fix(postgres): treat FULLTEXT and SPATIAL as unreserved identifiers

src/parser/mod.rs

@@ -9810,6 +9810,18 @@ impl<'a> Parser<'a> {
             None
         };
 
+        // Peek instead of consuming: FULLTEXT/SPATIAL are only table constraints in
+        // MySQL/Generic, so consuming them before confirming the dialect would break
+        // the column-name fallback in other dialects (e.g. PostgreSQL).
+        if name.is_none()
+            && self
+                .peek_one_of_keywords(&[Keyword::FULLTEXT, Keyword::SPATIAL])
+                .is_some()
+            && !dialect_of!(self is GenericDialect | MySqlDialect)
+        {
+            return Ok(None);
+        }
+
         let next_token = self.next_token();
         match next_token.token {
             Token::Word(w) if w.keyword == Keyword::UNIQUE => {

tests/sqlparser_postgres.rs

@@ -7107,6 +7107,32 @@ fn parse_alter_table_replica_identity() {
     }
 }
 
+#[test]
+fn parse_fulltext_as_column_name() {
+    match pg().verified_stmt("CREATE TABLE film (fulltext TSVECTOR NOT NULL)") {
+        Statement::CreateTable(CreateTable { columns, .. }) => {
+            assert_eq!(
+                columns,
+                vec![ColumnDef {
+                    name: "fulltext".into(),
+                    data_type: DataType::TsVector,
+                    options: vec![ColumnOptionDef {
+                        name: None,
+                        option: ColumnOption::NotNull,
+                    }],
+                }]
+            );
+        }
+        _ => unreachable!(),
+    }
+
+    pg().verified_stmt("CREATE TABLE geo (spatial TEXT NOT NULL)");
+
+    pg().verified_stmt("CREATE INDEX film_fulltext_idx ON film USING GIST (fulltext)");
+
+    pg().verified_stmt("CREATE INDEX geo_spatial_idx ON geo USING GIST (spatial)");
+}
+
 #[test]
 fn parse_ts_datatypes() {
     match pg_and_generic().verified_stmt("CREATE TABLE foo (x TSVECTOR)") {