From 637b3bff76c3c207d49d0c220f4b8ee30accc615 Mon Sep 17 00:00:00 2001
From: ivan-parada <108550001+ivan-parada@users.noreply.github.com>
Date: Wed, 26 Jul 2023 03:41:23 -0600
Subject: [PATCH] return null when timestamp value is null instead of epoch
 default ts (#151)

* return null when timestamp value is null instead of epoch default ts

* Preserve null values when parsing arrow data

Signed-off-by: Levko Kravets <levko.ne@gmail.com>

---------

Signed-off-by: Levko Kravets <levko.ne@gmail.com>

Co-authored-by: Levko Kravets <levko.ne@gmail.com>
Signed-off-by: nithinkdb <nithin.krishnamurthi@databricks.com>
---
 lib/result/ArrowResult.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/result/ArrowResult.ts b/lib/result/ArrowResult.ts
index 5bf59ec4..1f497226 100644
--- a/lib/result/ArrowResult.ts
+++ b/lib/result/ArrowResult.ts
@@ -68,6 +68,10 @@ export default class ArrowResult implements IOperationResult {
   }
 
   private convertArrowTypes(value: any, valueType: DataType | undefined, fields: Array<ArrowSchemaField> = []): any {
+    if (value === null) {
+      return value;
+    }
+
     const fieldsMap: Record<string, ArrowSchemaField> = {};
     for (const field of fields) {
       fieldsMap[field.name] = field;