to speed up the metadata loading when service starts up? . . . . . . 555 13.6.8 Other The ANTLR plugin generates codes in the same level directory as src, which is easy to commit by mistake. How to avoid with flexibility thanks to custom systems based on multi‐level (kernel, feature, and ecosystem) plugin capabilities. 1.3. Advantages 3 2 Design Philosophy ShardingSphere adopts the database plus design ${proxy_port} -U ${proxy_username} Use the openGauss client to connect to the ShardingSphere‐Proxy: gsql -r -h ${proxy_host} -p ${proxy_port} -U ${proxy_username} -W ${proxy_password} 7.2. ShardingSphere-Proxy

to speed up the metadata loading when service starts up? . . . . . . 585 13.6.8 Other The ANTLR plugin generates codes in the same level directory as src, which is easy to commit by mistake. How to avoid with flexibility thanks to custom systems based on multi‐level (kernel, feature, and ecosystem) plugin capabilities. 1.3. Advantages 3 2 Design Philosophy ShardingSphere adopts the database plus design ${proxy_port} -U ${proxy_username} Use the openGauss client to connect to the ShardingSphere‐Proxy: gsql -r -h ${proxy_host} -p ${proxy_port} -U ${proxy_username} -W ${proxy_password} 7.2. ShardingSphere-Proxy

How to speed up the metadata loading when service starts up? . . . . . . 463 8.6.8 Other The ANTLR plugin generates codes in the same level directory as src, which is easy to commit by mistake. How to avoid JDBC and a Proxy, and its core adopts a micro‐ kernel and pluggable architecture. Thanks to its plugin‐oriented architecture, features can be flexibly expanded at will. The project is committed to providing with flexibility thanks to custom systems based on multi‐level (kernel, feature, and ecosystem) plugin capabilities. 1.1. What is ShardingSphere 3 Apache ShardingSphere document, v5.2.0 1.1.4 Roadmap

How to speed up the metadata loading when service starts up? . . . . . . 502 8.6.8 Other The ANTLR plugin generates codes in the same level directory as src, which is easy to commit by mistake. How to avoid with flexibility thanks to custom systems based on multi‐level (kernel, feature, and ecosystem) plugin capabilities. 1.2 Design Philosophy ShardingSphere adopts the database plus design philosophy, ${proxy_port} -U ${proxy_username} Use the openGauss client to connect to the ShardingSphere‐Proxy: gsql -r -h ${proxy_host} -p ${proxy_port} -U ${proxy_username} -W ${proxy_password} 2.2. ShardingSphere-Proxy

to speed up the metadata loading when service starts up? . . . . . 354 7.8.28 [Other] The ANTLR plugin generates codes in the same level directory as src, which is easy to commit by mistake. How to avoid o.user_id = u.user_id WHERE o.user_ id = 1; SELECT * FROM t_order o LEFT JOIN t_user_role r ON o.user_id = r.user_id WHERE o. user_id = 1; SELECT * FROM t_order_item i LEFT JOIN t_user u ON i.user_id FROM t_order_item i RIGHT JOIN t_user_role r ON i.user_id = r.user_id WHERE i.user_id = 1; SELECT * FROM t_user u RIGHT JOIN t_user_role r ON u.user_id = r.user_id WHERE u. user_id = 1; Unsupported

to speed up the metadata loading when service starts up? . . . . . 366 7.8.28 [Other] The ANTLR plugin generates codes in the same level directory as src, which is easy to commit by mistake. How to avoid o.user_id = u.user_id WHERE o.user_ id = 1; SELECT * FROM t_order o LEFT JOIN t_user_role r ON o.user_id = r.user_id WHERE o. user_id = 1; SELECT * FROM t_order_item i LEFT JOIN t_user u ON i.user_id FROM t_order_item i RIGHT JOIN t_user_role r ON i.user_id = r.user_id WHERE i.user_id = 1; SELECT * FROM t_user u RIGHT JOIN t_user_role r ON u.user_id = r.user_id WHERE u. user_id = 1; Unsupported

openGauss 客户端连接 ShardingSphere‐Proxy： 7.2. ShardingSphere-Proxy 16 Apache ShardingSphere document gsql -r -h ${proxy_host} -p ${proxy_port} -U ${proxy_username} -W ${proxy_password} 7.2. ShardingSphere-Proxy o.user_id = u.user_id WHERE o.user_ id = 1; SELECT * FROM t_order o LEFT JOIN t_user_role r ON o.user_id = r.user_id WHERE o. user_id = 1; 8.1. 数据分片 28 Apache ShardingSphere document SELECT * FROM FROM t_order_item i RIGHT JOIN t_user_role r ON i.user_id = r.user_id WHERE i.user_id = 1; SELECT * FROM t_user u RIGHT JOIN t_user_role r ON u.user_id = r.user_id WHERE u. user_id = 1; 不支持 CASE WHEN

openGauss 客户端连接 ShardingSphere‐Proxy： 7.2. ShardingSphere-Proxy 16 Apache ShardingSphere document gsql -r -h ${proxy_host} -p ${proxy_port} -U ${proxy_username} -W ${proxy_password} 7.2. ShardingSphere-Proxy o.user_id = u.user_id WHERE o.user_ id = 1; SELECT * FROM t_order o LEFT JOIN t_user_role r ON o.user_id = r.user_id WHERE o. user_id = 1; 8.1. 数据分片 28 Apache ShardingSphere document SELECT * FROM FROM t_order_item i RIGHT JOIN t_user_role r ON i.user_id = r.user_id WHERE i.user_id = 1; SELECT * FROM t_user u RIGHT JOIN t_user_role r ON u.user_id = r.user_id WHERE u. user_id = 1; 不支持 CASE WHEN

${proxy_host} -p ${proxy_port} -U ${proxy_username} 使用 openGauss 客户端连接 ShardingSphere‐Proxy： gsql -r -h ${proxy_host} -p ${proxy_port} -U ${proxy_username} -W ${proxy_password} 2.2. ShardingSphere-Proxy o.user_id = u.user_id WHERE o.user_ id = 1; SELECT * FROM t_order o LEFT JOIN t_user_role r ON o.user_id = r.user_id WHERE o. user_id = 1; SELECT * FROM t_order_item i LEFT JOIN t_user u ON i.user_id FROM t_order_item i RIGHT JOIN t_user_role r ON i.user_id = r.user_id WHERE i.user_id = 1; SELECT * FROM t_user u RIGHT JOIN t_user_role r ON u.user_id = r.user_id WHERE u. user_id = 1; 不支持 CASE WHEN

o.user_id = u.user_id WHERE o.user_ id = 1; SELECT * FROM t_order o LEFT JOIN t_user_role r ON o.user_id = r.user_id WHERE o. user_id = 1; SELECT * FROM t_order_item i LEFT JOIN t_user u ON i.user_id FROM t_order_item i RIGHT JOIN t_user_role r ON i.user_id = r.user_id WHERE i.user_id = 1; SELECT * FROM t_user u RIGHT JOIN t_user_role r ON u.user_id = r.user_id WHERE u. user_id = 1; 不支持 以下 CASE JAEG ER_SAMPLER_TYPE Jaeger 采 样 率 类型 const、proba bilistic、ratel imiting、remote const JAEGE R_SAMPLER_PARAM Jaeger 采 样 率 参数 c onst：0、1，pro babilistic：0.0 ‐ 1.0，ratelimiting：> 0，自定义 每秒采集数量，remot