Scoutdb aggregation and filter pushdown optimizations#1

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bendischinger wants to merge 9 commits intomainfrom

Commits on Feb 20, 2026

Improve pushdown optimization in analyzer
bendischinger
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Commits on Mar 4, 2026

feat: implement aggregate pushdown optimization
bendischinger
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Commits on Mar 5, 2026

handle string literal column names in partition aggregation
bendischinger
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Commits on Mar 9, 2026

Commits on Mar 10, 2026

Fix aggregation pushdown merging type handling
bendischinger
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Commits on Mar 12, 2026

Commits on Mar 20, 2026

Update AGGPUSHDOWN.md
bendischinger
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