using a 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? . . . . . . . . . . . . . standalone environment, through which data sources, rules, and metadata can be per‐ sisted. Will create a .shardingsphere file in the root directory to store configuration data by default. 3.2.4 Cluster TABLE t_order CHECK TABLE t_order SET RESOURCE GROUP group_name DROP RESOURCE GROUP group_name CREATE RESOURCE GROUP group_name TYPE = SYSTEM ALTER RESOURCE GROUP rg1 VCPU = 0‐63 Source Codes: https://github

Rules Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1.3 3. Create Data Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 ShardingSphere‐Proxy 3 Start Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.4 Create Migration Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.5 Related documents using a 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? . . . . . . . . . . . . .

2. Rules Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1.3 3. Create Data Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 ShardingSphere‐Proxy Start Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.4 4. Create Migration Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.5 5. Related documents a client 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? . . . . . . . . . . . .

Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.1 Connect: Create database upper level standard . . . . . . . . . . . . . . . . . . 5 1.2.2 Enhance: Database computing using a client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not add a resource, the client connection will fail? . . . . . . . . . . . . in the ecology. 1.2. Design Philosophy 4 Apache ShardingSphere document, v5.2.0 1.2.1 Connect: Create database upper level standard Through flexible adaptation of database protocols, SQL dialects, and

Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.1 Connect: Create database upper level standard . . . . . . . . . . . . . . . . . . 4 1.2.2 Enhance: Database computing using a client such as Navicat to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not add a resource, the client connection will fail? . . . . . . . . . . . . in the ecology. 1.2. Design Philosophy 3 Apache ShardingSphere document, v5.2.1 1.2.1 Connect: Create database upper level standard Through flexible adaptation of database protocols, SQL dialects, and

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Design Philosophy 4 2.1 Connect: Create database upper level standard . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Enhance: Database 4 Proxy When using a client to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not register a storage unit, the client connection will fail? . . . . . . . missing capabilities of the database in the ecology. 4 Apache ShardingSphere document 2.1 Connect: Create database upper level standard Through flexible adaptation of database protocols, SQL dialects, and

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Design Philosophy 4 2.1 Connect: Create database upper level standard . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Enhance: Database 4 Proxy When using a client to connect to ShardingSphere‐Proxy, if ShardingSphere‐Proxy does not create a database or does not register a storage unit, the client connection will fail? . . . . . . . missing capabilities of the database in the ecology. 4 Apache ShardingSphere document 2.1 Connect: Create database upper level standard Through flexible adaptation of database protocols, SQL dialects, and

2. Rules Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1.3 3. Create Data Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 ShardingSphere‐Proxy Start Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3.4 4. Create Migration Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Concepts & Features refer to Configuration Manual for more details. 2.1.3 3. Create Data Source Use ShardingSphereDataSourceFactory and rule configurations to create ShardingSphere- DataSource, which implements DataSource

TABLE t_order CHECK TABLE t_order SET RESOURCE GROUP group_name DROP RESOURCE GROUP group_name CREATE RESOURCE GROUP group_name TYPE = SYSTEM ALTER RESOURCE GROUP rg1 VCPU = 0‐63 源 码：https://github 不支持的 SQL 清单如下： SQL CREATE type avg_state AS (total bigint, count bigint); CREATE AGGREGATE my_avg(int4) (stype = avg_state, sfunc = avg_transfn, finalfunc = avg_finalfn) CREATE TABLE agg_data_2k AS generate_series(0, 1999) g; CREATE SCHEMA alt_nsp1; ALTER AGGREGATE alt_agg3(int) OWNER TO regress_alter_generic_user2; CREATE CONVERSION alt_conv1 FOR ‘LATIN1’TO ‘UTF8’FROM iso8859_1_to_utf8; CREATE FOREIGN DATA

OFFSET ? 运算表达式中包含分片键 当分片键处于运算表达式中时，无法通过 SQL 字面提取用于分片的值，将导致全路由。例如，假设 create_time 为分片键： SELECT * FROM t_order WHERE to_date(create_time, 'yyyy-mm-dd') = '2019-01-01'; 实验性支持 实验性支持特指使用 Federation 执行引擎 分布式序列列名称 spring.shardingsphere.rules.sharding.tables..key-generate-strategy.key- generator-name= # 分布式序列算法名称 spring.shardingsphere.rules.sharding.binding-tables[0]= # 绑定表规则列表 spring.shardingsphere column=order_id spring.shardingsphere.rules.sharding.tables.t_order.key-generate-strategy.key- generator-name=snowflake spring.shardingsphere.rules.sharding.tables.t_order_item.actual-data-nodes=ds-$->