Improve flat_object field parsing performance by reducing two passes …

…to a single pass (#16297)
opensearch-project · Jan 22, 2025 · 2794655 · 2794655
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -32,6 +32,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Support object fields in star-tree index([#16728](https://github.com/opensearch-project/OpenSearch/pull/16728/))
 - Support searching from doc_value using termQueryCaseInsensitive/termQuery in flat_object/keyword field([#16974](https://github.com/opensearch-project/OpenSearch/pull/16974/))
 - Added a new `time` field to replace the deprecated `getTime` field in `GetStats`. ([#17009](https://github.com/opensearch-project/OpenSearch/pull/17009))
+- Improve flat_object field parsing performance by reducing two passes to a single pass ([#16297](https://github.com/opensearch-project/OpenSearch/pull/16297))
 - Improve performance of the bitmap filtering([#16936](https://github.com/opensearch-project/OpenSearch/pull/16936/))
 
 ### Dependencies

diff --git a/server/src/main/java/org/opensearch/common/xcontent/JsonToStringXContentParser.java b/server/src/main/java/org/opensearch/common/xcontent/JsonToStringXContentParser.java