[PHOENIX-3475] MetaData #getTables() API doesn't return view indexes

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Fix Version/s: 4.15.0
• Flags: Patch
• Assignee: Unassigned
• Reporter: Akshita Malhotra
• Created: 10/Nov/16 22:02
• Updated: 21/Dec/19 00:53
• Resolved: 08/Jan/19 21:00

Description

HBase migration tool uses DatabaseMetadata#getTables() API to retrieve the tables for copying data. We have found that API doesn't return base index tables ( IDX<base table name>)

For testing purposes, we issue following DDL to generate the view and the corresponding view index:
-CREATE VIEW IF NOT EXISTS MIGRATIONTEST_VIEW (OLD_VALUE_VIEW varchar) AS SELECT * FROM MIGRATIONTEST WHERE OLD_VALUE like 'E%'
-CREATE INDEX IF NOT EXISTS MIGRATIONTEST_VIEW_IDX ON MIGRATIONTEST_VIEW (OLD_VALUE_VIEW)

By using HBase API, we were able to confirm that base index table (_IDX_MIGRATIONTEST) is created.

Both jdbc DatabaseMetadata API and P* getMetaDataCache API doesn't seem to be returning view indexes. Also P*MetaData #getTableRef API return "TableNotFoundException" when attempted to fetch PTable corresponding to the base index table name.