clintropolis commented on code in PR #15241:
URL: https://github.com/apache/druid/pull/15241#discussion_r1375106261
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sql/src/main/java/org/apache/druid/sql/calcite/rel/DruidOuterQueryRel.java:
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@@ -47,7 +47,7 @@
*/
public class DruidOuterQueryRel extends DruidRel<DruidOuterQueryRel>
{
- private static final TableDataSource DUMMY_DATA_SOURCE = new
TableDataSource("__subquery__");
+ public static final TableDataSource DUMMY_DATA_SOURCE = new
TableDataSource("__subquery__");
Review Comment:
i wonder if we should just override `isConcrete` to return false instead of
making this public and checking specifically for this (or maybe make a special
dummy datasource class to use in planner that also implements `isConcrete` as
false), because we could simplify the scan query conversion to just check for
`!isConcrete` instead of checking for this instance or concrete
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