thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-12-15 19:02:04 +00:00
Code Issues Packages Projects Releases Wiki Activity
a24a76828e
ClickHouse/src/Storages/MergeTree/tests
History
Nicolae Vartolomei af76ff1dbf RFC: Add metadata section to MergeTreeWriteAheadLog 
Current WAL format doesn't seem to be extendable without breaking
reverse compatibility.

This PR proposes to introduces a metadata section
for each action in the WAL to which optional fields can be added.

Adding new fields is trivial and doesn't have to break backwards
compatibility if these are not critical for correctness.

Metadata contains the minimum version of the reader allowed
to interpret it.

Removing fields is not supported.
2020-10-19 12:16:31 +01:00
..
CMakeLists.txt RFC: Add metadata section to MergeTreeWriteAheadLog 2020-10-19 12:16:31 +01:00
wal_action_metadata.cpp RFC: Add metadata section to MergeTreeWriteAheadLog 2020-10-19 12:16:31 +01:00