diff --git a/src/wp-includes/comment.php b/src/wp-includes/comment.php
index dd45821c34..33a6121fd2 100644
--- a/src/wp-includes/comment.php
+++ b/src/wp-includes/comment.php
@@ -245,6 +245,7 @@ class WP_Comment_Query {
 
 		$defaults = array(
 			'author_email' => '',
+			'fields' => '',
 			'ID' => '',
 			'karma' => '',
 			'number' => '',
@@ -368,8 +369,16 @@ class WP_Comment_Query {
 		if ( $this->query_vars['count'] ) {
 			$fields = 'COUNT(*)';
 		} else {
-			$fields = '*';
+			switch ( strtolower( $this->query_vars['fields'] ) ) {
+				case 'ids':
+					$fields = "$wpdb->comments.comment_ID";
+					break;
+				default:
+					$fields = "*";
+					break;
+			}
 		}
+
 		$join = '';
 		$where = $approved;
 
@@ -460,6 +469,12 @@ class WP_Comment_Query {
 		if ( $this->query_vars['count'] ) {
 			return $wpdb->get_var( $query );
 		}
+
+		if ( 'ids' == $this->query_vars['fields'] ) {
+			$this->comments = $wpdb->get_col( $query );
+			return array_map( 'intval', $this->comments );
+		}
+
 		$results = $wpdb->get_results( $query );
 		/**
 		 * Filter the comment query results.
diff --git a/tests/phpunit/tests/comment/query.php b/tests/phpunit/tests/comment/query.php
index 2dc3623608..d2a5e91fd3 100644
--- a/tests/phpunit/tests/comment/query.php
+++ b/tests/phpunit/tests/comment/query.php
@@ -180,4 +180,22 @@ class Tests_Comment_Query extends WP_UnitTestCase {
 		$this->assertEquals( $users[1], $comments[2]->user_id );
 
 	}
+
+	/**
+	 * @ticket 28434
+	 */
+	function test_fields_ids_query() {
+		$comment_1 = $this->factory->comment->create( array( 'comment_post_ID' => $this->post_id, 'user_id' => 7, 'comment_approved' => '1' ) );
+		$comment_2 = $this->factory->comment->create( array( 'comment_post_ID' => $this->post_id, 'user_id' => 1, 'comment_approved' => '1' ) );
+		$comment_3 = $this->factory->comment->create( array( 'comment_post_ID' => $this->post_id, 'user_id' => 1, 'comment_approved' => '1' ) );
+
+		// Ensure we are dealing with integers, and not objects.
+		$this->assertInternalType( 'integer', $comment_1 );
+		$this->assertInternalType( 'integer', $comment_2 );
+		$this->assertInternalType( 'integer', $comment_3 );
+
+		$comment_ids = get_comments( array( 'fields' => 'ids' ) );
+		$this->assertCount( 3, $comment_ids );
+		$this->assertEquals( array( $comment_1, $comment_2, $comment_3 ), $comment_ids );
+	}
 }