Query table data

Read sampled data from a table. When the number of rows is not explicitly specified, the service returns 100 rows by default.

POST https://moi.matrixorigin.cn/newmoi/catalog/table/data

Preparation before calling

First query the object in the database to obtain the target table ID, or prepare the table name and database positioning parameters. Prepare the personal access token, target workspace ID, and table location information that has access to the target workspace.

The example below uses:

  • $AI_STUDIO_API_KEY: The actual personal access token, passed through the X-API-Key Header.

  • $WORKSPACE_ID: Target workspace ID, passed through X-Workspace-ID Header.

  • $TABLE_ID: Table ID to read data from.

Request example

curl -X POST "https://moi.matrixorigin.cn/newmoi/catalog/table/data" \
  -H "X-API-Key: $AI_STUDIO_API_KEY" \
  -H "X-Workspace-ID: $WORKSPACE_ID" \
  -H 'Content-Type: application/json' \
  -d '{
    "id": '"$TABLE_ID"'
  }'

Request body

The positioning method of the table is consistent with query table information: use id, or use name plus database_id/database_name.

Parameter

Type

Required

Description

id

integer

Conditionally required

Table ID.

name

string

Conditionally required

Table name; required if id is not provided.

database_id

integer

Conditionally required

Non-system database ID; mutually exclusive with database_name.

database_name

string

Conditionally required

System database name; mutually exclusive with database_id.

page

integer

No

Page number, default 1.

page_size

integer

No

Number of lines per page, default 100.

preview_lines

integer

No

Number of preview lines.

include_total

boolean

No

Whether to return the total number of rows; return if not transmitted.

Successful response

On success, 200 and the sampling result are returned. Returns 403 when there is no read permission.

{
  "code": "OK",
  "msg": "OK",
  "data": {
    "data": [
      ["1", "100.00"]
    ],
    "columns": [
      {
        "name": "id",
        "type": "INT"
      },
      {
        "name": "amount",
        "type": "DECIMAL"
      }
    ],
    "total_rows": 120,
    "page": 1,
    "page_size": 100
  }
}

The response fields are as follows.

Field

Type

Description

code

string

OK on success.

msg

string

OK on success.

data.data

array

Row data; each inner array is arranged in the order of columns.

data.columns

array

Column information, each item contains name and type.

data.total_rows

integer

Total number of table rows; only returned when include_total is requested.

data.page

integer

Current page number.

data.page_size

integer

The upper limit of the number of rows in the current page.

Error response

{
  "code": "ErrParamInvalid",
  "msg": "表定位参数无效",
  "data": null
}

Common HTTP errors

HTTP status code

error code

Common causes

Recommended actions

400

ErrParamInvalid

Invalid table ID, name positioning, or paging parameters.

Use the table ID, or complete the table name and database location parameters.

403

ErrForbidden

The current identity does not have table read permission.

Check workspace and table authorizations.

409

ErrReadonlySystemDatabase

The system database does not support the current read path.

Use supported table positioning methods instead.

500

ErrServer

The service cannot read table data.

Record the request time and error message and try again; if it continues to fail, contact support.

Follow-up operations

When modifications are needed Update database. When returning the list Query file products.

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