@@ -147,7 +147,13 @@ public com.google.protobuf.ByteString getTransaction() {
147147 *
148148 *
149149 * <pre>
150- * The time at which the aggregate value is valid for.
150+ * The time at which the aggregate result was computed. This is always
151+ * monotonically increasing; in this case, the previous AggregationResult in
152+ * the result stream are guaranteed not to have changed between their
153+ * `read_time` and this one.
154+ * If the query returns no results, a response with `read_time` and no
155+ * `result` will be sent, and this represents the time at which the query
156+ * was run.
151157 * </pre>
152158 *
153159 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -162,7 +168,13 @@ public boolean hasReadTime() {
162168 *
163169 *
164170 * <pre>
165- * The time at which the aggregate value is valid for.
171+ * The time at which the aggregate result was computed. This is always
172+ * monotonically increasing; in this case, the previous AggregationResult in
173+ * the result stream are guaranteed not to have changed between their
174+ * `read_time` and this one.
175+ * If the query returns no results, a response with `read_time` and no
176+ * `result` will be sent, and this represents the time at which the query
177+ * was run.
166178 * </pre>
167179 *
168180 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -177,7 +189,13 @@ public com.google.protobuf.Timestamp getReadTime() {
177189 *
178190 *
179191 * <pre>
180- * The time at which the aggregate value is valid for.
192+ * The time at which the aggregate result was computed. This is always
193+ * monotonically increasing; in this case, the previous AggregationResult in
194+ * the result stream are guaranteed not to have changed between their
195+ * `read_time` and this one.
196+ * If the query returns no results, a response with `read_time` and no
197+ * `result` will be sent, and this represents the time at which the query
198+ * was run.
181199 * </pre>
182200 *
183201 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -853,7 +871,13 @@ public Builder clearTransaction() {
853871 *
854872 *
855873 * <pre>
856- * The time at which the aggregate value is valid for.
874+ * The time at which the aggregate result was computed. This is always
875+ * monotonically increasing; in this case, the previous AggregationResult in
876+ * the result stream are guaranteed not to have changed between their
877+ * `read_time` and this one.
878+ * If the query returns no results, a response with `read_time` and no
879+ * `result` will be sent, and this represents the time at which the query
880+ * was run.
857881 * </pre>
858882 *
859883 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -867,7 +891,13 @@ public boolean hasReadTime() {
867891 *
868892 *
869893 * <pre>
870- * The time at which the aggregate value is valid for.
894+ * The time at which the aggregate result was computed. This is always
895+ * monotonically increasing; in this case, the previous AggregationResult in
896+ * the result stream are guaranteed not to have changed between their
897+ * `read_time` and this one.
898+ * If the query returns no results, a response with `read_time` and no
899+ * `result` will be sent, and this represents the time at which the query
900+ * was run.
871901 * </pre>
872902 *
873903 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -885,7 +915,13 @@ public com.google.protobuf.Timestamp getReadTime() {
885915 *
886916 *
887917 * <pre>
888- * The time at which the aggregate value is valid for.
918+ * The time at which the aggregate result was computed. This is always
919+ * monotonically increasing; in this case, the previous AggregationResult in
920+ * the result stream are guaranteed not to have changed between their
921+ * `read_time` and this one.
922+ * If the query returns no results, a response with `read_time` and no
923+ * `result` will be sent, and this represents the time at which the query
924+ * was run.
889925 * </pre>
890926 *
891927 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -907,7 +943,13 @@ public Builder setReadTime(com.google.protobuf.Timestamp value) {
907943 *
908944 *
909945 * <pre>
910- * The time at which the aggregate value is valid for.
946+ * The time at which the aggregate result was computed. This is always
947+ * monotonically increasing; in this case, the previous AggregationResult in
948+ * the result stream are guaranteed not to have changed between their
949+ * `read_time` and this one.
950+ * If the query returns no results, a response with `read_time` and no
951+ * `result` will be sent, and this represents the time at which the query
952+ * was run.
911953 * </pre>
912954 *
913955 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -926,7 +968,13 @@ public Builder setReadTime(com.google.protobuf.Timestamp.Builder builderForValue
926968 *
927969 *
928970 * <pre>
929- * The time at which the aggregate value is valid for.
971+ * The time at which the aggregate result was computed. This is always
972+ * monotonically increasing; in this case, the previous AggregationResult in
973+ * the result stream are guaranteed not to have changed between their
974+ * `read_time` and this one.
975+ * If the query returns no results, a response with `read_time` and no
976+ * `result` will be sent, and this represents the time at which the query
977+ * was run.
930978 * </pre>
931979 *
932980 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -951,7 +999,13 @@ public Builder mergeReadTime(com.google.protobuf.Timestamp value) {
951999 *
9521000 *
9531001 * <pre>
954- * The time at which the aggregate value is valid for.
1002+ * The time at which the aggregate result was computed. This is always
1003+ * monotonically increasing; in this case, the previous AggregationResult in
1004+ * the result stream are guaranteed not to have changed between their
1005+ * `read_time` and this one.
1006+ * If the query returns no results, a response with `read_time` and no
1007+ * `result` will be sent, and this represents the time at which the query
1008+ * was run.
9551009 * </pre>
9561010 *
9571011 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -970,7 +1024,13 @@ public Builder clearReadTime() {
9701024 *
9711025 *
9721026 * <pre>
973- * The time at which the aggregate value is valid for.
1027+ * The time at which the aggregate result was computed. This is always
1028+ * monotonically increasing; in this case, the previous AggregationResult in
1029+ * the result stream are guaranteed not to have changed between their
1030+ * `read_time` and this one.
1031+ * If the query returns no results, a response with `read_time` and no
1032+ * `result` will be sent, and this represents the time at which the query
1033+ * was run.
9741034 * </pre>
9751035 *
9761036 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -984,7 +1044,13 @@ public com.google.protobuf.Timestamp.Builder getReadTimeBuilder() {
9841044 *
9851045 *
9861046 * <pre>
987- * The time at which the aggregate value is valid for.
1047+ * The time at which the aggregate result was computed. This is always
1048+ * monotonically increasing; in this case, the previous AggregationResult in
1049+ * the result stream are guaranteed not to have changed between their
1050+ * `read_time` and this one.
1051+ * If the query returns no results, a response with `read_time` and no
1052+ * `result` will be sent, and this represents the time at which the query
1053+ * was run.
9881054 * </pre>
9891055 *
9901056 * <code>.google.protobuf.Timestamp read_time = 3;</code>
@@ -1000,7 +1066,13 @@ public com.google.protobuf.TimestampOrBuilder getReadTimeOrBuilder() {
10001066 *
10011067 *
10021068 * <pre>
1003- * The time at which the aggregate value is valid for.
1069+ * The time at which the aggregate result was computed. This is always
1070+ * monotonically increasing; in this case, the previous AggregationResult in
1071+ * the result stream are guaranteed not to have changed between their
1072+ * `read_time` and this one.
1073+ * If the query returns no results, a response with `read_time` and no
1074+ * `result` will be sent, and this represents the time at which the query
1075+ * was run.
10041076 * </pre>
10051077 *
10061078 * <code>.google.protobuf.Timestamp read_time = 3;</code>
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