#375: Added resolvedTimestampsInterval to changefeed description

table/src/main/java/tech/ydb/table/description/ChangefeedDescription.java

@@ -1,5 +1,6 @@
 package tech.ydb.table.description;
 
+import java.time.Duration;
 import java.util.Objects;
 
 import tech.ydb.table.settings.Changefeed;
@@ -30,14 +31,36 @@ public enum State {
     private final Changefeed.Format format;
     private final State state;
     private final boolean virtualTimestamps;
+    private final Duration resolvedTimestampsInterval;
 
-    public ChangefeedDescription(String name, Changefeed.Mode mode, Changefeed.Format format, State state,
-            boolean virtualTimestamps) {
+    public ChangefeedDescription(
+        String name,
+        Changefeed.Mode mode,
+        Changefeed.Format format,
+        State state,
+        boolean virtualTimestamps,
+        Duration resolvedTimestampsInterval
+    ) {
         this.name = name;
         this.mode = mode;
         this.format = format;
         this.state = state;
         this.virtualTimestamps = virtualTimestamps;
+        this.resolvedTimestampsInterval = resolvedTimestampsInterval;
+    }
+
+    /**
+     * @deprecated use constructor with resolvedTimestampsInterval instead
+     */
+    @Deprecated
+    public ChangefeedDescription(
+        String name,
+        Changefeed.Mode mode,
+        Changefeed.Format format,
+        State state,
+        boolean virtualTimestamps
+    ) {
+        this(name, mode, format, state, virtualTimestamps, null);
     }
 
     /**
@@ -75,9 +98,16 @@ public boolean hasVirtualTimestamps() {
         return virtualTimestamps;
     }
 
+    /**
+     * @return Heartbeat interval
+     */
+    public Duration getResolvedTimestampsInterval() {
+        return resolvedTimestampsInterval;
+    }
+
     @Override
     public int hashCode() {
-        return Objects.hash(name, mode, format, state, virtualTimestamps);
+        return Objects.hash(name, mode, format, state, virtualTimestamps, resolvedTimestampsInterval);
     }
 
     @Override
@@ -94,7 +124,8 @@ public boolean equals(Object o) {
                 && mode == cd.mode
                 && format == cd.format
                 && state == cd.state
-                && virtualTimestamps == cd.virtualTimestamps;
+                && virtualTimestamps == cd.virtualTimestamps
+                && Objects.equals(resolvedTimestampsInterval, cd.resolvedTimestampsInterval);
     }
 
     @Override
@@ -104,6 +135,8 @@ public String toString() {
                 .append(", format=").append(format)
                 .append(", mode=").append(mode)
                 .append(", virtual timestamps=").append(virtualTimestamps)
+                .append(", resolved timestamps=").append(
+                    resolvedTimestampsInterval != null ? resolvedTimestampsInterval : "null")
                 .append("}").toString();
     }
 }

table/src/main/java/tech/ydb/table/impl/BaseSession.java

@@ -32,6 +32,7 @@
 import tech.ydb.core.grpc.YdbHeaders;
 import tech.ydb.core.impl.call.ProxyReadStream;
 import tech.ydb.core.operation.Operation;
+import tech.ydb.core.utils.ProtobufUtils;
 import tech.ydb.core.utils.URITools;
 import tech.ydb.proto.StatusCodesProtos.StatusIds;
 import tech.ydb.proto.ValueProtos;
@@ -261,6 +262,14 @@ public static YdbTable.Changefeed buildChangefeed(Changefeed changefeed) {
                     .build());
         }
 
+        Duration resolvedTimestampsInterval = changefeed.getResolvedTimestampsInterval();
+        if (resolvedTimestampsInterval != null) {
+            builder.setResolvedTimestampsInterval(com.google.protobuf.Duration.newBuilder()
+                    .setSeconds(resolvedTimestampsInterval.getSeconds())
+                    .setNanos(resolvedTimestampsInterval.getNano())
+                    .build());
+        }
+
         return builder.build();
     }
 
@@ -849,7 +858,8 @@ private static TableDescription mapDescribeTable(
                 mapChangefeedMode(pb.getMode()),
                 mapChangefeedFormat(pb.getFormat()),
                 mapChangefeedState(pb.getState()),
-                pb.getVirtualTimestamps()
+                pb.getVirtualTimestamps(),
+                ProtobufUtils.protoToDuration(pb.getResolvedTimestampsInterval())
             ));
         }
 

table/src/main/java/tech/ydb/table/settings/Changefeed.java

@@ -44,6 +44,7 @@ public tech.ydb.proto.table.YdbTable.ChangefeedFormat.Format toProto() {
     private final boolean virtualTimestamps;
     private final Duration retentionPeriod;
     private final boolean initialScan;
+    private final Duration resolvedTimestampsInterval;
 
     private Changefeed(Builder builder) {
         this.name = builder.name;
@@ -52,6 +53,7 @@ private Changefeed(Builder builder) {
         this.virtualTimestamps = builder.virtualTimestamps;
         this.retentionPeriod = builder.retentionPeriod;
         this.initialScan = builder.initialScan;
+        this.resolvedTimestampsInterval = builder.resolvedTimestampsInterval;
     }
 
     public String getName() {
@@ -78,6 +80,10 @@ public Duration getRetentionPeriod() {
         return retentionPeriod;
     }
 
+    public Duration getResolvedTimestampsInterval() {
+        return resolvedTimestampsInterval;
+    }
+
     @Deprecated
     public tech.ydb.proto.table.YdbTable.Changefeed toProto() {
         return BaseSession.buildChangefeed(this);
@@ -98,12 +104,14 @@ public static class Builder {
         private boolean virtualTimestamps = false;
         private Duration retentionPeriod = null;
         private boolean initialScan = false;
+        private Duration resolvedTimestampsInterval = null;
 
         private Builder(ChangefeedDescription description) {
             this.name = description.getName();
             this.mode = description.getMode();
             this.format = description.getFormat();
             this.virtualTimestamps = description.hasVirtualTimestamps();
+            this.resolvedTimestampsInterval = description.getResolvedTimestampsInterval();
         }
 
         private Builder(String name) {
@@ -135,6 +143,11 @@ public Builder withRetentionPeriod(Duration retentionPeriod) {
             return this;
         }
 
+        public Builder withResolvedTimestampsInterval(Duration resolvedTimestampsInterval) {
+            this.resolvedTimestampsInterval = resolvedTimestampsInterval;
+            return this;
+        }
+
         public Changefeed build() {
             return new Changefeed(this);
         }

table/src/test/java/tech/ydb/table/integration/ChangefeedTableTest.java

@@ -124,6 +124,7 @@ public void tableChangefeedsTest() {
                         .withMode(Changefeed.Mode.NEW_AND_OLD_IMAGES)
                         .withVirtualTimestamps(true)
                         .withRetentionPeriod(Duration.ofDays(5))
+                        .withResolvedTimestampsInterval(Duration.ofSeconds(3))
                         .build())
         )).join();
         Assert.assertTrue("Alter table changefeed 2 " + alterStatus, alterStatus.isSuccess());
@@ -142,8 +143,9 @@ public void tableChangefeedsTest() {
         Assert.assertEquals(Changefeed.Format.JSON, ch1.getFormat());
         Assert.assertEquals(ChangefeedDescription.State.ENABLED, ch1.getState());
         Assert.assertFalse(ch1.hasVirtualTimestamps());
+        Assert.assertEquals(ch1.getResolvedTimestampsInterval(), Duration.ZERO);  // zero is default when not specified
         Assert.assertEquals(
-                "Changefeed['change1']{state=ENABLED, format=JSON, mode=KEYS_ONLY, virtual timestamps=false}",
+                "Changefeed['change1']{state=ENABLED, format=JSON, mode=KEYS_ONLY, virtual timestamps=false, resolved timestamps=PT0S}",
                 ch1.toString()
         );
 
@@ -152,6 +154,7 @@ public void tableChangefeedsTest() {
         Assert.assertEquals(Changefeed.Mode.NEW_AND_OLD_IMAGES, ch2.getMode());
         Assert.assertEquals(Changefeed.Format.JSON, ch2.getFormat());
         Assert.assertTrue(ch2.hasVirtualTimestamps());
+        Assert.assertEquals(ch2.getResolvedTimestampsInterval(), Duration.ofSeconds(3));
 
         // State may be flaky
         Assert.assertTrue(ch2.getState() == ChangefeedDescription.State.INITIAL_SCAN ||