nihilist-narwhal a059c8e196 Repeated headers: number pivot fields and table columns in linear time ...

Each header was checked against every name before it, once per suffix
tried, so a source whose headers repeat (a row of thousands of equal
labels, such as check boxes) took cubic time: 4,000 columns took 28 s
in Recommended PivotTables, and a row of 16,384 hung the app, in
PivotTables, in Insert Table and in Get Data from Table/Range. Taken
names and the next suffix of each header are now kept in hash maps, in
the pivot source, in table creation and in the XLSX pivot cache; the
names are the same as before.

2026-10-10 03:05:48 -05:00

..

examples

Rename SheetCraft to GridCraft everywhere (crates, apps, bundle ids, packaging, docs)

2026-10-06 01:39:08 -04:00

src

Repeated headers: number pivot fields and table columns in linear time

2026-10-10 03:05:48 -05:00

Cargo.toml

Rename SheetCraft to GridCraft everywhere (crates, apps, bundle ids, packaging, docs)

2026-10-06 01:39:08 -04:00