From 1e520f027fb2f7f121df8f8aa761cf9357952af2 Mon Sep 17 00:00:00 2001
From: Yoav Cohen <yoav@satoricyber.com>
Date: Sat, 1 Feb 2025 07:59:13 +0100
Subject: [PATCH] Do not parse ASOF and MATCH_CONDITION as table factor aliases

---
 src/keywords.rs              |  2 ++
 tests/sqlparser_snowflake.rs | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/keywords.rs b/src/keywords.rs
index 02ce04988..5937d7755 100644
--- a/src/keywords.rs
+++ b/src/keywords.rs
@@ -1000,6 +1000,8 @@ pub const RESERVED_FOR_TABLE_ALIAS: &[Keyword] = &[
     Keyword::ANTI,
     Keyword::SEMI,
     Keyword::RETURNING,
+    Keyword::ASOF,
+    Keyword::MATCH_CONDITION,
     // for MSSQL-specific OUTER APPLY (seems reserved in most dialects)
     Keyword::OUTER,
     Keyword::SET,
diff --git a/tests/sqlparser_snowflake.rs b/tests/sqlparser_snowflake.rs
index 1310b984f..1036ce1fa 100644
--- a/tests/sqlparser_snowflake.rs
+++ b/tests/sqlparser_snowflake.rs
@@ -2731,6 +2731,20 @@ fn asof_joins() {
               "ON s.state = p.state ",
           "ORDER BY s.observed",
     ));
+
+    // Test without explicit aliases
+    #[rustfmt::skip]
+    snowflake_and_generic().verified_query(concat!(
+        "SELECT * ",
+          "FROM snowtime ",
+            "ASOF JOIN raintime ",
+              "MATCH_CONDITION (snowtime.observed >= raintime.observed) ",
+              "ON snowtime.state = raintime.state ",
+            "ASOF JOIN preciptime ",
+              "MATCH_CONDITION (showtime.observed >= preciptime.observed) ",
+              "ON showtime.state = preciptime.state ",
+          "ORDER BY showtime.observed",
+    ));
 }
 
 #[test]