deepakpanda93 commented on issue #17068:
URL: https://github.com/apache/hudi/issues/17068#issuecomment-5393975215
This is done - closing, with a note on which PR did it, since there are two
linked here and only one merged.
**#19650 is the one that closed this.** It merged to `asf-site` on
2026-08-24 and its description opens with
"Closes #17068. (JIRA: HUDI-9550.)"
Checking the published page rather than relying on the merge, all four items
from the description are now live in
`website/learn/tech-specs.md`:
| item | where |
|---|---|
| internal `indexVersion` field | `:500-501` - *"`version` holds a
`HoodieIndexVersion`, an index-level attribute introduced in table version 9"* |
| new SI partition scheme | `:592-594`, `:605` - delimiter and escaping
rules, keyed off `HoodieIndexVersion` |
| null value handling | `:594` (null character escaping), `:423` |
| upgrade/downgrade dropping indexes | `:521` *"Table Upgrade and
Downgrade"*, `:532` *"Dropped indexes have to be rebuilt after the downgrade."*
|
Worth recording one thing that came out of writing it: the page did not just
omit the V2 partition scheme, it
described it **backwards** - stating that V2 shards by primary key and makes
secondary-key range scans worse, when
`MetadataPartitionType#getFileGroupMappingFunction` and
`HoodieTableMetadataUtil#getSecondaryKeyToFileGroupMappingFunction` show the
opposite. That correction is the more
valuable half of the change.
Since it merged to `asf-site` it is already published rather than waiting on
a release.
**#13713 still needs its own decision** - it is broader than this ticket
("Index related doc update for hudi 1.1"),
so closing this issue should not be taken as retiring that PR.
Closing.
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