@Prashanth24 wrote:1) Suppose if we receive incremental data with some modifications to existing record and in this case whether existing clustered ZCubes will be re-organized again? In this case many existing organized clustered Zcubes will be processed again to maintain the data locality?
Technically, due to Delta Lake's history, on file-level you don't update existing files, you always create new ones.
2) Once the table is created with Liquid clustering then how we check which columns are used for LC?
Yes, look into the table structure, e.g. by using DESCRIBE TABLE.
3) So Z-ordering syntax cannot be used in Create or Alter table query (how we do in case of LC) and needs to execute only with Optimize command?
Exactly.
2) Was Liquid clustering released in Delta Lake 4.0?
No, the first preview was released in 3.1, in 3.2 it became final.
