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Posted to issues@iceberg.apache.org by GitBox <gi...@apache.org> on 2020/07/15 00:32:57 UTC

[GitHub] [iceberg] rdblue commented on a change in pull request #1205: Update the site for the 0.9.0 release

rdblue commented on a change in pull request #1205:
URL: https://github.com/apache/iceberg/pull/1205#discussion_r454721349



##########
File path: site/docs/spark.md
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@@ -286,6 +286,11 @@ val df = spark.read
     .table("prod.db.table")
 ```
 
+!!! Warning
+    When reading with DataFrames in Spark 3, use `table` to load a table by name from a catalog.
+    Using `format("iceberg")` loads an isolated table reference that is not refreshed when other queries update the table.

Review comment:
       @dongjoon-hyun, this is the warning I've added to make people aware of the issues with the `DataFrameReader`. Please take a look if you have time. There is also one below for the v1 `DataFrameWriter` API.




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