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Workflow persistence error #3938

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Workflow persistence error #3938

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160dc1c
fix(persistence): chunk block and edge inserts to prevent sql variabl…
Siddhartha-singh01 Mar 5, 2026
2e63582
docs(persistence): add comments for chunk size math
Siddhartha-singh01 Mar 6, 2026
079b113
Merge staging into fix/workflow-persistence-error to resolve conflict…
Siddhartha-singh01 Apr 4, 2026
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37 changes: 25 additions & 12 deletions apps/sim/lib/workflows/persistence/utils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -463,9 +463,9 @@ export async function loadWorkflowFromNormalizedTables(
if (subflow.type === SUBFLOW_TYPES.LOOP) {
const loopType =
(config as Loop).loopType === 'for' ||
(config as Loop).loopType === 'forEach' ||
(config as Loop).loopType === 'while' ||
(config as Loop).loopType === 'doWhile'
(config as Loop).loopType === 'forEach' ||
(config as Loop).loopType === 'while' ||
(config as Loop).loopType === 'doWhile'
? (config as Loop).loopType
: 'for'

Expand Down Expand Up @@ -502,7 +502,7 @@ export async function loadWorkflowFromNormalizedTables(
distribution: (config as Parallel).distribution ?? '',
parallelType:
(config as Parallel).parallelType === 'count' ||
(config as Parallel).parallelType === 'collection'
(config as Parallel).parallelType === 'collection'
? (config as Parallel).parallelType
: 'count',
enabled: finalBlocks[subflow.id]?.enabled ?? true,
Expand Down Expand Up @@ -545,6 +545,9 @@ export async function saveWorkflowToNormalizedTables(
tx.delete(workflowSubflows).where(eq(workflowSubflows.workflowId, workflowId)),
])

const CHUNK_SIZE = 50

// Insert blocks
if (Object.keys(state.blocks).length > 0) {
const blockInserts = Object.values(state.blocks).map((block) => ({
id: block.id,
Expand All @@ -566,9 +569,15 @@ export async function saveWorkflowToNormalizedTables(
locked: block.locked ?? false,
}))

await tx.insert(workflowBlocks).values(blockInserts)
// SQLite limits bound parameters to 999 per statement.
// workflowBlocks has 17 fields -> max safe chunk = floor(999/17) = 58.
// Using 50 for a conservative margin.
for (let i = 0; i < blockInserts.length; i += CHUNK_SIZE) {
await tx.insert(workflowBlocks).values(blockInserts.slice(i, i + CHUNK_SIZE))
}
}

// Insert edges
if (state.edges.length > 0) {
const edgeInserts = state.edges.map((edge) => ({
id: edge.id,
Expand All @@ -579,7 +588,9 @@ export async function saveWorkflowToNormalizedTables(
targetHandle: edge.targetHandle || null,
}))

await tx.insert(workflowEdges).values(edgeInserts)
for (let i = 0; i < edgeInserts.length; i += CHUNK_SIZE) {
await tx.insert(workflowEdges).values(edgeInserts.slice(i, i + CHUNK_SIZE))
}
}

const subflowInserts: SubflowInsert[] = []
Expand All @@ -603,7 +614,9 @@ export async function saveWorkflowToNormalizedTables(
})

if (subflowInserts.length > 0) {
await tx.insert(workflowSubflows).values(subflowInserts)
for (let i = 0; i < subflowInserts.length; i += CHUNK_SIZE) {
await tx.insert(workflowSubflows).values(subflowInserts.slice(i, i + CHUNK_SIZE))
}
}
}

Expand Down Expand Up @@ -806,11 +819,11 @@ export function regenerateWorkflowStateIds(state: RegenerateStateInput): Regener
blockIdMapping.set(oldId, crypto.randomUUID())
})

// Map edge IDs
// Map edge IDs

;(state.edges || []).forEach((edge: Edge) => {
edgeIdMapping.set(edge.id, crypto.randomUUID())
})
; (state.edges || []).forEach((edge: Edge) => {
edgeIdMapping.set(edge.id, crypto.randomUUID())
})
Comment on lines +822 to +826
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@greptile-apps greptile-apps bot Apr 4, 2026

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P2 Inconsistent indentation introduced

The "Map edge IDs" block (comment + forEach) has been re-indented to 4 spaces, while every other statement at the same scope level uses 2-space indentation (see lines 817–820, 828–836). This makes the block visually appear nested inside the previous forEach, which it is not.

Suggested change
// Map edge IDs
;(state.edges || []).forEach((edge: Edge) => {
edgeIdMapping.set(edge.id, crypto.randomUUID())
})
; (state.edges || []).forEach((edge: Edge) => {
edgeIdMapping.set(edge.id, crypto.randomUUID())
})
// Map edge IDs
;(state.edges || []).forEach((edge: Edge) => {
edgeIdMapping.set(edge.id, crypto.randomUUID())
})


// Map loop IDs
Object.keys(state.loops || {}).forEach((oldId) => {
Expand Down Expand Up @@ -884,7 +897,7 @@ export function regenerateWorkflowStateIds(state: RegenerateStateInput): Regener
newBlocks[newId] = newBlock
})

// Regenerate edges with updated source/target references
// Regenerate edges with updated source/target references
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P2 Comment indented to wrong level

This comment was shifted to 4-space indentation, but the forEach call it labels on line 902 remains at 2-space indentation. The mismatch makes the comment appear detached from the code it describes.

Suggested change
// Regenerate edges with updated source/target references
// Regenerate edges with updated source/target references


;(state.edges || []).forEach((edge: Edge) => {
const newId = edgeIdMapping.get(edge.id)!
Expand Down