[jira] [Assigned] (SPARK-30094) Current namespace is not used during table resolution

["Wenchen Fan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-30094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan reassigned SPARK-30094:
-----------------------------------

    Assignee: Terry Kim

> Current namespace is not used during table resolution
> -----------------------------------------------------
>
>                 Key: SPARK-30094
>                 URL: https://issues.apache.org/jira/browse/SPARK-30094
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Terry Kim
>            Assignee: Terry Kim
>            Priority: Major
>
> The following example shows the scenario where the current namespace is not respected:
> {code:java}
> sql("CREATE TABLE testcat.t USING foo AS SELECT 1 AS id")
> sql("USE testcat")
> sql("SHOW CURRENT NAMESPACE").show
> +-------+---------+
> |catalog|namespace|
> +-------+---------+
> |testcat|         |
> +-------+---------+
> // `t` is resolved to `testcat.t`.
> sql("DESCRIBE t").show
> +---------------+---------+-------+
> |       col_name|data_type|comment|
> +---------------+---------+-------+
> |             id|      int|       |
> |               |         |       |
> | # Partitioning|         |       |
> |Not partitioned|         |       |
> +---------------+---------+-------+
> // Now create a table under `ns` namespace.
> sql("CREATE TABLE testcat.ns.t USING foo AS SELECT 1 AS id")
> sql("USE testcat.ns")
> sql("SHOW CURRENT NAMESPACE").show
> +-------+---------+
> |catalog|namespace|
> +-------+---------+
> |testcat|       ns|
> +-------+---------+
> // `t` is not resolved any longer since the current namespace `ns` is not used.
> sql("DESCRIBE t").show
> org.apache.spark.sql.AnalysisException: Invalid command: 't' is a view not a table.; line 1 pos 0;
> 'DescribeTable 'UnresolvedV2Relation [t], org.apache.spark.sql.connector.InMemoryTableCatalog@2c5ead80, `t`, false
> {code}



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