Vihang Karajgaonkar created IMPALA-9325:
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Summary: Describe statement fails if its a Hive Materialized view
Key: IMPALA-9325
URL: https://issues.apache.org/jira/browse/IMPALA-9325
Project: IMPALA
Issue Type: Bug
Affects Versions: Impala 3.4.0
Reporter: Vihang Karajgaonkar
Assignee: Vihang Karajgaonkar
Based on what I see here
[https://github.com/apache/impala/blob/master/fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java#L349]
Impala treats Hive's materialized views as views.
However, when we issue describe statement on a materialized in catalog-v2 mode
(--use-local-catalog=true) we see the following exception:
Error: LocalCatalogException: Could not load partition names for table
default.mv3 CAUSED BY: TException: Invalid response from catalogd for request
TGetPartialCatalogObjectRequest(protocol_version:V1,
object_desc:TCatalogObject(type:TABLE, catalog_version:16,
table:TTable(db_name:default, tbl_name:mv3)),
table_info_selector:TTableInfoSelector(want_hms_table:false,
want_partition_names:true, want_partition_metadata:false,
want_partition_files:false, want_partition_stats:false,
want_table_constraints:false)): missing partition list result
We should either have a more user-friendly error message are treat it as a View
until we add a full support to materialized views.
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