From ae4c817a77ae6aa99fd0602ce5eb8e0c2df623b2 Mon Sep 17 00:00:00 2001
From: Ebrahim Byagowi <ebrahim@gnu.org>
Date: Sun, 21 Jul 2024 07:29:05 +0330
Subject: [PATCH] Add Persian stem token filter

Signed-off-by: Ebrahim Byagowi <ebrahim@gnu.org>
---
 CHANGELOG.md                       |  1 +
 spec/schemas/_common.analysis.yaml | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d4e347b0..a272a1e44 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -49,6 +49,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Added `is_hidden` to `/{index}/_alias/{name}` and `/{index}/_aliases/{name}` ([#429](https://github.com/opensearch-project/opensearch-api-specification/pull/429))
 - Added `ignore_unmapped` to `GeoDistanceQuery` ([#427](https://github.com/opensearch-project/opensearch-api-specification/pull/427))
 - Added missing variants of `indices.put_alias` ([#434](https://github.com/opensearch-project/opensearch-api-specification/pull/434)) 
+- Added `persian_stem` filter ([#444](https://github.com/opensearch-project/opensearch-api-specification))
 
 ### Changed
 
diff --git a/spec/schemas/_common.analysis.yaml b/spec/schemas/_common.analysis.yaml
index e917bf0d0..15b9dc7d4 100644
--- a/spec/schemas/_common.analysis.yaml
+++ b/spec/schemas/_common.analysis.yaml
@@ -894,6 +894,17 @@ components:
           required:
             - pattern
             - type
+    PersianStemTokenFilter:
+      allOf:
+        - $ref: '#/components/schemas/TokenFilterBase'
+        - type: object
+          properties:
+            type:
+              type: string
+              enum:
+                - persian_stem
+          required:
+            - type
     PorterStemTokenFilter:
       allOf:
         - $ref: '#/components/schemas/TokenFilterBase'