diff --git a/packages/core/database/src/database-utils/index.ts b/packages/core/database/src/database-utils/index.ts
new file mode 100644
index 000000000..513ba1d3f
--- /dev/null
+++ b/packages/core/database/src/database-utils/index.ts
@@ -0,0 +1,38 @@
+import Database from '../database';
+import lodash from 'lodash';
+
+export default class DatabaseUtils {
+  constructor(public db: Database) {}
+
+  addSchema(tableName, schema?) {
+    if (this.db.options.schema) {
+      schema = this.db.options.schema;
+    }
+
+    if (schema) {
+      // @ts-ignore
+      tableName = this.db.sequelize.getQueryInterface().queryGenerator.addSchema({
+        tableName,
+        _schema: this.db.options.schema,
+      });
+    }
+
+    return tableName;
+  }
+
+  quoteTable(tableName) {
+    const queryGenerator = this.db.sequelize.getQueryInterface().queryGenerator;
+    // @ts-ignore
+    tableName = queryGenerator.quoteTable(lodash.isPlainObject(tableName) ? tableName : this.addSchema(tableName));
+
+    return tableName;
+  }
+
+  schema() {
+    if (!this.db.inDialect('postgres')) {
+      return undefined;
+    }
+
+    return this.db.options.schema || 'public';
+  }
+}
diff --git a/packages/core/database/src/database.ts b/packages/core/database/src/database.ts
index 563766056..a1eface0b 100644
--- a/packages/core/database/src/database.ts
+++ b/packages/core/database/src/database.ts
@@ -61,6 +61,8 @@ import {
   ValidateListener,
 } from './types';
 
+import DatabaseUtils from './database-utils';
+
 export interface MergeOptions extends merge.Options {}
 
 export interface PendingOptions {
@@ -155,6 +157,7 @@ export class Database extends EventEmitter implements AsyncEmitter {
   modelCollection = new Map<ModelStatic<any>, Collection>();
   tableNameCollectionMap = new Map<string, Collection>();
 
+  utils = new DatabaseUtils(this);
   referenceMap = new ReferencesMap();
   inheritanceMap = new InheritanceMap();
 
diff --git a/packages/core/database/src/sync-runner.ts b/packages/core/database/src/sync-runner.ts
index a31573ef2..91cf7cae9 100644
--- a/packages/core/database/src/sync-runner.ts
+++ b/packages/core/database/src/sync-runner.ts
@@ -31,6 +31,9 @@ export class SyncRunner {
 
     const tableName = model.tableName;
 
+    const schemaTableName = db.utils.addSchema(tableName);
+    const quoteTableName = db.utils.quoteTable(tableName);
+
     const attributes = model.tableAttributes;
 
     const childAttributes = lodash.pickBy(attributes, (value) => {
@@ -85,7 +88,7 @@ export class SyncRunner {
       }
     }
 
-    await this.createTable(tableName, childAttributes, options, model, parentTables, schemaName);
+    await this.createTable(schemaTableName, childAttributes, options, model, parentTables, db);
 
     if (maxSequenceName) {
       const parentsDeep = Array.from(db.inheritanceMap.getParents(inheritedCollection.name)).map(
@@ -134,9 +137,7 @@ WHERE table_name='${queryName}' and column_name='id' and table_schema = '${schem
     }
   }
 
-  static async createTable(tableName, attributes, options, model, parentTables, schema) {
-    tableName = model.queryGenerator.addSchema({ tableName, _schema: schema, _schemaDelimiter: '' });
-
+  static async createTable(tableName, attributes, options, model, parentTables, db) {
     let sql = '';
 
     options = { ...options };
@@ -161,7 +162,11 @@ WHERE table_name='${queryName}' and column_name='id' and table_schema = '${schem
 
     sql = `${queryGenerator.createTableQuery(tableName, attributes, options)}`.replace(
       ';',
-      ` INHERITS (${parentTables.map((t) => `"${schema}"."${t}"`).join(', ')});`,
+      ` INHERITS (${parentTables
+        .map((t) => {
+          return db.utils.quoteTable(db.utils.addSchema(t, db.options.schema));
+        })
+        .join(', ')});`,
     );
 
     return await model.sequelize.query(sql, options);
diff --git a/packages/plugins/duplicator/src/server/restorer.ts b/packages/plugins/duplicator/src/server/restorer.ts
index 22f752341..2d20eb030 100644
--- a/packages/plugins/duplicator/src/server/restorer.ts
+++ b/packages/plugins/duplicator/src/server/restorer.ts
@@ -127,7 +127,7 @@ export class Restorer extends AppMigrator {
 
       const metaContent = await fsPromises.readFile(collectionMetaPath, 'utf8');
       const meta = JSON.parse(metaContent);
-      const tableName = this.quoteTable(meta.tableName);
+      const tableName = this.app.db.utils.quoteTable(meta.tableName);
 
       try {
         // disable trigger
@@ -199,25 +199,6 @@ export class Restorer extends AppMigrator {
     await decompress(backupFilePath, this.workDir);
   }
 
-  quoteTable(tableName) {
-    // @ts-ignore
-    tableName = this.app.db.sequelize.getQueryInterface().queryGenerator.quoteTable(this.addSchema(tableName));
-
-    return tableName;
-  }
-
-  addSchema(tableName) {
-    if (this.app.db.options.schema) {
-      // @ts-ignore
-      tableName = this.app.db.sequelize.getQueryInterface().queryGenerator.addSchema({
-        tableName,
-        _schema: this.app.db.options.schema,
-      });
-    }
-
-    return tableName;
-  }
-
   async importCollection(options: {
     name: string;
     insert?: boolean;
@@ -225,6 +206,8 @@ export class Restorer extends AppMigrator {
     rowCondition?: (row: any) => boolean;
   }) {
     const app = this.app;
+    const db = app.db;
+
     const collectionName = options.name;
     const dir = this.workDir;
     const collection = app.db.getCollection(collectionName);
@@ -235,8 +218,8 @@ export class Restorer extends AppMigrator {
     const meta = JSON.parse(metaContent);
     app.log.info(`collection meta ${metaContent}`);
 
-    const addSchemaTableName = this.addSchema(meta.tableName);
-    const tableName = this.quoteTable(meta.tableName);
+    const addSchemaTableName = db.utils.addSchema(meta.tableName);
+    const tableName = db.utils.quoteTable(meta.tableName);
 
     if (options.clear !== false) {
       // truncate old data