v0.5.1

Features

• Support the new OpenMLDB Kafka connector (#1771 @vagetablechicken)
• Support very long SQLs in TaskManager (#1833 @tobegit3hub)
• Support window union correctly in the cluster mode (#1855 #1856 @aceforeverd @dl239)
• Support count_where(*, condition) in the storage engine (#1841 @nautaa)
• Add a new micro-benchmark tool for performance evaluation (#1800 @dl239)

Bug Fixes

• Auto creating table throws error when a new ttl is greater than the current ttl. (#1737 @keyu813)
• Offline tasks crash when enabling UnsafeRowOpt for continuous windows. (#1773 @tobegit3hub)
• The aggregator is not reset if the table is empty. (#1784 @zhanghaohit)
• The order for window union rows and original rows with the same order key is undefined. (#1802 @aceforeverd)
• Queries with pre-aggregate enabled may crash under certain tests. (#1838 zhanghaohit)
• Ending space in CLI may cause program crash. (#1820 @aceforeverd)
• When creating an engine with empty databases, it cannot execute the command of USE database in the Python SDK. (#1854 @vagetablechicken)
• When using the soft copy for csv files, it cannot read offline path with options. (#1872 @vagetablechicken)

Code Refactoring

#1766 @hiyoyolumi; #1777 @jmoldyvan; #1779 @SohamRatnaparkhi; #1768 @SaumyaBhushan; #1795 @vighnesh-kadam; #1806 @Mount-Blanc; #1978 @wangxinyu666666; #1781 @SaumyaBhushan; #1786 @xuduling; #1810 @IZUMI-Zu; #1824 @bxiiiiii; #1843 @1korenn; #1851 @zhouxh19; #1862 @Ivyee17; #1867, #1869, #1873, #1884 @mangoGoForward; #1863 @Ivyee17; #1815 @jmoldyvan; #1857 @frazie; #1878 @PrajwalBorkar