Intermediate changes

commit_hash:b16337561a5a3b91d687f673c582ec739951098a

yql/essentials/cfg/tests/gateways-experimental.conf

@@ -18,6 +18,10 @@ Yt {
 Dq {
 }
 
+SqlCore {
+    TranslationFlags: ["FlexibleTypes", "DisableAnsiOptionalAs", "UnorderedResult", "EmitUnionMerge", "DistinctOverWindow"]
+}
+
 YqlCore {
     Flags {
         Name: "OptimizerFlags"