Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

support hint in sharding-proxy

See original GitHub issue

hint was supported by sharding-jdbc by thread-local. but it can’t work in sharding-proxy. we can extend sctl to support it in sharding-proxy. it looks like that

sctl:hint set MASTER_ONLY=true
sctl:hint set DatabaseShardingValue=xx. ## xx: sharding value
sctl:hint addTableShardingValue xx=yy ## xx: logicTableName，yy:sharding value
sctl:hint addDatabaseShardingValue xx=yy. ## xx: logicTableName，yy:sharding value

sctl:hint command can be sent to proxy through JDBC, e.g. connection.createStatement("stcl:hint set xxxx"), after proxy received the request, it should be dispatched to HintSCTLCommandHander like ShardingCTLSetBackendHandler, then stored the hint content in current channel(BackendConnection)

Issue Analytics

State:
Created 4 years ago
Comments:10 (10 by maintainers)

Top GitHub Comments

1reaction

cherrylzhaocommented, Sep 18, 2019

command looks like this, sctl:hint show status

0reactions

cherrylzhaocommented, Sep 19, 2019

close this issue, will discuss query context function in #3057

Top Results From Across the Web

Manual - Apache ShardingSphere

Sharding -Proxy does not support hint by default, to support it, set the props property proxy.hint.enabled to true in conf/server.yaml.In Sharding-Proxy.

How to Use ShardingSphere-Proxy in Real Scenarios—Your ...

This post details how to use ShardingSphere-Proxy, its strengths, its differences with Shardingsphere-JDBC and provides you with 3 examples based on real ...

ShardingSphere 5.2.1 is released — Here are the highlights

The new release enhances the SQL HINT capability and supports data-sharding mandatory routing. Users only need to add annotations in the ...

Database Hints - Oracle to Aurora MySQL Migration Playbook

Aurora MySQL supports two types of hints: optimizer hints and index hints. Index Hints. The USE INDEX hint limits the optimizer's choice to...

RELEASE-NOTES.md · tuohai666/incubator-shardingsphere ... - Gitee

Support hint in Sharding -Proxy. Finish parsing DAL syntax for MySQL. Make configuration of orchestration compatible between Sharding-JDBC and Sharding-Proxy.