(TESTING, NOT FOR MERGE) Skip decoding statistics - #8630
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Successor to alamb#54
Rationale
This PR is part of testing how much faster Parquet thrift decoding would be if/when we extended the APIs to skip parsing the portions that are not needed for query, specifically various statistics from the parquet footer metadata (aka column stats and encoding stats)
I do not intend to propose merging this (ever)
Changes:
Comment out decoding of statistics in metadata, to mimic the effect of actually implementing