feat: Add subquery support in pipeline#2323

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cherylEnkidu wants to merge 26 commits intomainfrom

cheryl/subquery

Commits on Feb 20, 2026

save work
cherylEnkidu
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Commits on Feb 23, 2026

Commits on Feb 24, 2026

Commits on Feb 27, 2026

Commits on Mar 3, 2026

Test subcollection used within Union stage
cherylEnkidu
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Commits on Mar 5, 2026

replace mapGet with getField
cherylEnkidu
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Commits on Mar 11, 2026