Merge remote-tracking branch 'origin/feature/checkpoint_table_improvements' into feature/checkpoint_table_improvements

core/src/main/kotlin/net/corda/core/internal/FlowIORequest.kt

@@ -45,6 +45,7 @@ sealed class FlowIORequest<out R : Any> {
      * @property shouldRetrySend specifies whether the send should be retried.
      * @return a map from session to received message.
      */
+    //net.corda.core.internal.FlowIORequest.SendAndReceive
     data class SendAndReceive(
             val sessionToMessage: Map<FlowSession, SerializedBytes<Any>>,
             val shouldRetrySend: Boolean
@@ -80,7 +81,15 @@ sealed class FlowIORequest<out R : Any> {
     /**
      * Suspend the flow until all Initiating sessions are confirmed.
      */
-    object WaitForSessionConfirmations : FlowIORequest<Unit>()
+    class WaitForSessionConfirmations : FlowIORequest<Unit>() {
+        override fun equals(other: Any?): Boolean {
+            return this === other
+        }
+
+        override fun hashCode(): Int {
+            return System.identityHashCode(this)
+        }
+    }
 
     /**
      * Execute the specified [operation], suspend the flow until completion.

node/src/main/kotlin/net/corda/node/services/persistence/DBCheckpointStorage.kt

@@ -1,7 +1,9 @@
 package net.corda.node.services.persistence
 
 import net.corda.core.flows.StateMachineRunId
+import net.corda.core.internal.FlowIORequest
 import net.corda.core.serialization.SerializedBytes
+import net.corda.core.utilities.ProgressTracker
 import net.corda.core.utilities.debug
 import net.corda.node.services.api.CheckpointStorage
 import net.corda.node.services.statemachine.Checkpoint
@@ -16,8 +18,14 @@ import javax.persistence.Column
 import javax.persistence.Entity
 import javax.persistence.Id
 import org.hibernate.annotations.Type
+import java.lang.Exception
+import java.math.BigInteger
 import java.sql.Connection
 import java.sql.SQLException
+import java.time.Instant
+import javax.persistence.FetchType
+import javax.persistence.JoinColumn
+import javax.persistence.OneToOne
 
 /**
  * Simple checkpoint key value storage in DB.
@@ -25,6 +33,156 @@ import java.sql.SQLException
 class DBCheckpointStorage : CheckpointStorage {
     val log: Logger = LoggerFactory.getLogger(this::class.java)
 
+    enum class FlowStatus {
+        RUNNABLE,
+        FAILED,
+        COMPLETED,
+        HOSPITALIZED,
+        KILLED,
+        PAUSED
+    }
+
+    enum class StartReason {
+        RPC, FLOW, SERVICE, SCHEDULED, INITIATED
+    }
+
+    @Entity
+    @javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}checkpoints_new")
+    class DBFlowCheckpoint(
+            @Id
+            @Column(name = "flow_id", length = 64, nullable = false)
+            var id: String,
+
+            @OneToOne(fetch = FetchType.LAZY)
+            @JoinColumn(name = "checkpoint_blob_id", referencedColumnName = "id")
+            var blob: DBFlowCheckpointBlob,
+
+            @OneToOne(fetch = FetchType.LAZY)
+            @JoinColumn(name = "result_id", referencedColumnName = "id")
+            var result: DBFlowResult?,
+
+            @OneToOne(fetch = FetchType.LAZY)
+            @JoinColumn(name = "error_id", referencedColumnName = "id")
+            var exceptionDetails: DBFlowException?,
+
+            @OneToOne(fetch = FetchType.LAZY)
+            @JoinColumn(name = "flow_id", referencedColumnName = "flow_id")
+            var flowMetadata: DBFlowMetadata,
+
+            @Column(name = "status")
+            var status: FlowStatus,
+
+            @Column(name = "compatible")
+            var compatible: Boolean,
+
+            @Column(name = "progress_step")
+            var progressStep: String,
+
+            @Column(name = "flow_io_request")
+            var ioRequestType: Class<FlowIORequest<*>>,
+
+            @Column(name = "timestamp")
+            var checkpointInstant: Instant
+    )
+
+    @Entity
+    @javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}checkpoints_blobs")
+    class DBFlowCheckpointBlob(
+            @Id
+            @Column(name = "id", nullable = false)
+            var id: BigInteger? = null,
+
+            @Type(type = "corda-blob")
+            @Column(name = "checkpoint_value", nullable = false)
+            var checkpoint: ByteArray = EMPTY_BYTE_ARRAY,
+
+            @Type(type = "corda-blob")
+            @Column(name = "flow_state", nullable = false)
+            var flowStack: ByteArray = EMPTY_BYTE_ARRAY,
+
+            @Column(name = "timestamp")
+            var persistedInstant: Instant? = null
+    )
+
+    @Entity
+    @javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}flow_results")
+    class DBFlowResult(
+            @Id
+            @Column(name = "id", nullable = false)
+            var id: BigInteger? = null,
+
+            @Type(type = "corda-blob")
+            @Column(name = "result_value", nullable = false)
+            var checkpoint: ByteArray = EMPTY_BYTE_ARRAY,
+
+            @Column(name = "timestamp")
+            val persistedInstant: Instant? = null
+    )
+
+    @Entity
+    @javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}flow_exceptions")
+    class DBFlowException(
+            @Id
+            @Column(name = "id", nullable = false)
+            var id: BigInteger? = null,
+
+            @Column(name = "type", nullable = false)
+            var type: Class<Exception>,
+
+            @Type(type = "corda-blob")
+            @Column(name = "exception_value", nullable = false)
+            var value: ByteArray = EMPTY_BYTE_ARRAY,
+
+            @Column(name = "exception_message")
+            var message: String? = null,
+
+            @Column(name = "timestamp")
+            val persistedInstant: Instant? = null
+    )
+
+    @Entity
+    @javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}flow_metadata")
+    class DBFlowMetadata(
+
+            @Id
+            @Column(name = "flow_id", length = 64, nullable = false)
+            var flowId: String,
+
+            @Column(name = "flow_name", nullable = false)
+            var flowName: String,
+
+            @Column(name = "flow_identifier", nullable = true)
+            var userSuppliedIdentifier: String?,
+
+            @Column(name = "started_type", nullable = false)
+            var startType: StartReason,
+
+            @Column(name = "flow_parameters", nullable = false)
+            var initialParameters: ByteArray = EMPTY_BYTE_ARRAY,
+
+            @Column(name = "cordapp_name", nullable = false)
+            var launchingCordapp: String,
+
+            @Column(name = "platform_version", nullable = false)
+            var platformVersion: Int,
+
+            @Column(name = "rpc_user", nullable = false)
+            var rpcUsername: String,
+
+            @Column(name = "invocation_time", nullable = false)
+            var invocationInstant: Instant,
+
+            @Column(name = "received_time", nullable = false)
+            var receivedInstant: Instant,
+
+            @Column(name = "start_time", nullable = true)
+            var startInstant: Instant?,
+
+            @Column(name = "finish_time", nullable = true)
+            var finishInstant: Instant?
+
+    )
+
     @Entity
     @javax.persistence.Table(name = "${NODE_DATABASE_PREFIX}checkpoints")
     class DBCheckpoint(
@@ -35,10 +193,10 @@ class DBCheckpointStorage : CheckpointStorage {
 
             @Type(type = "corda-blob")
             @Column(name = "checkpoint_value", nullable = false)
-            var checkpoint: ByteArray = EMPTY_BYTE_ARRAY          
+            var checkpoint: ByteArray = EMPTY_BYTE_ARRAY
     ) {
-	    override fun toString() = "DBCheckpoint(checkpointId = ${checkpointId}, checkpointSize = ${checkpoint.size})"
-      }
+        override fun toString() = "DBCheckpoint(checkpointId = ${checkpointId}, checkpointSize = ${checkpoint.size})"
+    }
 
     override fun addCheckpoint(id: StateMachineRunId, checkpoint: SerializedBytes<Checkpoint>) {
         currentDBSession().save(DBCheckpoint().apply {
@@ -56,7 +214,6 @@ class DBCheckpointStorage : CheckpointStorage {
         })
     }
 
-
     override fun removeCheckpoint(id: StateMachineRunId): Boolean {
         val session = currentDBSession()
         val criteriaBuilder = session.criteriaBuilder

node/src/main/kotlin/net/corda/node/services/schema/NodeSchemaService.kt

@@ -34,6 +34,14 @@ class NodeSchemaService(private val extraSchemas: Set<MappedSchema> = emptySet()
 
     object NodeCoreV1 : MappedSchema(schemaFamily = NodeCore.javaClass, version = 1,
             mappedTypes = listOf(DBCheckpointStorage.DBCheckpoint::class.java,
+
+                    //new checkpoints - keeping old around to allow testing easily (for now)
+                    DBCheckpointStorage.DBFlowCheckpoint::class.java,
+                    DBCheckpointStorage.DBFlowCheckpointBlob::class.java,
+                    DBCheckpointStorage.DBFlowResult::class.java,
+                    DBCheckpointStorage.DBFlowException::class.java,
+                    DBCheckpointStorage.DBFlowMetadata::class.java,
+
                     DBTransactionStorage.DBTransaction::class.java,
                     BasicHSMKeyManagementService.PersistentKey::class.java,
                     NodeSchedulerService.PersistentScheduledState::class.java,

node/src/main/kotlin/net/corda/node/services/statemachine/FlowMonitor.kt

@@ -81,7 +81,7 @@ internal class FlowMonitor(
                 is FlowIORequest.WaitForLedgerCommit -> "for the ledger to commit transaction with hash ${request.hash}"
                 is FlowIORequest.GetFlowInfo -> "to get flow information from parties ${request.sessions.partiesInvolved()}"
                 is FlowIORequest.Sleep -> "to wake up from sleep ending at ${LocalDateTime.ofInstant(request.wakeUpAfter, ZoneId.systemDefault())}"
-                FlowIORequest.WaitForSessionConfirmations -> "for sessions to be confirmed"
+                is FlowIORequest.WaitForSessionConfirmations -> "for sessions to be confirmed"
                 is FlowIORequest.ExecuteAsyncOperation -> "for asynchronous operation of type ${request.operation::javaClass} to complete"
                 FlowIORequest.ForceCheckpoint -> "for forcing a checkpoint at an arbitrary point in a flow"
             }

node/src/main/kotlin/net/corda/node/services/statemachine/FlowStateMachineImpl.kt

@@ -269,7 +269,7 @@ class FlowStateMachineImpl<R>(override val id: StateMachineRunId,
             Thread.currentThread().contextClassLoader = (serviceHub.cordappProvider as CordappProviderImpl).cordappLoader.appClassLoader
 
             val result = logic.call()
-            suspend(FlowIORequest.WaitForSessionConfirmations, maySkipCheckpoint = true)
+            suspend(FlowIORequest.WaitForSessionConfirmations(), maySkipCheckpoint = true)
             Try.Success(result)
         } catch (t: Throwable) {
             if(t.isUnrecoverable()) {

node/src/main/kotlin/net/corda/node/services/statemachine/SingleThreadedStateMachineManager.kt

@@ -370,11 +370,11 @@ class SingleThreadedStateMachineManager(
                 }
                 // Resurrect flow
                 createFlowFromCheckpoint(
-                    id = flowId,
-                    serializedCheckpoint = serializedCheckpoint,
-                    initialDeduplicationHandler = null,
-                    isAnyCheckpointPersisted = true,
-                    isStartIdempotent = false
+                        id = flowId,
+                        serializedCheckpoint = serializedCheckpoint,
+                        initialDeduplicationHandler = null,
+                        isAnyCheckpointPersisted = true,
+                        isStartIdempotent = false
                 ) ?: return
             } else {
                 // Just flow initiation message
@@ -409,9 +409,9 @@ class SingleThreadedStateMachineManager(
             // Failed to retry - manually put the flow in for observation rather than
             // relying on the [HospitalisingInterceptor] to do so
             val exceptions = (currentState.checkpoint.errorState as? ErrorState.Errored)
-                ?.errors
-                ?.map { it.exception }
-                ?.plus(e) ?: emptyList()
+                    ?.errors
+                    ?.map { it.exception }
+                    ?.plus(e) ?: emptyList()
             logger.info("Failed to retry flow $flowId, keeping in for observation and aborting")
             flowHospital.forceIntoOvernightObservation(flowId, exceptions)
             throw e
@@ -431,11 +431,11 @@ class SingleThreadedStateMachineManager(
 
     private fun <T> onExternalStartFlow(event: ExternalEvent.ExternalStartFlowEvent<T>) {
         val future = startFlow(
-            event.flowId,
-            event.flowLogic,
-            event.context,
-            ourIdentity = null,
-            deduplicationHandler = event.deduplicationHandler
+                event.flowId,
+                event.flowLogic,
+                event.context,
+                ourIdentity = null,
+                deduplicationHandler = event.deduplicationHandler
         )
         event.wireUpFuture(future)
     }
@@ -503,14 +503,14 @@ class SingleThreadedStateMachineManager(
                 is InitiatedFlowFactory.CorDapp -> null
             }
             startInitiatedFlow(
-                event.flowId,
-                flowLogic,
-                event.deduplicationHandler,
-                senderSession,
-                initiatedSessionId,
-                sessionMessage,
-                senderCoreFlowVersion,
-                initiatedFlowInfo
+                    event.flowId,
+                    flowLogic,
+                    event.deduplicationHandler,
+                    senderSession,
+                    initiatedSessionId,
+                    sessionMessage,
+                    senderCoreFlowVersion,
+                    initiatedFlowInfo
             )
         } catch (t: Throwable) {
             logger.warn("Unable to initiate flow from $sender (appName=${sessionMessage.appName} " +
@@ -605,13 +605,13 @@ class SingleThreadedStateMachineManager(
             null
         }
         val checkpoint = existingCheckpoint ?: Checkpoint.create(
-            invocationContext,
-            flowStart,
-            flowLogic.javaClass,
-            frozenFlowLogic,
-            ourIdentity,
-            flowCorDappVersion,
-            flowLogic.isEnabledTimedFlow()
+                invocationContext,
+                flowStart,
+                flowLogic.javaClass,
+                frozenFlowLogic,
+                ourIdentity,
+                flowCorDappVersion,
+                flowLogic.isEnabledTimedFlow()
         ).getOrThrow()
 
         val startedFuture = openFuture<Unit>()

node/src/main/resources/migration/node-core.changelog-master.xml

@@ -31,4 +31,8 @@
 
     <include file="migration/node-core.changelog-v14-data.xml"/>
 
+    <include file="migration/node-core.changelog-v17.xml"/>
+    <include file="migration/node-core.changelog-v17-postgres.xml"/>
+    <include file="migration/node-core.changelog-v17-keys.xml"/>
+
 </databaseChangeLog>

node/src/main/resources/migration/node-core.changelog-v17-keys.xml

@@ -0,0 +1,34 @@
+<?xml version="1.1" encoding="UTF-8" standalone="no"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.5.xsd"
+                   logicalFilePath="migration/node-services.changelog-init.xml">
+
+    <changeSet author="R3.Corda" id="add_new_checkpoint_schema_primary_keys">
+        <addPrimaryKey columnNames="flow_id" constraintName="node_checkpoints_pk" tableName="node_checkpoints_new"/>
+        <addPrimaryKey columnNames="id" constraintName="node_checkpoint_blobs_pk" tableName="node_checkpoint_blobs"/>
+        <addPrimaryKey columnNames="id" constraintName="node_checkpoint_exceptions_pk" tableName="node_flow_exceptions"/>
+        <addPrimaryKey columnNames="id" constraintName="node_checkpoint_results_pk" tableName="node_flow_results"/>
+        <addPrimaryKey columnNames="invocation_id" constraintName="node_flow_metadata_pk" tableName="node_flow_metadata"/>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_checkpoint_schema_foreign_keys">
+        <addForeignKeyConstraint baseColumnNames="checkpoint_blob_id" baseTableName="node_checkpoints_new"
+                                 constraintName="node_checkpoint_blob_id_to_blob_table_fk"
+                                 referencedColumnNames="id" referencedTableName="node_checkpoint_blobs"/>
+
+        <addForeignKeyConstraint baseColumnNames="error_id" baseTableName="node_checkpoints_new"
+                                 constraintName="node_checkpoints_to_exceptions_fk"
+                                 referencedColumnNames="id" referencedTableName="node_flow_exceptions"/>
+
+        <addForeignKeyConstraint baseColumnNames="result_id" baseTableName="node_checkpoints_new"
+                                 constraintName="node_checkpoint_to_result_fk"
+                                 referencedColumnNames="id" referencedTableName="node_flow_results"/>
+
+        <addForeignKeyConstraint baseColumnNames="flow_id" baseTableName="node_flow_metadata"
+                                 constraintName="node_metadata_to_checkpoints_fk"
+                                 referencedColumnNames="flow_id" referencedTableName="node_checkpoints_new"/>
+
+    </changeSet>
+
+</databaseChangeLog>

node/src/main/resources/migration/node-core.changelog-v17-postgres.xml

@@ -0,0 +1,139 @@
+<?xml version="1.1" encoding="UTF-8" standalone="no"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.5.xsd"
+                   logicalFilePath="migration/node-services.changelog-init.xml">
+
+    <changeSet author="R3.Corda" id="add_new_checkpoints_table-pg" dbms="postgresql">
+        <createTable tableName="node_checkpoints_new">
+            <column name="flow_id" type="NVARCHAR(64)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="checkpoint_blob_id" type="BIGINT">
+                <constraints nullable="true"/>
+            </column>
+            <column name="result_id" type="BIGINT">
+                <constraints nullable="true"/>
+            </column>
+            <column name="error_id" type="BIGINT">
+                <constraints nullable="true"/>
+            </column>
+            <column name="status" type="TINYINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="compatible" type="BOOLEAN">
+                <constraints nullable="false"/>
+            </column>
+            <column name="progress_step" type="NVARCHAR(256)">
+                <constraints nullable="true"/>
+            </column>
+            <!-- net.corda.core.internal.FlowIORequest.SendAndReceive -->
+            <column name="flow_io_request" type="NVARCHAR(128)">
+                <constraints nullable="true"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_checkpoint_blob_table-pg" dbms="postgresql">
+        <createTable tableName="node_checkpoint_blobs">
+            <column name="id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="checkpoint_value" type="varbinary(33554432)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_state" type="varbinary(33554432)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+            <column name="hmac" type="NVARCHAR(32)">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+
+    <changeSet author="R3.Corda" id="add_new_flow_result_table-pg" dbms="postgresql">
+        <createTable tableName="node_flow_results">
+            <column name="id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="result_value" type="varbinary(33554432)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_flow_exceptions_table-pg" dbms="postgresql">
+        <createTable tableName="node_flow_exceptions">
+            <column name="id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="type" type="NVARCHAR(256)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="exception_value" type="varbinary(33554432)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="exception_message" type="NVARCHAR(512)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_flow_metadata_table-pg" dbms="postgresql">
+        <createTable tableName="node_flow_metadata">
+            <column name="invocation_id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_id" type="NVARCHAR(64)">
+                <constraints nullable="true"/>
+            </column>
+            <column name="flow_name" type="NVARCHAR(128)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_identifier" type="NVARCHAR(512)">
+                <constraints nullable="true"/>
+            </column>
+            <column name="started_type" type="TINYINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_parameters" type="varbinary(33554432)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="cordapp_name" type="NVARCHAR(64)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="platform_version" type="TINYINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="rpc_user" type="NVARCHAR(64)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="invocation_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+            <column name="received_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+            <column name="start_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="true"/>
+            </column>
+            <column name="finish_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="true"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+</databaseChangeLog>

node/src/main/resources/migration/node-core.changelog-v17.xml

@@ -0,0 +1,139 @@
+<?xml version="1.1" encoding="UTF-8" standalone="no"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.5.xsd"
+                   logicalFilePath="migration/node-services.changelog-init.xml">
+
+    <changeSet author="R3.Corda" id="add_new_checkpoints_table" dbms="!postgresql">
+        <createTable tableName="node_checkpoints_new">
+            <column name="flow_id" type="NVARCHAR(64)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="checkpoint_blob_id" type="BIGINT">
+                <constraints nullable="true"/>
+            </column>
+            <column name="result_id" type="BIGINT">
+                <constraints nullable="true"/>
+            </column>
+            <column name="error_id" type="BIGINT">
+                <constraints nullable="true"/>
+            </column>
+            <column name="status" type="TINYINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="compatible" type="BOOLEAN">
+                <constraints nullable="false"/>
+            </column>
+            <column name="progress_step" type="NVARCHAR(256)">
+                <constraints nullable="true"/>
+            </column>
+            <!-- net.corda.core.internal.FlowIORequest.SendAndReceive -->
+            <column name="flow_io_request" type="NVARCHAR(128)">
+                <constraints nullable="true"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_checkpoint_blob_table" dbms="!postgresql">
+        <createTable tableName="node_checkpoint_blobs">
+            <column name="id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="checkpoint_value" type="blob">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_state" type="blob">
+                <constraints nullable="false"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+            <column name="hmac" type="NVARCHAR(32)">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+
+    <changeSet author="R3.Corda" id="add_new_flow_result_table" dbms="!postgresql">
+        <createTable tableName="node_flow_results">
+            <column name="id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="result_value" type="blob">
+                <constraints nullable="false"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_flow_exceptions_table" dbms="!postgresql">
+        <createTable tableName="node_flow_exceptions">
+            <column name="id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="type" type="NVARCHAR(256)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="exception_value" type="blob">
+                <constraints nullable="false"/>
+            </column>
+            <column name="exception_message" type="NVARCHAR(512)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="timestamp" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+    <changeSet author="R3.Corda" id="add_new_flow_metadata_table" dbms="!postgresql">
+        <createTable tableName="node_flow_metadata">
+            <column name="invocation_id" type="BIGINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_id" type="NVARCHAR(64)">
+                <constraints nullable="true"/>
+            </column>
+            <column name="flow_name" type="NVARCHAR(128)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_identifier" type="NVARCHAR(512)">
+                <constraints nullable="true"/>
+            </column>
+            <column name="started_type" type="TINYINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="flow_parameters" type="blob">
+                <constraints nullable="false"/>
+            </column>
+            <column name="cordapp_name" type="NVARCHAR(64)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="platform_version" type="TINYINT">
+                <constraints nullable="false"/>
+            </column>
+            <column name="rpc_user" type="NVARCHAR(64)">
+                <constraints nullable="false"/>
+            </column>
+            <column name="invocation_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+            <column name="received_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="false"/>
+            </column>
+            <column name="start_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="true"/>
+            </column>
+            <column name="finish_time" type="java.sql.Types.TIMESTAMP">
+                <constraints nullable="true"/>
+            </column>
+        </createTable>
+    </changeSet>
+
+</databaseChangeLog>