tree 4fef612e955afd6849a1b0d39ba46d40208d81ee
parent 4dddc37c2d9cc991e27024792d1154af6f335e1c
author Antoine Pitrou <antoine@python.org> 1672756097 +0100
committer GitHub <noreply@github.com> 1672756097 +0100
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PARQUET-2218: [Format] Clarify CRC computation (#188)

When trying to implement CRC computation in Parquet C++, we found the wording to be ambiguous.

Clarify that CRC computation happens on the exact binary serialization (instead of a long-winded and confusing elaboration about v1 and v2 data page layout).

Also, clarify that CRC computation can apply to all page kinds, not only data pages
(for reference, parquet-mr currently support checksumming v1 data pages as well as dictionary pages).

Also, see discussion on https://github.com/apache/parquet-format/pull/126#issuecomment-1348081137 and below.