Add std::lang::{go,js,py,rs} annotations (#8803)

See
geldata/gel-python#627 (comment)

Author: msullivan

edb/lib/std/15-attrs.edgeql

@@ -30,3 +30,17 @@ CREATE ABSTRACT ANNOTATION std::deprecated {
         'A marker that an item is deprecated.';
 };
 CREATE ABSTRACT ANNOTATION std::identifier;
+
+CREATE MODULE std::lang;
+
+CREATE MODULE std::lang::go;
+CREATE ABSTRACT ANNOTATION std::lang::go::type;
+
+CREATE MODULE std::lang::js;
+CREATE ABSTRACT ANNOTATION std::lang::js::type;
+
+CREATE MODULE std::lang::py;
+CREATE ABSTRACT ANNOTATION std::lang::py::type;
+
+CREATE MODULE std::lang::rs;
+CREATE ABSTRACT ANNOTATION std::lang::rs::type;

edb/pgsql/patches.py

@@ -312,4 +312,19 @@ def get_version_key(num_patches: int) -> str:
     ('metaschema-sql', 'JSONIndexByTextFunction'),
     ('metaschema-sql', 'JSONIndexByIntFunction'),
     ('metaschema-sql', 'JSONSliceFunction'),
+    ('edgeql', '''
+CREATE MODULE std::lang;
+
+CREATE MODULE std::lang::go;
+CREATE ABSTRACT ANNOTATION std::lang::go::type;
+
+CREATE MODULE std::lang::js;
+CREATE ABSTRACT ANNOTATION std::lang::js::type;
+
+CREATE MODULE std::lang::py;
+CREATE ABSTRACT ANNOTATION std::lang::py::type;
+
+CREATE MODULE std::lang::rs;
+CREATE ABSTRACT ANNOTATION std::lang::rs::type;
+'''),
 ]

edb/schema/schema.py

@@ -81,6 +81,11 @@
     sn.UnqualName('std::pg'),
     sn.UnqualName('std::_test'),
     sn.UnqualName('std::fts'),
+    sn.UnqualName('std::lang'),
+    sn.UnqualName('std::lang::go'),
+    sn.UnqualName('std::lang::js'),
+    sn.UnqualName('std::lang::py'),
+    sn.UnqualName('std::lang::rs'),
     EXT_MODULE,
     sn.UnqualName('std::enc'),
 )

tests/test_edgeql_ddl.py

@@ -8323,6 +8323,7 @@ async def test_edgeql_ddl_annotation_08(self):
                 property name -> str;
                 index ON (.name) {
                     annotation title := 'name index';
+                    annotation lang::py::type := 'asdf';
                 }
             }
         ''')
@@ -8345,10 +8346,16 @@ async def test_edgeql_ddl_annotation_08(self):
             [{
                 "indexes": [{
                     "expr": ".name",
-                    "annotations": [{
-                        "name": "std::title",
-                        "@value": "name index",
-                    }]
+                    "annotations": tb.bag([
+                        {
+                            "name": "std::title",
+                            "@value": "name index",
+                        },
+                        {
+                            "name": "std::lang::py::type",
+                            "@value": "asdf",
+                        },
+                    ])
                 }]
             }]
         )