alex-plekhanov commented on a change in pull request #9291:
URL: https://github.com/apache/ignite/pull/9291#discussion_r684059035
##########
File path:
modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/exec/ExecutionServiceImpl.java
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@@ -647,10 +607,15 @@ private FieldsMetadata
explainFieldsMetadata(PlanningContext ctx) {
}
/** */
- private FieldsQueryCursor<List<?>> executePlan(UUID qryId, PlanningContext
pctx, QueryPlan plan) {
+ private FieldsQueryCursor<List<?>> executePlan(
+ UUID qryId,
+ PlanningContext pctx,
+ QueryPlan plan
+ ) {
switch (plan.type()) {
case DML:
- // TODO a barrier between previous operation and this one
+ ListFieldsQueryCursor<?> cur = executeQuery(qryId,
(MultiStepPlan)plan, pctx);
+ return new ListFieldsQueryCursor<>(cur.getAll(),
cur.fieldsMeta(), cur.isQuery());
Review comment:
It's enough to just call `cur.iterator().hasNext()` without copying to
gain the same result.
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