v0.5.2

Features

• Add new built-in functions, including char_length, char, radians, and replace (#1895 #1896 #1897 @Ivyee17, #1924 @aceforeverd)
• Add the demo of DolphinScheduler task (#1921 @vagetablechicken)
• Support inserting values with a specified database name (#1929 @dl239)
• Improve window computation with UnsafeRowOpt by removing the zipped dataframe (#1882 @tobegit3hub)
• Improve the documents (#1831 @yclchuxue, #1925 @lumianph, #1902 #1923 @vagetablechicken)
• Support GitHub Codespaces (#1922 @nautaa)

Bug Fixes

• DistributeWindowIterator::GetKey() may result in core dump (#1892 @aceforeverd)
• Tablet does not make ttl persistent when updating the ttl of index (#1935 @dl239)
• TaskManager startup fails if LANG=zh_CN.UTF-8 is set (#1912 @vagetablechicken)
• There are duplicate records in PRE_AGG_META_INFO (#1919 @nautaa)
• The OpenMLDB Spark fails to fallback to SparkSQL for unsupported functions (#1908 @tobegit3hub)
• Fixing other minor bugs (#1914 aceforeverd, #1900 @mangoGoForward, #1934 @vagetablechicken)

Code Refactoring

#1899 @auula, #1913 @dl239, #1917 @mangoGoForward, #1803 @SaumyaBhushan, #1870 @Ivyee17, #1886 @frazie