korlov42 commented on code in PR #2671:
URL: https://github.com/apache/ignite-3/pull/2671#discussion_r1363688794


##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/exec/exp/ExpressionFactoryImpl.java:
##########
@@ -20,18 +20,19 @@
 import static org.apache.ignite.internal.util.CollectionUtils.nullOrEmpty;
 
 import com.github.benmanes.caffeine.cache.Caffeine;
+import com.google.common.collect.ImmutableList;

Review Comment:
   we should avoid using guava library



##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/exec/exp/ExpressionFactoryImpl.java:
##########
@@ -376,17 +388,45 @@ private void expandBounds(
             List<RexNode> curLower,
             List<RexNode> curUpper,
             boolean lowerInclude,
-            boolean upperInclude
+            boolean upperInclude,
+            boolean containNull

Review Comment:
   as far as I an see, `containNull` is never `false`. Thus, why do we need 
this flag?



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