Help Center/ MapReduce Service/ Component Operation Guide (LTS) (Paris Region)/ Using CarbonData/ CarbonData Syntax Reference/ DML/ SHOW SEGMENTS
Updated on 2022-12-14 GMT+08:00
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SHOW SEGMENTS

Function

This command is used to list the segments of a CarbonData table.

Syntax

SHOW SEGMENTS FOR TABLE [db_name.]table_name LIMIT number_of_loads;

Parameter Description

Table 1 SHOW SEGMENTS FOR TABLE parameters

Parameter

Description

db_name

Database name. If this parameter is not specified, the current database is used.

table_name

Name of a table in the specified database

number_of_loads

Threshold of records to be listed

Precautions

None

Examples

SHOW SEGMENTS FOR TABLE CarbonDatabase.CarbonTable LIMIT 2;

System Response

+-----+----------+--------------------------+------------------+------------+------------+-------------+--------------+--+
| ID  |  Status  |     Load Start Time      | Load Time Taken  | Partition  | Data Size  | Index Size  | File Format  |
+-----+----------+--------------------------+------------------+------------+------------+-------------+--------------+--+
| 3   | Success  | 2020-09-28 22:53:26.336  | 3.726S           | {}         | 6.47KB     | 3.30KB      | columnar_v3  |
| 2   | Success  | 2020-09-28 22:53:01.702  | 6.688S           | {}         | 6.47KB     | 3.30KB      | columnar_v3  |
+-----+----------+--------------------------+------------------+------------+------------+-------------+--------------+--+
Parent topic: DML