diff --git a/src/migrations/m180119_151608_add_initial_publication_tables.php b/src/migrations/m180119_151608_add_initial_publication_tables.php
index 278ffb0..49be4fb 100644
--- a/src/migrations/m180119_151608_add_initial_publication_tables.php
+++ b/src/migrations/m180119_151608_add_initial_publication_tables.php
@@ -12,13 +12,15 @@ class m180119_151608_add_initial_publication_tables extends Migration
      */
     public function safeUp()
     {
+        $tableOptions = $this->db->getDriverName() === 'mysql' ? 'CHARACTER SET utf8 COLLATE utf8_unicode_ci' : null;
+
         $this->createTable('{{%dmstr_publication_category}}', [
             'id' => $this->primaryKey(),
             'content_widget_template_id' => $this->integer()->notNull(),
             'teaser_widget_template_id' => $this->integer()->notNull(),
             'created_at' => $this->integer(),
             'updated_at' => $this->integer()
-        ], 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB');
+        ], $tableOptions);
         $this->addForeignKey('FK_category_hrzg_widget_template0', '{{%dmstr_publication_category}}', 'content_widget_template_id', '{{%hrzg_widget_template}}', 'id');
         $this->addForeignKey('FK_category_hrzg_widget_template1', '{{%dmstr_publication_category}}', 'teaser_widget_template_id', '{{%hrzg_widget_template}}', 'id');
 
@@ -29,7 +31,7 @@ public function safeUp()
             'title' => $this->string(80)->null(),
             'created_at' => $this->integer(),
             'updated_at' => $this->integer()
-        ], 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB');
+        ], $tableOptions);
         $this->addForeignKey('FK_category_translation_category_translation0', '{{%dmstr_publication_category_translation}}', 'category_id', '{{%dmstr_publication_category}}', 'id', 'CASCADE');
 
         $this->createTable('{{%dmstr_publication_item}}', [
@@ -39,9 +41,20 @@ public function safeUp()
             'end_date' => $this->dateTime(),
             'created_at' => $this->integer(),
             'updated_at' => $this->integer()
-        ], 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB');
+        ], $tableOptions);
         $this->addForeignKey('FK_item_translation_category_translation0', '{{%dmstr_publication_item}}', 'category_id', '{{%dmstr_publication_category}}', 'id');
 
+
+        if ($this->db->getDriverName() === 'pgsql') {
+            $this->execute(<<<SQL
+CREATE TYPE pit_status AS ENUM ('draft','published');
+SQL
+);
+            $enumColumnConfig = "pit_status default 'draft'";
+        } else {
+            $enumColumnConfig = "ENUM('draft', 'published') NOT NULL DEFAULT 'draft'";
+        }
+
         $this->createTable('{{%dmstr_publication_item_translation}}', [
             'id' => $this->primaryKey(),
             'item_id' => $this->integer()->notNull(),
@@ -49,10 +62,10 @@ public function safeUp()
             'title' => $this->string(80),
             'content_widget_json' => $this->text(),
             'teaser_widget_json' => $this->text(),
-            'status' => "ENUM('draft', 'published') NOT NULL DEFAULT 'draft'",
+            'status' => $enumColumnConfig,
             'created_at' => $this->integer(),
             'updated_at' => $this->integer()
-        ], 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB');
+        ], $tableOptions);
         $this->addForeignKey('FK_item_translation_item0', '{{%dmstr_publication_item_translation}}', 'item_id', '{{%dmstr_publication_item}}', 'id', 'CASCADE');
     }
 
diff --git a/src/migrations/m180710_091658_add_meta_table.php b/src/migrations/m180710_091658_add_meta_table.php
index fd6f045..952c88e 100644
--- a/src/migrations/m180710_091658_add_meta_table.php
+++ b/src/migrations/m180710_091658_add_meta_table.php
@@ -12,16 +12,28 @@ class m180710_091658_add_meta_table extends Migration
      */
     public function safeUp()
     {
+        $tableOptions = $this->db->getDriverName() === 'mysql' ? 'CHARACTER SET utf8 COLLATE utf8_unicode_ci' : null;
+
+        if ($this->db->getDriverName() === 'pgsql') {
+            $this->execute(<<<SQL
+CREATE TYPE pim_status AS ENUM ('draft','published');
+SQL
+            );
+            $enumColumnConfig = "pim_status default 'draft'";
+        } else {
+            $enumColumnConfig = "ENUM('draft', 'published') NOT NULL DEFAULT 'draft'";
+        }
+
         $this->createTable('{{%dmstr_publication_item_meta}}', [
             'id' => $this->primaryKey(),
             'item_id' => $this->integer()->notNull(),
             'language_code' => $this->string(8)->notNull(),
-            'status' => "ENUM('draft', 'published') NOT NULL DEFAULT 'draft'",
+            'status' => $enumColumnConfig,
             'release_date' => $this->dateTime()->notNull(),
             'end_date' => $this->dateTime(),
             'created_at' => $this->integer(),
             'updated_at' => $this->integer()
-        ], 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB');
+        ], $tableOptions);
 
         $this->addForeignKey(
             'fk_publication_translation_meta_id',
diff --git a/src/migrations/m181031_131819_add_tag_tables.php b/src/migrations/m181031_131819_add_tag_tables.php
index 2af7af8..2741300 100644
--- a/src/migrations/m181031_131819_add_tag_tables.php
+++ b/src/migrations/m181031_131819_add_tag_tables.php
@@ -12,6 +12,8 @@ class m181031_131819_add_tag_tables extends Migration
      */
     public function safeUp()
     {
+        $tableOptions = $this->db->getDriverName() === 'mysql' ? 'CHARACTER SET utf8 COLLATE utf8_unicode_ci' : null;
+
         $this->createTable('{{%dmstr_publication_tag}}',
             [
                 'id' => $this->primaryKey(),
@@ -27,11 +29,12 @@ public function safeUp()
                 'language' => $this->char(7)->notNull(),
                 'name' => $this->string(128)->notNull(),
                 'created_at' => $this->integer(),
-                'updated_at' => $this->integer(),
-                'UNIQUE KEY `UQ_item_language_name` (`tag_id`,`language`,`name`)',
-                'CONSTRAINT `FK_tag_translation0` FOREIGN KEY (`tag_id`) REFERENCES {{%dmstr_publication_tag}} (`id`)'
+                'updated_at' => $this->integer()
             ],
-            'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB');
+            $tableOptions);
+        $this->createIndex('UQ_item_language_name','{{%dmstr_publication_tag_translation}}', ['tag_id', 'language', 'name'], true);
+        $this->addForeignKey('FK_tag_translation0','{{%dmstr_publication_tag_translation}}', 'tag_id', '{{%dmstr_publication_tag}}', 'id');
+
 
         $this->createTable('{{%dmstr_publication_tag_x_item}}',
             [
@@ -39,11 +42,11 @@ public function safeUp()
                 'tag_id' => $this->integer()->notNull(),
                 'created_at' => $this->integer(),
                 'updated_at' => $this->integer(),
-                'PRIMARY KEY (`item_id`,`tag_id`)',
-                'UNIQUE KEY `dmstr_tag_x_item_unique` (`item_id`,`tag_id`)',
-                'CONSTRAINT `fk_dmstr_tag_x_item0` FOREIGN KEY (`item_id`) REFERENCES {{%dmstr_publication_item}} (`id`) ON DELETE CASCADE ON UPDATE CASCADE',
-                'CONSTRAINT `fk_dmstr_tag_x_item1` FOREIGN KEY (`tag_id`) REFERENCES {{%dmstr_publication_tag}} (`id`) ON DELETE CASCADE ON UPDATE CASCADE'
+                'PRIMARY KEY (item_id, tag_id)'
             ]);
+        $this->addForeignKey('fk_dmstr_tag_x_item0','{{%dmstr_publication_tag_x_item}}', 'item_id', '{{%dmstr_publication_item}}', 'id','CASCADE', 'CASCADE');
+        $this->addForeignKey('fk_dmstr_tag_x_item1','{{%dmstr_publication_tag_x_item}}', 'tag_id', '{{%dmstr_publication_tag}}', 'id','CASCADE', 'CASCADE');
+
     }
 
     /**