[GitHub] [spark] dongjoon-hyun commented on pull request #31081: [SPARK-34039][SQL] ReplaceTable should invalidate cache

[GitBox <gi...@apache.org>]

dongjoon-hyun commented on pull request #31081:
URL: https://github.com/apache/spark/pull/31081#issuecomment-756890129


   @sunchao . I tested this case with Apache Spark 3.1.0 RC1 with Iceberg 0.10. This is a correctness issue. How do you think about that? If you agree, please make a backport. (Also, cc @HyukjinKwon )
   ```
   {code}
   spark-sql> SELECT * FROM local.db.table;
   4	5
   
   spark-sql> CACHE TABLE v AS SELECT * FROM local.db.table;
   
   spark-sql> SELECT * FROM v;
   4	5
   
   spark-sql> REPLACE TABLE local.db.table AS SELECT 100 id, '100' string;
   
   spark-sql> SELECT * FROM v;
   4	5
   
   spark-sql> SELECT * FROM local.db.table;
   100	100
   ```


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