Major fixes and new features

venv/lib/python3.12/site-packages/asyncpg/serverversion.py

@@ -0,0 +1,60 @@
+# Copyright (C) 2016-present the asyncpg authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of asyncpg and is released under
+# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
+
+
+import re
+
+from .types import ServerVersion
+
+version_regex = re.compile(
+    r"(Postgre[^\s]*)?\s*"
+    r"(?P<major>[0-9]+)\.?"
+    r"((?P<minor>[0-9]+)\.?)?"
+    r"(?P<micro>[0-9]+)?"
+    r"(?P<releaselevel>[a-z]+)?"
+    r"(?P<serial>[0-9]+)?"
+)
+
+
+def split_server_version_string(version_string):
+    version_match = version_regex.search(version_string)
+
+    if version_match is None:
+        raise ValueError(
+            "Unable to parse Postgres "
+            f'version from "{version_string}"'
+        )
+
+    version = version_match.groupdict()
+    for ver_key, ver_value in version.items():
+        # Cast all possible versions parts to int
+        try:
+            version[ver_key] = int(ver_value)
+        except (TypeError, ValueError):
+            pass
+
+    if version.get("major") < 10:
+        return ServerVersion(
+            version.get("major"),
+            version.get("minor") or 0,
+            version.get("micro") or 0,
+            version.get("releaselevel") or "final",
+            version.get("serial") or 0,
+        )
+
+    # Since PostgreSQL 10 the versioning scheme has changed.
+    # 10.x really means 10.0.x.  While parsing 10.1
+    # as (10, 1) may seem less confusing, in practice most
+    # version checks are written as version[:2], and we
+    # want to keep that behaviour consistent, i.e not fail
+    # a major version check due to a bugfix release.
+    return ServerVersion(
+        version.get("major"),
+        0,
+        version.get("minor") or 0,
+        version.get("releaselevel") or "final",
+        version.get("serial") or 0,
+    )