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@LantaoJin LantaoJin commented Jan 26, 2026

Description

This PR is a pushdown optimization for #5025, which introduce array/collect Calcite aggregation.

Related Issues

Resolves #5070

Check List

  • New functionality includes testing.
  • New functionality has been documented.
  • New functionality has javadoc added.
  • New functionality has a user manual doc added.
  • New PPL command checklist all confirmed.
  • API changes companion pull request created.
  • Commits are signed per the DCO using --signoff or -s.
  • Public documentation issue/PR created.

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Signed-off-by: Lantao Jin <ltjin@amazon.com>
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@LantaoJin LantaoJin added the enhancement New feature or request label Jan 26, 2026
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This PR includes duplicated logic of #5025, which is required to rebase after 5025 merged.

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[FEATURE] Support pushdown collect/array_agg aggregation

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