From 33f9c0fb35b2d91bc97b454676898f359a87f206 Mon Sep 17 00:00:00 2001
From: Ayman Elkfrawy <ayman@sigmacomputing.com>
Date: Tue, 21 Jul 2026 12:23:47 -0700
Subject: [PATCH] support databricks ! as synonym to not

---
 src/ast/operator.rs           | 2 +-
 src/dialect/databricks.rs     | 5 +++++
 tests/sqlparser_databricks.rs | 7 +++++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/ast/operator.rs b/src/ast/operator.rs
index 58c401f7d5..fecf40fafe 100644
--- a/src/ast/operator.rs
+++ b/src/ast/operator.rs
@@ -36,7 +36,7 @@ pub enum UnaryOperator {
     /// `@-@` Length or circumference (PostgreSQL/Redshift geometric operator)
     /// see <https://www.postgresql.org/docs/9.5/functions-geometry.html>
     AtDashAt,
-    /// Unary logical not operator: e.g. `! false` (Hive-specific)
+    /// Unary logical not operator: e.g. `!false`
     BangNot,
     /// Bitwise Not, e.g. `~9`
     BitwiseNot,
diff --git a/src/dialect/databricks.rs b/src/dialect/databricks.rs
index 18ee3e0aaf..b6defd1390 100644
--- a/src/dialect/databricks.rs
+++ b/src/dialect/databricks.rs
@@ -90,6 +90,11 @@ impl Dialect for DatabricksDialect {
         true
     }
 
+    /// See <https://docs.databricks.com/aws/en/sql/language-manual/functions/bangsign>
+    fn supports_bang_not_operator(&self) -> bool {
+        true
+    }
+
     /// See <https://docs.databricks.com/en/sql/language-manual/sql-ref-syntax-qry-select-groupby.html>
     fn supports_group_by_with_modifier(&self) -> bool {
         true
diff --git a/tests/sqlparser_databricks.rs b/tests/sqlparser_databricks.rs
index 3d2ca9d77f..8bcbd5cdc1 100644
--- a/tests/sqlparser_databricks.rs
+++ b/tests/sqlparser_databricks.rs
@@ -110,6 +110,13 @@ fn test_databricks_exists() {
     );
 }
 
+#[test]
+fn test_databricks_bang_not() {
+    databricks().verified_expr("!true");
+    databricks().verified_expr("!false");
+    databricks().verified_expr("!NULL");
+}
+
 #[test]
 fn test_databricks_lambdas() {
     #[rustfmt::skip]