clintropolis commented on code in PR #16741:
URL: https://github.com/apache/druid/pull/16741#discussion_r1689402024
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processing/src/main/java/org/apache/druid/query/operator/window/WindowFrame.java:
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@@ -21,159 +21,192 @@
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
-import org.apache.druid.query.operator.ColumnWithDirection;
+import org.apache.druid.annotations.SubclassesMustOverrideEqualsAndHashCode;
+
+import javax.annotation.Nullable;
-import java.util.Collections;
import java.util.List;
import java.util.Objects;
-import java.util.stream.Collectors;
-public class WindowFrame
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "type")
+@JsonSubTypes(value = {
+ @JsonSubTypes.Type(name = "rows", value = WindowFrame.Rows.class),
+ @JsonSubTypes.Type(name = "groups", value = WindowFrame.Groups.class),
Review Comment:
yea, i understand GROUPS is part of the standard, it just seems really
strange that internally we "support" it but don't support it in SQL, and
externally we support RANGE but dont support it internally. If we are doing
this just for edge cases, then we should really add lots of javadocs to explain
what is going on so it isn't so confusing maybe?
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