MaricoHan commented on issue #21894:
URL:
https://github.com/apache/shardingsphere/issues/21894#issuecomment-1304703930
> Hi @MaricoHan, can you provide your configuration and table init sql?
Hi @strongduanmu,as shown below
```sql
Create Table: CREATE TABLE `t_accounts` (
`id` bigint unsigned NOT NULL AUTO_INCREMENT,
`project_id` bigint unsigned NOT NULL DEFAULT '0' ,
`address` char(42) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL
DEFAULT '',
`updated_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE
CURRENT_TIMESTAMP,
`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY (`id`) USING BTREE,
UNIQUE KEY `uidx_address` (`address`) USING BTREE,
KEY `idx_project_id` (`project_id`) USING BTREE,
KEY `idx_created_at` (`created_at`) USING BTREE,
KEY `idx_updated_at` (`updated_at`) USING BTREE,
) ENGINE=InnoDB AUTO_INCREMENT=355479852 DEFAULT CHARSET=utf8mb4
COLLATE=utf8mb4_general_ci
```
server.yaml
```yaml
props:
max-connections-size-per-query: 1
kernel-executor-size: 16 # Infinite by default.
proxy-frontend-flush-threshold: 128 # The default value is 128.
proxy-hint-enabled: false
sql-show: false
check-table-metadata-enabled: false
# Proxy backend query fetch size. A larger value may increase the memory
usage of ShardingSphere Proxy.
# The default value is -1, which means set the minimum value for
different JDBC drivers.
proxy-backend-query-fetch-size: -1
proxy-frontend-executor-size: 0 # Proxy frontend executor size. The default
value is 0, which means let Netty decide.
# Available options of proxy backend executor suitable: OLAP(default),
OLTP. The OLTP option may reduce time cost of writing packets to client, but it
may increase the latency of SQL execution
# and block other clients if client connections are more than
`proxy-frontend-executor-size`, especially executing slow SQL.
proxy-backend-executor-suitable: OLAP
proxy-frontend-max-connections: 0 # Less than or equal to 0 means no
limitation.
sql-federation-enabled: true
# Available proxy backend driver type: JDBC (default), ExperimentalVertx
proxy-backend-driver-type: JDBC
proxy-mysql-default-version: 8.0.23 # In the absence of schema name, the
default version will be used.
proxy-default-port: 3307 # Proxy default port.
proxy-netty-backlog: 1024 # Proxy netty backlog.
```
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