左/内连接正在复制我的res_id记录....
也许你分享你的代码会有帮助？
这似乎做你需要的：

from pyspark.sql import SparkSession

spark = SparkSession.builder.getOrCreate()

left = spark.createDataFrame(
    [
        {"session_id": 1, "time": 10},
        {"session_id": 2, "time": 20},
        {"session_id": 3, "time": 30},
    ]
)

right = spark.createDataFrame(
    [
        {"res_id": 1, "sess_id": 1},
        {"res_id": 2, "sess_id": 2},
        {"res_id": 3, "sess_id": 1},
    ]
)

(
    left.join(right, left.session_id == right.sess_id).select(
        "res_id", "sess_id", "time"
    )
).show()

其输出：

+------+-------+----+                                                           
|res_id|sess_id|time|  
+------+-------+----+  
|     1|      1|  10|  
|     3|      1|  10|  
|     2|      2|  20|  
+------+-------+----+

这与上面所需的输出相同。