MemCS Dictionary Encoded Layout support by insert_arrow
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Description
Product: Tarantool EE
Since: 3.7
MemCS now supports insertion of columns in dictionary encoded layout,
except for columns that participate in index keys.
Indexes must be of uint16 type - otherwise, an error is thrown.
Also, batches with Arrow Dictionary Encoded Layout are inserted
faster to columns with dict layout.
Requested by @drewdzzz in https://github.com/tarantool/tarantool-ee/commit/e79b8160eb5fd3771f6b37b8589a453cb18d1ae8.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the documentation for insert_arrow and dictionary-encoded layout. Document the supported insertion behavior, the exception for columns in index keys, the uint16 index requirement, and the faster path for dict-layout columns; the relevant documentation page is not named in the issue.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100