Initial open-source release

packages/connector-postgres/src/historic-sql-query-client.ts

@@ -0,0 +1,37 @@
+import type { KloPostgresQueryClient } from '@klo/context/ingest';
+import { KloPostgresScanConnector, type KloPostgresScanConnectorOptions } from './connector.js';
+
+export type KloPostgresHistoricSqlQueryClientOptions = KloPostgresScanConnectorOptions;
+
+export class KloPostgresHistoricSqlQueryClient implements KloPostgresQueryClient {
+  private readonly connectionId: string;
+  private readonly connector: KloPostgresScanConnector;
+
+  constructor(options: KloPostgresHistoricSqlQueryClientOptions) {
+    this.connectionId = options.connectionId;
+    this.connector = new KloPostgresScanConnector(options);
+  }
+
+  async executeQuery(
+    sql: string,
+    params?: unknown[],
+  ): Promise<{ headers: string[]; rows: unknown[][]; totalRows: number }> {
+    const result = await this.connector.executeReadOnly(
+      {
+        connectionId: this.connectionId,
+        sql,
+        params,
+      },
+      {} as never,
+    );
+    return {
+      headers: result.headers,
+      rows: result.rows,
+      totalRows: result.totalRows,
+    };
+  }
+
+  async cleanup(): Promise<void> {
+    await this.connector.cleanup();
+  }
+}