018965f0-fdaa-4535-a39b-924d1b4fe28b

Committed 17 Jul 2023 10:20PM UTC coverage: 57.058% (-0.09%) from 57.146%

Build # 018965f0-fdaa-4535-a39b-924d1b4fe28b

Build Type

push

buildkite

Committed by

web-flow

Commit Message

[dynamic config] add Filters method to dynamic config Key (#5346)

What changed?

Add Filters method to Key interface
Add implementations on most keys by parsing the comments on keys (assuming they are correct)
Why?

This is needed to know what dynamic config is domain specific. And this could possible simplify the collection struct by consolidating all GetPropertyFilterBy** methods.

How did you test it?

Potential risks

no risk since the method will be read only in non-critical path

Release notes

Documentation Changes

Run Details

21 of 21 new or added lines in 1 file covered. (100.0%)

87154 of 152745 relevant lines covered (57.06%)

2500.48 hits per line

Source File
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63.86

/common/persistence/sql/sqlExecutionStore.go

// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package sql

import (
        "bytes"
        "context"
        "database/sql"
        "encoding/json"
        "fmt"
        "math"
        "runtime/debug"
        "time"

        "golang.org/x/sync/errgroup"

        "github.com/uber/cadence/common"
        "github.com/uber/cadence/common/collection"
        "github.com/uber/cadence/common/log"
        "github.com/uber/cadence/common/log/tag"
        p "github.com/uber/cadence/common/persistence"
        "github.com/uber/cadence/common/persistence/serialization"
        "github.com/uber/cadence/common/persistence/sql/sqlplugin"
        "github.com/uber/cadence/common/types"
)

const (
        emptyWorkflowID       string = ""
        emptyReplicationRunID string = "30000000-5000-f000-f000-000000000000"
)

type sqlExecutionStore struct {
        sqlStore
        shardID int
}

var _ p.ExecutionStore = (*sqlExecutionStore)(nil)

// NewSQLExecutionStore creates an instance of ExecutionStore
func NewSQLExecutionStore(
        db sqlplugin.DB,
        logger log.Logger,
        shardID int,
        parser serialization.Parser,
        dc *p.DynamicConfiguration,
) (p.ExecutionStore, error) {

        return &sqlExecutionStore{
                shardID: shardID,
                sqlStore: sqlStore{
                        db:     db,
                        logger: logger,
                        parser: parser,
                        dc:     dc,
                },
        }, nil
}

// txExecuteShardLocked executes f under transaction and with read lock on shard row
func (m *sqlExecutionStore) txExecuteShardLocked(
        ctx context.Context,
        dbShardID int,
        operation string,
        rangeID int64,
        fn func(tx sqlplugin.Tx) error,
) error {

        return m.txExecute(ctx, dbShardID, operation, func(tx sqlplugin.Tx) error {
                if err := readLockShard(ctx, tx, m.shardID, rangeID); err != nil {
                        return err
                }
                err := fn(tx)
                if err != nil {
                        return err
                }
                return nil
        })
}

func (m *sqlExecutionStore) GetShardID() int {
        return m.shardID
}

func (m *sqlExecutionStore) CreateWorkflowExecution(
        ctx context.Context,
        request *p.InternalCreateWorkflowExecutionRequest,
) (response *p.CreateWorkflowExecutionResponse, err error) {
        dbShardID := sqlplugin.GetDBShardIDFromHistoryShardID(m.shardID, m.db.GetTotalNumDBShards())

        err = m.txExecuteShardLocked(ctx, dbShardID, "CreateWorkflowExecution", request.RangeID, func(tx sqlplugin.Tx) error {
                response, err = m.createWorkflowExecutionTx(ctx, tx, request)
                return err
        })
        return
}

func (m *sqlExecutionStore) createWorkflowExecutionTx(
        ctx context.Context,
        tx sqlplugin.Tx,
        request *p.InternalCreateWorkflowExecutionRequest,
) (*p.CreateWorkflowExecutionResponse, error) {

        newWorkflow := request.NewWorkflowSnapshot
        executionInfo := newWorkflow.ExecutionInfo
        startVersion := newWorkflow.StartVersion
        lastWriteVersion := newWorkflow.LastWriteVersion
        shardID := m.shardID
        domainID := serialization.MustParseUUID(executionInfo.DomainID)
        workflowID := executionInfo.WorkflowID
        runID := serialization.MustParseUUID(executionInfo.RunID)

        if err := p.ValidateCreateWorkflowModeState(
                request.Mode,
                newWorkflow,
        ); err != nil {
                return nil, err
        }

        var err error
        var row *sqlplugin.CurrentExecutionsRow
        if row, err = lockCurrentExecutionIfExists(ctx, tx, m.shardID, domainID, workflowID); err != nil {
                return nil, err
        }

        // current workflow record check
        if row != nil {
                // current run ID, last write version, current workflow state check
                switch request.Mode {
                case p.CreateWorkflowModeBrandNew:
                        return nil, &p.WorkflowExecutionAlreadyStartedError{
                                Msg:              fmt.Sprintf("Workflow execution already running. WorkflowId: %v", row.WorkflowID),
                                StartRequestID:   row.CreateRequestID,
                                RunID:            row.RunID.String(),
                                State:            int(row.State),
                                CloseStatus:      int(row.CloseStatus),
                                LastWriteVersion: row.LastWriteVersion,
                        }

                case p.CreateWorkflowModeWorkflowIDReuse:
                        if request.PreviousLastWriteVersion != row.LastWriteVersion {
                                return nil, &p.CurrentWorkflowConditionFailedError{
                                        Msg: fmt.Sprintf("Workflow execution creation condition failed. WorkflowId: %v, "+
                                                "LastWriteVersion: %v, PreviousLastWriteVersion: %v",
                                                workflowID, row.LastWriteVersion, request.PreviousLastWriteVersion),
                                }
                        }
                        if row.State != p.WorkflowStateCompleted {
                                return nil, &p.CurrentWorkflowConditionFailedError{
                                        Msg: fmt.Sprintf("Workflow execution creation condition failed. WorkflowId: %v, "+
                                                "State: %v, Expected: %v",
                                                workflowID, row.State, p.WorkflowStateCompleted),
                                }
                        }
                        runIDStr := row.RunID.String()
                        if runIDStr != request.PreviousRunID {
                                return nil, &p.CurrentWorkflowConditionFailedError{
                                        Msg: fmt.Sprintf("Workflow execution creation condition failed. WorkflowId: %v, "+
                                                "RunID: %v, PreviousRunID: %v",
                                                workflowID, runIDStr, request.PreviousRunID),
                                }
                        }

                case p.CreateWorkflowModeZombie:
                        // zombie workflow creation with existence of current record, this is a noop
                        if err := assertRunIDMismatch(serialization.MustParseUUID(executionInfo.RunID), row.RunID); err != nil {
                                return nil, err
                        }

                case p.CreateWorkflowModeContinueAsNew:
                        // continueAsNew mode expects a current run exists
                        if err := assertRunIDMismatch(serialization.MustParseUUID(executionInfo.RunID), row.RunID); err != nil {
                                return nil, err
                        }

                default:
                        return nil, &types.InternalServiceError{
                                Message: fmt.Sprintf(
                                        "CreteWorkflowExecution: unknown mode: %v",
                                        request.Mode,
                                ),
                        }
                }
        }

        if err := createOrUpdateCurrentExecution(
                ctx,
                tx,
                request.Mode,
                m.shardID,
                domainID,
                workflowID,
                runID,
                executionInfo.State,
                executionInfo.CloseStatus,
                executionInfo.CreateRequestID,
                startVersion,
                lastWriteVersion); err != nil {
                return nil, err
        }

        if err := m.applyWorkflowSnapshotTxAsNew(ctx, tx, shardID, &request.NewWorkflowSnapshot, m.parser); err != nil {
                return nil, err
        }

        return &p.CreateWorkflowExecutionResponse{}, nil
}

func (m *sqlExecutionStore) getExecutions(
        ctx context.Context,
        request *p.InternalGetWorkflowExecutionRequest,
        domainID serialization.UUID,
        wfID string,
        runID serialization.UUID,
) ([]sqlplugin.ExecutionsRow, error) {
        executions, err := m.db.SelectFromExecutions(ctx, &sqlplugin.ExecutionsFilter{
                ShardID: m.shardID, DomainID: domainID, WorkflowID: wfID, RunID: runID})

        if err != nil {
                if err == sql.ErrNoRows {
                        return nil, &types.EntityNotExistsError{
                                Message: fmt.Sprintf(
                                        "Workflow execution not found.  WorkflowId: %v, RunId: %v",
                                        request.Execution.GetWorkflowID(),
                                        request.Execution.GetRunID(),
                                ),
                        }
                }
                return nil, convertCommonErrors(m.db, "GetWorkflowExecution", "", err)
        }

        if len(executions) == 0 {
                return nil, &types.EntityNotExistsError{
                        Message: fmt.Sprintf(
                                "Workflow execution not found.  WorkflowId: %v, RunId: %v",
                                request.Execution.GetWorkflowID(),
                                request.Execution.GetRunID(),
                        ),
                }
        }

        if len(executions) != 1 {
                return nil, &types.InternalServiceError{
                        Message: "GetWorkflowExecution return more than one results.",
                }
        }
        return executions, nil
}

func (m *sqlExecutionStore) GetWorkflowExecution(
        ctx context.Context,
        request *p.InternalGetWorkflowExecutionRequest,
) (resp *p.InternalGetWorkflowExecutionResponse, e error) {
        recoverPanic := func(recovered interface{}, err *error) {
                if recovered != nil {
                        *err = fmt.Errorf("DB operation panicked: %v %s", recovered, debug.Stack())
                }
        }

        domainID := serialization.MustParseUUID(request.DomainID)
        runID := serialization.MustParseUUID(request.Execution.RunID)
        wfID := request.Execution.WorkflowID

        var executions []sqlplugin.ExecutionsRow
        var activityInfos map[int64]*p.InternalActivityInfo
        var timerInfos map[string]*p.TimerInfo
        var childExecutionInfos map[int64]*p.InternalChildExecutionInfo
        var requestCancelInfos map[int64]*p.RequestCancelInfo
        var signalInfos map[int64]*p.SignalInfo
        var bufferedEvents []*p.DataBlob
        var signalsRequested map[string]struct{}

        g, ctx := errgroup.WithContext(ctx)

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                executions, e = m.getExecutions(ctx, request, domainID, wfID, runID)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                activityInfos, e = getActivityInfoMap(
                        ctx, m.db, m.shardID, domainID, wfID, runID, m.parser)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                timerInfos, e = getTimerInfoMap(
                        ctx, m.db, m.shardID, domainID, wfID, runID, m.parser)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                childExecutionInfos, e = getChildExecutionInfoMap(
                        ctx, m.db, m.shardID, domainID, wfID, runID, m.parser)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                requestCancelInfos, e = getRequestCancelInfoMap(
                        ctx, m.db, m.shardID, domainID, wfID, runID, m.parser)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                signalInfos, e = getSignalInfoMap(
                        ctx, m.db, m.shardID, domainID, wfID, runID, m.parser)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                bufferedEvents, e = getBufferedEvents(
                        ctx, m.db, m.shardID, domainID, wfID, runID)
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                signalsRequested, e = getSignalsRequested(
                        ctx, m.db, m.shardID, domainID, wfID, runID)
                return e
        })

        err := g.Wait()
        if err != nil {
                return nil, err
        }

        state, err := m.populateWorkflowMutableState(executions[0])
        if err != nil {
                return nil, &types.InternalServiceError{
                        Message: fmt.Sprintf("GetWorkflowExecution: failed. Error: %v", err),
                }
        }
        state.ActivityInfos = activityInfos
        state.TimerInfos = timerInfos
        state.ChildExecutionInfos = childExecutionInfos
        state.RequestCancelInfos = requestCancelInfos
        state.SignalInfos = signalInfos
        state.BufferedEvents = bufferedEvents
        state.SignalRequestedIDs = signalsRequested

        return &p.InternalGetWorkflowExecutionResponse{State: state}, nil
}

func (m *sqlExecutionStore) UpdateWorkflowExecution(
        ctx context.Context,
        request *p.InternalUpdateWorkflowExecutionRequest,
) error {
        dbShardID := sqlplugin.GetDBShardIDFromHistoryShardID(m.shardID, m.db.GetTotalNumDBShards())
        return m.txExecuteShardLocked(ctx, dbShardID, "UpdateWorkflowExecution", request.RangeID, func(tx sqlplugin.Tx) error {
                return m.updateWorkflowExecutionTx(ctx, tx, request)
        })
}

func (m *sqlExecutionStore) updateWorkflowExecutionTx(
        ctx context.Context,
        tx sqlplugin.Tx,
        request *p.InternalUpdateWorkflowExecutionRequest,
) error {

        updateWorkflow := request.UpdateWorkflowMutation
        newWorkflow := request.NewWorkflowSnapshot

        executionInfo := updateWorkflow.ExecutionInfo
        domainID := serialization.MustParseUUID(executionInfo.DomainID)
        workflowID := executionInfo.WorkflowID
        runID := serialization.MustParseUUID(executionInfo.RunID)
        shardID := m.shardID

        if err := p.ValidateUpdateWorkflowModeState(
                request.Mode,
                updateWorkflow,
                newWorkflow,
        ); err != nil {
                return err
        }

        switch request.Mode {
        case p.UpdateWorkflowModeIgnoreCurrent:
                // no-op
        case p.UpdateWorkflowModeBypassCurrent:
                if err := assertNotCurrentExecution(
                        ctx,
                        tx,
                        shardID,
                        domainID,
                        workflowID,
                        runID); err != nil {
                        return err
                }

        case p.UpdateWorkflowModeUpdateCurrent:
                if newWorkflow != nil {
                        newExecutionInfo := newWorkflow.ExecutionInfo
                        startVersion := newWorkflow.StartVersion
                        lastWriteVersion := newWorkflow.LastWriteVersion
                        newDomainID := serialization.MustParseUUID(newExecutionInfo.DomainID)
                        newRunID := serialization.MustParseUUID(newExecutionInfo.RunID)

                        if !bytes.Equal(domainID, newDomainID) {
                                return &types.InternalServiceError{
                                        Message: "UpdateWorkflowExecution: cannot continue as new to another domain",
                                }
                        }

                        if err := assertRunIDAndUpdateCurrentExecution(
                                ctx,
                                tx,
                                shardID,
                                domainID,
                                workflowID,
                                newRunID,
                                runID,
                                newWorkflow.ExecutionInfo.CreateRequestID,
                                newWorkflow.ExecutionInfo.State,
                                newWorkflow.ExecutionInfo.CloseStatus,
                                startVersion,
                                lastWriteVersion); err != nil {
                                return err
                        }
                } else {
                        startVersion := updateWorkflow.StartVersion
                        lastWriteVersion := updateWorkflow.LastWriteVersion
                        // this is only to update the current record
                        if err := assertRunIDAndUpdateCurrentExecution(
                                ctx,
                                tx,
                                shardID,
                                domainID,
                                workflowID,
                                runID,
                                runID,
                                executionInfo.CreateRequestID,
                                executionInfo.State,
                                executionInfo.CloseStatus,
                                startVersion,
                                lastWriteVersion); err != nil {
                                return err
                        }
                }

        default:
                return &types.InternalServiceError{
                        Message: fmt.Sprintf("UpdateWorkflowExecution: unknown mode: %v", request.Mode),
                }
        }

        if m.useAsyncTransaction() { // async transaction is enabled
                // TODO: it's possible to merge some operations in the following 2 functions in a batch, should refactor the code later
                if err := applyWorkflowMutationAsyncTx(ctx, tx, shardID, &updateWorkflow, m.parser); err != nil {
                        return err
                }
                if newWorkflow != nil {
                        if err := m.applyWorkflowSnapshotAsyncTxAsNew(ctx, tx, shardID, newWorkflow, m.parser); err != nil {
                                return err
                        }
                }
                return nil
        }

        if err := applyWorkflowMutationTx(ctx, tx, shardID, &updateWorkflow, m.parser); err != nil {
                return err
        }
        if newWorkflow != nil {
                if err := m.applyWorkflowSnapshotTxAsNew(ctx, tx, shardID, newWorkflow, m.parser); err != nil {
                        return err
                }
        }
        return nil
}

func (m *sqlExecutionStore) ConflictResolveWorkflowExecution(
        ctx context.Context,
        request *p.InternalConflictResolveWorkflowExecutionRequest,
) error {
        dbShardID := sqlplugin.GetDBShardIDFromHistoryShardID(m.shardID, m.db.GetTotalNumDBShards())
        return m.txExecuteShardLocked(ctx, dbShardID, "ConflictResolveWorkflowExecution", request.RangeID, func(tx sqlplugin.Tx) error {
                return m.conflictResolveWorkflowExecutionTx(ctx, tx, request)
        })
}

func (m *sqlExecutionStore) conflictResolveWorkflowExecutionTx(
        ctx context.Context,
        tx sqlplugin.Tx,
        request *p.InternalConflictResolveWorkflowExecutionRequest,
) error {

        currentWorkflow := request.CurrentWorkflowMutation
        resetWorkflow := request.ResetWorkflowSnapshot
        newWorkflow := request.NewWorkflowSnapshot

        shardID := m.shardID

        domainID := serialization.MustParseUUID(resetWorkflow.ExecutionInfo.DomainID)
        workflowID := resetWorkflow.ExecutionInfo.WorkflowID

        if err := p.ValidateConflictResolveWorkflowModeState(
                request.Mode,
                resetWorkflow,
                newWorkflow,
                currentWorkflow,
        ); err != nil {
                return err
        }

        switch request.Mode {
        case p.ConflictResolveWorkflowModeBypassCurrent:
                if err := assertNotCurrentExecution(
                        ctx,
                        tx,
                        shardID,
                        domainID,
                        workflowID,
                        serialization.MustParseUUID(resetWorkflow.ExecutionInfo.RunID)); err != nil {
                        return err
                }

        case p.ConflictResolveWorkflowModeUpdateCurrent:
                executionInfo := resetWorkflow.ExecutionInfo
                startVersion := resetWorkflow.StartVersion
                lastWriteVersion := resetWorkflow.LastWriteVersion
                if newWorkflow != nil {
                        executionInfo = newWorkflow.ExecutionInfo
                        startVersion = newWorkflow.StartVersion
                        lastWriteVersion = newWorkflow.LastWriteVersion
                }
                runID := serialization.MustParseUUID(executionInfo.RunID)
                createRequestID := executionInfo.CreateRequestID
                state := executionInfo.State
                closeStatus := executionInfo.CloseStatus

                if currentWorkflow != nil {
                        prevRunID := serialization.MustParseUUID(currentWorkflow.ExecutionInfo.RunID)

                        if err := assertRunIDAndUpdateCurrentExecution(
                                ctx,
                                tx,
                                m.shardID,
                                domainID,
                                workflowID,
                                runID,
                                prevRunID,
                                createRequestID,
                                state,
                                closeStatus,
                                startVersion,
                                lastWriteVersion); err != nil {
                                return err
                        }
                } else {
                        // reset workflow is current
                        prevRunID := serialization.MustParseUUID(resetWorkflow.ExecutionInfo.RunID)

                        if err := assertRunIDAndUpdateCurrentExecution(
                                ctx,
                                tx,
                                m.shardID,
                                domainID,
                                workflowID,
                                runID,
                                prevRunID,
                                createRequestID,
                                state,
                                closeStatus,
                                startVersion,
                                lastWriteVersion); err != nil {
                                return err
                        }
                }

        default:
                return &types.InternalServiceError{
                        Message: fmt.Sprintf("ConflictResolveWorkflowExecution: unknown mode: %v", request.Mode),
                }
        }

        if err := applyWorkflowSnapshotTxAsReset(ctx, tx, shardID, &resetWorkflow, m.parser); err != nil {
                return err
        }
        if currentWorkflow != nil {
                if err := applyWorkflowMutationTx(ctx, tx, shardID, currentWorkflow, m.parser); err != nil {
                        return err
                }
        }
        if newWorkflow != nil {
                if err := m.applyWorkflowSnapshotTxAsNew(ctx, tx, shardID, newWorkflow, m.parser); err != nil {
                        return err
                }
        }
        return nil
}

func (m *sqlExecutionStore) DeleteWorkflowExecution(
        ctx context.Context,
        request *p.DeleteWorkflowExecutionRequest,
) error {
        recoverPanic := func(recovered interface{}, err *error) {
                if recovered != nil {
                        *err = fmt.Errorf("DB operation panicked: %v %s", recovered, debug.Stack())
                }
        }
        domainID := serialization.MustParseUUID(request.DomainID)
        runID := serialization.MustParseUUID(request.RunID)
        wfID := request.WorkflowID
        g, ctx := errgroup.WithContext(ctx)

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromExecutions(ctx, &sqlplugin.ExecutionsFilter{
                        ShardID:    m.shardID,
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromActivityInfoMaps(ctx, &sqlplugin.ActivityInfoMapsFilter{
                        ShardID:    int64(m.shardID),
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromTimerInfoMaps(ctx, &sqlplugin.TimerInfoMapsFilter{
                        ShardID:    int64(m.shardID),
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromChildExecutionInfoMaps(ctx, &sqlplugin.ChildExecutionInfoMapsFilter{
                        ShardID:    int64(m.shardID),
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromRequestCancelInfoMaps(ctx, &sqlplugin.RequestCancelInfoMapsFilter{
                        ShardID:    int64(m.shardID),
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromSignalInfoMaps(ctx, &sqlplugin.SignalInfoMapsFilter{
                        ShardID:    int64(m.shardID),
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromBufferedEvents(ctx, &sqlplugin.BufferedEventsFilter{
                        ShardID:    m.shardID,
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })

        g.Go(func() (e error) {
                defer func() { recoverPanic(recover(), &e) }()
                _, e = m.db.DeleteFromSignalsRequestedSets(ctx, &sqlplugin.SignalsRequestedSetsFilter{
                        ShardID:    int64(m.shardID),
                        DomainID:   domainID,
                        WorkflowID: wfID,
                        RunID:      runID,
                })
                return e
        })
        return g.Wait()
}

// its possible for a new run of the same workflow to have started after the run we are deleting
// here was finished. In that case, current_executions table will have the same workflowID but different
// runID. The following code will delete the row from current_executions if and only if the runID is
// same as the one we are trying to delete here
func (m *sqlExecutionStore) DeleteCurrentWorkflowExecution(
        ctx context.Context,
        request *p.DeleteCurrentWorkflowExecutionRequest,
) error {

        domainID := serialization.MustParseUUID(request.DomainID)
        runID := serialization.MustParseUUID(request.RunID)
        _, err := m.db.DeleteFromCurrentExecutions(ctx, &sqlplugin.CurrentExecutionsFilter{
                ShardID:    int64(m.shardID),
                DomainID:   domainID,
                WorkflowID: request.WorkflowID,
                RunID:      runID,
        })
        if err != nil {
                return convertCommonErrors(m.db, "DeleteCurrentWorkflowExecution", "", err)
        }
        return nil
}

func (m *sqlExecutionStore) GetCurrentExecution(
        ctx context.Context,
        request *p.GetCurrentExecutionRequest,
) (*p.GetCurrentExecutionResponse, error) {

        row, err := m.db.SelectFromCurrentExecutions(ctx, &sqlplugin.CurrentExecutionsFilter{
                ShardID:    int64(m.shardID),
                DomainID:   serialization.MustParseUUID(request.DomainID),
                WorkflowID: request.WorkflowID,
        })
        if err != nil {
                return nil, convertCommonErrors(m.db, "GetCurrentExecution", "", err)
        }
        return &p.GetCurrentExecutionResponse{
                StartRequestID:   row.CreateRequestID,
                RunID:            row.RunID.String(),
                State:            int(row.State),
                CloseStatus:      int(row.CloseStatus),
                LastWriteVersion: row.LastWriteVersion,
        }, nil
}

func (m *sqlExecutionStore) ListCurrentExecutions(
        _ context.Context,
        _ *p.ListCurrentExecutionsRequest,
) (*p.ListCurrentExecutionsResponse, error) {
        return nil, &types.InternalServiceError{Message: "Not yet implemented"}
}

func (m *sqlExecutionStore) IsWorkflowExecutionExists(
        _ context.Context,
        _ *p.IsWorkflowExecutionExistsRequest,
) (*p.IsWorkflowExecutionExistsResponse, error) {
        return nil, &types.InternalServiceError{Message: "Not yet implemented"}
}

func (m *sqlExecutionStore) ListConcreteExecutions(
        ctx context.Context,
        request *p.ListConcreteExecutionsRequest,
) (*p.InternalListConcreteExecutionsResponse, error) {

        filter := &sqlplugin.ExecutionsFilter{}
        if len(request.PageToken) > 0 {
                err := gobDeserialize(request.PageToken, &filter)
                if err != nil {
                        return nil, &types.InternalServiceError{
                                Message: fmt.Sprintf("ListConcreteExecutions failed. Error: %v", err),
                        }
                }
        } else {
                filter = &sqlplugin.ExecutionsFilter{
                        ShardID:    m.shardID,
                        WorkflowID: "",
                }
        }
        filter.Size = request.PageSize

        executions, err := m.db.SelectFromExecutions(ctx, filter)
        if err != nil {
                if err == sql.ErrNoRows {
                        return &p.InternalListConcreteExecutionsResponse{}, nil
                }
                return nil, convertCommonErrors(m.db, "ListConcreteExecutions", "", err)
        }

        if len(executions) == 0 {
                return &p.InternalListConcreteExecutionsResponse{}, nil
        }
        lastExecution := executions[len(executions)-1]
        nextFilter := &sqlplugin.ExecutionsFilter{
                ShardID:    m.shardID,
                WorkflowID: lastExecution.WorkflowID,
        }
        token, err := gobSerialize(nextFilter)
        if err != nil {
                return nil, &types.InternalServiceError{
                        Message: fmt.Sprintf("ListConcreteExecutions failed. Error: %v", err),
                }
        }
        concreteExecutions, err := m.populateInternalListConcreteExecutions(executions)
        if err != nil {
                return nil, &types.InternalServiceError{
                        Message: fmt.Sprintf("ListConcreteExecutions failed. Error: %v", err),
                }
        }

        return &p.InternalListConcreteExecutionsResponse{
                Executions:    concreteExecutions,
                NextPageToken: token,
        }, nil
}

func (m *sqlExecutionStore) GetTransferTasks(
        ctx context.Context,
        request *p.GetTransferTasksRequest,
) (*p.GetTransferTasksResponse, error) {
        minReadLevel := request.ReadLevel
        if len(request.NextPageToken) > 0 {
                readLevel, err := deserializePageToken(request.NextPageToken)
                if err != nil {
                        return nil, convertCommonErrors(m.db, "GetTransferTasks", "failed to deserialize page token", err)
                }
                minReadLevel = readLevel
        }
        rows, err := m.db.SelectFromTransferTasks(ctx, &sqlplugin.TransferTasksFilter{
                ShardID:   m.shardID,
                MinTaskID: minReadLevel,
                MaxTaskID: request.MaxReadLevel,
                PageSize:  request.BatchSize,
        })
        if err != nil {
                if err != sql.ErrNoRows {
                        return nil, convertCommonErrors(m.db, "GetTransferTasks", "", err)
                }
        }
        resp := &p.GetTransferTasksResponse{Tasks: make([]*p.TransferTaskInfo, len(rows))}
        for i, row := range rows {
                info, err := m.parser.TransferTaskInfoFromBlob(row.Data, row.DataEncoding)
                if err != nil {
                        return nil, err
                }
                resp.Tasks[i] = &p.TransferTaskInfo{
                        TaskID:                  row.TaskID,
                        DomainID:                info.DomainID.String(),
                        WorkflowID:              info.GetWorkflowID(),
                        RunID:                   info.RunID.String(),
                        VisibilityTimestamp:     info.GetVisibilityTimestamp(),
                        TargetDomainID:          info.TargetDomainID.String(),
                        TargetDomainIDs:         info.GetTargetDomainIDs(),
                        TargetWorkflowID:        info.GetTargetWorkflowID(),
                        TargetRunID:             info.TargetRunID.String(),
                        TargetChildWorkflowOnly: info.GetTargetChildWorkflowOnly(),
                        TaskList:                info.GetTaskList(),
                        TaskType:                int(info.GetTaskType()),
                        ScheduleID:              info.GetScheduleID(),
                        Version:                 info.GetVersion(),
                }
        }
        if len(rows) > 0 {
                lastTaskID := rows[len(rows)-1].TaskID
                if lastTaskID < request.MaxReadLevel {
                        resp.NextPageToken = serializePageToken(lastTaskID)
                }
        }
        return resp, nil
}

func (m *sqlExecutionStore) CompleteTransferTask(
        ctx context.Context,
        request *p.CompleteTransferTaskRequest,
) error {

        if _, err := m.db.DeleteFromTransferTasks(ctx, &sqlplugin.TransferTasksFilter{
                ShardID: m.shardID,
                TaskID:  request.TaskID,
        }); err != nil {
                return convertCommonErrors(m.db, "CompleteTransferTask", "", err)
        }
        return nil
}

func (m *sqlExecutionStore) RangeCompleteTransferTask(
        ctx context.Context,
        request *p.RangeCompleteTransferTaskRequest,
) (*p.RangeCompleteTransferTaskResponse, error) {
        result, err := m.db.RangeDeleteFromTransferTasks(ctx, &sqlplugin.TransferTasksFilter{
                ShardID:   m.shardID,
                MinTaskID: request.ExclusiveBeginTaskID,
                MaxTaskID: request.InclusiveEndTaskID,
                PageSize:  request.PageSize,
        })
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteTransferTask", "", err)
        }
        rowsDeleted, err := result.RowsAffected()
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteTransferTask", "", err)
        }
        return &p.RangeCompleteTransferTaskResponse{TasksCompleted: int(rowsDeleted)}, nil
}

func (m *sqlExecutionStore) GetCrossClusterTasks(
        ctx context.Context,
        request *p.GetCrossClusterTasksRequest,
) (*p.GetCrossClusterTasksResponse, error) {
        minReadLevel := request.ReadLevel
        if len(request.NextPageToken) > 0 {
                readLevel, err := deserializePageToken(request.NextPageToken)
                if err != nil {
                        return nil, convertCommonErrors(m.db, "GetCrossClusterTasks", "failed to deserialize page token", err)
                }
                minReadLevel = readLevel
        }
        rows, err := m.db.SelectFromCrossClusterTasks(ctx, &sqlplugin.CrossClusterTasksFilter{
                TargetCluster: request.TargetCluster,
                ShardID:       m.shardID,
                MinTaskID:     minReadLevel,
                MaxTaskID:     request.MaxReadLevel,
                PageSize:      request.BatchSize,
        })
        if err != nil {
                if err != sql.ErrNoRows {
                        return nil, convertCommonErrors(m.db, "GetCrossClusterTasks", "", err)
                }
        }
        resp := &p.GetCrossClusterTasksResponse{Tasks: make([]*p.CrossClusterTaskInfo, len(rows))}
        for i, row := range rows {
                info, err := m.parser.CrossClusterTaskInfoFromBlob(row.Data, row.DataEncoding)
                if err != nil {
                        return nil, err
                }
                resp.Tasks[i] = &p.CrossClusterTaskInfo{
                        TaskID:                  row.TaskID,
                        DomainID:                info.DomainID.String(),
                        WorkflowID:              info.GetWorkflowID(),
                        RunID:                   info.RunID.String(),
                        VisibilityTimestamp:     info.GetVisibilityTimestamp(),
                        TargetDomainID:          info.TargetDomainID.String(),
                        TargetDomainIDs:         info.GetTargetDomainIDs(),
                        TargetWorkflowID:        info.GetTargetWorkflowID(),
                        TargetRunID:             info.TargetRunID.String(),
                        TargetChildWorkflowOnly: info.GetTargetChildWorkflowOnly(),
                        TaskList:                info.GetTaskList(),
                        TaskType:                int(info.GetTaskType()),
                        ScheduleID:              info.GetScheduleID(),
                        Version:                 info.GetVersion(),
                }
        }
        if len(rows) > 0 {
                lastTaskID := rows[len(rows)-1].TaskID
                if lastTaskID < request.MaxReadLevel {
                        resp.NextPageToken = serializePageToken(lastTaskID)
                }
        }
        return resp, nil

}

func (m *sqlExecutionStore) CompleteCrossClusterTask(
        ctx context.Context,
        request *p.CompleteCrossClusterTaskRequest,
) error {
        if _, err := m.db.DeleteFromCrossClusterTasks(ctx, &sqlplugin.CrossClusterTasksFilter{
                TargetCluster: request.TargetCluster,
                ShardID:       m.shardID,
                TaskID:        request.TaskID,
        }); err != nil {
                return convertCommonErrors(m.db, "CompleteCrossClusterTask", "", err)
        }
        return nil
}

func (m *sqlExecutionStore) RangeCompleteCrossClusterTask(
        ctx context.Context,
        request *p.RangeCompleteCrossClusterTaskRequest,
) (*p.RangeCompleteCrossClusterTaskResponse, error) {
        result, err := m.db.RangeDeleteFromCrossClusterTasks(ctx, &sqlplugin.CrossClusterTasksFilter{
                TargetCluster: request.TargetCluster,
                ShardID:       m.shardID,
                MinTaskID:     request.ExclusiveBeginTaskID,
                MaxTaskID:     request.InclusiveEndTaskID,
                PageSize:      request.PageSize,
        })
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteCrossClusterTask", "", err)
        }
        rowsDeleted, err := result.RowsAffected()
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteCrossClusterTask", "", err)
        }
        return &p.RangeCompleteCrossClusterTaskResponse{TasksCompleted: int(rowsDeleted)}, nil
}

func (m *sqlExecutionStore) GetReplicationTasks(
        ctx context.Context,
        request *p.GetReplicationTasksRequest,
) (*p.InternalGetReplicationTasksResponse, error) {

        readLevel, maxReadLevelInclusive, err := getReadLevels(request)
        if err != nil {
                return nil, err
        }

        rows, err := m.db.SelectFromReplicationTasks(
                ctx,
                &sqlplugin.ReplicationTasksFilter{
                        ShardID:   m.shardID,
                        MinTaskID: readLevel,
                        MaxTaskID: maxReadLevelInclusive,
                        PageSize:  request.BatchSize,
                })

        switch err {
        case nil:
                return m.populateGetReplicationTasksResponse(rows, request.MaxReadLevel)
        case sql.ErrNoRows:
                return &p.InternalGetReplicationTasksResponse{}, nil
        default:
                return nil, convertCommonErrors(m.db, "GetReplicationTasks", "", err)
        }
}

func getReadLevels(request *p.GetReplicationTasksRequest) (readLevel int64, maxReadLevelInclusive int64, err error) {
        readLevel = request.ReadLevel
        if len(request.NextPageToken) > 0 {
                readLevel, err = deserializePageToken(request.NextPageToken)
                if err != nil {
                        return 0, 0, err
                }
        }

        maxReadLevelInclusive = collection.MaxInt64(readLevel+int64(request.BatchSize), request.MaxReadLevel)
        return readLevel, maxReadLevelInclusive, nil
}

func (m *sqlExecutionStore) populateGetReplicationTasksResponse(
        rows []sqlplugin.ReplicationTasksRow,
        requestMaxReadLevel int64,
) (*p.InternalGetReplicationTasksResponse, error) {
        if len(rows) == 0 {
                return &p.InternalGetReplicationTasksResponse{}, nil
        }

        var tasks = make([]*p.InternalReplicationTaskInfo, len(rows))
        for i, row := range rows {
                info, err := m.parser.ReplicationTaskInfoFromBlob(row.Data, row.DataEncoding)
                if err != nil {
                        return nil, err
                }

                tasks[i] = &p.InternalReplicationTaskInfo{
                        TaskID:            row.TaskID,
                        DomainID:          info.DomainID.String(),
                        WorkflowID:        info.GetWorkflowID(),
                        RunID:             info.RunID.String(),
                        TaskType:          int(info.GetTaskType()),
                        FirstEventID:      info.GetFirstEventID(),
                        NextEventID:       info.GetNextEventID(),
                        Version:           info.GetVersion(),
                        ScheduledID:       info.GetScheduledID(),
                        BranchToken:       info.GetBranchToken(),
                        NewRunBranchToken: info.GetNewRunBranchToken(),
                        CreationTime:      info.GetCreationTimestamp(),
                }
        }
        var nextPageToken []byte
        lastTaskID := rows[len(rows)-1].TaskID
        if lastTaskID < requestMaxReadLevel {
                nextPageToken = serializePageToken(lastTaskID)
        }
        return &p.InternalGetReplicationTasksResponse{
                Tasks:         tasks,
                NextPageToken: nextPageToken,
        }, nil
}

func (m *sqlExecutionStore) CompleteReplicationTask(
        ctx context.Context,
        request *p.CompleteReplicationTaskRequest,
) error {

        if _, err := m.db.DeleteFromReplicationTasks(ctx, &sqlplugin.ReplicationTasksFilter{
                ShardID: m.shardID,
                TaskID:  request.TaskID,
        }); err != nil {
                return convertCommonErrors(m.db, "CompleteReplicationTask", "", err)
        }
        return nil
}

func (m *sqlExecutionStore) RangeCompleteReplicationTask(
        ctx context.Context,
        request *p.RangeCompleteReplicationTaskRequest,
) (*p.RangeCompleteReplicationTaskResponse, error) {
        result, err := m.db.RangeDeleteFromReplicationTasks(ctx, &sqlplugin.ReplicationTasksFilter{
                ShardID:            m.shardID,
                InclusiveEndTaskID: request.InclusiveEndTaskID,
                PageSize:           request.PageSize,
        })
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteReplicationTask", "", err)
        }
        rowsDeleted, err := result.RowsAffected()
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteReplicationTask", "", err)
        }
        return &p.RangeCompleteReplicationTaskResponse{TasksCompleted: int(rowsDeleted)}, nil
}

func (m *sqlExecutionStore) GetReplicationTasksFromDLQ(
        ctx context.Context,
        request *p.GetReplicationTasksFromDLQRequest,
) (*p.InternalGetReplicationTasksFromDLQResponse, error) {

        readLevel, maxReadLevelInclusive, err := getReadLevels(&request.GetReplicationTasksRequest)
        if err != nil {
                return nil, err
        }

        filter := sqlplugin.ReplicationTasksFilter{
                ShardID:   m.shardID,
                MinTaskID: readLevel,
                MaxTaskID: maxReadLevelInclusive,
                PageSize:  request.BatchSize,
        }
        rows, err := m.db.SelectFromReplicationTasksDLQ(ctx, &sqlplugin.ReplicationTasksDLQFilter{
                ReplicationTasksFilter: filter,
                SourceClusterName:      request.SourceClusterName,
        })

        switch err {
        case nil:
                return m.populateGetReplicationTasksResponse(rows, request.MaxReadLevel)
        case sql.ErrNoRows:
                return &p.InternalGetReplicationTasksResponse{}, nil
        default:
                return nil, convertCommonErrors(m.db, "GetReplicationTasksFromDLQ", "", err)
        }
}

func (m *sqlExecutionStore) GetReplicationDLQSize(
        ctx context.Context,
        request *p.GetReplicationDLQSizeRequest,
) (*p.GetReplicationDLQSizeResponse, error) {

        size, err := m.db.SelectFromReplicationDLQ(ctx, &sqlplugin.ReplicationTaskDLQFilter{
                SourceClusterName: request.SourceClusterName,
                ShardID:           m.shardID,
        })

        switch err {
        case nil:
                return &p.GetReplicationDLQSizeResponse{
                        Size: size,
                }, nil
        case sql.ErrNoRows:
                return &p.GetReplicationDLQSizeResponse{
                        Size: 0,
                }, nil
        default:
                return nil, convertCommonErrors(m.db, "GetReplicationDLQSize", "", err)
        }
}

func (m *sqlExecutionStore) DeleteReplicationTaskFromDLQ(
        ctx context.Context,
        request *p.DeleteReplicationTaskFromDLQRequest,
) error {

        filter := sqlplugin.ReplicationTasksFilter{
                ShardID: m.shardID,
                TaskID:  request.TaskID,
        }

        if _, err := m.db.DeleteMessageFromReplicationTasksDLQ(ctx, &sqlplugin.ReplicationTasksDLQFilter{
                ReplicationTasksFilter: filter,
                SourceClusterName:      request.SourceClusterName,
        }); err != nil {
                return convertCommonErrors(m.db, "DeleteReplicationTaskFromDLQ", "", err)
        }
        return nil
}

func (m *sqlExecutionStore) RangeDeleteReplicationTaskFromDLQ(
        ctx context.Context,
        request *p.RangeDeleteReplicationTaskFromDLQRequest,
) (*p.RangeDeleteReplicationTaskFromDLQResponse, error) {
        filter := sqlplugin.ReplicationTasksFilter{
                ShardID:            m.shardID,
                TaskID:             request.ExclusiveBeginTaskID,
                InclusiveEndTaskID: request.InclusiveEndTaskID,
                PageSize:           request.PageSize,
        }
        result, err := m.db.RangeDeleteMessageFromReplicationTasksDLQ(ctx, &sqlplugin.ReplicationTasksDLQFilter{
                ReplicationTasksFilter: filter,
                SourceClusterName:      request.SourceClusterName,
        })
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeDeleteReplicationTaskFromDLQ", "", err)
        }
        rowsDeleted, err := result.RowsAffected()
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeDeleteReplicationTaskFromDLQ", "", err)
        }
        return &p.RangeDeleteReplicationTaskFromDLQResponse{TasksCompleted: int(rowsDeleted)}, nil
}

func (m *sqlExecutionStore) CreateFailoverMarkerTasks(
        ctx context.Context,
        request *p.CreateFailoverMarkersRequest,
) error {
        dbShardID := sqlplugin.GetDBShardIDFromHistoryShardID(m.shardID, m.db.GetTotalNumDBShards())
        return m.txExecuteShardLocked(ctx, dbShardID, "CreateFailoverMarkerTasks", request.RangeID, func(tx sqlplugin.Tx) error {
                for _, task := range request.Markers {
                        t := []p.Task{task}
                        if err := createReplicationTasks(
                                ctx,
                                tx,
                                t,
                                m.shardID,
                                serialization.MustParseUUID(task.DomainID),
                                emptyWorkflowID,
                                serialization.MustParseUUID(emptyReplicationRunID),
                                m.parser,
                        ); err != nil {
                                rollBackErr := tx.Rollback()
                                if rollBackErr != nil {
                                        m.logger.Error("transaction rollback error", tag.Error(rollBackErr))
                                }
                                return err
                        }
                }
                return nil
        })
}

type timerTaskPageToken struct {
        TaskID    int64
        Timestamp time.Time
}

func (t *timerTaskPageToken) serialize() ([]byte, error) {
        return json.Marshal(t)
}

func (t *timerTaskPageToken) deserialize(payload []byte) error {
        return json.Unmarshal(payload, t)
}

func (m *sqlExecutionStore) GetTimerIndexTasks(
        ctx context.Context,
        request *p.GetTimerIndexTasksRequest,
) (*p.GetTimerIndexTasksResponse, error) {

        pageToken := &timerTaskPageToken{TaskID: math.MinInt64, Timestamp: request.MinTimestamp}
        if len(request.NextPageToken) > 0 {
                if err := pageToken.deserialize(request.NextPageToken); err != nil {
                        return nil, &types.InternalServiceError{
                                Message: fmt.Sprintf("error deserializing timerTaskPageToken: %v", err),
                        }
                }
        }

        rows, err := m.db.SelectFromTimerTasks(ctx, &sqlplugin.TimerTasksFilter{
                ShardID:                m.shardID,
                MinVisibilityTimestamp: pageToken.Timestamp,
                TaskID:                 pageToken.TaskID,
                MaxVisibilityTimestamp: request.MaxTimestamp,
                PageSize:               request.BatchSize + 1,
        })

        if err != nil && err != sql.ErrNoRows {
                return nil, convertCommonErrors(m.db, "GetTimerIndexTasks", "", err)
        }

        resp := &p.GetTimerIndexTasksResponse{Timers: make([]*p.TimerTaskInfo, len(rows))}
        for i, row := range rows {
                info, err := m.parser.TimerTaskInfoFromBlob(row.Data, row.DataEncoding)
                if err != nil {
                        return nil, err
                }
                resp.Timers[i] = &p.TimerTaskInfo{
                        VisibilityTimestamp: row.VisibilityTimestamp,
                        TaskID:              row.TaskID,
                        DomainID:            info.DomainID.String(),
                        WorkflowID:          info.GetWorkflowID(),
                        RunID:               info.RunID.String(),
                        TaskType:            int(info.GetTaskType()),
                        TimeoutType:         int(info.GetTimeoutType()),
                        EventID:             info.GetEventID(),
                        ScheduleAttempt:     info.GetScheduleAttempt(),
                        Version:             info.GetVersion(),
                }
        }

        if len(resp.Timers) > request.BatchSize {
                pageToken = &timerTaskPageToken{
                        TaskID:    resp.Timers[request.BatchSize].TaskID,
                        Timestamp: resp.Timers[request.BatchSize].VisibilityTimestamp,
                }
                resp.Timers = resp.Timers[:request.BatchSize]
                nextToken, err := pageToken.serialize()
                if err != nil {
                        return nil, &types.InternalServiceError{
                                Message: fmt.Sprintf("GetTimerTasks: error serializing page token: %v", err),
                        }
                }
                resp.NextPageToken = nextToken
        }

        return resp, nil
}

func (m *sqlExecutionStore) CompleteTimerTask(
        ctx context.Context,
        request *p.CompleteTimerTaskRequest,
) error {

        if _, err := m.db.DeleteFromTimerTasks(ctx, &sqlplugin.TimerTasksFilter{
                ShardID:             m.shardID,
                VisibilityTimestamp: request.VisibilityTimestamp,
                TaskID:              request.TaskID,
        }); err != nil {
                return convertCommonErrors(m.db, "CompleteTimerTask", "", err)
        }
        return nil
}

func (m *sqlExecutionStore) RangeCompleteTimerTask(
        ctx context.Context,
        request *p.RangeCompleteTimerTaskRequest,
) (*p.RangeCompleteTimerTaskResponse, error) {
        result, err := m.db.RangeDeleteFromTimerTasks(ctx, &sqlplugin.TimerTasksFilter{
                ShardID:                m.shardID,
                MinVisibilityTimestamp: request.InclusiveBeginTimestamp,
                MaxVisibilityTimestamp: request.ExclusiveEndTimestamp,
                PageSize:               request.PageSize,
        })
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteTimerTask", "", err)
        }
        rowsDeleted, err := result.RowsAffected()
        if err != nil {
                return nil, convertCommonErrors(m.db, "RangeCompleteTimerTask", "", err)
        }
        return &p.RangeCompleteTimerTaskResponse{TasksCompleted: int(rowsDeleted)}, nil
}

func (m *sqlExecutionStore) PutReplicationTaskToDLQ(
        ctx context.Context,
        request *p.InternalPutReplicationTaskToDLQRequest,
) error {
        replicationTask := request.TaskInfo
        blob, err := m.parser.ReplicationTaskInfoToBlob(&serialization.ReplicationTaskInfo{
                DomainID:                serialization.MustParseUUID(replicationTask.DomainID),
                WorkflowID:              replicationTask.WorkflowID,
                RunID:                   serialization.MustParseUUID(replicationTask.RunID),
                TaskType:                int16(replicationTask.TaskType),
                FirstEventID:            replicationTask.FirstEventID,
                NextEventID:             replicationTask.NextEventID,
                Version:                 replicationTask.Version,
                ScheduledID:             replicationTask.ScheduledID,
                EventStoreVersion:       p.EventStoreVersion,
                NewRunEventStoreVersion: p.EventStoreVersion,
                BranchToken:             replicationTask.BranchToken,
                NewRunBranchToken:       replicationTask.NewRunBranchToken,
                CreationTimestamp:       replicationTask.CreationTime,
        })
        if err != nil {
                return err
        }

        row := &sqlplugin.ReplicationTaskDLQRow{
                SourceClusterName: request.SourceClusterName,
                ShardID:           m.shardID,
                TaskID:            replicationTask.TaskID,
                Data:              blob.Data,
                DataEncoding:      string(blob.Encoding),
        }

        _, err = m.db.InsertIntoReplicationTasksDLQ(ctx, row)

        // Tasks are immutable. So it's fine if we already persisted it before.
        // This can happen when tasks are retried (ack and cleanup can have lag on source side).
        if err != nil && !m.db.IsDupEntryError(err) {
                return convertCommonErrors(m.db, "PutReplicationTaskToDLQ", "", err)
        }

        return nil
}

func (m *sqlExecutionStore) populateWorkflowMutableState(
        execution sqlplugin.ExecutionsRow,
) (*p.InternalWorkflowMutableState, error) {

        info, err := m.parser.WorkflowExecutionInfoFromBlob(execution.Data, execution.DataEncoding)
        if err != nil {
                return nil, err
        }

        state := &p.InternalWorkflowMutableState{}
        state.ExecutionInfo = serialization.ToInternalWorkflowExecutionInfo(info)
        state.ExecutionInfo.DomainID = execution.DomainID.String()
        state.ExecutionInfo.WorkflowID = execution.WorkflowID
        state.ExecutionInfo.RunID = execution.RunID.String()
        state.ExecutionInfo.NextEventID = execution.NextEventID
        // TODO: remove this after all 2DC workflows complete
        if info.LastWriteEventID != nil {
                state.ReplicationState = &p.ReplicationState{}
                state.ReplicationState.StartVersion = info.GetStartVersion()
                state.ReplicationState.LastWriteVersion = execution.LastWriteVersion
                state.ReplicationState.LastWriteEventID = info.GetLastWriteEventID()
        }

        if info.GetVersionHistories() != nil {
                state.VersionHistories = p.NewDataBlob(
                        info.GetVersionHistories(),
                        common.EncodingType(info.GetVersionHistoriesEncoding()),
                )
        }

        return state, nil
}

func (m *sqlExecutionStore) populateInternalListConcreteExecutions(
        executions []sqlplugin.ExecutionsRow,
) ([]*p.InternalListConcreteExecutionsEntity, error) {

        concreteExecutions := make([]*p.InternalListConcreteExecutionsEntity, 0, len(executions))
        for _, execution := range executions {
                mutableState, err := m.populateWorkflowMutableState(execution)
                if err != nil {
                        return nil, err
                }

                concreteExecution := &p.InternalListConcreteExecutionsEntity{
                        ExecutionInfo:    mutableState.ExecutionInfo,
                        VersionHistories: mutableState.VersionHistories,
                }
                concreteExecutions = append(concreteExecutions, concreteExecution)
        }
        return concreteExecutions, nil
}

uber / cadence / 018965f0-fdaa-4535-a39b-924d1b4fe28b

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