v0.6.40-nightly

What's Changed

Features

• Add bloom filter for single column equivalent expression (#3887) by @junli1026

Improvement

• [metasrv] refactor: clean up meta-store test (#3925) by @drmingdrmer
• [metasrv] refactor: remove unnecessary MetaNode.metrics_rx (#3928) by @drmingdrmer

Others

• Add bloom filter for single column equivalent expression (#3887) by @junli1026
• [metasrv] refactor: clean up meta-store test (#3925) by @drmingdrmer
• [metasrv] refactor: remove unnecessary MetaNode.metrics_rx (#3928) by @drmingdrmer
• Remove useless code for processor framework (#3927) by @zhang2014