From 46c5deb58062416ae3562717e56758d3c21cce89 Mon Sep 17 00:00:00 2001
From: Martin Hilton <mhilton@influxdata.com>
Date: Wed, 13 Mar 2024 16:05:41 +0000
Subject: [PATCH] feat: limit the time period used in tag values queries

Add a time interval limit when populating a tag values menu, this
is to avoid the need to process the entire measurement.
---
 src/dataExplorer/context/tags.tsx    | 3 ++-
 src/shared/constants/queryBuilder.ts | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/dataExplorer/context/tags.tsx b/src/dataExplorer/context/tags.tsx
index 2b25ffce2a..a5ac7f1623 100644
--- a/src/dataExplorer/context/tags.tsx
+++ b/src/dataExplorer/context/tags.tsx
@@ -8,7 +8,7 @@ import {
   CACHING_REQUIRED_END_DATE,
   CACHING_REQUIRED_START_DATE,
 } from 'src/utils/datetime/constants'
-import {DEFAULT_LIMIT} from 'src/shared/constants/queryBuilder'
+import {DEFAULT_INTERVAL, DEFAULT_LIMIT} from 'src/shared/constants/queryBuilder'
 import {LanguageType} from 'src/dataExplorer/components/resources'
 
 // Contexts
@@ -214,6 +214,7 @@ export const TagsProvider: FC<Prop> = ({children, scope}) => {
       const queryTextSQL: string = `
         SELECT DISTINCT("${tagKey}")
         FROM "${measurement}"
+        WHERE time < NOW() AND time >= NOW() - INTERVAL '${DEFAULT_INTERVAL}'
         ORDER BY "${tagKey}"
         LIMIT ${DEFAULT_LIMIT}
       `
diff --git a/src/shared/constants/queryBuilder.ts b/src/shared/constants/queryBuilder.ts
index 8ad664f989..367ca7ce2d 100644
--- a/src/shared/constants/queryBuilder.ts
+++ b/src/shared/constants/queryBuilder.ts
@@ -1 +1,2 @@
 export const DEFAULT_LIMIT = 1000
+export const DEFAULT_INTERVAL = '1 day'