这将工作：

map_schema=MapType(StringType(), StructType([\
    StructField('amount', StringType(), True),\
    StructField('time', StringType(),True)\
]));

df\
.withColumn("json_column", F.from_json(F.col("json_column"), map_schema, {"allowUnquotedFieldNames":"true"}))\
.select("*", F.explode("json_column").alias("key", "value"))\
.select("id", "value.*")\
.show(truncate=False)

输入：

+---+---------------------------------------------------+
|id |json_column                                        |
+---+---------------------------------------------------+
|1  |{1: {amount: 1, time: 2}, 2: {amount: 10, time: 5}}|
|2  |{3: {amount: 1, time: 2}, 4: {amount: 10, time: 5}}|
+---+---------------------------------------------------+

root
 |-- id: long (nullable = true)
 |-- json_column: string (nullable = true)

输出：

+---+------+----+
|id |amount|time|
+---+------+----+
|1  |1     |2   |
|1  |10    |5   |
|2  |1     |2   |
|2  |10    |5   |
+---+------+----+