatCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "InternalChat">;
@@ -31,6 +32,7 @@ export type InternalChatGetPayload<Args extends $SelectIncludeOmit<$Schema, "Int
 export type MessageFindManyArgs = $FindManyArgs<$Schema, "Message">;
 export type MessageFindUniqueArgs = $FindUniqueArgs<$Schema, "Message">;
 export type MessageFindFirstArgs = $FindFirstArgs<$Schema, "Message">;
+export type MessageExistsArgs = $ExistsArgs<$Schema, "Message">;
 export type MessageCreateArgs = $CreateArgs<$Schema, "Message">;
 export type MessageCreateManyArgs = $CreateManyArgs<$Schema, "Message">;
 export type MessageCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Message">;
@@ -51,6 +53,7 @@ export type MessageGetPayload<Args extends $SelectIncludeOmit<$Schema, "Message"
 export type MediaFindManyArgs = $FindManyArgs<$Schema, "Media">;
 export type MediaFindUniqueArgs = $FindUniqueArgs<$Schema, "Media">;
 export type MediaFindFirstArgs = $FindFirstArgs<$Schema, "Media">;
+export type MediaExistsArgs = $ExistsArgs<$Schema, "Media">;
 export type MediaCreateArgs = $CreateArgs<$Schema, "Media">;
 export type MediaCreateManyArgs = $CreateManyArgs<$Schema, "Media">;
 export type MediaCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Media">;
diff --git a/tests/runtimes/bun/schemas/input.ts b/tests/runtimes/bun/schemas/input.ts
index 3799802f9..c6b620ee6 100644
--- a/tests/runtimes/bun/schemas/input.ts
+++ b/tests/runtimes/bun/schemas/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type PostFindManyArgs = $FindManyArgs<$Schema, "Post">;
 export type PostFindUniqueArgs = $FindUniqueArgs<$Schema, "Post">;
 export type PostFindFirstArgs = $FindFirstArgs<$Schema, "Post">;
+export type PostExistsArgs = $ExistsArgs<$Schema, "Post">;
 export type PostCreateArgs = $CreateArgs<$Schema, "Post">;
 export type PostCreateManyArgs = $CreateManyArgs<$Schema, "Post">;
 export type PostCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Post">;
diff --git a/tests/runtimes/edge-runtime/schemas/input.ts b/tests/runtimes/edge-runtime/schemas/input.ts
index 3799802f9..c6b620ee6 100644
--- a/tests/runtimes/edge-runtime/schemas/input.ts
+++ b/tests/runtimes/edge-runtime/schemas/input.ts
@@ -6,11 +6,12 @@
 /* eslint-disable */
 
 import { type SchemaType as $Schema } from "./schema";
-import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
+import type { FindManyArgs as $FindManyArgs, FindUniqueArgs as $FindUniqueArgs, FindFirstArgs as $FindFirstArgs, ExistsArgs as $ExistsArgs, CreateArgs as $CreateArgs, CreateManyArgs as $CreateManyArgs, CreateManyAndReturnArgs as $CreateManyAndReturnArgs, UpdateArgs as $UpdateArgs, UpdateManyArgs as $UpdateManyArgs, UpdateManyAndReturnArgs as $UpdateManyAndReturnArgs, UpsertArgs as $UpsertArgs, DeleteArgs as $DeleteArgs, DeleteManyArgs as $DeleteManyArgs, CountArgs as $CountArgs, AggregateArgs as $AggregateArgs, GroupByArgs as $GroupByArgs, WhereInput as $WhereInput, SelectInput as $SelectInput, IncludeInput as $IncludeInput, OmitInput as $OmitInput, QueryOptions as $QueryOptions } from "@zenstackhq/orm";
 import type { SimplifiedPlainResult as $Result, SelectIncludeOmit as $SelectIncludeOmit } from "@zenstackhq/orm";
 export type UserFindManyArgs = $FindManyArgs<$Schema, "User">;
 export type UserFindUniqueArgs = $FindUniqueArgs<$Schema, "User">;
 export type UserFindFirstArgs = $FindFirstArgs<$Schema, "User">;
+export type UserExistsArgs = $ExistsArgs<$Schema, "User">;
 export type UserCreateArgs = $CreateArgs<$Schema, "User">;
 export type UserCreateManyArgs = $CreateManyArgs<$Schema, "User">;
 export type UserCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "User">;
@@ -31,6 +32,7 @@ export type UserGetPayload<Args extends $SelectIncludeOmit<$Schema, "User", true
 export type PostFindManyArgs = $FindManyArgs<$Schema, "Post">;
 export type PostFindUniqueArgs = $FindUniqueArgs<$Schema, "Post">;
 export type PostFindFirstArgs = $FindFirstArgs<$Schema, "Post">;
+export type PostExistsArgs = $ExistsArgs<$Schema, "Post">;
 export type PostCreateArgs = $CreateArgs<$Schema, "Post">;
 export type PostCreateManyArgs = $CreateManyArgs<$Schema, "Post">;
 export type PostCreateManyAndReturnArgs = $CreateManyAndReturnArgs<$Schema, "Post">;