Make sure mysql select json object keys are escaped.

tests/postgres/select_json_test.go

@@ -914,3 +914,45 @@ func TestSelectJson_InvalidJson(t *testing.T) {
 	err := stmt.QueryContext(ctx, db, &dest)
 	require.ErrorContains(t, err, "invalid json")
 }
+
+func TestSelectJsonObject_EscapesJsonKeys(t *testing.T) {
+	stmt := SELECT_JSON_OBJ(
+		String("value").AS("author"),
+		String("value").AS("author's name"),
+		String("value").AS("author''s name"),
+		String("value").AS(`C:\tmp\file`),
+		String("value").AS("hello\nworld"),
+		String("value").AS("a'b\\\\c\\nd\\r\\x00e\\x1af"),
+		String("value").AS("žika 😀"),
+	)
+
+	testutils.AssertDebugStatementSql(t, stmt, `
+SELECT row_to_json(records) AS "json"
+FROM (
+          SELECT 'value'::text AS "author",
+               'value'::text AS "author's name",
+               'value'::text AS "author''s name",
+               'value'::text AS "C:\tmp\file",
+               'value'::text AS "hello
+world",
+               'value'::text AS "a'b\\c\nd\r\x00e\x1af",
+               'value'::text AS "žika 😀"
+     ) AS records;
+`)
+
+	var dest map[string]any
+
+	err := stmt.QueryContext(ctx, db, &dest)
+	require.NoError(t, err)
+	testutils.AssertJSON(t, dest, `
+{
+	"C:\\tmp\\file": "value",
+	"a'b\\\\c\\nd\\r\\x00e\\x1af": "value",
+	"author": "value",
+	"author''s name": "value",
+	"author's name": "value",
+	"hello\nworld": "value",
+	"žika 😀": "value"
+}
+`)
+}