v0.9.0-rc1

What's Changed

• Update the next version to 0.9.0-SNAPSHOT by @hanahmily in #81
• Bump up API to support sharding_key by @ButterBright in #82
• Bump API to support version 0.9 by @hanahmily in #83
• Support stage query on topn by @hanahmily in #84

New Contributors

• @ButterBright made their first contribution in #82

Full Changelog: v0.8.0...v0.9.0-rc1