When the connector executes a query, it tries to match the column names the query returns with the column names specified on the output link of the connector stage.
当连接器执行查询时，它试图将查询返回的列名与在连接器阶段的输出链接中指定的列名匹配。
2
This is important to note as the connector would look for those columns in the list of link columns.
这很重要，因为连接器将在链接列列表中查找这些列。
3
The source context refers to the case when there is an output link coming out of the connector stage.