[SEA-NodeJS] (5/9) executeStatement + openSession (sessionConfig, initialCatalog/Schema)#382
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[SEA-NodeJS] (5/9) executeStatement + openSession (sessionConfig, initialCatalog/Schema)#382msrathore-db wants to merge 8 commits into
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Creates the napi-rs binding skeleton: Cargo.toml + lib.rs + module stubs for database/connection/statement/result/error/logger. Captures napi-rs tokio Handle via OnceCell in runtime.rs. Single working #[napi] fn version() proves the binding loads + executes end-to-end in Node. Depends on krn-async-public-api branch (path dep on kernel). Round 2 will add open/execute/fetch methods.
…kend Refactors DBSQLClient/Session/Operation to dispatch through three backend interfaces. ThriftBackend (lib/thrift-backend/) contains the relocated existing thrift logic. SeaBackend (lib/sea/) is a stub for M0; the sea-napi-binding feature wires the real impl. Public surface (lib/index.ts) unchanged. No new dependencies. All existing tests pass. Files: - lib/contracts/IBackend.ts (new) - lib/contracts/ISessionBackend.ts (new) - lib/contracts/IOperationBackend.ts (new) - lib/contracts/IDBSQLClient.ts (adds useSEA?: boolean to ConnectionOptions) - lib/thrift-backend/ThriftBackend.ts (new) - lib/thrift-backend/ThriftSessionBackend.ts (new) - lib/thrift-backend/ThriftOperationBackend.ts (new) - lib/sea/SeaBackend.ts (new, M0 stub) - lib/DBSQLClient.ts (dispatch through IBackend; useSEA picks SeaBackend) - lib/DBSQLSession.ts (facade over ISessionBackend; staging stays here) - lib/DBSQLOperation.ts (facade over IOperationBackend; iterators/fetchAll stay here) - tests/unit/DBSQLClient.test.ts (retarget internal state lookup through backend; pre-seed client.backend in tests that bypass connect()) - tests/unit/DBSQLOperation.test.ts (retarget internal state lookup through backend)
Single mapping function in lib/sea/SeaErrorMapping.ts converts the napi-binding's surfaced kernel error (code+message+sqlstate) to the appropriate existing JS error class. M0 minimum: PAT auth errors land as AuthenticationError; cancel/timeout as OperationStateError; network/internal as HiveDriverError. SQLSTATE preserved on the error object via .sqlState property. No new error classes. M1 may add nuance.
…wired
Adds real async methods on the opaque wrappers backing M0:
- openSession (free function) with PAT → kernel Session
- Connection::execute_statement → kernel ExecutedStatement
- Statement::fetch_next_batch / schema / cancel / close → kernel ResultStream
- Arrow batches returned as IPC bytes (per Layer 2 design)
- Error mapping preserves kernel ErrorCode + SQLSTATE for TS layer
- All entry points wrapped in catch_unwind
End-to-end smoke test against pecotesting passes.
No new dependencies beyond arrow-{ipc,array,schema} + futures.
Uses kernel async public API (no block_on).
Co-authored-by: Isaac
SeaSessionBackend wraps the napi Connection handle. executeStatement passes through to napi.executeStatement and returns an IOperationBackend (SeaOperationBackend in sea-results feature). Session config + initialCatalog/initialSchema flow to napi openSession. M0 stops at executeStatement; metadata methods + per-stmt overrides defer to M1. No new dependencies. Reuses existing ConnectionOptions / Session config shapes. Co-authored-by: Isaac
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Summary
Implements `SeaSessionBackend.executeStatement()` and `openSession()` — the core SEA execution surface. Honors `sessionConfig`, `initialCatalog`, `initialSchema` on connect.
Stack position
PR 5/9. M0 e2e at 535ms vs pecotesting; runAsync polling is internal to the kernel.