Merge pull request #16606 from edvinv/master

[knex] Add function queryBuilder.

types/knex/index.d.ts

@@ -27,6 +27,7 @@ interface Knex extends Knex.QueryInterface {
     destroy(): Promise<void>;
     batchInsert(tableName : TableName, data: any[], chunkSize : number) : Knex.QueryBuilder;
     schema: Knex.SchemaBuilder;
+    queryBuilder(): Knex.QueryBuilder;
 
     client: any;
     migrate: Knex.Migrator;

types/knex/knex-tests.ts

@@ -299,6 +299,7 @@ knex('books')
   .insert([{title: 'Great Gatsby'}, {title: 'Fahrenheit 451'}]);
 
 knex.batchInsert('books', [{title:'Great Gatsby'}, {title: 'Fahrenheit 451'}], 200);
+knex.queryBuilder().table('books');
 
 knex('books').where('published_date', '<', 2000).update({status: 'archived'});
 knex('books').where('published_date', '<', 2000).update({status: 'archived'}, 'id');