"
The IndexInfo table tracks the secondary indexes that have already
been populated. Since our secondary index implementation is backed by
materialized views, we can virtualize that table so queries are
actually answered by built_views.
Fixes#3483
"
* 'built-indexes-virtual-reader/v2' of github.com:duarten/scylla:
tests/virtual_reader_test: Add test for built indexes virtual reader
db/system_keysace: Add virtual reader for IndexInfo table
db/system_keyspace: Explain that table_name is the keyspace in IndexInfo
index/secondary_index_manager: Expose index_table_name()
db/legacy_schema_migrator: Don't migrate indexes
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