另一個復原分割區的方式是使用 ALTER TABLE RECOVER PARTITIONS。 如果快取數據表,命令會清除資料表的快取數據,以及參考數據表的所有相依專案。 快取會在下次存取數據表或相依專案時填滿。 ADD 命令會將新的分割區新增至會話目錄,供不屬於任何數據表分割區之基表資料夾中的所有子資料夾使用。 如果沒有指定其他選項...
ALTERTABLEtable_name{ADDPARTITIONclause|DROPPARTITIONclause|PARTITIONSETLOCATIONclause|RENAMEPARTITIONclause|RECOVERPARTITIONSclause} ADDPARTITIONclause Adds one or more partitions to the table. Syntax ADD[IFNOTEXISTS]{PARTITIONclause[LOCATIONpath]}[...] ...
[SPARK-34153][SQL][3.1][3.0] 移除未使用的getRawTable()HiveExternalCatalog.alterPartitions() [SPARK-34130] [SQL]Impove preformace for char varchar padding and length check with StaticInvoke [SPARK-34027] [SQL][3.1] 中的重新整理快取 ALTER TABLE .. RECOVER PARTITIONS [SPARK-34151] [SQL] jav...
(dateDATE,idINT,eventSTRING)USINGCSV LOCATION'dbfs:/log'PARTITIONEDBY(date); >ALTERTABLElogADDPARTITION(date=DATE'2021-09-10'); >ALTERTABLElogDROPPARTITION(date=DATE'2021-09-10');-- Drop all partitions from the named university, independent of the major.>ALTERTABLEstudentDROPPARTITION(...
(age=10); -- After truncate execution, records belonging to partition age=10 are removed > SELECT * FROM Student; name rollno age --- --- --- XYZ 3 12 -- Remove all rows from the table from all partitions > TRUNCATE TABLE Student; > SELECT * FROM Student; name rollno age ---...
(age=10); -- After truncate execution, records belonging to partition age=10 are removed > SELECT * FROM Student; name rollno age --- --- --- XYZ 3 12 -- Remove all rows from the table from all partitions > TRUNCATE TABLE Student; > SELECT * FROM Student; name rollno age ---...
You can now use CLONE and CONVERT TO DELTA with Iceberg tables that have partitions defined on truncated columns of types int, long, and string. Truncated columns of type decimal are not supported. START VERSION is now deprecated for ALTER SHARE. User interface updates Fix: Counter visualization...
Remove the external XML library from the cluster. ... Last updated: August 30th, 2024 by kaushal.vachhani ALTER TABLE (drop partition) error in Unity Catalog external tables For CSV, JSON, ORC, or data formats, use partition metadata logging. ... Last updated: October 15th, 2024 by la...
Support alter table add/drop partition command for DSv2 (SPARK-32512) Support NOT IN subqueries inside nested OR conditions (SPARK-25154) Support REFRESH FUNCTION command (SPARK-31999) Add sameSemantics and sementicHash methods in Dataset (SPARK-30791) Support composed type of case class in UDF ...
Remove the external XML library from the cluster. ... Last updated: August 30th, 2024 by kaushal.vachhani ALTER TABLE (drop partition) error in Unity Catalog external tables For CSV, JSON, ORC, or data formats, use partition metadata logging. ... Last updated: October 15th, 2024 by la...