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Reintegrate master into master-next
Ongoing `columnar` work
Tidying `reduce.rs`
* Use containers for interesting (keys, time) * Remove use of owned keys in reduce.rs * Remove all uses of KeyOwn * Remove KeyOwn * Improve documentation * Walk back overly prescriptive dogs^3 constraints
Remove TimelyStack, TStack layout, ColumnationChunker, ColInternalMerger, and all Col* type aliases (ColValSpine, ColKeySpine, ColValBuilder, etc.) from the codebase. The columnation crate dependency is retained. Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Track timely's Child changes * Tidy bounds * Absorb next wave of changes * Remove unused, and Arranged impls * Remove timestamp generic from Arranged * Standardize T for timestamps, Tr for traces * Correct local timely reference * Convert G generics to T * Remove as Timestamp prompts * Remove T generics bound by Tr * Remove Scope::clone calls * Further tightening of traits * Correct docs
* Bring core DD into line * Clean up examples and tests
* Example DDIR with SCC * Parse from concrete syntax * Further examples and improvements * Further improvements to track columnar * Move DDIR to its own crate Extract the DD IR interpreter into a `ddir/` crate, separating shared infrastructure (parse, IR, lower) from backend-specific rendering. - Split parse into `parse/applicative.rs` (.ddir) and `parse/pipe.rs` (.ddp) - Extract `ir.rs` (Node, Program, RowLike) from `lower.rs` - Move programs and examples from differential-dataflow/examples/ to ddir/ - Remove DDIR_DEBUG, DDIR_REACHABILITY, DDIR_PRINT env vars (use INSPECT) - Fix off-by-one in columnar harness timestamping - Unify inspect output format between vec and col backends - Update programs to output compact counts via arrange+inspect Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Optimized IR * Relocate to interactive/ * Further clean-up --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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