D. Features Introduced in Previous Versions : New Features in VectorH 4.1
 
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New Features in VectorH 4.1
The following new features are available in VectorH 4.1:
Support for INSERT, DELETE, UPDATE, MERGE, ADD COLUMN, and DROP COLUMN
Full and incremental backup and restore through the ckpdb and rollforwarddb operations
Master node failover
YARN support
Statements MODIFY…TO COMBINE and MODIFY…TO RECONSTRUCT replace the COMBINE and REWRITE forms of the CALL VECTORWISE statement, which are deprecated.
CALL VECTORWISE is now a privileged operation that requires the user to have DB_ADMIN database privileges. This feature has upgrade considerations.
SET INSERTMODE statement lets you control whether inserts go through the PDT (memory) or directly to disk.
CREATE STATISTICS and DROP STATISTICS statements. Also, new options on COPY FROM and vwload that create statistics on the table just loaded.
INTERSECT and EXCEPT set operators for use in the same context as UNION
CREATE TABLE IF NOT EXISTS statement creates the table if it does not exist and returns without error if the table exists.
Configuration option [engine] enable_reuse_disk_spilling=true enables spilling to disk for reused query plan parts.