private RelationPlan planSubquery(Expression subquery, TranslationMap outerContext) {
    return new RelationPlanner(
            analysis,
            symbolAllocator,
            plannerContext,
            Optional.of(outerContext),
            session,
            recursiveSubqueries)
        .process(subquery, null);
  }
Plans a correlated subquery for value IN (subQuery)

@param originalExpression the original expression from which the IN predicate was derived. Used
    for subsequent translations.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/planner/SubqueryPlanner.java