fix(merge): partition pruning, EXPLAIN routing, and data-loss fix on the MERGE path (rebased)#134

Merged

rampage644 merged 8 commits intomainfrom

claude/rebase-pr-126-i2t0U

Apr 23, 2026

Commits on Apr 23, 2026

fix(custom_type_coercion): fall back to plan.schema() for leaf nodes

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feat(merge): route EXPLAIN / EXPLAIN ANALYZE into the MERGE planner

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feat(merge): expose updated/inserted/deleted row counts as MetricsSet

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fix(merge): preserve target rows when MERGE batch contains only target

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style: apply rustfmt after rebase on main
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style(merge): collapse nested if into let-chain for EXPLAIN MERGE route
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test(merge): normalize RoundRobinBatch fan-out in EXPLAIN snapshots
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ci: re-trigger clippy after transient actions/checkout HTTP 500

rampage644
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claude
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