[dts_sync_config ] : `column_mode` field missing from `tables` block, causing API validation failure on PostgreSQL partial-table sync

[Rajendraladkat1919]

Provider Version

1.83.20

Resource

tencentcloud_dts_sync_config

Terraform Configuration

resource "tencentcloud_dts_sync_config" "example" {
  ...
  objects {
    mode = "Partial"
    databases {
      db_name     = "product"
      db_mode     = "Partial"
      schema_name = "public"
      table_mode  = "Partial"

      tables {
        table_name = "bulk_upload_job"
        # column_mode cannot be set — field does not exist in provider schema
      }
    }
  }
}
Expected Behavior
The tables block should accept a column_mode field (value "All" or "Partial") so the Terraform
provider can forward it to the underlying DTS ConfigureSyncJob API call.

Actual Behavior
The column_mode field is absent from the tables block schema. The Tencent DTS API requires
ColumnMode to be set on every Tables object when TableMode = "Partial". Without it, the API
rejects the sync job configuration with a validation error.

Confirmed by Tencent Cloud DTS support: ColumnMode is a required parameter and must be set to "All"
for standard full-column synchronization.

Root Cause (code references)
The Table struct in the SDK already carries the field:


// vendor/github.com/tencentcloud/tencentcloud-sdk-go/tencentcloud/dts/v20211206/models.go
type Table struct {
    TableName       *string
    NewTableName    *string
    FilterCondition *string
    ColumnMode      *string  // present in SDK, NOT wired in provider
    Columns         []*Column
}
In tencentcloud/services/dts/resource_tc_dts_sync_config.go the tables schema block (around line 255)
defines only table_name, new_table_name, and filter_condition. column_mode is never added to the
schema, never read in the refresh path (~line 907), and never written in the create/update path (~line 1414).

**Suggested Fix** :
1. Schema — add the field:


"column_mode": {
    Type:     schema.TypeString,
    Optional: true,
    Description: "Column selection mode: All (sync all columns). Required by the API when table_mode is Partial.",
},

if tables.ColumnMode != nil {
    tablesMap["column_mode"] = tables.ColumnMode
}

if v, ok := tablesMap["column_mode"]; ok {
    table.ColumnMode = helper.String(v.(string))
}

**Workaround** :
None available through Terraform. The only current workaround is to configure the job manually via the
Tencent Cloud console or API outside of Terraform.