doc: design for columnar dataflow edge migration#37744

Draft

antiguru wants to merge 20 commits into

MaterializeInc:mainfrom

antiguru:moritz/columns-migration-spec

Commits on Jul 20, 2026

Commits on Jul 21, 2026

doc: producer output uses ConsolidatingColumnBuilder

antiguru
and
claude
committed
doc: producer rule is ConsolidatingColumnBuilder with an owned give

antiguru
and
claude
committed
doc: track ref/permutation consolidating builder as a fast-follow

antiguru
and
claude
committed
doc: drop P3, ArrangeBy passthrough subsumed by C1+P1

antiguru
and
claude
committed
doc: reframe P5 as shared as_specific_collection materialization; P8 subsumed

antiguru
and
claude
committed
doc: P5 materialization is a consumer read, use borrowed ColumnBuilder

antiguru
and
claude
committed
doc: P7 linear-join output encoding (mz_join_core stays Vec)

antiguru
and
claude
committed
doc: delta join output is a leaf-encode, not a half_join CB flip

antiguru
and
claude
committed
doc: expand teardown per pre-teardown review (GO)

antiguru
and
claude
committed
doc: insert Tp (LetRec re-encode) before Td

antiguru
and
claude
committed
doc: capture the three fast-follows in a dedicated section

antiguru
and
claude
committed

Commits on Jul 22, 2026

doc: correct P6 builder to plain ColumnBuilder (borrowed)

antiguru
and
claude
committed