StatisticsV2: statistics framework redesign for Datafusion #57
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Rationale for this change
https://synnada.notion.site/Redesigning-and-Enhancing-the-Statistics-Framework-in-Datafusion-16bf46d2dab180448272dbbd1d1f7cea
What changes are included in this PR?
This patch introduces a Statistics v.2 framework with following main points:
Are these changes tested?
Unit-tests are included
TODO: integration tests.