proxy.Bootstrap, how to solve it? . . . . . . . . . . . 304 7.7.5 5. [Proxy] How to add a new logic schema dynamically when use ShardingSphere‐Proxy? . . . . . . . . . . . . . . . . . . . . . . . . . . such as Navicat to connect to Sharding Sphere‐ Proxy, if Sharding Sphere‐Proxy does not create a Schema or does not add a Re‐ source, the client connection will fail? . . . . . . . . . . . . . . . . ShardingSphere. Logic Table The logical name of the horizontal sharding databases (tables) with the same schema, it is the logical table identification in SQL. For instance, the data of order is divided into

proxy.Bootstrap, how to solve it? . . . . . . . . . . . 358 7.8.5 [Proxy] How to add a new logic schema dynamically when use ShardingSphere‐ Proxy? . . . . . . . . . . . . . . . . . . . . . . . . . . client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a Schema or does not add a Resource, the client connection will fail? . . . . . . . . . . . . . . . . . finalfunc = avg_finalfn) CREATE TABLE agg_data_2k AS SELECT g FROM generate_series(0, 1999) g; CREATE SCHEMA alt_nsp1; ALTER AGGREGATE alt_agg3(int) OWNER TO regress_alter_generic_user2; CREATE CONVERSION

proxy.Bootstrap, how to solve it? . . . . . . . . . . . 346 7.8.5 [Proxy] How to add a new logic schema dynamically when use ShardingSphere‐ Proxy? . . . . . . . . . . . . . . . . . . . . . . . . . . client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a Schema or does not add a Resource, the client connection will fail? . . . . . . . . . . . . . . . . . finalfunc = avg_finalfn) CREATE TABLE agg_data_2k AS SELECT g FROM generate_series(0, 1999) g; CREATE SCHEMA alt_nsp1; ALTER AGGREGATE alt_agg3(int) OWNER TO regress_alter_generic_user2; CREATE CONVERSION

Bootstrap，如何解决？ . . . . . . . . . . . 289 7.7.5 5. [Proxy] 在使用 ShardingSphere‐Proxy 的时候，如何动态在添加新的 logic schema？ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289 7.7.6 6. [Proxy] 289 7.7.7 7. [Proxy] 使用 Navicat 等第三方数据库工具连接 ShardingSphere‐Proxy 时，如 果 ShardingSphere‐Proxy 没有创建 Schema 或者没有添加 Resource，连接失败？ 290 7.7.8 8. [分片] Cloud not resolve placeholder ⋯in string value ⋯异常的解决方法 ├──${schema_1} # Schema 名称 1 ├ ├ ├──dataSources # 数据源配置 ├ ├ ├──rules # 规则配置 ├ ├ ├──schema # 表结构配置 ├ ├──${schema_2} # Schema 名称 2 ├ ├ ├──dataSources # 数据源配置 ├ ├ ├──rules # 规则配置 ├ ├ ├──schema # 表结构配置

spring‐boot‐starter of certain datasource pool(such as druid)? . . . . . . . 300 7.21 How to add a new logic schema dynamically when use ShardingSphere‐Proxy? . . . . . 301 7.22 How to use a suitable database tools it can be divided into five types, schema & table route, database schema route, database instance route, unicast route and ignore route. Schema & Table Route Schema & table route is used to deal with good_prority IN (1, 10); SELECT * FROM t_order_3 WHERE good_prority IN (1, 10); Database Schema Route Database schema route is used to deal with database operations, including the SET database manage‐ ment

. . . . . . . . . . . . . . 291 7.21 在使用 sharing‐proxy 的时候，如何动态在 ShardingSphere‐UI 上添加新的 logic schema？291 7.22 在使用 ShardingSphere‐Proxy 时，怎么使用合适的工具连接到 ShardingSphere‐Proxy？ 291 7.23 引入 shardingsph 2 个真实库。则实际会在 t_order_0 和 t_order_1 上都执行这个命 令。 全实例路由 全实例路由用于 DCL 操作，授权语句针对的是数据库的实例。无论一个实例中包含多少个 Schema，每 个数据库的实例只执行一次。例如： CREATE USER customer@127.0.0.1 identified BY '123'; 这个命令将在所有的真实数据库实例中执行，以确保 阻断路由 阻断路由用于屏蔽 SQL 对数据库的操作，例如： USE order_db; 这个命令不会在真实数据库中执行，因为 ShardingSphere 采用的是逻辑 Schema 的方式，无需将切换数 据库 Schema 的命令发送至数据库中。 路由引擎的整体结构划分如下图。 3.1. 数据分片 30 Apache ShardingSphere document, v5.0.0-beta

2 Limitations Proxy provides limited support for system databases / tables (such as information_schema, pg_catalog). When connecting to Proxy through some graph database clients, the client or proxy such as paging, de‐duplication, sorting, grouping, aggregation, table association, etc. Support SCHEMA DDL and DML statements of PostgreSQL and openGauss database. Normal Queries • main statement SELECT ShardingSphereDataSourceFactory implements the stan‐ dard JDBC DataSource interface. String databaseName = "foo_schema"; // Indicate logic database name ModeConfiguration modeConfig = ... // Build mode configuration

Bootstrap，如何解决？ . . . . . . . . . . . . 305 7.8.5 [Proxy] 在使用 ShardingSphere‐Proxy 的时候，如何动态在添加新的 logic schema？ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 7.8.6 [Proxy] 在 . 305 7.8.7 [Proxy] 使用 Navicat 等第三方数据库工具连接 ShardingSphere‐Proxy 时，如果 ShardingSphere‐Proxy 没有创建 Schema 或者没有添加 Resource，连接失败？ . 306 7.8.8 [分片] Cloud not resolve placeholder ⋯in string value ⋯异常的解决方法? finalfunc = avg_finalfn) CREATE TABLE agg_data_2k AS SELECT g FROM generate_series(0, 1999) g; CREATE SCHEMA alt_nsp1; ALTER AGGREGATE alt_agg3(int) OWNER TO regress_alter_generic_user2; CREATE CONVERSION

Bootstrap，如何解决？ . . . . . . . . . . . . 301 7.8.5 [Proxy] 在使用 ShardingSphere‐Proxy 的时候，如何动态在添加新的 logic schema？ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 7.8.6 [Proxy] 在 . 301 7.8.7 [Proxy] 使用 Navicat 等第三方数据库工具连接 ShardingSphere‐Proxy 时，如果 ShardingSphere‐Proxy 没有创建 Schema 或者没有添加 Resource，连接失败？ . 302 7.8.8 [分片] Cloud not resolve placeholder ⋯in string value ⋯异常的解决方法? finalfunc = avg_finalfn) CREATE TABLE agg_data_2k AS SELECT g FROM generate_series(0, 1999) g; CREATE SCHEMA alt_nsp1; ALTER AGGREGATE alt_agg3(int) OWNER TO regress_alter_generic_user2; CREATE CONVERSION

2 Limitations Proxy provides limited support for system databases / tables (such as information_schema, pg_catalog). When connecting to Proxy through some graph database clients, the client or proxy such as paging, de‐duplication, sorting, grouping, aggregation, table association, etc. Support SCHEMA DDL and DML statements of PostgreSQL and openGauss database. Normal Queries • main statement SELECT ShardingSphereDataSourceFactory implements the stan‐ dard JDBC DataSource interface. String databaseName = "foo_schema"; // Indicate logic database name ModeConfiguration modeConfig = ... // Build mode configuration