Added support for Timescale and Timescale (GIS)

Timescale is a Postgres based database for time series data and it's
supported via the django-timescaledb package.

[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

README.rst

@@ -26,7 +26,7 @@ Supported Databases
 -------------------
 
 Support currently exists for PostgreSQL, PostGIS, MySQL, MySQL (GIS),
-Oracle, Oracle (GIS), Redshift, CockroachDB, and SQLite.
+Oracle, Oracle (GIS), Redshift, CockroachDB, Timescale, Timescale (GIS) and SQLite.
 
 Installation
 ------------
@@ -88,33 +88,37 @@ and should instead be passed as::
 URL schema
 ----------
 
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| Engine      | Django Backend                                | URL                                              |
-+=============+===============================================+==================================================+
-| PostgreSQL  | ``django.db.backends.postgresql`` [1]_        | ``postgres://USER:PASSWORD@HOST:PORT/NAME`` [2]_ |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| PostGIS     | ``django.contrib.gis.db.backends.postgis``    | ``postgis://USER:PASSWORD@HOST:PORT/NAME``       |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| MSSQL       | ``sql_server.pyodbc``                         | ``mssql://USER:PASSWORD@HOST:PORT/NAME``         |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| MSSQL [5]_  | ``mssql``                                     | ``mssqlms://USER:PASSWORD@HOST:PORT/NAME``       |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| MySQL       | ``django.db.backends.mysql``                  | ``mysql://USER:PASSWORD@HOST:PORT/NAME``         |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| MySQL (GIS) | ``django.contrib.gis.db.backends.mysql``      | ``mysqlgis://USER:PASSWORD@HOST:PORT/NAME``      |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| SQLite      | ``django.db.backends.sqlite3``                | ``sqlite:///PATH`` [3]_                          |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| SpatiaLite  | ``django.contrib.gis.db.backends.spatialite`` | ``spatialite:///PATH`` [3]_                      |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| Oracle      | ``django.db.backends.oracle``                 | ``oracle://USER:PASSWORD@HOST:PORT/NAME`` [4]_   |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| Oracle (GIS)| ``django.contrib.gis.db.backends.oracle``     | ``oraclegis://USER:PASSWORD@HOST:PORT/NAME``     |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| Redshift    | ``django_redshift_backend``                   | ``redshift://USER:PASSWORD@HOST:PORT/NAME``      |
-+-------------+-----------------------------------------------+--------------------------------------------------+
-| CockroachDB | ``django_cockroachdb``                        | ``cockroach://USER:PASSWORD@HOST:PORT/NAME``     |
-+-------------+-----------------------------------------------+--------------------------------------------------+
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| Engine               | Django Backend                                | URL                                              |
++======================+===============================================+==================================================+
+| PostgreSQL           | ``django.db.backends.postgresql`` [1]_        | ``postgres://USER:PASSWORD@HOST:PORT/NAME`` [2]_ |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| PostGIS              | ``django.contrib.gis.db.backends.postgis``    | ``postgis://USER:PASSWORD@HOST:PORT/NAME``       |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| MSSQL                | ``sql_server.pyodbc``                         | ``mssql://USER:PASSWORD@HOST:PORT/NAME``         |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| MSSQL [5]_           | ``mssql``                                     | ``mssqlms://USER:PASSWORD@HOST:PORT/NAME``       |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| MySQL                | ``django.db.backends.mysql``                  | ``mysql://USER:PASSWORD@HOST:PORT/NAME``         |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| MySQL (GIS)          | ``django.contrib.gis.db.backends.mysql``      | ``mysqlgis://USER:PASSWORD@HOST:PORT/NAME``      |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| SQLite               | ``django.db.backends.sqlite3``                | ``sqlite:///PATH`` [3]_                          |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| SpatiaLite           | ``django.contrib.gis.db.backends.spatialite`` | ``spatialite:///PATH`` [3]_                      |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| Oracle               | ``django.db.backends.oracle``                 | ``oracle://USER:PASSWORD@HOST:PORT/NAME`` [4]_   |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| Oracle (GIS)         | ``django.contrib.gis.db.backends.oracle``     | ``oraclegis://USER:PASSWORD@HOST:PORT/NAME``     |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| Redshift             | ``django_redshift_backend``                   | ``redshift://USER:PASSWORD@HOST:PORT/NAME``      |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| CockroachDB          | ``django_cockroachdb``                        | ``cockroach://USER:PASSWORD@HOST:PORT/NAME``     |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| Timescale [6]_       | ``timescale.db.backends.postgresql``          | ``timescale://USER:PASSWORD@HOST:PORT/NAME``     |
++----------------------+-----------------------------------------------+--------------------------------------------------+
+| Timescale (GIS) [6]_ | ``timescale.db.backend.postgis``              | ``timescalegis://USER:PASSWORD@HOST:PORT/NAME``  |
++----------------------+-----------------------------------------------+--------------------------------------------------+
 
 .. [1] The django.db.backends.postgresql backend is named django.db.backends.postgresql_psycopg2 in older releases. For
        backwards compatibility, the old name still works in newer versions. (The new name does not work in older versions).
@@ -130,6 +134,8 @@ URL schema
        by ``:`` not by ``/``. Also you can omit ``HOST`` and ``PORT``
        and provide a full DSN string or TNS name in ``NAME`` part.
 .. [5] Microsoft official `mssql-django <https://github.com/microsoft/mssql-django>`_ adapter.
+.. [6] Using the django-timescaledb Package which must be installed.
+
 
 Contributing
 ------------

dj_database_url.py

@@ -26,6 +26,8 @@ urlparse.uses_netloc.append("oracle")
 urlparse.uses_netloc.append("oraclegis")
 urlparse.uses_netloc.append("redshift")
 urlparse.uses_netloc.append("cockroach")
+urlparse.uses_netloc.append("timescale")
+urlparse.uses_netloc.append("timescalegis")
 
 DEFAULT_ENV = "DATABASE_URL"
 
@@ -43,6 +45,8 @@ SCHEMES = {
     "oraclegis": "django.contrib.gis.db.backends.oracle",
     "redshift": "django_redshift_backend",
     "cockroach": "django_cockroachdb",
+    "timescale": "timescale.db.backends.postgresql",
+    "timescalegis": "timescale.db.backends.postgis",
 }
 
 # https://docs.djangoproject.com/en/2.0/releases/2.0/#id1
@@ -147,6 +151,8 @@ def parse(url, engine=None, conn_max_age=0, ssl_require=False):
         "django.db.backends.postgresql_psycopg2",
         "django.db.backends.postgresql",
         "django_redshift_backend",
+        "timescale.db.backends.postgresql",
+        "timescale.db.backends.postgis",
     ):
         options["options"] = "-c search_path={0}".format(options.pop("currentSchema"))
 

test_dj_database_url.py

@@ -371,6 +371,136 @@ class DatabaseTestSuite(unittest.TestCase):
         assert url["OPTIONS"]["driver"] == "ODBC Driver 13 for SQL Server"
         assert "currentSchema" not in url["OPTIONS"]
 
+    def test_timescale_parsing(self):
+        url = "timescale://uf07k1i6d8ia0v:wegauwhgeuioweg@ec2-107-21-253-135.compute-1.amazonaws.com:5431/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgresql"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "ec2-107-21-253-135.compute-1.amazonaws.com"
+        assert url["USER"] == "uf07k1i6d8ia0v"
+        assert url["PASSWORD"] == "wegauwhgeuioweg"
+        assert url["PORT"] == 5431
+
+    def test_timescale_unix_socket_parsing(self):
+        url = "timescale://%2Fvar%2Frun%2Fpostgresql/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgresql"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "/var/run/postgresql"
+        assert url["USER"] == ""
+        assert url["PASSWORD"] == ""
+        assert url["PORT"] == ""
+
+        url = "timescale://%2FUsers%2Fpostgres%2FRuN/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgresql"
+        assert url["HOST"] == "/Users/postgres/RuN"
+        assert url["USER"] == ""
+        assert url["PASSWORD"] == ""
+        assert url["PORT"] == ""
+
+    def test_timescale_ipv6_parsing(self):
+        url = "timescale://ieRaekei9wilaim7:wegauwhgeuioweg@[2001:db8:1234::1234:5678:90af]:5431/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgresql"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "2001:db8:1234::1234:5678:90af"
+        assert url["USER"] == "ieRaekei9wilaim7"
+        assert url["PASSWORD"] == "wegauwhgeuioweg"
+        assert url["PORT"] == 5431
+
+    def test_timescale_search_path_parsing(self):
+        url = "timescale://uf07k1i6d8ia0v:wegauwhgeuioweg@ec2-107-21-253-135.compute-1.amazonaws.com:5431/d8r82722r2kuvn?currentSchema=otherschema"
+        url = dj_database_url.parse(url)
+        assert url["ENGINE"] == "timescale.db.backends.postgresql"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "ec2-107-21-253-135.compute-1.amazonaws.com"
+        assert url["USER"] == "uf07k1i6d8ia0v"
+        assert url["PASSWORD"] == "wegauwhgeuioweg"
+        assert url["PORT"] == 5431
+        assert url["OPTIONS"]["options"] == "-c search_path=otherschema"
+        assert "currentSchema" not in url["OPTIONS"]
+
+    def test_timescale_parsing_with_special_characters(self):
+        url = "timescale://%23user:%23password@ec2-107-21-253-135.compute-1.amazonaws.com:5431/%23database"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgresql"
+        assert url["NAME"] == "#database"
+        assert url["HOST"] == "ec2-107-21-253-135.compute-1.amazonaws.com"
+        assert url["USER"] == "#user"
+        assert url["PASSWORD"] == "#password"
+        assert url["PORT"] == 5431
+
+    def test_timescalegis_parsing(self):
+        url = "timescalegis://uf07k1i6d8ia0v:wegauwhgeuioweg@ec2-107-21-253-135.compute-1.amazonaws.com:5431/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgis"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "ec2-107-21-253-135.compute-1.amazonaws.com"
+        assert url["USER"] == "uf07k1i6d8ia0v"
+        assert url["PASSWORD"] == "wegauwhgeuioweg"
+        assert url["PORT"] == 5431
+
+    def test_timescalegis_unix_socket_parsing(self):
+        url = "timescalegis://%2Fvar%2Frun%2Fpostgresql/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgis"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "/var/run/postgresql"
+        assert url["USER"] == ""
+        assert url["PASSWORD"] == ""
+        assert url["PORT"] == ""
+
+        url = "timescalegis://%2FUsers%2Fpostgres%2FRuN/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgis"
+        assert url["HOST"] == "/Users/postgres/RuN"
+        assert url["USER"] == ""
+        assert url["PASSWORD"] == ""
+        assert url["PORT"] == ""
+
+    def test_timescalegis_ipv6_parsing(self):
+        url = "timescalegis://ieRaekei9wilaim7:wegauwhgeuioweg@[2001:db8:1234::1234:5678:90af]:5431/d8r82722r2kuvn"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgis"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "2001:db8:1234::1234:5678:90af"
+        assert url["USER"] == "ieRaekei9wilaim7"
+        assert url["PASSWORD"] == "wegauwhgeuioweg"
+        assert url["PORT"] == 5431
+
+    def test_timescalegis_search_path_parsing(self):
+        url = "timescalegis://uf07k1i6d8ia0v:wegauwhgeuioweg@ec2-107-21-253-135.compute-1.amazonaws.com:5431/d8r82722r2kuvn?currentSchema=otherschema"
+        url = dj_database_url.parse(url)
+        assert url["ENGINE"] == "timescale.db.backends.postgis"
+        assert url["NAME"] == "d8r82722r2kuvn"
+        assert url["HOST"] == "ec2-107-21-253-135.compute-1.amazonaws.com"
+        assert url["USER"] == "uf07k1i6d8ia0v"
+        assert url["PASSWORD"] == "wegauwhgeuioweg"
+        assert url["PORT"] == 5431
+        assert url["OPTIONS"]["options"] == "-c search_path=otherschema"
+        assert "currentSchema" not in url["OPTIONS"]
+
+    def test_timescalegis_parsing_with_special_characters(self):
+        url = "timescalegis://%23user:%23password@ec2-107-21-253-135.compute-1.amazonaws.com:5431/%23database"
+        url = dj_database_url.parse(url)
+
+        assert url["ENGINE"] == "timescale.db.backends.postgis"
+        assert url["NAME"] == "#database"
+        assert url["HOST"] == "ec2-107-21-253-135.compute-1.amazonaws.com"
+        assert url["USER"] == "#user"
+        assert url["PASSWORD"] == "#password"
+        assert url["PORT"] == 5431
+
 
 if __name__ == "__main__":
     unittest.main()