fix: add VERSION to builtin function completion

Author: devadathanmb

pgcli/packages/pgliterals/pgliterals.json

@@ -439,6 +439,7 @@
         "TRUNC",
         "UNNEST",
         "UPPER",
+        "VERSION",
         "WIDTH",
         "WIDTH_BUCKET",
         "XMLAGG"

tests/test_naive_completion.py

@@ -49,6 +49,13 @@ def test_function_name_completion(completer, complete_event):
     ])
 
 
+def test_version_function_name_completion(completer, complete_event):
+    text = "SELECT VE"
+    position = len(text)
+    result = completions_to_set(completer.get_completions(Document(text=text, cursor_position=position), complete_event))
+    assert result == completions_to_set([Completion(text="VERSION", start_position=-2)])
+
+
 def test_column_name_completion(completer, complete_event):
     text = "SELECT  FROM users"
     position = len("SELECT ")

tests/test_smart_completion_public_schema_only.py

@@ -160,6 +160,12 @@ def test_builtin_function_name_completion(completer):
     ])
 
 
+@parametrize("completer", completers())
+def test_builtin_version_function_completion(completer):
+    result = get_result(completer, "SELECT VE")
+    assert completions_to_set(result) == completions_to_set([function("VERSION", -2)])
+
+
 @parametrize("completer", completers())
 def test_builtin_function_matches_only_at_start(completer):
     text = "SELECT IN"