LucienDon opened a new issue #9431:
URL: https://github.com/apache/shardingsphere/issues/9431
使用版本为4.1.1, oracle 一共有60张表,只进行了分表，我发现spring-boot 启动时, sharding-jdbc 会检索
oracle 元数据（metadata），与分表策略进行对比，这一过程非常慢（数据越多，启动越慢）, 所以我想知道如何关闭检索metadata这一过程
我的spring-boot 配置如下
```
# sharding jdbc 配置
spring:
shardingsphere:
datasource:
names: ds0
ds0:
type: com.alibaba.druid.pool.DruidDataSource
url: jdbc:oracle:thin:@xxxx:1521/OSSDB
username: xxx
password: xxx
driver-class-name: oracle.jdbc.OracleDriver
sharding:
tables:
patient:
actual-data-nodes: ds0.PATIENT_$->{0..4}
table-strategy:
standard:
precise-algorithm-class-name:
djx.migratedata.config.strategy.PreciseAlgorithmForPatient
sharding-column: PK
exam:
actual-data-nodes: ds0.EXAM_$->{0..4}
table-strategy:
complex:
algorithm-class-name:
djx.migratedata.config.strategy.ComplexAlgorithmForExam
sharding-columns: HOSPITAL_ID,ACCESS_NUMBER
study:
actual-data-nodes: ds0.STUDY_$->{0..4}
table-strategy:
standard:
precise-algorithm-class-name:
djx.migratedata.config.strategy.PreciseAlgorithmForStudy
sharding-column: STUDY_UID
series:
actual-data-nodes: ds0.SERIES_$->{0..4}
table-strategy:
standard:
precise-algorithm-class-name:
djx.migratedata.config.strategy.PreciseAlgorithmForStudy
sharding-column: STUDY_UID
inst:
actual-data-nodes: ds0.INST_$->{0..9}
table-strategy:
standard:
precise-algorithm-class-name:
djx.migratedata.config.strategy.PreciseAlgorithmForStudy
sharding-column: STUDY_UID
files:
actual-data-nodes: ds0.FILES_$->{0..9}
table-strategy:
standard:
precise-algorithm-class-name:
djx.migratedata.config.strategy.PreciseAlgorithmForStudy
sharding-column: STUDY_UID
props:
check:
table:
metadata:
enabled: false
```
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