Allow SHOW VARIABLES for Snowflake dialect

Author: Vedin

src/parser/mod.rs

@@ -12451,7 +12451,7 @@ impl<'a> Parser<'a> {
         } else if self.parse_keyword(Keyword::COLLATION) {
             Ok(self.parse_show_collation()?)
         } else if self.parse_keyword(Keyword::VARIABLES)
-            && dialect_of!(self is MySqlDialect | GenericDialect)
+            && dialect_of!(self is MySqlDialect | GenericDialect | SnowflakeDialect)
         {
             Ok(Statement::ShowVariables {
                 filter: self.parse_show_statement_filter()?,

tests/sqlparser_snowflake.rs

@@ -47,7 +47,8 @@ fn test_snowflake_create_table() {
 #[test]
 fn test_snowflake_create_table_timestamp_ntz_precision_ctas_values() {
     let sql = "CREATE TABLE t (x TIMESTAMP_NTZ(3)) AS SELECT * FROM VALUES ('2025-04-09T21:11:23')";
-    let canonical = "CREATE TABLE t (x TIMESTAMP_NTZ) AS SELECT * FROM (VALUES ('2025-04-09T21:11:23'))";
+    let canonical =
+        "CREATE TABLE t (x TIMESTAMP_NTZ) AS SELECT * FROM (VALUES ('2025-04-09T21:11:23'))";
     snowflake().one_statement_parses_to(sql, canonical);
 }