Remove batcher from Trace #544
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There is no inherent reason a trace must know about a batcher, other than convenience. This change factors the batcher out of the trace and moves it to an explicit type parameter where necessary. Signed-off-by: Moritz Hoffmann <[email protected]>
frankmcsherry
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Dec 5, 2024
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This looks great! It does call out that we'll probably eventually want to end up with a bundle of joint opinions, like perhaps KeyArrange<...> and ValArrange<...> that tie together the batcher, builder, and trace. But .. great to first decouple the components, and then loosely re-couple them through some non-binding opinions.
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Update Timely and Differential dependencies. Most of the changes come from TimelyDataflow/differential-dataflow#544. <!-- Describe the contents of the PR briefly but completely. If you write detailed commit messages, it is acceptable to copy/paste them here, or write "see commit messages for details." If there is only one commit in the PR, GitHub will have already added its commit message above. --> ### Motivation <!-- Which of the following best describes the motivation behind this PR? * This PR fixes a recognized bug. [Ensure issue is linked somewhere.] * This PR adds a known-desirable feature. [Ensure issue is linked somewhere.] * This PR fixes a previously unreported bug. [Describe the bug in detail, as if you were filing a bug report.] * This PR adds a feature that has not yet been specified. [Write a brief specification for the feature, including justification for its inclusion in Materialize, as if you were writing the original feature specification.] * This PR refactors existing code. [Describe what was wrong with the existing code, if it is not obvious.] --> ### Tips for reviewer <!-- Leave some tips for your reviewer, like: * The diff is much smaller if viewed with whitespace hidden. * [Some function/module/file] deserves extra attention. * [Some function/module/file] is pure code movement and only needs a skim. Delete this section if no tips. --> ### Checklist - [ ] This PR has adequate test coverage / QA involvement has been duly considered. - [ ] This PR has an associated up-to-date [design doc](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/design/README.md), is a design doc ([template](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/design/00000000_template.md)), or is sufficiently small to not require a design. <!-- Reference the design in the description. --> - [ ] If this PR evolves [an existing `$T ⇔ Proto$T` mapping](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/command-and-response-binary-encoding.md) (possibly in a backwards-incompatible way), then it is tagged with a `T-proto` label. - [ ] If this PR will require changes to cloud orchestration or tests, there is a companion cloud PR to account for those changes that is tagged with the release-blocker label ([example](MaterializeInc/cloud#5021)). <!-- Ask in #team-cloud on Slack if you need help preparing the cloud PR. --> - [ ] This PR includes the following [user-facing behavior changes](https://github.com/MaterializeInc/materialize/blob/main/doc/developer/guide-changes.md#what-changes-require-a-release-note): - <!-- Add release notes here or explicitly state that there are no user-facing behavior changes. --> Signed-off-by: Moritz Hoffmann <[email protected]>
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There is no inherent reason a trace must know about a batcher, other than convenience. This change factors the batcher out of the trace and moves it to an explicit type parameter where necessary.