diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index ef155e0..93c1700 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -16,7 +16,7 @@ enum JobStatus {
 
 model ConversionJob {
   id                        Int       @id @default(autoincrement()) @db.UnsignedInt
-  uuid                      String    @unique @db.Char(36)
+  uuid                      String    @unique(map: "uniq_uuid") @db.Char(36)
   status                    JobStatus @default(pending)
   family                    String    @db.VarChar(32)
   sourceFormat              String    @map("source_format") @db.VarChar(16)
@@ -25,19 +25,19 @@ model ConversionJob {
   inputPath                 String    @map("input_path") @db.VarChar(255)
   outputPath                String?   @map("output_path") @db.VarChar(255)
   inputMimeType             String    @map("input_mime_type") @db.VarChar(128)
-  outputMimeType             String?   @map("output_mime_type") @db.VarChar(128)
-  inputSizeBytes             Int       @map("input_size_bytes") @db.UnsignedInt
-  outputSizeBytes             Int?      @map("output_size_bytes") @db.UnsignedInt
-  quality                    Int?      @db.UnsignedSmallInt
-  conversionDurationSeconds  Decimal?  @map("conversion_duration_seconds") @db.Decimal(10, 3)
-  errorMessage               String?   @map("error_message") @db.VarChar(255)
-  errorLog                   String?   @map("error_log") @db.Text
-  createdAt                  DateTime  @default(now()) @map("created_at")
-  updatedAt                  DateTime  @default(now()) @updatedAt @map("updated_at")
-  expiresAt                  DateTime  @map("expires_at")
-  cleanedAt                  DateTime? @map("cleaned_at")
+  outputMimeType            String?   @map("output_mime_type") @db.VarChar(128)
+  inputSizeBytes            Int       @map("input_size_bytes") @db.UnsignedInt
+  outputSizeBytes           Int?      @map("output_size_bytes") @db.UnsignedInt
+  quality                   Int?      @db.UnsignedSmallInt
+  conversionDurationSeconds Decimal?  @map("conversion_duration_seconds") @db.Decimal(10, 3)
+  errorMessage              String?   @map("error_message") @db.VarChar(255)
+  errorLog                  String?   @map("error_log") @db.Text
+  createdAt                 DateTime  @default(now()) @map("created_at") @db.DateTime(0)
+  updatedAt                 DateTime  @default(now()) @updatedAt @map("updated_at") @db.DateTime(0)
+  expiresAt                 DateTime  @map("expires_at") @db.DateTime(0)
+  cleanedAt                 DateTime? @map("cleaned_at") @db.DateTime(0)
 
-  @@index([status])
-  @@index([expiresAt])
+  @@index([status], map: "idx_status")
+  @@index([expiresAt], map: "idx_expires_at")
   @@map("conversion_jobs")
 }