fix(community): postgres indexes getTime returning NaN due to missing alias (#8720)

Author: hntrl

.changeset/hot-bugs-clap.md

@@ -0,0 +1,5 @@
+---
+"@langchain/community": patch
+---
+
+postgres indexes getTime returning NaN due to missing alias

libs/langchain-community/src/indexes/postgres.ts

@@ -69,7 +69,7 @@ export class PostgresRecordManager implements RecordManagerInterface {
 
   async getTime(): Promise<number> {
     const res = await this.pool.query(
-      "SELECT EXTRACT(EPOCH FROM CURRENT_TIMESTAMP)"
+      "SELECT EXTRACT(EPOCH FROM CURRENT_TIMESTAMP) AS extract"
     );
     return Number.parseFloat(res.rows[0].extract);
   }