CreateQuery 02919_test_multi_col (children 3)
 Identifier 02919_test_multi_col
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration str1 (children 1)
    DataType String
   ColumnDeclaration str2 (children 1)
    DataType String
 Storage definition (children 1)
  Function FuzzJSON (children 1)
   ExpressionList (children 2)
    Literal \'{"pet":"rat"}\'
    Literal UInt64_999
