I want to use spark jdbc to access alibaba cloud hologres 
(https://www.alibabacloud.com/product/hologres)  internal hidden column 
`hg_binlog_timestamp_us ` but met the following error:


Exception in thread "main" org.apache.spark.sql.AnalysisException: cannot 
resolve 'hg_binlog_timestamp_us' given input columns: 
[top_trans_order.acc_split_bunch, top_trans_order.acct_code, ...]; line 4 pos 
30;


So, my question is how to access the internal hidden columns of table by spark 
jdbc (sql and DataFrame) ? Thanks!

Reply via email to