Benjamin Lerer created CASSANDRA-14512:
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Summary: DESCRIBE behavior is broken for Virtual Keyspaces/Tables
(CQLSH)
Key: CASSANDRA-14512
URL: https://issues.apache.org/jira/browse/CASSANDRA-14512
Project: Cassandra
Issue Type: Bug
Reporter: Benjamin Lerer
Assignee: Benjamin Lerer
The {{DESCRIBE}} command in CQLSH does not work properly for virtual
keyspaces/tables.
# For the {{DESCRIBE KEYSPACES}} the virtual keyspaces are correctly added to
the list but for {{DESCRIBE TABLES}} only the non virtual tables are displayed.
# {{DESCRIBE system_views}} return the error: {{'system_views' not found in
keyspaces}}. Similar error for {{DESCRIBE system_virtual_schema}}.
# {{DESCRIBE KEYSPACE system_views}} or {{DESCRIBE KEYSPACE
system_virtual_schema}} return the error: {{'NoneType' object has no attribute
'export_for_schema'}}
The {{DESCRIBE TABLE}} command works fine but the output might be confusing as
it is a {{CREATE}} statement.
{code}
cqlsh> DESCRIBE TABLE system_virtual_schema.tables;
CREATE TABLE system_virtual_schema.tables (
comment text,
keyspace_name text,
table_name text,
PRIMARY KEY (keyspace_name, table_name)
) WITH CLUSTERING ORDER BY (table_name ASC)
AND compaction = {'class': 'None'}
AND compression = {};
{code}
I would be in favor or replacing the {{CREATE TABLE}} by a {{VIRTUAL TABLE}}.
[~cnlwsu], [~iamaleksey] What do you think?
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