docheck: test postgresql-12 with python3

Author: Dmitry Bogatov

docheck

@@ -40,6 +40,7 @@ case "${cmd}" in
 (py2-11)  py2_check py2-11  ;;
 (py3-11)  py3_check py3-11  ;;
 (py2-12)  py2_check py2-12  ;;
+(py3-12)  py3_check py3-12  ;;
 (test-in-docker)
 	# Actually, we only need only distinguish python-2.7 and python-3.3
 	# tests.

docker/py3-12/Dockerfile

@@ -0,0 +1,13 @@
+FROM postgres:12
+RUN apt-get update && apt-get install -y \
+	build-essential \
+	clang \
+	libpython3.7-dev \
+	python3.7-dev \
+	postgresql-client-12 \
+	postgresql-server-dev-12 \
+	python3-setuptools
+
+ENV PGUSER postgres
+ENV PYTHON_OVERRIDE python3.7
+ENV LC_ALL C.UTF-8

test-3.7

@@ -0,0 +1 @@
+test-3.3/