diff --git a/packages/core/database/src/__tests__/filter.test.ts b/packages/core/database/src/__tests__/filter.test.ts
index 6454f0dbd3..406b84dd8a 100644
--- a/packages/core/database/src/__tests__/filter.test.ts
+++ b/packages/core/database/src/__tests__/filter.test.ts
@@ -14,6 +14,27 @@ describe('filter', () => {
     await db.close();
   });
 
+  it('should filter by field in camel case', async () => {
+    const UserCollection = db.collection({
+      name: 'users',
+      fields: [{ type: 'array', name: 'referralSource' }],
+    });
+
+    await db.sync();
+
+    await UserCollection.repository.create({
+      values: {
+        referralSource: ['a', 'b'],
+      },
+    });
+
+    const usersCount = await UserCollection.repository.count({
+      filter: { $and: [{ referralSource: { $notEmpty: true } }] },
+    });
+
+    expect(usersCount).toBe(1);
+  });
+
   it('should filter by belongs to many association', async () => {
     const A = db.collection({
       name: 'a',
diff --git a/packages/core/database/src/__tests__/operator/array-operator.test.ts b/packages/core/database/src/__tests__/operator/array-operator.test.ts
index c7f98bc5da..0ffbefa62a 100644
--- a/packages/core/database/src/__tests__/operator/array-operator.test.ts
+++ b/packages/core/database/src/__tests__/operator/array-operator.test.ts
@@ -44,7 +44,7 @@ describe('array field operator', function () {
   test('array field update', async () => {
     const Post = db.collection({
       name: 'posts',
-      fields: [{ type: 'array', name: 'tags' }],
+      fields: [{ type: 'array', name: 'tagsFields' }],
     });
 
     await db.sync({ force: true });
@@ -52,13 +52,13 @@ describe('array field operator', function () {
     await Post.repository.create({});
     const p1 = await Post.repository.create({
       values: {
-        tags: ['t1', 't2'],
+        tagsFields: ['t1', 't2'],
       },
     });
 
     let result = await Post.repository.findOne({
       filter: {
-        'tags.$match': ['t2', 't1'],
+        'tagsFields.$match': ['t2', 't1'],
       },
     });
 
@@ -67,13 +67,13 @@ describe('array field operator', function () {
     await Post.repository.update({
       filterByTk: <any>p1.get('id'),
       values: {
-        tags: ['t3', 't2'],
+        tagsFields: ['t3', 't2'],
       },
     });
 
     result = await Post.repository.findOne({
       filter: {
-        'tags.$match': ['t3', 't2'],
+        'tagsFields.$match': ['t3', 't2'],
       },
     });
 
diff --git a/packages/core/database/src/operators/array.ts b/packages/core/database/src/operators/array.ts
index fc4d2703cd..72b57cdb3d 100644
--- a/packages/core/database/src/operators/array.ts
+++ b/packages/core/database/src/operators/array.ts
@@ -3,8 +3,7 @@ import { Op, Sequelize } from 'sequelize';
 import { isMySQL, isPg } from './utils';
 
 const getFieldName = (ctx) => {
-  const fieldName = ctx.fieldName;
-  return fieldName;
+  return ctx.model.rawAttributes[ctx.fieldName]?.field || ctx.fieldName;
 };
 
 const escape = (value, ctx) => {
@@ -43,11 +42,14 @@ const emptyQuery = (ctx, operator: '=' | '>') => {
     funcName = 'json_length';
   }
 
-  return `(select ${ifNull}(${funcName}(${fieldName}), 0) ${operator} 0)`;
+  const queryInterface = getQueryInterface(ctx);
+
+  return `(select ${ifNull}(${funcName}(${queryInterface.quoteIdentifier(fieldName)}), 0) ${operator} 0)`;
 };
 
 export default {
   $match(value, ctx) {
+    const queryInterface = getQueryInterface(ctx);
     const fieldName = getFieldName(ctx);
 
     if (isPg(ctx)) {