Constant places::storage::bookmarks::RAW_BOOKMARK_SQL

const RAW_BOOKMARK_SQL: &str = "
    SELECT
        b.guid,
        p.guid AS parentGuid,
        b.position,
        b.dateAdded,
        b.lastModified,
        b.type,
        -- Note we return null for titles with an empty string.
        NULLIF(b.title, '') AS title,
        h.url AS url,
        b.id AS _id,
        b.parent AS _parentId,
        (SELECT count(*) FROM moz_bookmarks WHERE parent = b.id) AS _childCount,
        p.parent AS _grandParentId,
        b.syncStatus AS _syncStatus,
        -- the columns below don't appear in the desktop query
        b.fk,
        b.syncChangeCounter
    FROM moz_bookmarks b
    LEFT JOIN moz_bookmarks p ON p.id = b.parent
    LEFT JOIN moz_places h ON h.id = b.fk
";

sql is based on fetchBookmark() in Desktop's Bookmarks.jsm, with 'fk' added and title's NULLIF handling.