v0.8.0

Features

• Add a new synchronization tool to automatically synchronize data from online storage to offline storage (#3256 @vagetablechicken)
• Support the new built-in functions var_samp, var_pop, entropy, earth_distance, nth_value_where and add_months (#3046 #3193 @aceforeverd)
• Support batch read for openmldb-spark-connector (#3070 @tobegit3hub)
• [Alpha] Support Kubernetes as a TaskManager backend for the offline engine (#3147 #3157 #3185 @tobegit3hub)
• Support LAST JOIN over WHERE clause (#3134 @aceforeverd)
• Support LAST JOIN in WINDOW UNION clause (#3205 @aceforeverd)
• Supports a decimal place as the second parameter in the function round (#3221 @aceforeverd)
• Support Amazon S3 as an offline data source (#3229 #3261 @tobegit3hub)
• Add the new option SKIP_INDEX_CHECK to skip index checking when deploying SQLs (#3241 @dl239)
• Support symbolic paths for offline table (#3235 @tobegit3hub)
• Improve the documents (#3104 #2993 @selenachenjingxin, #3113 #3118 #3239 @tobegit3hub, #3150 #3184 #3237 #3255 @aceforeverd, #3160 #3195 #3197 #3223 @lumianph, #3192 #3215 @haseeb-xd, #3201 #3220 #3232 #3236 #3254 @vagetablechicken, #3213 @alexab612, #3189 #3199 @TanZiYen)
• Other minor features (#3115 #3143 #3182 @tobegit3hub, #2818 #3123 @aceforeverd, #3128 #3127 @dl239)

Bug Fixes

• There is curator conflict problem when executing offline SQLs under certain circumstances. (#3090 @tobegit3hub)
• CREATE TABLE ... LIKE HIVE ... statement execution fails if there is no database in a table name. (#3063 @tobegit3hub)
• The CLI shows success even though CREATE TABLE ... LIKE ... execution fails. (#3080 @tobegit3hub)
• SELECT ... INTO ... statement execution fails in the offline mode if there is no source table. (#3116 @tobegit3hub)
• Compilation fails when SELECT * over two LAST JOIN. (#3117 @aceforeverd)
• The syncing job thread will enter an infinite loop if querying JOB_INFO fails. (#3169 @vagetablechicken)
• SQLs deployment fails if there are more than one conditions on a JOIN statement. (#3196 @vagetablechicken)
• Registered tables cannot be fetched when enabling SparkSQL for the offline engine (#3057 @tobegit3hub)
• Other minor bug fixes (#3097 #3095 @dl239, #3109 #3141 #3162 #3234 @aceforeverd, #3096 #3112 @tobegit3hub, #3231 #3251 @vagetablechicken)

Code Refactoring

#3188 @tobegit3hub