ADBDEV-8377: Enable build as PG extension for GP/GG

src/ports/greenplum/6/CMakeLists.txt

@@ -17,3 +17,4 @@
 # under the License.
 #
 add_current_greenplum_version()
+add_extension_support()

src/ports/greenplum/7/CMakeLists.txt

@@ -17,3 +17,4 @@
 # under the License.
 #
 add_current_greenplum_version()
+add_extension_support()

src/ports/greenplum/extension/madlib.control_in

@@ -0,0 +1,5 @@
+default_version = '@MADLIB_VERSION_MAJOR@.@MADLIB_VERSION_MINOR@.@MADLIB_VERSION_PATCH@'
+comment = 'A scalable in-database analytics library'
+relocatable = false
+module_pathname = '$libdir/libmadlib.so'
+requires = 'plpython3u'

src/ports/greenplum/extension/madlib.sql.base_in

@@ -0,0 +1,5 @@
+CREATE TABLE @[email protected](
+    id serial, version varchar(255), applied timestamp default current_timestamp
+);
+INSERT INTO @[email protected](version)
+    VALUES('@MADLIB_VERSION_STRING@'::text);