diff --git a/core/src/main/java/jef/model/migration/operation/AddFieldOperation.java b/core/src/main/java/jef/model/migration/operation/AddFieldOperation.java
index a25d840..3cac0dc 100644
--- a/core/src/main/java/jef/model/migration/operation/AddFieldOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddFieldOperation.java
@@ -1,16 +1,22 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class AddFieldOperation implements MigrationOperation {
     protected final String table;
     protected final String field;
     protected final String sqlType;
     protected final boolean notNull;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<AddFieldOperation> {
         protected final String table;
         protected final String field;
diff --git a/core/src/main/java/jef/model/migration/operation/AddForeignKeyOperation.java b/core/src/main/java/jef/model/migration/operation/AddForeignKeyOperation.java
index 3693276..e388c82 100644
--- a/core/src/main/java/jef/model/migration/operation/AddForeignKeyOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddForeignKeyOperation.java
@@ -2,12 +2,16 @@ package jef.model.migration.operation;
 
 import jef.model.constraints.ForeignKeyConstraint;
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class AddForeignKeyOperation implements MigrationOperation {
     private final String name;
     private final String table;
@@ -17,6 +21,8 @@ public class AddForeignKeyOperation implements MigrationOperation {
     private final ForeignKeyConstraint.Action onUpdate;
     private final ForeignKeyConstraint.Action onDelete;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<AddForeignKeyOperation> {
         private final String name;
         private final String table;
diff --git a/core/src/main/java/jef/model/migration/operation/AddIndexOperation.java b/core/src/main/java/jef/model/migration/operation/AddIndexOperation.java
index d14b858..faf74cc 100644
--- a/core/src/main/java/jef/model/migration/operation/AddIndexOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddIndexOperation.java
@@ -1,15 +1,21 @@
 package jef.model.migration.operation;
 
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
+@EqualsAndHashCode(callSuper = true)
+@ToString
 public class AddIndexOperation extends AddKeyOperationBase {
     public AddIndexOperation(String name, String table, List<String> fields) {
         super(name, table, fields);
     }
 
+    @EqualsAndHashCode(callSuper = true)
+    @ToString
     public static class Builder extends AddKeyOperationBase.Builder<AddIndexOperation> {
         public Builder(String name, String table, List<String> fields) {
             super(name, table, fields);
diff --git a/core/src/main/java/jef/model/migration/operation/AddKeyOperation.java b/core/src/main/java/jef/model/migration/operation/AddKeyOperation.java
index 151261c..b200aca 100644
--- a/core/src/main/java/jef/model/migration/operation/AddKeyOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddKeyOperation.java
@@ -1,15 +1,21 @@
 package jef.model.migration.operation;
 
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
+@EqualsAndHashCode(callSuper = true)
+@ToString
 public class AddKeyOperation extends AddKeyOperationBase {
     public AddKeyOperation(String name, String table, List<String> fields) {
         super(name, table, fields);
     }
 
+    @EqualsAndHashCode(callSuper = true)
+    @ToString
     public static class Builder extends AddKeyOperationBase.Builder<AddKeyOperation> {
         public Builder(String name, String table, List<String> fields) {
             super(name, table, fields);
diff --git a/core/src/main/java/jef/model/migration/operation/AddKeyOperationBase.java b/core/src/main/java/jef/model/migration/operation/AddKeyOperationBase.java
index 80708e2..7a7527a 100644
--- a/core/src/main/java/jef/model/migration/operation/AddKeyOperationBase.java
+++ b/core/src/main/java/jef/model/migration/operation/AddKeyOperationBase.java
@@ -1,17 +1,23 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public abstract class AddKeyOperationBase implements MigrationOperation {
     protected final String name;
     protected final String table;
     protected final List<String> fields;
 
+    @EqualsAndHashCode
+    @ToString
     public abstract static class Builder<T extends AddKeyOperationBase> implements MigrationOperation.Builder<T> {
         protected final String name;
         protected final String table;
diff --git a/core/src/main/java/jef/model/migration/operation/AddPrimaryKeyOperation.java b/core/src/main/java/jef/model/migration/operation/AddPrimaryKeyOperation.java
index ae4d68a..7e03310 100644
--- a/core/src/main/java/jef/model/migration/operation/AddPrimaryKeyOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddPrimaryKeyOperation.java
@@ -1,15 +1,21 @@
 package jef.model.migration.operation;
 
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
+@EqualsAndHashCode(callSuper = true)
+@ToString
 public class AddPrimaryKeyOperation extends AddKeyOperationBase {
     public AddPrimaryKeyOperation(String name, String table, List<String> fields) {
         super(name, table, fields);
     }
 
+    @EqualsAndHashCode(callSuper = true)
+    @ToString
     public static class Builder extends AddKeyOperationBase.Builder<AddPrimaryKeyOperation> {
         public Builder(String name, String table, List<String> fields) {
             super(name, table, fields);
diff --git a/core/src/main/java/jef/model/migration/operation/AddTableOperation.java b/core/src/main/java/jef/model/migration/operation/AddTableOperation.java
index d48fa68..8c84c00 100644
--- a/core/src/main/java/jef/model/migration/operation/AddTableOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddTableOperation.java
@@ -1,16 +1,22 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class AddTableOperation implements MigrationOperation {
     private final String table;
     private final List<AddFieldOperation.Builder> fields;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<AddTableOperation> {
         private final String table;
         private final List<AddFieldOperation.Builder> fields;
diff --git a/core/src/main/java/jef/model/migration/operation/AddUniqueKeyOperation.java b/core/src/main/java/jef/model/migration/operation/AddUniqueKeyOperation.java
index 0936763..93e5b75 100644
--- a/core/src/main/java/jef/model/migration/operation/AddUniqueKeyOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/AddUniqueKeyOperation.java
@@ -1,15 +1,21 @@
 package jef.model.migration.operation;
 
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 import java.util.List;
 
 @Getter
+@EqualsAndHashCode(callSuper = true)
+@ToString
 public class AddUniqueKeyOperation extends AddKeyOperationBase {
     public AddUniqueKeyOperation(String name, String table, List<String> fields) {
         super(name, table, fields);
     }
 
+    @EqualsAndHashCode(callSuper = true)
+    @ToString
     public static class Builder extends AddKeyOperationBase.Builder<AddUniqueKeyOperation> {
         public Builder(String name, String table, List<String> fields) {
             super(name, table, fields);
diff --git a/core/src/main/java/jef/model/migration/operation/DropConstraintOperation.java b/core/src/main/java/jef/model/migration/operation/DropConstraintOperation.java
index 54ea8b5..2a6b853 100644
--- a/core/src/main/java/jef/model/migration/operation/DropConstraintOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/DropConstraintOperation.java
@@ -1,14 +1,20 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class DropConstraintOperation implements MigrationOperation {
     private final String name;
     private final String table;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<DropConstraintOperation> {
         private final String name;
         private final String table;
diff --git a/core/src/main/java/jef/model/migration/operation/DropFieldOperation.java b/core/src/main/java/jef/model/migration/operation/DropFieldOperation.java
index 25b6fc1..e50b11d 100644
--- a/core/src/main/java/jef/model/migration/operation/DropFieldOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/DropFieldOperation.java
@@ -1,14 +1,20 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class DropFieldOperation implements MigrationOperation {
     private final String table;
     private final String field;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<DropFieldOperation> {
         private final String table;
         private final String field;
diff --git a/core/src/main/java/jef/model/migration/operation/DropTableOperation.java b/core/src/main/java/jef/model/migration/operation/DropTableOperation.java
index fe83b0c..c4ee8bc 100644
--- a/core/src/main/java/jef/model/migration/operation/DropTableOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/DropTableOperation.java
@@ -1,13 +1,19 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class DropTableOperation implements MigrationOperation {
     private final String table;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<DropTableOperation> {
         private final String table;
 
diff --git a/core/src/main/java/jef/model/migration/operation/RenameFieldOperation.java b/core/src/main/java/jef/model/migration/operation/RenameFieldOperation.java
index 7494cd9..ffc5544 100644
--- a/core/src/main/java/jef/model/migration/operation/RenameFieldOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/RenameFieldOperation.java
@@ -1,15 +1,21 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class RenameFieldOperation implements MigrationOperation {
     private final String table;
     private final String oldName;
     private final String newName;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<RenameFieldOperation> {
         private final String table;
         private final String oldName;
diff --git a/core/src/main/java/jef/model/migration/operation/RenameTableOperation.java b/core/src/main/java/jef/model/migration/operation/RenameTableOperation.java
index a435c08..2fff6cb 100644
--- a/core/src/main/java/jef/model/migration/operation/RenameTableOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/RenameTableOperation.java
@@ -1,14 +1,20 @@
 package jef.model.migration.operation;
 
 import lombok.AllArgsConstructor;
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
 @AllArgsConstructor
+@EqualsAndHashCode
+@ToString
 public class RenameTableOperation implements MigrationOperation {
     private final String oldName;
     private final String newName;
 
+    @EqualsAndHashCode
+    @ToString
     public static class Builder implements MigrationOperation.Builder<RenameTableOperation> {
         private final String oldName;
         private final String newName;
diff --git a/core/src/main/java/jef/model/migration/operation/UpdateFieldOperation.java b/core/src/main/java/jef/model/migration/operation/UpdateFieldOperation.java
index 078ac5a..c8cb4df 100644
--- a/core/src/main/java/jef/model/migration/operation/UpdateFieldOperation.java
+++ b/core/src/main/java/jef/model/migration/operation/UpdateFieldOperation.java
@@ -1,8 +1,12 @@
 package jef.model.migration.operation;
 
+import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.ToString;
 
 @Getter
+@EqualsAndHashCode(callSuper = true)
+@ToString
 public class UpdateFieldOperation extends AddFieldOperation {
     private final String newName;
 
@@ -11,6 +15,8 @@ public class UpdateFieldOperation extends AddFieldOperation {
         this.newName = newName;
     }
 
+    @EqualsAndHashCode(callSuper = true)
+    @ToString
     public static class Builder extends AddFieldOperation.Builder {
         private String newName;