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
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
create table carbon01(a int,b string,c string) stored as carbondata;
insert into table carbon01 select 1,'a','aa';
insert into table carbon01 select 2,'b','bb';
insert into table carbon01 select 3,'c','cc';
SHOW SEGMENTS FOR TABLE carbon01 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 | +-----+----------+--------------------------+------------------+------------+------------+-------------+--------------+--+
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