fix(query): add correlated subquery support

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evalExpr was missing irekSubquery case — scalar subqueries in SELECT/WHERE
fell through to else:return "" producing empty strings. Add:
- irekSubquery handler in evalExpr that executes the subquery plan
- outerRow + subqueryPlan fields on ExecutionContext for correlation
- qualified column injection in execScan for correlated filter refs
- collectCorrelatedTablesFromPlan to discover outer table references

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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dimgigov

2026-05-19 23:16:31 +03:00

parent 14596c9584

commit edd7e728f9

2 changed files with 101 additions and 0 deletions

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tests/nimforum_smoke_test

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