Compression of FeatureRows collection in memory #798
Merged
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What this PR does / why we need it:
Recently we changed BigQuery writes to use BatchLoad method to be able to update table schema in-flight. In order to produce "successful inserts" output for metrics calculation we keep in memory all FeatureRows until BigQuery load job succeed.
To use memory more efficient this PR proposes to compress FeatureRows that awaiting for bq job to finish by converting them from row-orientation into column-orientation and using generic compression on those columns.
Which issue(s) this PR fixes:
Fixes #
Does this PR introduce a user-facing change?: