From c341b98d8c056e710b47324250a11cd3534774ca Mon Sep 17 00:00:00 2001
From: Timothy Sullivan <tsullivan@elastic.co>
Date: Wed, 11 Dec 2019 17:25:40 -0700
Subject: [PATCH] fix query bug of empty array

---
 .../server/lib/generate_csv_search.ts                     | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/x-pack/legacy/plugins/reporting/export_types/csv_from_savedobject/server/lib/generate_csv_search.ts b/x-pack/legacy/plugins/reporting/export_types/csv_from_savedobject/server/lib/generate_csv_search.ts
index 9d6540d36fd8b..4c2e09cbf7db5 100644
--- a/x-pack/legacy/plugins/reporting/export_types/csv_from_savedobject/server/lib/generate_csv_search.ts
+++ b/x-pack/legacy/plugins/reporting/export_types/csv_from_savedobject/server/lib/generate_csv_search.ts
@@ -80,7 +80,7 @@ export async function generateCsvSearch(
 
   let payloadQuery: QueryFilter | undefined;
   let payloadSort: any[] = [];
-  let docValueFields: any[] = [];
+  let docValueFields: any[] | undefined;
   if (jobParams.post && jobParams.post.state) {
     ({
       post: {
@@ -118,7 +118,11 @@ export async function generateCsvSearch(
     }, {});
 
   if (indexPatternTimeField) {
-    docValueFields = [indexPatternTimeField].concat(docValueFields);
+    if (docValueFields) {
+      docValueFields = [indexPatternTimeField].concat(docValueFields);
+    } else {
+      docValueFields = [indexPatternTimeField];
+    }
   }
 
   const searchRequest: SearchRequest = {