don't overwrite options for child workflows when ContinueAsNew

flow/workflows/cdc_flow.go

@@ -29,7 +29,7 @@ type CDCFlowWorkflowState struct {
 	Progress []string
 	// Accumulates status for sync flows spawned.
 	SyncFlowStatuses []*model.SyncResponse
-	// Accumulates status for sync flows spawned.
+	// Accumulates status for normalize flows spawned.
 	NormalizeFlowStatuses []model.NormalizeResponse
 	// Current signalled state of the peer flow.
 	ActiveSignal shared.CDCFlowSignal
@@ -48,8 +48,6 @@ type CDCFlowWorkflowState struct {
 	FlowConfigUpdates []*protos.CDCFlowConfigUpdate
 	// options passed to all SyncFlows
 	SyncFlowOptions *protos.SyncFlowOptions
-	// options passed to all NormalizeFlows
-	NormalizeFlowOptions *protos.NormalizeFlowOptions
 	// initially copied from config, all changes are made here though
 	TableMappings []*protos.TableMapping
 }
@@ -61,8 +59,9 @@ func NewCDCFlowWorkflowState(cfgTableMappings []*protos.TableMapping) *CDCFlowWo
 		tableMappings = append(tableMappings, proto.Clone(tableMapping).(*protos.TableMapping))
 	}
 	return &CDCFlowWorkflowState{
-		Progress:              []string{"started"},
-		SyncFlowStatuses:      nil,
+		Progress: []string{"started"},
+		// 1 more than the limit of 10
+		SyncFlowStatuses:      make([]*model.SyncResponse, 0, 11),
 		NormalizeFlowStatuses: nil,
 		ActiveSignal:          shared.NoopSignal,
 		SyncFlowErrors:        nil,
@@ -79,7 +78,6 @@ func NewCDCFlowWorkflowState(cfgTableMappings []*protos.TableMapping) *CDCFlowWo
 		TableNameSchemaMapping: nil,
 		FlowConfigUpdates:      nil,
 		SyncFlowOptions:        nil,
-		NormalizeFlowOptions:   nil,
 		TableMappings:          tableMappings,
 	}
 }
@@ -262,7 +260,7 @@ func CDCFlowWorkflowWithConfig(
 		if cfg.Resync {
 			for _, mapping := range state.TableMappings {
 				oldName := mapping.DestinationTableIdentifier
-				newName := fmt.Sprintf("%s_resync", oldName)
+				newName := oldName + "_resync"
 				mapping.DestinationTableIdentifier = newName
 			}
 		}
@@ -362,16 +360,16 @@ func CDCFlowWorkflowWithConfig(
 		}
 	}
 
-	state.SyncFlowOptions = &protos.SyncFlowOptions{
-		BatchSize: cfg.MaxBatchSize,
-		// this means the env variable assignment path is never hit
-		IdleTimeoutSeconds:     cfg.IdleTimeoutSeconds,
-		SrcTableIdNameMapping:  state.SrcTableIdNameMapping,
-		TableNameSchemaMapping: state.TableNameSchemaMapping,
-		TableMappings:          state.TableMappings,
-	}
-	state.NormalizeFlowOptions = &protos.NormalizeFlowOptions{
-		TableNameSchemaMapping: state.TableNameSchemaMapping,
+	// when we carry forward state, don't remake the options
+	if state.SyncFlowOptions == nil {
+		state.SyncFlowOptions = &protos.SyncFlowOptions{
+			BatchSize: cfg.MaxBatchSize,
+			// this means the env variable assignment path is never hit
+			IdleTimeoutSeconds:     cfg.IdleTimeoutSeconds,
+			SrcTableIdNameMapping:  state.SrcTableIdNameMapping,
+			TableNameSchemaMapping: state.TableNameSchemaMapping,
+			TableMappings:          state.TableMappings,
+		}
 	}
 
 	currentSyncFlowNum := 0
@@ -396,7 +394,6 @@ func CDCFlowWorkflowWithConfig(
 		normCtx,
 		NormalizeFlowWorkflow,
 		cfg,
-		state.NormalizeFlowOptions,
 	)
 
 	var normWaitChan workflow.ReceiveChannel

flow/workflows/normalize_flow.go

@@ -1,7 +1,6 @@
 package peerflow
 
 import (
-	"fmt"
 	"log/slog"
 	"time"
 
@@ -15,10 +14,8 @@ import (
 
 func NormalizeFlowWorkflow(ctx workflow.Context,
 	config *protos.FlowConnectionConfigs,
-	options *protos.NormalizeFlowOptions,
 ) (*model.NormalizeFlowResponse, error) {
 	logger := workflow.GetLogger(ctx)
-	tableNameSchemaMapping := options.TableNameSchemaMapping
 
 	normalizeFlowCtx := workflow.WithActivityOptions(ctx, workflow.ActivityOptions{
 		StartToCloseTimeout: 7 * 24 * time.Hour,
@@ -28,12 +25,13 @@ func NormalizeFlowWorkflow(ctx workflow.Context,
 	results := make([]model.NormalizeResponse, 0, 4)
 	errors := make([]string, 0)
 	syncChan := workflow.GetSignalChannel(ctx, shared.NormalizeSyncSignalName)
+	var tableNameSchemaMapping map[string]*protos.TableSchema
 
 	var stopLoop, canceled bool
 	var lastSyncBatchID, syncBatchID int64
 	lastSyncBatchID = -1
 	syncBatchID = -1
-	selector := workflow.NewNamedSelector(ctx, fmt.Sprintf("%s-normalize", config.FlowJobName))
+	selector := workflow.NewNamedSelector(ctx, config.FlowJobName+"-normalize")
 	selector.AddReceive(ctx.Done(), func(_ workflow.ReceiveChannel, _ bool) {
 		canceled = true
 	})
@@ -46,9 +44,7 @@ func NormalizeFlowWorkflow(ctx workflow.Context,
 		if s.SyncBatchID > syncBatchID {
 			syncBatchID = s.SyncBatchID
 		}
-		if len(s.TableNameSchemaMapping) != 0 {
-			tableNameSchemaMapping = s.TableNameSchemaMapping
-		}
+		tableNameSchemaMapping = s.TableNameSchemaMapping
 	})
 	for !stopLoop {
 		selector.Select(ctx)

protos/flow.proto

@@ -106,10 +106,6 @@ message SyncFlowOptions {
   repeated TableMapping table_mappings = 6;
 }
 
-message NormalizeFlowOptions {
-  map<string, TableSchema> table_name_schema_mapping = 1;
-}
-
 message LastSyncState {
   int64 checkpoint = 1;
 }