orderBy accepts QueryBuilder

lib/query/compiler.js

@@ -2,6 +2,7 @@
 // -------
 const helpers = require('../helpers');
 const Raw = require('../raw');
+const QueryBuilder = require('./builder');
 const JoinClause = require('./joinclause');
 const debug = require('debug');
 
@@ -823,16 +824,24 @@ assign(QueryCompiler.prototype, {
     return vals;
   },
 
+  _formatGroupsItemValue(value) {
+    const { formatter } = this;
+    if (value instanceof Raw) {
+      return formatter.unwrapRaw(value);
+    } else if (value instanceof QueryBuilder) {
+      return '(' + formatter.columnize(value) + ')';
+    } else {
+      return formatter.columnize(value);
+    }
+  },
+
   // Compiles the `order by` statements.
   _groupsOrders(type) {
     const items = this.grouped[type];
     if (!items) return '';
     const { formatter } = this;
     const sql = items.map((item) => {
-      const column =
-        item.value instanceof Raw
-          ? formatter.unwrapRaw(item.value)
-          : formatter.columnize(item.value);
+      const column = this._formatGroupsItemValue(item.value);
       const direction =
         type === 'order' && item.type !== 'orderByRaw'
           ? ` ${formatter.direction(item.direction)}`

test/unit/query/builder.js

@@ -3176,6 +3176,43 @@ describe('QueryBuilder', () => {
     );
   });
 
+  it('order by accepts query builder', () => {
+    testsql(
+      qb()
+        .select()
+        .from('persons')
+        .orderBy(
+          qb()
+            .select()
+            .from('persons as p')
+            .whereColumn('persons.id', 'p.id')
+            .select('p.id')
+        ),
+      {
+        mysql: {
+          sql:
+            'select * from `persons` order by (select `p`.`id` from `persons` as `p` where `persons`.`id` = `p`.`id`) asc',
+          bindings: [],
+        },
+        mssql: {
+          sql:
+            'select * from [persons] order by (select [p].[id] from [persons] as [p] where [persons].[id] = [p].[id]) asc',
+          bindings: [],
+        },
+        pg: {
+          sql:
+            'select * from "persons" order by (select "p"."id" from "persons" as "p" where "persons"."id" = "p"."id") asc',
+          bindings: [],
+        },
+        sqlite3: {
+          sql:
+            'select * from `persons` order by (select `p`.`id` from `persons` as `p` where `persons`.`id` = `p`.`id`) asc',
+          bindings: [],
+        },
+      }
+    );
+  });
+
   it('raw group bys', () => {
     testsql(
       qb()

types/index.d.ts

@@ -1197,6 +1197,9 @@ declare namespace Knex {
     (
       columnDefs: Array<string | { column: string; order?: string }>
     ): QueryBuilder<TRecord, TResult>;
+    <TRecordInner, TResultInner>(
+      subQueryBuilder: QueryBuilder<TRecordInner, TResultInner>
+    ): QueryBuilder<TRecord, TResult>;
   }
 
   interface Intersect<TRecord = any, TResult = unknown[]> {

types/test.ts

@@ -492,6 +492,16 @@ const main = async () => {
     .orderBy('name', 'desc')
     .havingRaw('age > ?', [10]);
 
+  // $ExpectType User[]
+  await knex<User>('users')
+    .select()
+    .orderBy(
+      knex<User>('users')
+        .select('u.id')
+        .from('users as u')
+        .where('users.id', 'u.id')
+    );
+
   // $ExpectType Dict<string | number>[]
   await knex<User>('users').count();