From 6f3bbaa83f8427cd5a637a3c5064c84c54c8d40e Mon Sep 17 00:00:00 2001
From: Yoav Cohen <yoav@satoricyber.com>
Date: Thu, 21 May 2026 18:40:15 +0200
Subject: [PATCH] Improve accuracy of
 supports_string_literal_concatenation_with_newline

---
 src/parser/mod.rs         | 9 +++++++++
 tests/sqlparser_common.rs | 8 ++++++++
 2 files changed, 17 insertions(+)

diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 91ac386ae..d5779489e 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -12184,6 +12184,15 @@ impl<'a> Parser<'a> {
                         after_newline = true;
                         self.next_token_no_skip();
                     }
+                    // Tokenizer includes the newline in the single line comment
+                    // so we need to check for it specifically here, otherwise the newline will
+                    // not be consumed as a separate token.
+                    Token::Whitespace(Whitespace::SingleLineComment { comment, .. }) => {
+                        if comment.ends_with('\n') {
+                            after_newline = true;
+                        }
+                        self.next_token_no_skip();
+                    }
                     Token::Whitespace(_) => {
                         self.next_token_no_skip();
                     }
diff --git a/tests/sqlparser_common.rs b/tests/sqlparser_common.rs
index f470b93ca..c248154b5 100644
--- a/tests/sqlparser_common.rs
+++ b/tests/sqlparser_common.rs
@@ -18356,6 +18356,14 @@ fn parse_adjacent_string_literal_concatenation() {
         -- COMMENT
         'd'
     )"#;
+    dialects.one_statement_parses_to(sql, "SELECT 'abc' IN ('abc', 'd')");
+
+        let sql = r#"
+    SELECT 'abc' in ('a'
+        'b' -- COMMENT
+        'c',
+        'd'
+    )"#;
     dialects.one_statement_parses_to(sql, "SELECT 'abc' IN ('abc', 'd')");
 }