Fix issue with ORDER BY case sensitivity, closes #405

src/python/txtai/database/sql/base.py

@@ -144,7 +144,7 @@ def tokenize(self, query):
         # Get position of clause keywords. For multi-term clauses, validate next token matches as well
         for x, token in enumerate(tokens):
             t = token.lower()
-            if t not in positions and t in SQL.CLAUSES and (t not in ["group", "order"] or (x + 1 < len(tokens) and tokens[x + 1] == "by")):
+            if t not in positions and t in SQL.CLAUSES and (t not in ["group", "order"] or (x + 1 < len(tokens) and tokens[x + 1].lower() == "by")):
                 positions[t] = x
 
         return (tokens, positions)

test/python/testdatabase/testsql.py

@@ -236,6 +236,14 @@ def testSimilar(self):
         self.assertSql("where", prefix + "where coalesce(similar('abc'), similar('abc'))", "coalesce(__SIMILAR__0, __SIMILAR__1)")
         self.assertSql("similar", prefix + "where coalesce(similar('abc'), similar('abc'))", [["abc"], ["abc"]])
 
+    def testUpper(self):
+        """
+        Tests SQL statements are case insensitive.
+        """
+
+        self.assertSql("groupby", "SELECT * FROM TXTAI WHERE a = 1 GROUP BY id", "s.id")
+        self.assertSql("orderby", "SELECT * FROM TXTAI WHERE a = 1 ORDER BY id", "s.id")
+
     def testWhereBasic(self):
         """
         Test basic where clauses