From 9ea0325749913093a907a78dbba8c739fc42a697 Mon Sep 17 00:00:00 2001
From: LucaCappelletti94 <cappelletti.luca94@gmail.com>
Date: Wed, 11 Nov 2026 22:49:50 +0100
Subject: [PATCH] PostgreSQL: Support `TEXT SEARCH TEMPLATE` members in `ALTER
 EXTENSION`

---
 fuzz/fuzz_seeds/postgres_alter_extension.sql | 1 +
 src/ast/ddl.rs                               | 5 +++++
 src/parser/mod.rs                            | 4 ++++
 tests/sqlparser_postgres.rs                  | 2 ++
 4 files changed, 12 insertions(+)

diff --git a/fuzz/fuzz_seeds/postgres_alter_extension.sql b/fuzz/fuzz_seeds/postgres_alter_extension.sql
index 82276d2e49..1b8532c1de 100644
--- a/fuzz/fuzz_seeds/postgres_alter_extension.sql
+++ b/fuzz/fuzz_seeds/postgres_alter_extension.sql
@@ -17,3 +17,4 @@ ALTER EXTENSION citext DROP CONVERSION public.conv;
 ALTER EXTENSION citext ADD TEXT SEARCH CONFIGURATION public.cfg;
 ALTER EXTENSION citext ADD TEXT SEARCH DICTIONARY public.dict;
 ALTER EXTENSION citext DROP TEXT SEARCH PARSER public.pgrm;
+ALTER EXTENSION citext ADD TEXT SEARCH TEMPLATE public.tpl;
diff --git a/src/ast/ddl.rs b/src/ast/ddl.rs
index bbe8880b73..72f233b936 100644
--- a/src/ast/ddl.rs
+++ b/src/ast/ddl.rs
@@ -4961,6 +4961,8 @@ pub enum AlterExtensionMember {
     TextSearchDictionary(ObjectName),
     /// `TEXT SEARCH PARSER object_name`
     TextSearchParser(ObjectName),
+    /// `TEXT SEARCH TEMPLATE object_name`
+    TextSearchTemplate(ObjectName),
     /// `VIEW object_name`
     View(ObjectName),
 }
@@ -5014,6 +5016,9 @@ impl fmt::Display for AlterExtensionMember {
                 write!(f, "TEXT SEARCH DICTIONARY {name}")
             }
             AlterExtensionMember::TextSearchParser(name) => write!(f, "TEXT SEARCH PARSER {name}"),
+            AlterExtensionMember::TextSearchTemplate(name) => {
+                write!(f, "TEXT SEARCH TEMPLATE {name}")
+            }
             AlterExtensionMember::View(name) => write!(f, "VIEW {name}"),
         }
     }
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 3ac5adb95b..9adf373585 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -12595,6 +12595,10 @@ impl<'a> Parser<'a> {
             Ok(AlterExtensionMember::TextSearchParser(
                 self.parse_object_name(false)?,
             ))
+        } else if self.parse_keywords(&[Keyword::TEXT, Keyword::SEARCH, Keyword::TEMPLATE]) {
+            Ok(AlterExtensionMember::TextSearchTemplate(
+                self.parse_object_name(false)?,
+            ))
         } else if self.parse_keyword(Keyword::VIEW) {
             Ok(AlterExtensionMember::View(self.parse_object_name(false)?))
         } else {
diff --git a/tests/sqlparser_postgres.rs b/tests/sqlparser_postgres.rs
index 617cec1ae4..f1a52892c1 100644
--- a/tests/sqlparser_postgres.rs
+++ b/tests/sqlparser_postgres.rs
@@ -13547,6 +13547,7 @@ fn alter_extension_member_round_trip_forms(action: &str) {
         format!("ALTER EXTENSION ext_name {action} TEXT SEARCH CONFIGURATION cfg"),
         format!("ALTER EXTENSION ext_name {action} TEXT SEARCH DICTIONARY dict"),
         format!("ALTER EXTENSION ext_name {action} TEXT SEARCH PARSER pgrm"),
+        format!("ALTER EXTENSION ext_name {action} TEXT SEARCH TEMPLATE tpl"),
         format!("ALTER EXTENSION ext_name {action} VIEW v"),
     ];
     for sql in sqls {
@@ -13739,6 +13740,7 @@ fn parse_alter_extension_add_member() {
         "TEXT SEARCH CONFIGURATION",
         "TEXT SEARCH DICTIONARY",
         "TEXT SEARCH PARSER",
+        "TEXT SEARCH TEMPLATE",
         "VIEW",
     ] {
         let sql = format!("ALTER EXTENSION ext_name ADD {member}");