Initial commit. Basic models mostly done.

venv/lib/python3.8/site-packages/django/db/models/sql/constants.py

@@ -0,0 +1,27 @@
+"""
+Constants specific to the SQL storage portion of the ORM.
+"""
+
+import re
+
+# Size of each "chunk" for get_iterator calls.
+# Larger values are slightly faster at the expense of more storage space.
+GET_ITERATOR_CHUNK_SIZE = 100
+
+# Namedtuples for sql.* internal use.
+
+# How many results to expect from a cursor.execute call
+MULTI = 'multi'
+SINGLE = 'single'
+CURSOR = 'cursor'
+NO_RESULTS = 'no results'
+
+ORDER_PATTERN = re.compile(r'\?|[-+]?[.\w]+$')
+ORDER_DIR = {
+    'ASC': ('ASC', 'DESC'),
+    'DESC': ('DESC', 'ASC'),
+}
+
+# SQL join types.
+INNER = 'INNER JOIN'
+LOUTER = 'LEFT OUTER JOIN'