Version: 0.8

TABLES

The TABLES table provides information about tables in databases:

USE INFORMATION_SCHEMA;
DESC TABLES;

The output is as follows:

+---------------+--------+------+------+---------+---------------+
| Column        | Type   | Key  | Null | Default | Semantic Type |
+---------------+--------+------+------+---------+---------------+
| table_catalog | String |      | NO   |         | FIELD         |
| table_schema  | String |      | NO   |         | FIELD         |
| table_name    | String |      | NO   |         | FIELD         |
| table_type    | String |      | NO   |         | FIELD         |
| table_id      | UInt32 |      | YES  |         | FIELD         |
| engine        | String |      | YES  |         | FIELD         |
+---------------+--------+------+------+---------+---------------+
6 rows in set (0.00 sec)

SELECT * FROM tables WHERE table_schema='public' AND table_name='monitor'\G

*************************** 1. row ***************************
table_catalog: greptime
 table_schema: public
   table_name: monitor
   table_type: BASE TABLE
     table_id: 1025
       engine: mito
1 row in set (0.01 sec)

The following statements are equivalent:

SELECT table_name FROM INFORMATION_SCHEMA.TABLES
  WHERE table_schema = '<db_name>'
  [AND table_name LIKE 'monitor']

SHOW TABLES
  FROM db_name
  [LIKE 'monitor']

The description of columns in the TABLES table is as follows:

table_catalog: The catalog to which the table belongs. The value is always greptime.
table_schema: The database to which the table belongs.
table_name: The name of the table.
table_type: The type of the table.
- BASE TABLE for a table.
- TEMPORARY for a temporary result set.
- VIEW for a view.
table_id: The ID of the table.
engine: The storage engine of the table used.