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.