Support := assignments inside RAISE .. USING clause

Author: nene

src/syntax/procedural_language.ts

@@ -201,7 +201,8 @@ export const proceduralLanguageMap: CstToDocMap<AllProceduralNodes> = {
   raise_level: (print) => print("levelKw"),
   raise_using_clause: (print) =>
     group([print("usingKw"), indent([line, print("options")])]),
-  raise_option_element: (print) => [print("nameKw"), " = ", print("value")],
+  raise_option_element: (print) =>
+    group(print.spaced(["nameKw", "operator", "value"])),
   // ASSERT
   assert_stmt: (print) =>
     group(print.spaced(["assertKw", "condition", "message"])),

test/proc/raise.test.ts

@@ -29,7 +29,7 @@ describe("raise", () => {
   it(`formats RAISE with level and USING clause`, async () => {
     await testPlpgsql(dedent`
       RAISE WARNING index_out_of_range
-        USING MESSAGE = 'Index is out of range', HINT = 'Whatever'
+        USING MESSAGE = 'Index is out of range', HINT := 'Whatever'
     `);
   });