return more child counts and format sql

server/ctrlsubsonic/testdata/test_search_two_q_13

@@ -7,19 +7,18 @@
     "searchResult2": {
       "artist": [
         {
-          "id": 7,
-          "parent": 1,
+          "id": "7",
           "name": "13th Floor Lowervators"
         }
       ],
       "album": [
         {
-          "coverArt": 9,
+          "coverArt": "9",
           "created": "2019-07-08T21:49:41.246041678+01:00",
-          "id": 9,
+          "id": "9",
           "isDir": true,
           "isVideo": false,
-          "parent": 7,
+          "parent": "7",
           "title": "(1966) The Psychedelic Sounds of the 13th Floor Elevators"
         }
       ],
@@ -29,13 +28,13 @@
           "artist": "A Certain Ratio",
           "bitRate": 894,
           "contentType": "audio/x-flac",
-          "coverArt": 5,
+          "coverArt": "5",
           "created": "2019-07-08T21:49:41.037683099+01:00",
           "duration": 332,
-          "id": 6,
+          "id": "6",
           "isDir": false,
           "isVideo": false,
-          "parent": 5,
+          "parent": "5",
           "path": "A Certain Ratio/(1994) The Graveyard and the Ballroom/13.14 Flight.flac",
           "size": 37302417,
           "suffix": "flac",
@@ -49,13 +48,13 @@
           "artist": "13th Floor Elevators",
           "bitRate": 244,
           "contentType": "audio/mpeg",
-          "coverArt": 9,
+          "coverArt": "9",
           "created": "2019-07-08T21:49:41.209108272+01:00",
           "duration": 154,
-          "id": 40,
+          "id": "40",
           "isDir": false,
           "isVideo": false,
-          "parent": 9,
+          "parent": "9",
           "path": "13th Floor Lowervators/(1966) The Psychedelic Sounds of the 13th Floor Elevators/13.21 Before You Accuse Me.mp3",
           "size": 4722688,
           "suffix": "mp3",
@@ -69,13 +68,13 @@
           "artist": "Swell Maps",
           "bitRate": 1204,
           "contentType": "audio/x-flac",
-          "coverArt": 16,
+          "coverArt": "16",
           "created": "2019-07-08T21:49:41.43457798+01:00",
           "duration": 220,
-          "id": 76,
+          "id": "76",
           "isDir": false,
           "isVideo": false,
-          "parent": 16,
+          "parent": "16",
           "path": "Swell Maps/(1980) Jane From Occupied Europe/13.16 Blenheim Shots.flac",
           "size": 33140852,
           "suffix": "flac",
@@ -89,13 +88,13 @@
           "artist": "Swell Maps",
           "bitRate": 295,
           "contentType": "audio/mpeg",
-          "coverArt": 17,
+          "coverArt": "17",
           "created": "2019-07-08T21:49:41.493347193+01:00",
           "duration": 463,
-          "id": 93,
+          "id": "93",
           "isDir": false,
           "isVideo": false,
-          "parent": 17,
+          "parent": "17",
           "path": "Swell Maps/(1979) A Trip to Marineville/d01 13.14 Adventuring Into Basketry.mp3",
           "size": 17119309,
           "suffix": "mp3",
@@ -109,13 +108,13 @@
           "artist": "Ten Years After",
           "bitRate": 192,
           "contentType": "audio/ogg",
-          "coverArt": 19,
+          "coverArt": "19",
           "created": "2019-07-08T21:49:41.573811068+01:00",
           "duration": 433,
-          "id": 107,
+          "id": "107",
           "isDir": false,
           "isVideo": false,
-          "parent": 19,
+          "parent": "19",
           "path": "Ten Years After/(1967) Ten Years After/13.15 Spider in My Web.ogg",
           "size": 10400948,
           "suffix": "ogg",
@@ -129,13 +128,13 @@
           "artist": "Captain Beefheart & His Magic Band",
           "bitRate": 160,
           "contentType": "audio/mpeg",
-          "coverArt": 21,
+          "coverArt": "21",
           "created": "2019-07-08T21:49:41.687805489+01:00",
           "duration": 152,
-          "id": 129,
+          "id": "129",
           "isDir": false,
           "isVideo": false,
-          "parent": 21,
+          "parent": "21",
           "path": "Captain Beefheart/(1970) Lick My Decals Off, Bitch/13.15 Space-Age Couple.mp3",
           "size": 3054515,
           "suffix": "mp3",