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fix(telemetry): preserve driver error class and code in connection_test (#260)

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Native connector test failures were flattened to `new Error(message)`,
collapsing every driver's error class to `Error` and dropping `.code` /
`.number`. connection_test telemetry could therefore not tell a SQL Server
login rejection (ELOGIN / 18456) apart from a network or TLS error, and the
only field that varied was a raw message.

Connectors now return `connectorTestFailure(error)`, which preserves the
original driver error as `cause`, and `testNativeConnection` re-throws that
cause. `scrubErrorClass` then records the real class (e.g. ConnectionError)
and `formatErrorDetail` keeps the code prefix (e.g. "ELOGIN: ..."). The
helper is the single source of truth for the failure shape across all seven
native connectors. User-facing terminal output is unchanged.
This commit is contained in:
Andrey Avtomonov 2026-06-04 14:51:14 +02:00 • committed by GitHub
parent c2beaf7d55
commit ec7edf8f50
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10 changed files with 82 additions and 18 deletions
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6
packages/cli/src/connectors/snowflake/connector.ts
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@ -7,7 +7,9 @@ import { assertReadOnlySql, limitSqlForExecution } from '../../context/connectio
import { tryConstraintQuery } from '../../context/scan/constraint-discovery.js';
import { scopedTableNames } from '../../context/scan/table-ref.js';
import {
connectorTestFailure,
createKtxConnectorCapabilities,
type KtxConnectorTestResult,
type KtxColumnSampleInput,
type KtxColumnSampleResult,
type KtxColumnStatsInput,
@ -464,7 +466,7 @@ class SnowflakeSdkDriver implements KtxSnowflakeDriver {
await this.query('SELECT 1');
return { success: true };
} catch (error) {
return { success: false, error: error instanceof Error ? error.message : String(error) };
return connectorTestFailure(error);
}
}
@ -573,7 +575,7 @@ export class KtxSnowflakeScanConnector implements KtxScanConnector {
}
}
async testConnection(): Promise<{ success: boolean; error?: string }> {
async testConnection(): Promise<KtxConnectorTestResult> {
return this.getDriver().test();
}