CreateQuery 01889_sql_json (children 3)
 Identifier 01889_sql_json
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType UInt8
   ColumnDeclaration json (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Identifier id