Linhong Liu 3c683434fa [SPARK-35686][SQL] Not allow using auto-generated alias when creating view ... ### What changes were proposed in this pull request? As described in #32831, Spark has compatible issues when querying a view created by an older version. The root cause is that Spark changed the auto-generated alias name. To avoid this in the future, we could ask the user to specify explicit column names when creating a view. ### Why are the changes needed? Avoid compatible issue when querying a view ### Does this PR introduce _any_ user-facing change? Yes. User will get error when running query below after this change ``` CREATE OR REPLACE VIEW v AS SELECT CAST(t.a AS INT), to_date(t.b, 'yyyyMMdd') FROM t ``` ### How was this patch tested? not yet Closes #32832 from linhongliu-db/SPARK-35686-no-auto-alias. Authored-by: Linhong Liu <linhong.liu@databricks.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>		2021-07-01 12:47:38 +00:00
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main	[SPARK-35747][CORE] Avoid printing full Exception stack trace, if Hbase/Kafka/Hive services are not running in a secure cluster	2021-06-23 23:12:02 -07:00
test	[SPARK-35686][SQL] Not allow using auto-generated alias when creating view	2021-07-01 12:47:38 +00:00