remove quoting on uppercase-identifier completions

Mandatory quoting is retained for identifiers which have any
non-alphanumeric characters, but an uppercase character alone does
not activate the suggested quoting.

Author: rolandwalker

changelog.md

@@ -1,6 +1,11 @@
 TBD
 ==============
 
+Features
+--------
+* Remove suggested quoting on completions for identifiers with uppercase.
+
+
 Bug Fixes
 --------
 * Fix CamelCase fuzzy matching.

mycli/sqlcompleter.py

@@ -777,7 +777,7 @@ def __init__(
         self.reserved_words = set()
         for x in self.keywords:
             self.reserved_words.update(x.split())
-        self.name_pattern = re.compile(r"^[_a-z][_a-z0-9\$]*$")
+        self.name_pattern = re.compile(r"^[_a-zA-Z][_a-zA-Z0-9\$]*$")
 
         self.special_commands: list[str] = []
         self.table_formats = supported_formats

test/test_smart_completion_public_schema_only.py

@@ -433,7 +433,7 @@ def test_auto_escaped_col_names(completer, complete_event):
         Completion(text="*", start_position=0),
         Completion(text="id", start_position=0),
         Completion(text="`insert`", start_position=0),
-        Completion(text="`ABC`", start_position=0),
+        Completion(text="ABC", start_position=0),
     ] + list(map(Completion, completer.functions)) + [Completion(text="select", start_position=0)] + list(
         map(Completion, completer.keywords)
     )
@@ -448,7 +448,7 @@ def test_un_escaped_table_names(completer, complete_event):
             Completion(text="*", start_position=0),
             Completion(text="id", start_position=0),
             Completion(text="`insert`", start_position=0),
-            Completion(text="`ABC`", start_position=0),
+            Completion(text="ABC", start_position=0),
         ]
         + list(map(Completion, completer.functions))
         + [Completion(text="réveillé", start_position=0)]