Workflow Approval History

OptimaJet Team Updated 2026-10-12 2 min read 300 words

The WorkflowApprovalHistory table is part of the SQL Server database schema used by Workflow Engine. The WorkflowApprovalHistory table stores approval decisions associated with process instances. This page lists the table columns in database order together with types, nullability, primary keys, defaults, and indexes.

Table columns

The WorkflowApprovalHistory table contains 11 columns in database order. Data types and default expressions use the syntax defined by SQL Server.

WorkflowApprovalHistory columns
Position	Column	Database type	Nullable	Primary key	Default
1	`Id`	`uniqueidentifier`	No	Yes	-
2	`ProcessId`	`uniqueidentifier`	No	No	-
3	`IdentityId`	`nvarchar(256)`	Yes	No	-
4	`AllowedTo`	`nvarchar(max)`	Yes	No	-
5	`TransitionTime`	`datetime`	Yes	No	-
6	`Sort`	`bigint`	Yes	No	-
7	`InitialState`	`nvarchar(1024)`	No	No	-
8	`DestinationState`	`nvarchar(1024)`	No	No	-
9	`TriggerName`	`nvarchar(1024)`	Yes	No	-
10	`Commentary`	`nvarchar(max)`	Yes	No	-
11	`TenantId`	`nvarchar(128)`	Yes	No	-

Database indexes

The WorkflowApprovalHistory table defines 3 database indexes. Definitions retain the column or field order and sort direction used by the database.

WorkflowApprovalHistory indexes
Index	Unique	Definition
`IX_IdentityId`	No	`[IdentityId]`
`IX_ProcessId_Clustered`	No	`[ProcessId]`
`PK_WorkflowApprovalHistory`	Yes	`[Id]`

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