Help Center/ DataArts Studio/ API Reference/ Manager API/ Metadata Acquisition/ Obtaining Table Fields in the Data Source
Updated on 2025-11-17 GMT+08:00
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Obtaining Table Fields in the Data Source

Function

This API is used to obtain table fields in the data source.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{project_id}/{connection_id}/datatables/{table_id}/columns

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain the project ID, see Project ID and Account ID.

connection_id

Yes

String

Data connection ID, which can be obtained from the data connection list.

table_id

Yes

String

Table ID
Table 2 Query Parameters

Parameter

Mandatory

Type

Description

limit

No

String

Maximum number of data records

offset

No

String

Offset

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token. This parameter is mandatory for token authentication. Call the "Obtaining the User Token" API of IAM to obtain the value of X-Subject-Token in the response header.

workspace

Yes

String

Workspace ID

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

table_id

String

ID of a data table

total_count

Integer

Number of fields in the current table

columns

Array of ColumnsList objects

Field list
Table 5 ColumnsList

Parameter

Type

Description

comment

String

Field comment

column_name

String

Field name

column_type

String

Field type

seq_number

Integer

Field sequence

primary

Boolean

Whether the field is a primary key

partition_col

Boolean

Whether to split fields

Status code: 400

Table 6 Response body parameters

Parameter

Type

Description

error_msg

String

Returned error information.

error_code

String

Returned error code.

Status code: 500

Table 7 Response body parameters

Parameter

Type

Description

error_msg

String

Returned error information.

error_code

String

Returned error code.

Example Requests

None

Example Responses

Status code: 200

The list of fields is returned.

{
  "columns" : [ {
    "comment" : "",
    "column_name" : "age",
    "column_type" : "integer",
    "seq_number" : 2,
    "primary" : false,
    "partition_col" : false
  }, {
    "comment" : "",
    "column_name" : "address",
    "column_type" : "character varying",
    "seq_number" : 3,
    "primary" : false,
    "partition_col" : false
  }, {
    "comment" : "",
    "column_name" : "phonenum",
    "column_type" : "character varying",
    "seq_number" : 4,
    "primary" : false,
    "partition_col" : false
  } ],
  "total_count" : 7,
  "table_id" : "NativeTable-9b18c0ad6ef5404caef4e6cbaccdae6f-postgres-dm_autotest-QQQQQQQstudents_infoweq"
}

Status code: 400

Bad request.

{
  "error_code" : "DAYU.4402",
  "error_msg" : "The operation failed, detail msg {0}."
}

Status code: 500

Internal server error.

{
  "error_code" : "DAYU.3531",
  "error_msg" : "Internal server error: {0}"
}

Status Codes

Status Code

Description

200

The list of fields is returned.

400

Bad request.

500

Internal server error.
Parent Topic: Metadata Acquisition