Intermediate changes

commit_hash:706945a50b6ea8433fe982b3371af2517cfc6273

Author: robot-piglet

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

@@ -18,13 +18,15 @@ Yt {
 Dq {
 }
 
-SqlCore {
-    TranslationFlags: ["FlexibleTypes", "DisableAnsiOptionalAs", "UnorderedResult", "EmitUnionMerge", "DistinctOverWindow"]
-}
-
 YqlCore {
     Flags {
         Name: "OptimizerFlags"
-        Args: ["FieldSubsetEnableMultiusage", "MemberNthOverFlatMap", "ExtractMembersSplitOnOptional", "FilterNullMembersOverJust"]
+        Args: [
+            "FieldSubsetEnableMultiusage",
+            "MemberNthOverFlatMap",
+            "ExtractMembersSplitOnOptional",
+            "FilterNullMembersOverJust",
+            "UnorderedOverSortImproved"
+        ]
     }
 }