diff --git a/README.md b/README.md
index f394d29..835e6f7 100644
--- a/README.md
+++ b/README.md
@@ -181,7 +181,6 @@ stages:
     volumes:
       - volume: reference
         path: /reference
-id: 1
 name: benchmark1
 author: author1
 mode: mode1
@@ -190,7 +189,6 @@ updatedAt: 2020-07-27T22:32:43.284Z
 
 
 % node build/src/cli/sds.js show candidate candidate1
-id: 1
 name: candidate1
 author: author1
 benchmark: benchmark1
@@ -207,7 +205,6 @@ volumes:
   - name: reference
     type: AzureBlob
     target: 'https://sample.blob.core.windows.net/reference'
-id: 1
 name: suite1
 author: author1
 benchmark: benchmark1
diff --git a/src/laboratory/logic/sequelize_laboratory/models/benchmark.ts b/src/laboratory/logic/sequelize_laboratory/models/benchmark.ts
index 4201f40..f55354d 100644
--- a/src/laboratory/logic/sequelize_laboratory/models/benchmark.ts
+++ b/src/laboratory/logic/sequelize_laboratory/models/benchmark.ts
@@ -8,7 +8,7 @@ import { jsonColumn } from './decorators';
 export class Benchmark extends Model<Benchmark> implements IBenchmark {
   @Column({
     type: DataType.STRING,
-    unique: true,
+    primaryKey: true,
   })
   name!: string;
 
diff --git a/src/laboratory/logic/sequelize_laboratory/models/candidate.ts b/src/laboratory/logic/sequelize_laboratory/models/candidate.ts
index c3959f6..a89d487 100644
--- a/src/laboratory/logic/sequelize_laboratory/models/candidate.ts
+++ b/src/laboratory/logic/sequelize_laboratory/models/candidate.ts
@@ -6,7 +6,7 @@ import { ICandidate } from '../../interfaces';
 export class Candidate extends Model<Candidate> implements ICandidate {
   @Column({
     type: DataType.STRING,
-    unique: true,
+    primaryKey: true,
   })
   name!: string;
 
diff --git a/src/laboratory/logic/sequelize_laboratory/models/result.ts b/src/laboratory/logic/sequelize_laboratory/models/result.ts
index 7cedeec..b7969e8 100644
--- a/src/laboratory/logic/sequelize_laboratory/models/result.ts
+++ b/src/laboratory/logic/sequelize_laboratory/models/result.ts
@@ -8,7 +8,7 @@ import { jsonColumn } from './decorators';
 export class Result extends Model<Result> implements IResult {
   @Column({
     type: DataType.STRING,
-    unique: true,
+    primaryKey: true,
   })
   name!: string;
 
diff --git a/src/laboratory/logic/sequelize_laboratory/models/run.ts b/src/laboratory/logic/sequelize_laboratory/models/run.ts
index e2f4d87..4016db0 100644
--- a/src/laboratory/logic/sequelize_laboratory/models/run.ts
+++ b/src/laboratory/logic/sequelize_laboratory/models/run.ts
@@ -14,7 +14,7 @@ import { jsonColumn } from './decorators';
 export class Run extends Model<Run> implements IRun {
   @Column({
     type: DataType.STRING,
-    unique: true,
+    primaryKey: true,
   })
   name!: string;
 
diff --git a/src/laboratory/logic/sequelize_laboratory/models/suite.ts b/src/laboratory/logic/sequelize_laboratory/models/suite.ts
index 2b41dd0..53ea62b 100644
--- a/src/laboratory/logic/sequelize_laboratory/models/suite.ts
+++ b/src/laboratory/logic/sequelize_laboratory/models/suite.ts
@@ -8,7 +8,7 @@ import { jsonColumn } from './decorators';
 export class Suite extends Model<Suite> implements ISuite {
   @Column({
     type: DataType.STRING,
-    unique: true,
+    primaryKey: true,
   })
   name!: string;