implemented versioned cache

common/cache/src/main/java/org/thingsboard/server/cache/RedisTbTransactionalCache.java

@@ -29,7 +29,6 @@ import org.springframework.data.redis.core.types.Expiration;
 import org.springframework.data.redis.serializer.RedisSerializer;
 import org.springframework.data.redis.serializer.StringRedisSerializer;
 import org.thingsboard.server.common.data.FstStatsService;
-import redis.clients.jedis.Connection;
 import redis.clients.jedis.Jedis;
 import redis.clients.jedis.JedisPool;
 import redis.clients.jedis.util.JedisClusterCRC16;
@@ -44,7 +43,7 @@ import java.util.concurrent.TimeUnit;
 @Slf4j
 public abstract class RedisTbTransactionalCache<K extends Serializable, V extends Serializable> implements TbTransactionalCache<K, V> {
 
-    private static final byte[] BINARY_NULL_VALUE = RedisSerializer.java().serialize(NullValue.INSTANCE);
+    static final byte[] BINARY_NULL_VALUE = RedisSerializer.java().serialize(NullValue.INSTANCE);
     static final JedisPool MOCK_POOL = new JedisPool(); //non-null pool required for JedisConnection to trigger closing jedis connection
 
     @Autowired
@@ -79,7 +78,7 @@ public abstract class RedisTbTransactionalCache<K extends Serializable, V extend
     public TbCacheValueWrapper<V> get(K key) {
         try (var connection = connectionFactory.getConnection()) {
             byte[] rawKey = getRawKey(key);
-            byte[] rawValue = connection.get(rawKey);
+            byte[] rawValue = doGet(connection, rawKey);
             if (rawValue == null) {
                 return null;
             } else if (Arrays.equals(rawValue, BINARY_NULL_VALUE)) {
@@ -96,6 +95,10 @@ public abstract class RedisTbTransactionalCache<K extends Serializable, V extend
         }
     }
 
+    protected byte[] doGet(RedisConnection connection, byte[] rawKey) {
+        return connection.stringCommands().get(rawKey);
+    }
+
     @Override
     public void put(K key, V value) {
         try (var connection = connectionFactory.getConnection()) {
@@ -153,7 +156,7 @@ public abstract class RedisTbTransactionalCache<K extends Serializable, V extend
         return new RedisTbCacheTransaction<>(this, connection);
     }
 
-    private RedisConnection getConnection(byte[] rawKey) {
+    protected RedisConnection getConnection(byte[] rawKey) {
         if (!connectionFactory.isRedisClusterAware()) {
             return connectionFactory.getConnection();
         }
@@ -180,7 +183,7 @@ public abstract class RedisTbTransactionalCache<K extends Serializable, V extend
         return connection;
     }
 
-    private byte[] getRawKey(K key) {
+    protected byte[] getRawKey(K key) {
         String keyString = cacheName + key.toString();
         byte[] rawKey;
         try {
@@ -196,7 +199,7 @@ public abstract class RedisTbTransactionalCache<K extends Serializable, V extend
         return rawKey;
     }
 
-    private byte[] getRawValue(V value) {
+    protected byte[] getRawValue(V value) {
         if (value == null) {
             return BINARY_NULL_VALUE;
         } else {

common/cache/src/main/java/org/thingsboard/server/cache/VersionedCaffeineTbTransactionalCache.java

@@ -0,0 +1,91 @@
+/**
+ * Copyright © 2016-2024 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.cache;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.cache.Cache;
+import org.springframework.cache.CacheManager;
+import org.thingsboard.server.common.data.HasVersion;
+import org.thingsboard.server.common.data.util.TbPair;
+
+import java.io.Serializable;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+@RequiredArgsConstructor
+public abstract class VersionedCaffeineTbTransactionalCache<K extends Serializable, V extends Serializable & HasVersion> implements VersionedTbTransactionalCache<K, V> {
+
+    private final CacheManager cacheManager;
+    private final String cacheName;
+
+    private final Lock lock = new ReentrantLock();
+
+    @Override
+    public TbCacheValueWrapper<V> get(K key) {
+        return SimpleTbCacheValueWrapper.wrap(doGet(key).getSecond());
+    }
+
+    @Override
+    public void put(K key, V value) {
+        Long version = value != null ? value.getVersion() : 0;
+        put(key, value, version);
+    }
+
+    @Override
+    public void put(K key, V value, Long version) {
+        if (version == null) {
+            return;
+        }
+        lock.lock();
+        try {
+            TbPair<Long, V> versionValuePair = doGet(key);
+            Long currentVersion = versionValuePair.getFirst();
+            if (currentVersion == null || version >= currentVersion) {
+                cacheManager.getCache(cacheName).put(key, TbPair.of(version, value));
+            }
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    private TbPair<Long, V> doGet(K key) {
+        Cache.ValueWrapper source = cacheManager.getCache(cacheName).get(key);
+        return source == null ? TbPair.emptyPair() : (TbPair<Long, V>) source.get();
+    }
+
+    @Override
+    public void evict(K key) {
+        lock.lock();
+        try {
+            cacheManager.getCache(cacheName).evict(key);
+        } finally {
+            lock.unlock();
+        }
+    }
+
+    @Override
+    public void evict(K key, Long version) {
+        if (version == null) {
+            return;
+        }
+        lock.lock();
+        try {
+            put(key, null, version);
+        } finally {
+            lock.unlock();
+        }
+    }
+}

common/cache/src/main/java/org/thingsboard/server/cache/VersionedRedisTbTransactionalCache.java

@@ -0,0 +1,163 @@
+/**
+ * Copyright © 2016-2024 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.cache;
+
+import jakarta.annotation.PostConstruct;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.NotImplementedException;
+import org.springframework.dao.InvalidDataAccessApiUsageException;
+import org.springframework.data.redis.connection.RedisConnection;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.connection.ReturnType;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+import org.thingsboard.server.common.data.HasVersion;
+
+import java.io.Serializable;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+
+@Slf4j
+public abstract class VersionedRedisTbTransactionalCache<K extends Serializable, V extends Serializable & HasVersion> extends RedisTbTransactionalCache<K, V> implements VersionedTbTransactionalCache<K, V> {
+
+    private static final int VERSION_SIZE = 8;
+    private static final int VALUE_END_OFFSET = -1;
+
+    static final byte[] SET_VERSIONED_VALUE_LUA_SCRIPT = StringRedisSerializer.UTF_8.serialize("""
+            -- KEYS[1] is the key
+            -- ARGV[1] is the new value
+            -- ARGV[2] is the new version
+
+            local key = KEYS[1]
+            local newValue = ARGV[1]
+            local newVersion = tonumber(ARGV[2])
+
+            -- Function to set the new value with the version
+            local function setNewValue()
+                local newValueWithVersion = struct.pack(">I8", newVersion) .. newValue:sub(9)
+                redis.call('SET', key, newValueWithVersion)
+            end
+
+            -- Get the current version (first 8 bytes) of the current value
+            local currentVersionBytes = redis.call('GETRANGE', key, 0, 7)
+
+            if currentVersionBytes and #currentVersionBytes == 8 then
+                -- Extract the current version from the first 8 bytes
+                local currentVersion = tonumber(struct.unpack(">I8", currentVersionBytes))
+
+                if newVersion >= currentVersion then
+                    setNewValue()
+                end
+            else
+                -- If the current value is absent or the current version is not found, set the new value
+                setNewValue()
+            end
+            """);
+    static final byte[] SET_VERSIONED_VALUE_SHA = StringRedisSerializer.UTF_8.serialize("041b109dd56f6c8afb55090076e754727a5d3da0");
+
+    public VersionedRedisTbTransactionalCache(String cacheName, CacheSpecsMap cacheSpecsMap, RedisConnectionFactory connectionFactory, TBRedisCacheConfiguration configuration, TbRedisSerializer<K, V> valueSerializer) {
+        super(cacheName, cacheSpecsMap, connectionFactory, configuration, valueSerializer);
+    }
+
+    @PostConstruct
+    public void init() {
+        try (var connection = getConnection(SET_VERSIONED_VALUE_SHA)) {
+            log.debug("Loading LUA with expected SHA[{}], connection [{}]", new String(SET_VERSIONED_VALUE_SHA), connection.getNativeConnection());
+            String sha = connection.scriptingCommands().scriptLoad(SET_VERSIONED_VALUE_LUA_SCRIPT);
+            if (!Arrays.equals(SET_VERSIONED_VALUE_SHA, StringRedisSerializer.UTF_8.serialize(sha))) {
+                log.error("SHA for SET_VERSIONED_VALUE_LUA_SCRIPT wrong! Expected [{}], but actual [{}], connection [{}]", new String(SET_VERSIONED_VALUE_SHA), sha, connection.getNativeConnection());
+            }
+        } catch (Throwable t) {
+            log.error("Error on Redis versioned cache init", t);
+        }
+    }
+
+    @Override
+    protected byte[] doGet(RedisConnection connection, byte[] rawKey) {
+        return connection.stringCommands().getRange(rawKey, VERSION_SIZE, VALUE_END_OFFSET);
+    }
+
+    @Override
+    public void put(K key, V value) {
+        Long version = value!= null ? value.getVersion() : 0;
+        put(key, value, version);
+    }
+
+    @Override
+    public void put(K key, V value, Long version) {
+        //TODO: use expiration
+        log.trace("put [{}][{}][{}]", key, value, version);
+        if (version == null) {
+            return;
+        }
+        final byte[] rawKey = getRawKey(key);
+        try (var connection = getConnection(rawKey)) {
+            byte[] rawValue = getRawValue(value);
+            byte[] rawVersion = StringRedisSerializer.UTF_8.serialize(String.valueOf(version));
+            try {
+                connection.scriptingCommands().evalSha(SET_VERSIONED_VALUE_SHA, ReturnType.VALUE, 1, rawKey, rawValue, rawVersion);
+            } catch (InvalidDataAccessApiUsageException e) {
+                log.debug("loading LUA [{}]", connection.getNativeConnection());
+                String sha = connection.scriptingCommands().scriptLoad(SET_VERSIONED_VALUE_LUA_SCRIPT);
+                if (!Arrays.equals(SET_VERSIONED_VALUE_SHA, StringRedisSerializer.UTF_8.serialize(sha))) {
+                    log.error("SHA for SET_VERSIONED_VALUE_LUA_SCRIPT wrong! Expected [{}], but actual [{}]", new String(SET_VERSIONED_VALUE_SHA), sha);
+                }
+                try {
+                    connection.scriptingCommands().evalSha(SET_VERSIONED_VALUE_SHA, ReturnType.VALUE, 1, rawKey, rawValue, rawVersion);
+                } catch (InvalidDataAccessApiUsageException ignored) {
+                    log.debug("Slowly executing eval instead of fast evalsha");
+                    connection.scriptingCommands().eval(SET_VERSIONED_VALUE_LUA_SCRIPT, ReturnType.VALUE, 1, rawKey, rawValue, rawVersion);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void evict(K key, Long version) {
+        log.trace("evict [{}][{}]", key, version);
+        if (version != null) {
+            //TODO: use evict expiration
+            put(key, null, version);
+        }
+    }
+
+    @Override
+    public void putIfAbsent(K key, V value) {
+        log.trace("putIfAbsent [{}][{}]", key, value);
+        throw new NotImplementedException("putIfAbsent is not supported by versioned cache");
+    }
+
+    @Override
+    public void evict(Collection<K> keys) {
+        throw new NotImplementedException("evict by many keys is not supported by versioned cache");
+    }
+
+    @Override
+    public void evictOrPut(K key, V value) {
+        throw new NotImplementedException("evictOrPut is not supported by versioned cache");
+    }
+
+    @Override
+    public TbCacheTransaction<K, V> newTransactionForKey(K key) {
+        throw new NotImplementedException("newTransactionForKey is not supported by versioned cache");
+    }
+
+    @Override
+    public TbCacheTransaction<K, V> newTransactionForKeys(List<K> keys) {
+        throw new NotImplementedException("newTransactionForKeys is not supported by versioned cache");
+    }
+
+}

common/cache/src/main/java/org/thingsboard/server/cache/VersionedTbTransactionalCache.java

@@ -0,0 +1,33 @@
+/**
+ * Copyright © 2016-2024 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.cache;
+
+import org.thingsboard.server.common.data.HasVersion;
+
+import java.io.Serializable;
+
+public interface VersionedTbTransactionalCache<K extends Serializable, V extends Serializable & HasVersion> {
+
+    TbCacheValueWrapper<V> get(K key);
+
+    void put(K key, V value);
+
+    void put(K key, V value, Long version);
+
+    void evict(K key);
+
+    void evict(K key, Long version);
+}

common/data/src/main/java/org/thingsboard/server/common/data/HasVersion.java

@@ -0,0 +1,20 @@
+/**
+ * Copyright © 2016-2024 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.common.data;
+
+public interface HasVersion {
+    long getVersion();
+}

common/data/src/main/java/org/thingsboard/server/common/data/kv/AttributeKvEntry.java

@@ -15,10 +15,12 @@
  */
 package org.thingsboard.server.common.data.kv;
 
+import org.thingsboard.server.common.data.HasVersion;
+
 /**
  * @author Andrew Shvayka
  */
-public interface AttributeKvEntry extends KvEntry {
+public interface AttributeKvEntry extends KvEntry, HasVersion {
 
     long getLastUpdateTs();
 

common/data/src/main/java/org/thingsboard/server/common/data/kv/BaseAttributeKvEntry.java

@@ -29,9 +29,18 @@ public class BaseAttributeKvEntry implements AttributeKvEntry {
     @Valid
     private final KvEntry kv;
 
+    private final Long version;
+
     public BaseAttributeKvEntry(KvEntry kv, long lastUpdateTs) {
         this.kv = kv;
         this.lastUpdateTs = lastUpdateTs;
+        this.version = null;
+    }
+
+    public BaseAttributeKvEntry(KvEntry kv, long lastUpdateTs, Long version) {
+        this.kv = kv;
+        this.lastUpdateTs = lastUpdateTs;
+        this.version = version;
     }
 
     public BaseAttributeKvEntry(long lastUpdateTs, KvEntry kv) {
@@ -88,6 +97,11 @@ public class BaseAttributeKvEntry implements AttributeKvEntry {
         return kv.getValue();
     }
 
+    @Override
+    public long getVersion() {
+        return version;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

common/data/src/main/java/org/thingsboard/server/common/data/util/TbPair.java

@@ -21,10 +21,17 @@ import lombok.Data;
 @Data
 @AllArgsConstructor
 public class TbPair<S, T> {
+    public static final TbPair EMPTY = new TbPair<>(null, null);
+
     private S first;
     private T second;
 
     public static <S, T> TbPair<S, T> of(S first, T second) {
         return new TbPair<>(first, second);
     }
+
+    @SuppressWarnings("unchecked")
+    public static <S, T> TbPair<S, T> emptyPair() {
+        return (TbPair<S, T>) EMPTY;
+    }
 }

dao/src/main/java/org/thingsboard/server/dao/AbstractVersionedInsertRepository.java

@@ -29,9 +29,9 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
-public abstract class AbstractVersionedInsertRepository<T> extends AbstractInsertRepository {
+import static org.thingsboard.server.dao.model.ModelConstants.VERSION_COLUMN;
 
-    public static final String VERSION_COLUMN = "version";
+public abstract class AbstractVersionedInsertRepository<T> extends AbstractInsertRepository {
 
     public List<Long> saveOrUpdate(List<T> entities) {
         return transactionTemplate.execute(status -> {
@@ -51,7 +51,7 @@ public abstract class AbstractVersionedInsertRepository<T> extends AbstractInser
             for (int i = 0; i < updateResult.length; i++) {
                 if (updateResult[i] == 0) {
                     insertEntities.add(entities.get(i));
-                    seqNumbers.add(0L);
+                    seqNumbers.add(null);
                     toInsertIndexes.add(i);
                 } else {
                     seqNumbers.add((Long) seqNumbersList.get(keyHolderIndex).get(VERSION_COLUMN));
@@ -63,12 +63,14 @@ public abstract class AbstractVersionedInsertRepository<T> extends AbstractInser
                 return seqNumbers;
             }
 
-            onInsertOrUpdate(insertEntities, keyHolder);
+            int[] insertResult = onInsertOrUpdate(insertEntities, keyHolder);
 
             seqNumbersList = keyHolder.getKeyList();
 
-            for (int i = 0; i < seqNumbersList.size(); i++) {
+            for (int i = 0; i < insertResult.length; i++) {
-                seqNumbers.set(toInsertIndexes.get(i), (Long) seqNumbersList.get(i).get(VERSION_COLUMN));
+                if (updateResult[i] != 0) {
+                    seqNumbers.set(toInsertIndexes.get(i), (Long) seqNumbersList.get(i).get(VERSION_COLUMN));
+                }
             }
 
             return seqNumbers;
@@ -89,8 +91,8 @@ public abstract class AbstractVersionedInsertRepository<T> extends AbstractInser
         }, keyHolder);
     }
 
-    private void onInsertOrUpdate(List<T> insertEntities, KeyHolder keyHolder) {
+    private int[] onInsertOrUpdate(List<T> insertEntities, KeyHolder keyHolder) {
-        jdbcTemplate.batchUpdate(new SequencePreparedStatementCreator(getInsertOrUpdateQuery()), new BatchPreparedStatementSetter() {
+        return jdbcTemplate.batchUpdate(new SequencePreparedStatementCreator(getInsertOrUpdateQuery()), new BatchPreparedStatementSetter() {
             @Override
             public void setValues(PreparedStatement ps, int i) throws SQLException {
                 setOnInsertOrUpdateValues(ps, i, insertEntities);

dao/src/main/java/org/thingsboard/server/dao/attributes/AttributeCaffeineCache.java

@@ -18,13 +18,13 @@ package org.thingsboard.server.dao.attributes;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cache.CacheManager;
 import org.springframework.stereotype.Service;
-import org.thingsboard.server.cache.CaffeineTbTransactionalCache;
+import org.thingsboard.server.cache.VersionedCaffeineTbTransactionalCache;
 import org.thingsboard.server.common.data.CacheConstants;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
 
 @ConditionalOnProperty(prefix = "cache", value = "type", havingValue = "caffeine", matchIfMissing = true)
 @Service("AttributeCache")
-public class AttributeCaffeineCache extends CaffeineTbTransactionalCache<AttributeCacheKey, AttributeKvEntry> {
+public class AttributeCaffeineCache extends VersionedCaffeineTbTransactionalCache<AttributeCacheKey, AttributeKvEntry> {
 
     public AttributeCaffeineCache(CacheManager cacheManager) {
         super(cacheManager, CacheConstants.ATTRIBUTES_CACHE);

dao/src/main/java/org/thingsboard/server/dao/attributes/AttributeRedisCache.java

@@ -21,9 +21,9 @@ import org.springframework.data.redis.connection.RedisConnectionFactory;
 import org.springframework.data.redis.serializer.SerializationException;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.cache.CacheSpecsMap;
-import org.thingsboard.server.cache.RedisTbTransactionalCache;
 import org.thingsboard.server.cache.TBRedisCacheConfiguration;
 import org.thingsboard.server.cache.TbRedisSerializer;
+import org.thingsboard.server.cache.VersionedRedisTbTransactionalCache;
 import org.thingsboard.server.common.data.CacheConstants;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
 import org.thingsboard.server.common.data.kv.BaseAttributeKvEntry;
@@ -38,7 +38,7 @@ import org.thingsboard.server.gen.transport.TransportProtos.KeyValueType;
 
 @ConditionalOnProperty(prefix = "cache", value = "type", havingValue = "redis")
 @Service("AttributeCache")
-public class AttributeRedisCache extends RedisTbTransactionalCache<AttributeCacheKey, AttributeKvEntry> {
+public class AttributeRedisCache extends VersionedRedisTbTransactionalCache<AttributeCacheKey, AttributeKvEntry> {
 
     public AttributeRedisCache(TBRedisCacheConfiguration configuration, CacheSpecsMap cacheSpecsMap, RedisConnectionFactory connectionFactory) {
         super(CacheConstants.ATTRIBUTES_CACHE, cacheSpecsMap, connectionFactory, configuration, new TbRedisSerializer<>() {
@@ -82,26 +82,15 @@ public class AttributeRedisCache extends RedisTbTransactionalCache<AttributeCach
                 try {
                     AttributeValueProto proto = AttributeValueProto.parseFrom(bytes);
                     boolean hasValue = proto.getHasV();
-                    KvEntry entry;
+                    KvEntry entry = switch (proto.getType()) {
-                    switch (proto.getType()) {
+                        case BOOLEAN_V -> new BooleanDataEntry(key.getKey(), hasValue ? proto.getBoolV() : null);
-                        case BOOLEAN_V:
+                        case LONG_V -> new LongDataEntry(key.getKey(), hasValue ? proto.getLongV() : null);
-                            entry = new BooleanDataEntry(key.getKey(), hasValue ? proto.getBoolV() : null);
+                        case DOUBLE_V -> new DoubleDataEntry(key.getKey(), hasValue ? proto.getDoubleV() : null);
-                            break;
+                        case STRING_V -> new StringDataEntry(key.getKey(), hasValue ? proto.getStringV() : null);
-                        case LONG_V:
+                        case JSON_V -> new JsonDataEntry(key.getKey(), hasValue ? proto.getJsonV() : null);
-                            entry = new LongDataEntry(key.getKey(), hasValue ? proto.getLongV() : null);
+                        default ->
-                            break;
+                                throw new InvalidProtocolBufferException("Unrecognized type: " + proto.getType() + " !");
-                        case DOUBLE_V:
+                    };
-                            entry = new DoubleDataEntry(key.getKey(), hasValue ? proto.getDoubleV() : null);
-                            break;
-                        case STRING_V:
-                            entry = new StringDataEntry(key.getKey(), hasValue ? proto.getStringV() : null);
-                            break;
-                        case JSON_V:
-                            entry = new JsonDataEntry(key.getKey(), hasValue ? proto.getJsonV() : null);
-                            break;
-                        default:
-                            throw new InvalidProtocolBufferException("Unrecognized type: " + proto.getType() + " !");
-                    }
                     return new BaseAttributeKvEntry(proto.getLastUpdateTs(), entry);
                 } catch (InvalidProtocolBufferException e) {
                     throw new SerializationException(e.getMessage());

dao/src/main/java/org/thingsboard/server/dao/attributes/AttributesDao.java

@@ -22,6 +22,7 @@ import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
+import org.thingsboard.server.common.data.util.TbPair;
 
 import java.util.Collection;
 import java.util.List;
@@ -42,6 +43,8 @@ public interface AttributesDao {
 
     List<ListenableFuture<String>> removeAll(TenantId tenantId, EntityId entityId, AttributeScope attributeScope, List<String> keys);
 
+    List<ListenableFuture<TbPair<String, Long>>> removeAllWithVersions(TenantId tenantId, EntityId entityId, AttributeScope attributeScope, List<String> keys);
+
     List<String> findAllKeysByDeviceProfileId(TenantId tenantId, DeviceProfileId deviceProfileId);
 
     List<String> findAllKeysByEntityIds(TenantId tenantId, List<EntityId> entityIds);

dao/src/main/java/org/thingsboard/server/dao/attributes/CachedAttributesService.java

@@ -27,13 +27,14 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Primary;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.cache.TbCacheValueWrapper;
-import org.thingsboard.server.cache.TbTransactionalCache;
+import org.thingsboard.server.cache.VersionedTbTransactionalCache;
 import org.thingsboard.server.common.data.AttributeScope;
 import org.thingsboard.server.common.data.StringUtils;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
+import org.thingsboard.server.common.data.util.TbPair;
 import org.thingsboard.server.common.stats.DefaultCounter;
 import org.thingsboard.server.common.stats.StatsFactory;
 import org.thingsboard.server.dao.cache.CacheExecutorService;
@@ -67,7 +68,7 @@ public class CachedAttributesService implements AttributesService {
     private final CacheExecutorService cacheExecutorService;
     private final DefaultCounter hitCounter;
     private final DefaultCounter missCounter;
-    private final TbTransactionalCache<AttributeCacheKey, AttributeKvEntry> cache;
+    private final VersionedTbTransactionalCache<AttributeCacheKey, AttributeKvEntry> cache;
     private ListeningExecutorService cacheExecutor;
 
     @Value("${cache.type:caffeine}")
@@ -79,7 +80,7 @@ public class CachedAttributesService implements AttributesService {
                                    JpaExecutorService jpaExecutorService,
                                    StatsFactory statsFactory,
                                    CacheExecutorService cacheExecutorService,
-                                   TbTransactionalCache<AttributeCacheKey, AttributeKvEntry> cache) {
+                                   VersionedTbTransactionalCache<AttributeCacheKey, AttributeKvEntry> cache) {
         this.attributesDao = attributesDao;
         this.jpaExecutorService = jpaExecutorService;
         this.cacheExecutorService = cacheExecutorService;
@@ -122,17 +123,9 @@ public class CachedAttributesService implements AttributesService {
                 return Optional.ofNullable(cachedAttributeKvEntry);
             } else {
                 missCounter.increment();
-                var cacheTransaction = cache.newTransactionForKey(attributeCacheKey);
+                Optional<AttributeKvEntry> result = attributesDao.find(tenantId, entityId, scope, attributeKey);
-                try {
+                cache.put(attributeCacheKey, result.orElse(null));
-                    Optional<AttributeKvEntry> result = attributesDao.find(tenantId, entityId, scope, attributeKey);
+                return result;
-                    cacheTransaction.putIfAbsent(attributeCacheKey, result.orElse(null));
-                    cacheTransaction.commit();
-                    return result;
-                } catch (Throwable e) {
-                    cacheTransaction.rollback();
-                    log.debug("Could not find attribute from cache: [{}] [{}] [{}]", entityId, scope, attributeKey, e);
-                    throw e;
-                }
             }
         });
     }
@@ -163,28 +156,19 @@ public class CachedAttributesService implements AttributesService {
 
                     // DB call should run in DB executor, not in cache-related executor
                     return jpaExecutorService.submit(() -> {
-                        var cacheTransaction = cache.newTransactionForKeys(notFoundKeys);
+                        log.trace("[{}][{}] Lookup attributes from db: {}", entityId, scope, notFoundAttributeKeys);
-                        try {
+                        List<AttributeKvEntry> result = attributesDao.find(tenantId, entityId, scope, notFoundAttributeKeys);
-                            log.trace("[{}][{}] Lookup attributes from db: {}", entityId, scope, notFoundAttributeKeys);
+                        for (AttributeKvEntry foundInDbAttribute : result) {
-                            List<AttributeKvEntry> result = attributesDao.find(tenantId, entityId, scope, notFoundAttributeKeys);
+                            put(entityId, scope, foundInDbAttribute, foundInDbAttribute.getVersion());
-                            for (AttributeKvEntry foundInDbAttribute : result) {
+                            notFoundAttributeKeys.remove(foundInDbAttribute.getKey());
-                                AttributeCacheKey attributeCacheKey = new AttributeCacheKey(scope, entityId, foundInDbAttribute.getKey());
-                                cacheTransaction.putIfAbsent(attributeCacheKey, foundInDbAttribute);
-                                notFoundAttributeKeys.remove(foundInDbAttribute.getKey());
-                            }
-                            for (String key : notFoundAttributeKeys) {
-                                cacheTransaction.putIfAbsent(new AttributeCacheKey(scope, entityId, key), null);
-                            }
-                            List<AttributeKvEntry> mergedAttributes = new ArrayList<>(cachedAttributes);
-                            mergedAttributes.addAll(result);
-                            cacheTransaction.commit();
-                            log.trace("[{}][{}] Commit cache transaction: {}", entityId, scope, notFoundAttributeKeys);
-                            return mergedAttributes;
-                        } catch (Throwable e) {
-                            cacheTransaction.rollback();
-                            log.debug("Could not find attributes from cache: [{}] [{}] [{}]", entityId, scope, notFoundAttributeKeys, e);
-                            throw e;
                         }
+                        for (String key : notFoundAttributeKeys) {
+                            cache.put(new AttributeCacheKey(scope, entityId, key), null);
+                        }
+                        List<AttributeKvEntry> mergedAttributes = new ArrayList<>(cachedAttributes);
+                        mergedAttributes.addAll(result);
+                        log.trace("[{}][{}] Commit cache transaction: {}", entityId, scope, notFoundAttributeKeys);
+                        return mergedAttributes;
                     });
 
                 }, MoreExecutors.directExecutor()); // cacheExecutor analyse and returns results or submit to DB executor
@@ -235,7 +219,7 @@ public class CachedAttributesService implements AttributesService {
         validate(entityId, scope);
         AttributeUtils.validate(attribute, valueNoXssValidation);
         ListenableFuture<Long> future = attributesDao.save(tenantId, entityId, scope, attribute);
-        return Futures.transform(future, version -> evict(entityId, scope, attribute, version), cacheExecutor);
+        return Futures.transform(future, version -> put(entityId, scope, attribute, version), cacheExecutor);
     }
 
     @Override
@@ -251,17 +235,17 @@ public class CachedAttributesService implements AttributesService {
         List<ListenableFuture<Long>> futures = new ArrayList<>(attributes.size());
         for (var attribute : attributes) {
             ListenableFuture<Long> future = attributesDao.save(tenantId, entityId, scope, attribute);
-            futures.add(Futures.transform(future, version -> evict(entityId, scope, attribute, version), cacheExecutor));
+            futures.add(Futures.transform(future, version -> put(entityId, scope, attribute, version), cacheExecutor));
         }
 
         return Futures.allAsList(futures);
     }
 
-    private Long evict(EntityId entityId, AttributeScope scope, AttributeKvEntry attribute, Long version) {
+    private Long put(EntityId entityId, AttributeScope scope, AttributeKvEntry attribute, Long version) {
         String key = attribute.getKey();
-        log.trace("[{}][{}][{}] Before cache evict: {}", entityId, scope, key, attribute);
+        log.trace("[{}][{}][{}] Before cache put: {}", entityId, scope, key, attribute);
-        cache.evictOrPut(new AttributeCacheKey(scope, entityId, key), attribute);
+        cache.put(new AttributeCacheKey(scope, entityId, key), attribute, version);
-        log.trace("[{}][{}][{}] after cache evict.", entityId, scope, key);
+        log.trace("[{}][{}][{}] after cache put.", entityId, scope, key);
         return version;
     }
 
@@ -273,9 +257,10 @@ public class CachedAttributesService implements AttributesService {
     @Override
     public ListenableFuture<List<String>> removeAll(TenantId tenantId, EntityId entityId, AttributeScope scope, List<String> attributeKeys) {
         validate(entityId, scope);
-        List<ListenableFuture<String>> futures = attributesDao.removeAll(tenantId, entityId, scope, attributeKeys);
+        List<ListenableFuture<TbPair<String, Long>>> futures = attributesDao.removeAllWithVersions(tenantId, entityId, scope, attributeKeys);
-        return Futures.allAsList(futures.stream().map(future -> Futures.transform(future, key -> {
+        return Futures.allAsList(futures.stream().map(future -> Futures.transform(future, keyVersionPair -> {
-            cache.evict(new AttributeCacheKey(scope, entityId, key));
+            String key = keyVersionPair.getFirst();
+            cache.evict(new AttributeCacheKey(scope, entityId, key), keyVersionPair.getSecond());
             return key;
         }, cacheExecutor)).collect(Collectors.toList()));
     }

dao/src/main/java/org/thingsboard/server/dao/model/BaseVersionedEntity.java

@@ -0,0 +1,20 @@
+/**
+ * Copyright © 2016-2024 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.dao.model;
+
+public interface BaseVersionedEntity {
+    long getVersion();
+}

dao/src/main/java/org/thingsboard/server/dao/model/ModelConstants.java

@@ -56,6 +56,7 @@ public class ModelConstants {
     public static final String ATTRIBUTE_TYPE_COLUMN = "attribute_type";
     public static final String ATTRIBUTE_KEY_COLUMN = "attribute_key";
     public static final String LAST_UPDATE_TS_COLUMN = "last_update_ts";
+    public static final String VERSION_COLUMN = "version";
 
     /**
      * User constants.

dao/src/main/java/org/thingsboard/server/dao/model/sql/AttributeKvEntity.java

@@ -16,6 +16,7 @@
 package org.thingsboard.server.dao.model.sql;
 
 import lombok.Data;
+import lombok.EqualsAndHashCode;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
 import org.thingsboard.server.common.data.kv.BaseAttributeKvEntry;
 import org.thingsboard.server.common.data.kv.BooleanDataEntry;
@@ -41,9 +42,10 @@ import static org.thingsboard.server.dao.model.ModelConstants.LONG_VALUE_COLUMN;
 import static org.thingsboard.server.dao.model.ModelConstants.STRING_VALUE_COLUMN;
 
 @Data
+@EqualsAndHashCode(callSuper = true)
 @Entity
 @Table(name = "attribute_kv")
-public class AttributeKvEntity implements ToData<AttributeKvEntry>, Serializable {
+public class AttributeKvEntity extends VersionedEntity implements ToData<AttributeKvEntry>, Serializable {
 
     @EmbeddedId
     private AttributeKvCompositeKey id;
@@ -84,6 +86,6 @@ public class AttributeKvEntity implements ToData<AttributeKvEntry>, Serializable
             kvEntry = new JsonDataEntry(strKey, jsonValue);
         }
 
-        return new BaseAttributeKvEntry(kvEntry, lastUpdateTs);
+        return new BaseAttributeKvEntry(kvEntry, lastUpdateTs, version);
     }
 }

dao/src/main/java/org/thingsboard/server/dao/model/sql/VersionedEntity.java

@@ -0,0 +1,30 @@
+/**
+ * Copyright © 2016-2024 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.dao.model.sql;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.MappedSuperclass;
+import lombok.Data;
+
+import static org.thingsboard.server.dao.model.ModelConstants.VERSION_COLUMN;
+
+@Data
+@MappedSuperclass
+public abstract class VersionedEntity {
+
+    @Column(name = VERSION_COLUMN)
+    protected Long version;
+}

dao/src/main/java/org/thingsboard/server/dao/sql/attributes/AttributeKvInsertRepository.java

@@ -31,14 +31,14 @@ import java.util.List;
 @SqlDao
 public class AttributeKvInsertRepository extends AbstractVersionedInsertRepository<AttributeKvEntity> {
 
-    private static final String BATCH_UPDATE = "UPDATE attribute_kv SET str_v = ?, long_v = ?, dbl_v = ?, bool_v = ?, json_v =  cast(? AS json), last_update_ts = ?, version = version + 1 " +
+    private static final String BATCH_UPDATE = "UPDATE attribute_kv SET str_v = ?, long_v = ?, dbl_v = ?, bool_v = ?, json_v =  cast(? AS json), last_update_ts = ?, version = nextval('attribute_kv_version_seq') " +
             "WHERE entity_id = ? and attribute_type =? and attribute_key = ? RETURNING version;";
 
     private static final String INSERT_OR_UPDATE =
-            "INSERT INTO attribute_kv (entity_id, attribute_type, attribute_key, str_v, long_v, dbl_v, bool_v, json_v, last_update_ts) " +
+            "INSERT INTO attribute_kv (entity_id, attribute_type, attribute_key, str_v, long_v, dbl_v, bool_v, json_v, last_update_ts, version) " +
-                    "VALUES(?, ?, ?, ?, ?, ?, ?,  cast(? AS json), ?) " +
+                    "VALUES(?, ?, ?, ?, ?, ?, ?,  cast(? AS json), ?, nextval('attribute_kv_version_seq')) " +
                     "ON CONFLICT (entity_id, attribute_type, attribute_key) " +
-                    "DO UPDATE SET str_v = ?, long_v = ?, dbl_v = ?, bool_v = ?, json_v =  cast(? AS json), last_update_ts = ?, version = attribute_kv.version + 1 RETURNING version;";
+                    "DO UPDATE SET str_v = ?, long_v = ?, dbl_v = ?, bool_v = ?, json_v =  cast(? AS json), last_update_ts = ?, version = nextval('attribute_kv_version_seq') RETURNING version;";
 
     @Override
     protected void setOnBatchUpdateValues(PreparedStatement ps, int i, List<AttributeKvEntity> entities) throws SQLException {

dao/src/main/java/org/thingsboard/server/dao/sql/attributes/AttributeKvRepository.java

@@ -30,15 +30,15 @@ public interface AttributeKvRepository extends JpaRepository<AttributeKvEntity,
 
     @Query("SELECT a FROM AttributeKvEntity a WHERE a.id.entityId = :entityId " +
             "AND a.id.attributeType = :attributeType")
-    List<AttributeKvEntity> findAllEntityIdAndAttributeType(@Param("entityId") UUID entityId,
+    List<AttributeKvEntity> findAllByEntityIdAndAttributeType(@Param("entityId") UUID entityId,
-                                                            @Param("attributeType") int attributeType);
+                                                              @Param("attributeType") int attributeType);
 
     @Transactional
     @Modifying
-    @Query("DELETE FROM AttributeKvEntity a WHERE a.id.entityId = :entityId " +
+    @Query(value = "DELETE FROM attribute_kv WHERE entity_id = :entityId " +
-            "AND a.id.attributeType = :attributeType " +
+            "AND attribute_type = :attributeType " +
-            "AND a.id.attributeKey = :attributeKey")
+            "AND attribute_key = :attributeKey RETURNING version", nativeQuery = true)
-    void delete(@Param("entityId") UUID entityId,
+    Long delete(@Param("entityId") UUID entityId,
                 @Param("attributeType") int attributeType,
                 @Param("attributeKey") int attributeKey);
 

dao/src/main/java/org/thingsboard/server/dao/sql/attributes/JpaAttributeDao.java

@@ -30,6 +30,7 @@ import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.kv.AttributeKvEntry;
+import org.thingsboard.server.common.data.util.TbPair;
 import org.thingsboard.server.common.stats.StatsFactory;
 import org.thingsboard.server.dao.DaoUtil;
 import org.thingsboard.server.dao.attributes.AttributesDao;
@@ -144,7 +145,7 @@ public class JpaAttributeDao extends JpaAbstractDaoListeningExecutorService impl
 
     @Override
     public List<AttributeKvEntry> findAll(TenantId tenantId, EntityId entityId, AttributeScope attributeScope) {
-        List<AttributeKvEntity> attributes = attributeKvRepository.findAllEntityIdAndAttributeType(
+        List<AttributeKvEntity> attributes = attributeKvRepository.findAllByEntityIdAndAttributeType(
                 entityId.getId(),
                 attributeScope.getId());
         attributes.forEach(attributeKvEntity -> attributeKvEntity.setStrKey(keyDictionaryDao.getKey(attributeKvEntity.getId().getAttributeKey())));
@@ -205,6 +206,18 @@ public class JpaAttributeDao extends JpaAbstractDaoListeningExecutorService impl
         return futuresList;
     }
 
+    @Override
+    public List<ListenableFuture<TbPair<String, Long>>> removeAllWithVersions(TenantId tenantId, EntityId entityId, AttributeScope attributeScope, List<String> keys) {
+        List<ListenableFuture<TbPair<String, Long>>> futuresList = new ArrayList<>(keys.size());
+        for (String key : keys) {
+            futuresList.add(service.submit(() -> {
+                Long version = attributeKvRepository.delete(entityId.getId(), attributeScope.getId(), keyDictionaryDao.getOrSaveKeyId(key));
+                return TbPair.of(key, version);
+            }));
+        }
+        return futuresList;
+    }
+
     @Transactional
     @Override
     public List<Pair<AttributeScope, String>> removeAllByEntityId(TenantId tenantId, EntityId entityId) {

dao/src/main/java/org/thingsboard/server/dao/sqlts/insert/latest/sql/SqlLatestInsertTsRepository.java

@@ -40,11 +40,11 @@ public class SqlLatestInsertTsRepository extends AbstractVersionedInsertReposito
     private Boolean updateByLatestTs;
 
     private static final String BATCH_UPDATE =
-            "UPDATE ts_kv_latest SET ts = ?, bool_v = ?, str_v = ?, long_v = ?, dbl_v = ?, json_v = cast(? AS json), version = version + 1 WHERE entity_id = ? AND key = ?";
+            "UPDATE ts_kv_latest SET ts = ?, bool_v = ?, str_v = ?, long_v = ?, dbl_v = ?, json_v = cast(? AS json), version = nextval('ts_kv_latest_version_seq') WHERE entity_id = ? AND key = ?";
 
     private static final String INSERT_OR_UPDATE =
-            "INSERT INTO ts_kv_latest (entity_id, key, ts, bool_v, str_v, long_v, dbl_v,  json_v) VALUES(?, ?, ?, ?, ?, ?, ?, cast(? AS json)) " +
+            "INSERT INTO ts_kv_latest (entity_id, key, ts, bool_v, str_v, long_v, dbl_v,  json_v, version) VALUES(?, ?, ?, ?, ?, ?, ?, cast(? AS json), nextval('ts_kv_latest_version_seq')) " +
-                    "ON CONFLICT (entity_id, key) DO UPDATE SET ts = ?, bool_v = ?, str_v = ?, long_v = ?, dbl_v = ?, json_v = cast(? AS json), version = ts_kv_latest.version + 1";
+                    "ON CONFLICT (entity_id, key) DO UPDATE SET ts = ?, bool_v = ?, str_v = ?, long_v = ?, dbl_v = ?, json_v = cast(? AS json), version = nextval('ts_kv_latest_version_seq')";
 
     private static final String BATCH_UPDATE_BY_LATEST_TS = BATCH_UPDATE + " AND ts_kv_latest.ts <= ?";
 

dao/src/main/resources/sql/schema-entities.sql

@@ -102,6 +102,8 @@ CREATE TABLE IF NOT EXISTS audit_log (
     action_failure_details varchar(1000000)
 ) PARTITION BY RANGE (created_time);
 
+CREATE SEQUENCE IF NOT EXISTS attribute_kv_version_seq cache 1000;
+
 CREATE TABLE IF NOT EXISTS attribute_kv (
   entity_id uuid,
   attribute_type int,
@@ -112,7 +114,7 @@ CREATE TABLE IF NOT EXISTS attribute_kv (
   dbl_v double precision,
   json_v json,
   last_update_ts bigint,
-  version bigint default 0,
+  version bigint default 1,
   CONSTRAINT attribute_kv_pkey PRIMARY KEY (entity_id, attribute_type, attribute_key)
 );
 
@@ -539,6 +541,8 @@ CREATE TABLE IF NOT EXISTS entity_view (
     CONSTRAINT entity_view_external_id_unq_key UNIQUE (tenant_id, external_id)
 );
 
+CREATE SEQUENCE IF NOT EXISTS ts_kv_latest_version_seq cache 1000;
+
 CREATE TABLE IF NOT EXISTS ts_kv_latest
 (
     entity_id uuid   NOT NULL,
@@ -549,7 +553,7 @@ CREATE TABLE IF NOT EXISTS ts_kv_latest
     long_v    bigint,
     dbl_v     double precision,
     json_v    json,
-    version bigint default 0,
+    version bigint default 1,
     CONSTRAINT ts_kv_latest_pkey PRIMARY KEY (entity_id, key)
 );
 

dao/src/main/resources/sql/schema-timescale.sql

@@ -34,6 +34,8 @@ CREATE TABLE IF NOT EXISTS key_dictionary (
     CONSTRAINT key_dictionary_id_pkey PRIMARY KEY (key)
 );
 
+CREATE SEQUENCE IF NOT EXISTS ts_kv_latest_version_seq cache 1000;
+
 CREATE TABLE IF NOT EXISTS ts_kv_latest (
     entity_id uuid NOT NULL,
     key int NOT NULL,
@@ -43,7 +45,7 @@ CREATE TABLE IF NOT EXISTS ts_kv_latest (
     long_v bigint,
     dbl_v double precision,
     json_v json,
-    version bigint default 0,
+    version bigint default 1,
     CONSTRAINT ts_kv_latest_pkey PRIMARY KEY (entity_id, key)
 );
 

dao/src/main/resources/sql/schema-ts-latest-psql.sql

@@ -14,6 +14,8 @@
 -- limitations under the License.
 --
 
+CREATE SEQUENCE IF NOT EXISTS ts_kv_latest_version_seq cache 1000;
+
 CREATE TABLE IF NOT EXISTS ts_kv_latest
 (
     entity_id uuid   NOT NULL,
@@ -24,6 +26,6 @@ CREATE TABLE IF NOT EXISTS ts_kv_latest
     long_v    bigint,
     dbl_v     double precision,
     json_v    json,
-    version bigint default 0,
+    version bigint default 1,
     CONSTRAINT ts_kv_latest_pkey PRIMARY KEY (entity_id, key)
 );

dao/src/test/resources/sql/psql/drop-all-tables.sql

@@ -23,6 +23,7 @@ DROP TABLE IF EXISTS alarm_type;
 DROP TABLE IF EXISTS asset;
 DROP TABLE IF EXISTS audit_log;
 DROP TABLE IF EXISTS attribute_kv;
+DROP SEQUENCE IF EXISTS attribute_kv_version_seq;
 DROP TABLE IF EXISTS component_descriptor;
 DROP TABLE IF EXISTS customer;
 DROP TABLE IF EXISTS device;
@@ -36,6 +37,7 @@ DROP TABLE IF EXISTS relation;
 DROP TABLE IF EXISTS tenant;
 DROP TABLE IF EXISTS ts_kv;
 DROP TABLE IF EXISTS ts_kv_latest;
+DROP SEQUENCE IF EXISTS ts_kv_latest_version_seq;
 DROP TABLE IF EXISTS ts_kv_dictionary;
 DROP TABLE IF EXISTS user_credentials;
 DROP TABLE IF EXISTS widgets_bundle_widget;