Contents

创建 DEPLOYMENT

Contents

创建 DEPLOYMENT#

Syntax#

CreateDeploymentStmt
									::= 'DEPLOY' deploymentName SelectStmt
deploymentName
							::= identifier

DEPLOY语句可以将SQL部署到线上。OpenMLDB仅支持部署Select查询语句，并且需要满足OpenMLDB SQL上线规范和要求

DEPLOY deployment_name SELECT clause

Example: 部署一个SQL到online serving#

CREATE DATABASE db1;
-- SUCCEED: Create database successfully

USE db1;
-- SUCCEED: Database changed

CREATE TABLE t1(col0 STRING);
-- SUCCEED: Create successfully

DEPLOY demo_deploy select col0 from t1;
-- SUCCEED: deploy successfully

查看部署详情：

SHOW DEPLOYMENT demo_deploy;
 ----- ------------- 
  DB    Deployment   
 ----- ------------- 
  db1   demo_deploy  
 ----- ------------- 
 1 row in set
 
 ---------------------------------------------------------------------------------- 
  SQL                                                                               
 ---------------------------------------------------------------------------------- 
  CREATE PROCEDURE deme_deploy (col0 varchar) BEGIN SELECT
  col0
FROM
  t1
; END;  
 ---------------------------------------------------------------------------------- 
1 row in set

# Input Schema
 --- ------- ---------- ------------ 
  #   Field   Type       IsConstant  
 --- ------- ---------- ------------ 
  1   col0    kVarchar   NO          
 --- ------- ---------- ------------ 

# Output Schema
 --- ------- ---------- ------------ 
  #   Field   Type       IsConstant  
 --- ------- ---------- ------------ 
  1   col0    kVarchar   NO          
 --- ------- ---------- ------------ 

相关SQL#

SHOW DEPLOYMENT

DROP DEPLOYMENT