wegamekinglc / calc-flow

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Build # 34379051547

Build Type

push

github

Committed by web-flow

Commit Message

fix: preserve zero-column metadata rows (DAL-192) (#262)

Preserve row counts when normalizing Arrow metadata on zero-column inputs.
Use RecordBatch metadata replacement before recombining these inputs, while
retaining the existing buffer-sharing path for tables with columns.

Cover Table, RecordBatch and native Batch inputs, empty and populated inputs,
sync/async collection, iterable streams, caller metadata and resource cleanup.
Keep the stream regression below the existing complexity threshold and document
the corrected behavior.

Validated on head 760f071f6 against main
6a09e9233: 52 focused tests pass; the full
Python suite passes 1529 tests with 2 optional-feature skips and 95.25% coverage.
Final specialist review approves the change, and all 53 CI checks pass.

Closes DAL-192

Coverage Stats

9518 of 10098 relevant lines covered (94.26%)

0.94 hits per line