Separate chunker from batcher#625
Merged
frankmcsherry merged 1 commit intoMay 28, 2026
Merged
Conversation
antiguru
force-pushed
the
explicit_chunker
branch
from
b559eb0 to
237a915
Compare
antiguru
force-pushed
the
explicit_chunker
branch
from
237a915 to
b477035
Compare
antiguru
force-pushed
the
explicit_chunker
branch
from
b477035 to
523a501
Compare
frankmcsherry
force-pushed
the
master-next
branch
from
ddfd05e to
1f348ab
Compare
The chunker was part of the batcher and responsible for transforming input data into the batcher's chunk format. Hence, the batcher needed to be aware of its input types, although it would not otherwise use this information. Drop the `Input` associated type and `push_container` method from the `Batcher` trait; batchers now accept already-chunked input via `PushInto<Self::Output>`. The vec `MergeBatcher` loses its `Input` and `C` (chunker) type parameters, and the columnar `MergeBatcher` loses its internal `TrieChunker`. Both now expose `PushInto` that inserts a chunk directly as a chain. Chunking moves into `arrange_core`, which gains a `Chu: ContainerBuilder` type parameter so callers supply a chunker that maps the stream's input container into the batcher's output container. The operator drives the chunker (push, extract, and a `finish` drain before sealing) where the batcher previously did. The `Arrange` trait constrains `Ba::Output = C` and hardcodes `ContainerChunker<C>` internally, so `.arrange::<Ba, Bu, Tr>()` callsites for `Vec`-based collections are unchanged. Callers needing a cross-container chunker (columnar layouts, interactive, spill) drop to `arrange_core` directly and pass an explicit `ValChunker`. Signed-off-by: Moritz Hoffmann <antiguru@gmail.com> Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
antiguru
force-pushed
the
explicit_chunker
branch
from
523a501 to
5fc079f
Compare
Merged
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
The chunker was part of the batcher and responsible for transforming input data into the batcher's chain format. Hence, the batcher needed to be aware of its input types, although it would not otherwise use this information.
This change drops the
InputandCtype parameters fromMergeBatcher, and theInputassociated type pluspush_containermethod from theBatchertrait. Batchers now accept chunks viaPushInto<Self::Output>. Chunking moves intoarrange_core, which gains aChu: ContainerBuildertype parameter so callers can supply a chunker that maps the stream's input container into the batcher's output container.The
Arrangetrait constrainsBa::Output = C(same-type chunker) and hardcodesContainerChunker<C>internally, so.arrange::<Ba, Bu, Tr>()callsites forVec-based collections are unchanged. Callers that need a cross-container chunker (columnar layouts, interactive) drop toarrange_coredirectly.Also updates
chainless_batcher::Batcherto the newBatchertrait shape.