SHOW MATERIALIZED VIEW

SHOW MATERIALIZED VIEW

Description

Shows all or one specific asynchronous materialized view.

Syntax

SHOW MATERIALIZED VIEW
[FROM db_name]
[
WHERE
[NAME { = "mv_name" | LIKE "mv_name_matcher"}
]

Parameters in brackets [] is optional.

Parameters

Parameter	Required	Description
db_name	no	The name of the database to which the materialized view resides. If this parameter is not specified, the current database is used by default.
mv_name	no	The name of the materialized view to show.
mv_name_matcher	no	The matcher used to filter materialized views.

Returns

Return	Description
id	The ID of the materialized view.
database_name	The name of the database in which the materialized view resides.
name	The name of the materialized view.
rows	The number of data rows in the materialized view.
text	The statement used to create the materialized view.

Examples

MySQL > SHOW MATERIALIZED VIEW\G
*************************** 1. row ***************************
           id: 10099
         name: order_mv
database_name: test
         text: CREATE MATERIALIZED VIEW `order_mv` (`order_id`, `total`)
DISTRIBUTED BY HASH(`order_id`)
REFRESH ASYNC START("2022-09-01 10:00:00") EVERY(INTERVAL 1 DAY)
PROPERTIES (
"replication_num" = "3",
"storage_medium" = "HDD"
)
AS SELECT `order_list`.`order_id`, sum(`goods`.`price`) AS `total`
FROM `wlc`.`order_list` INNER JOIN `wlc`.`goods` ON `goods`.`item_id1` = `order_list`.`item_id2`
GROUP BY `order_list`.`order_id`;
         rows: 3
1 row in set (0.02 sec)