# DataMigrationRequest
## Properties
Name | Type | Description | Notes
------------ | ------------- | ------------- | -------------
**source_resource_path** | **String** | Path of a resource the **caller** can read (RLS-bound, #1404 -- not merely one that exists in the workspace). Which connector opens it is **derived from that resource's `resource_type`** (#1419); there is deliberately no store-kind field on this body. A tagged field would be a second source of truth that can disagree with the resource it names, and the resolver has to fetch the resource anyway. A `resource_type` with no connector in this build is a **400 naming it**, never a silent attempt to open it as Postgres. Supported today: `postgresql`, and `mysql` -- which serves **MySQL and MariaDB alike** (#1217/#1461: one resource type, one driver, one connector), on builds carrying the `mysql` cargo feature. File/object sources (#1218) and MongoDB (#1219) each add one, and a client that hard-codes the list will drift -- the supported set is per-*build*, not per-version, and the 400's message enumerates what the instance it is talking to actually supports. |
**target_resource_path** | **String** | As `source_resource_path`, but the connector must also be usable as a *target*. The two are dispatched separately: a source-only connector (MongoDB is one -- `store_mongo` reads documents and does not write them) resolves fine as a source and is refused here. `dry_run` applies the same check, so a preview never greenlights a `run` against a connection this build could not write to. |
**source_table** | **String** | |
**target_table** | **String** | |
**mapping** | [**Vec<models::ColumnMapping>**](ColumnMapping.md) | |
**batch_size** | Option<**i64**> | Rows fetched from the source and inserted into the target per round-trip. Defaults to 1000 when omitted; rejected with 400 if it exceeds the hard ceiling of 10000 (a batch is materialized in memory in a single round-trip). | [optional]
**conflict_mode** | Option<[**models::ConflictMode**](ConflictMode.md)> | | [optional]
**resume_run_id** | Option<**i64**> | `run` only. Id of an interrupted `data_migration_run` to continue from its checkpoint instead of starting a new run. The run that cannot be safely continued is a 400 naming the reason, never a silent restart from the beginning. | [optional]
**definition_path** | Option<**String**> | `path` of the saved `data_migration` definition this run came from (#1220), recorded on the run row. Purely a label: the config that runs is the one in this body, and nothing is read back out of the definition -- a run must never execute a mapping different from the one its caller sent. Omit it for a one-off run, which stays fully supported. | [optional]
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