From 771c34c20fbfa68fb0402d9f7d072ff36f3dffb8 Mon Sep 17 00:00:00 2001
From: kudala-bharani <bunnykudala@gmail.com>
Date: Fri, 4 Sep 2026 17:21:54 -0400
Subject: [PATCH] Fix REFRESH statement type detection

Recognize REFRESH as a DDL keyword so materialized view refreshes report their statement type and honor keyword formatting. Cover supported query variants and leading comments with regressions for issue797.
---
 CHANGELOG                 |  3 ++-
 sqlparse/keywords.py      |  1 +
 tests/test_regressions.py | 19 +++++++++++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG b/CHANGELOG
index 44d5938e..afa8face 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,7 +1,8 @@
 Development Version
 -------------------
 
-Nothing yet.
+* Recognize REFRESH as a DDL keyword so that REFRESH MATERIALIZED VIEW
+  statements are detected and formatted correctly (issue797).
 
 
 Release 0.6.0 (Aug 13, 2026)
diff --git a/sqlparse/keywords.py b/sqlparse/keywords.py
index dd6e5d15..eac80fc5 100644
--- a/sqlparse/keywords.py
+++ b/sqlparse/keywords.py
@@ -568,6 +568,7 @@ def find_delimited_spans(text):
     'REF': tokens.Keyword,
     'REFERENCES': tokens.Keyword,
     'REFERENCING': tokens.Keyword,
+    'REFRESH': tokens.Keyword.DDL,
     'REINDEX': tokens.Keyword,
     'RELATIVE': tokens.Keyword,
     'RENAME': tokens.Keyword,
diff --git a/tests/test_regressions.py b/tests/test_regressions.py
index aca7f7b3..fbac9140 100644
--- a/tests/test_regressions.py
+++ b/tests/test_regressions.py
@@ -477,6 +477,25 @@ def test_materialized_view_issue752():
     assert formatted == 'CREATE MATERIALIZED VIEW v AS SELECT 1'
 
 
+@pytest.mark.parametrize('statement', [
+    'REFRESH MATERIALIZED VIEW order_summary;',
+    'refresh materialized view order_summary;',
+    'REFRESH MATERIALIZED VIEW CONCURRENTLY public.order_summary;',
+    'REFRESH MATERIALIZED VIEW order_summary WITH NO DATA;',
+    '-- update cached results\nREFRESH MATERIALIZED VIEW order_summary;',
+])
+def test_refresh_materialized_view_type_issue797(statement):
+    parsed = sqlparse.parse(statement)[0]
+    assert parsed.get_type() == 'REFRESH'
+    assert str(parsed) == statement
+
+
+def test_refresh_materialized_view_format_issue797():
+    formatted = sqlparse.format(
+        'refresh materialized view order_summary;', keyword_case='upper')
+    assert formatted == 'REFRESH MATERIALIZED VIEW order_summary;'
+
+
 @pytest.mark.parametrize('sql', [
     'a BETWEEN .03 AND .06',
     'a between .03 and .06',