korlov42 commented on code in PR #5032:
URL: https://github.com/apache/ignite-3/pull/5032#discussion_r1919666317
##########
modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/exec/ddl/DdlCommandHandler.java:
##########
@@ -88,8 +88,15 @@ public DdlCommandHandler(
this.partitionIdleSafeTimePropagationPeriodMsSupplier =
partitionIdleSafeTimePropagationPeriodMsSupplier;
}
- /** Handles ddl commands. */
- public CompletableFuture<Boolean> handle(CatalogCommand cmd) {
+ /**
+ * Handles ddl commands.
+ *
+ * @param cmd Catalog command.
+ * @return Future representing pending completion of the operation. If the
command execution resulted in a modification of the catalog,
+ * the result will be the activation timestamp of the new catalog
version, if the command did not result in a change of the
+ * catalog, the result will be {@code null}.
+ */
+ public CompletableFuture<Long> handle(CatalogCommand cmd) {
Review Comment:
```suggestion
public CompletableFuture<@Nullable Long> handle(CatalogCommand cmd) {
```
perhaps, it worth to add the annotation to every return type
##########
modules/catalog/src/main/java/org/apache/ignite/internal/catalog/commands/CatalogUtils.java:
##########
@@ -542,11 +542,7 @@ public static HybridTimestamp
clusterWideEnsuredActivationTsSafeForRoReads(
LongSupplier partitionIdleSafeTimePropagationPeriodMsSupplier,
long maxClockSkewMillis
) {
- HybridTimestamp clusterWideEnsuredActivationTs =
clusterWideEnsuredActivationTimestamp(catalog.time(), maxClockSkewMillis);
Review Comment:
I think, we can remove `clusterWideEnsuredActivationTsSafeForRoReads`. It
accepts `partitionIdleSafeTimePropagationPeriodMsSupplier`, but this parameter
is not used anymore. Also, `partitionIdleSafeTimePropagationPeriodMsSupplier`
can be removed as well from `CatalogManagerImpl` and `DdlCommandHandler`
##########
modules/sql-engine/src/test/java/org/apache/ignite/internal/sql/engine/framework/ImplicitTxContext.java:
##########
@@ -26,10 +26,12 @@
/** Context that always creates implicit transaction. */
public class ImplicitTxContext implements QueryTransactionContext {
- public static final QueryTransactionContext INSTANCE = new
ImplicitTxContext();
-
private final HybridTimestampTracker observableTimeTracker =
HybridTimestampTracker.atomicTracker(null);
+ public static ImplicitTxContext instance() {
Review Comment:
I think, the name `create` will better reflect semantic
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