szehon-ho commented on a change in pull request #4255:
URL: https://github.com/apache/iceberg/pull/4255#discussion_r827428919
##########
File path: docs/spark/spark-queries.md
##########
@@ -168,7 +168,9 @@ To inspect a table's history, snapshots, and other
metadata, Iceberg supports me
Metadata tables are identified by adding the metadata table name after the
original table name. For example, history for `db.table` is read using
`db.table.history`.
{{< hint info >}}
-As of Spark 3.0, the format of the table name for inspection
(`catalog.database.table.metadata`) doesn't work with Spark's default catalog
(`spark_catalog`). If you've replaced the default catalog, you may want to use
`DataFrameReader` API to inspect the table.
+For Spark 2.4, use the `DataFrameReader` API to [inspect
tables](#inspecting-with-dataframes).
+
+For Spark 3, prior to 3.2, the Spark session catalog (`spark_catalog`) does
not support table names with multipart identifiers such as
`catalog.database.table.metadata`. To work around this, for querying metadata
tables, configure a different catalog that uses the Iceberg `SparkCatalog`
class, or use the Spark `DataFrameReader` API. From Spark 3.2 onwards, the
session catalog supports table names with multipart identifiers.
Review comment:
Also I feel like it is still a bit wordy, can we just say after the
first sentence:
As a workaround, configure the catalog
`org.apache.iceberg.spark.SparkCatalog` or use the DataFrameReader API.
I was thinking we dont need 'for querying metadata tables', as I think
that's what this section is about. And I feel, no need to mention From Spark
3.2 onwards, as it's implied the issue is gone after 3.2.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]