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https://issues.apache.org/jira/browse/SPARK-30282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan reassigned SPARK-30282:
-----------------------------------
Assignee: Terry Kim
> UnresolvedV2Relation should be resolved to temp view first
> ----------------------------------------------------------
>
> Key: SPARK-30282
> URL: https://issues.apache.org/jira/browse/SPARK-30282
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Terry Kim
> Assignee: Terry Kim
> Priority: Major
>
> For the following v2 commands, _Analyzer.ResolveTables_ does not check
> against the temp views before resolving _UnresolvedV2Relation_, thus it
> always resolves _UnresolvedV2Relation_ to a table:
> * ALTER TABLE
> * DESCRIBE TABLE
> * SHOW TBLPROPERTIES
> Thus, in the following example, 't' will be resolved to a table, not a temp
> view:
> {code:java}
> sql("CREATE TEMPORARY VIEW t AS SELECT 2 AS i")
> sql("CREATE TABLE testcat.ns.t USING csv AS SELECT 1 AS i")
> sql("USE testcat.ns")
> sql("SHOW TBLPROPERTIES t") // 't' is resolved to a table
> {code}
> For V2 commands, if a table is resolved to a temp view, it should error out
> with a message that v2 command cannot handle temp views.
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