v0.6.56-nightly

What's Changed

Features

• Implment backtrack for parser and add a human-friendly pretty printer for errors (#4045) by @andylokandy
• ISSUE #3206: Support SHOW ENGINES Statement (#4050) by @SGZW

Improvement

• STORAGE: Refine the storage engine descriptor (#4061) by @bohutang
• TENANT-4054: Add tenant empty check (#4057) by @bohutang
• Add created_on to DatabaseMeta (#4056) by @LiuYuHui

Others

• STORAGE: Refine the storage engine descriptor (#4061) by @bohutang
• ISSUE #3206: Support SHOW ENGINES Statement (#4050) by @SGZW
• Add created_on to DatabaseMeta (#4056) by @LiuYuHui