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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2020/09/14 06:52:01 UTC
[GitHub] [shardingsphere] chana71 opened a new issue #7437: unconfigured table can not query with schema name because of missing rewrite
chana71 opened a new issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437
## Question
I wish to not configure every no sharding table's actual nodes to ds0. At version 4.1 there is one prop named `defaultDataSourceName`, after configuring it, if I query the table with its schema name `select * from schema.table` it will route to ds0 but not rewrite to ignore schema name and because of DB sharding, we actually have mapped schema to `schema{0...3}`.
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[GitHub] [shardingsphere] chana71 commented on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
chana71 commented on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-691901414
@menghaoranss
Logic SQL: select count(*) from cust.SQL_BIZ_HIS
Actual SQL: ds0 ::: select count(*) from cust.SQL_BIZ_HIS
SQL_BIZ_HIS is unconfigured
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[GitHub] [shardingsphere] kimmking commented on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
kimmking commented on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-692001052
Just remove schema prefix for unconfigured tables.
In recent version of ShardingSphere, if we config some real datasources in a logic schema, then only use logic names for sharding tables, and real names for unconfigured tables. The original mysql schema does not exist for users.
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[GitHub] [shardingsphere] chana71 commented on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
chana71 commented on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-691876569
@menghaoranss Now I am testing on the master version. Please check.
```
schemaName: cust
dataSourceCommon:
...
dataSources:
ds0:
url: jdbc:mysql://192.168.1.175:3306/cust0?useSSL=false
ds1:
url: jdbc:mysql://192.168.1.175:3306/cust1?useSSL=false
ds2:
url: jdbc:mysql://192.168.1.186:3306/cust2?useSSL=false
ds3:
url: jdbc:mysql://192.168.1.186:3306/cust3?useSSL=false
rules:
- !SHARDING
tables:
sched_job_extend:
actualDataNodes: ds${0..3}.sched_job_extend
databaseStrategy:
standard:
shardingAlgorithmName: database_mod
shardingColumn: dbid
defaultDatabaseStrategy:
none:
shardingAlgorithms:
database_mod:
type: MOD
props:
sharding.count: 4
```
Thx
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[GitHub] [shardingsphere] chana71 commented on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
chana71 commented on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-691880490
@menghaoranss This is 4.1 version configuration. We have some table sharding across ds0-4 and others only exist at ds0
```
defaultDataSourceName: ds0
tables:
t_order:
actualDataNodes: ds${0..3}.t_order
databaseStrategy:
inline:
algorithmExpression: ds${id% 4}
shardingColumn: id
logicTable: t_order
```
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[GitHub] [shardingsphere] chana71 edited a comment on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
chana71 edited a comment on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-691901414
@menghaoranss
Logic SQL: select count(*) from cust.SQL_BIZ_HIS
Actual SQL: ds0 ::: select count(*) from cust.SQL_BIZ_HIS
SQL_BIZ_HIS is unconfigured
Thanks for your feedback, this is a Bug, just similer with #7342 , It's being solved now，you can pay attention.
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[GitHub] [shardingsphere] menghaoranss commented on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
menghaoranss commented on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-691891105
> @menghaoranss This is 4.1 version configuration. We have some table sharding across ds0-4 and others only exist at ds0
>
> ```
> defaultDataSourceName: ds0
> tables:
>
> t_order:
> actualDataNodes: ds${0..3}.t_order
> databaseStrategy:
> inline:
> algorithmExpression: ds${id% 4}
> shardingColumn: id
> logicTable: t_order
> ```
what's your SQL and the actual SQL in the log?
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[GitHub] [shardingsphere] menghaoranss commented on issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
menghaoranss commented on issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437#issuecomment-691869450
@chana71 Please provide your configuration.
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[GitHub] [shardingsphere] kimmking closed issue #7437: unconfigured table can not query with schema name because of missing rewrite
Posted by GitBox <gi...@apache.org>.
kimmking closed issue #7437:
URL: https://github.com/apache/shardingsphere/issues/7437
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