Are the very freshly written columns to a row in memtables, efficiently updated/overwritten by edited/new column values.
After flushing of memtable, are those(edited + unedited ones) columns stored together on disk (in same blocks!?) as if they were written in one single operation or same time ?? I know if old columns are edited then several copies of same column will be dispersed in different sst tables, what about fresh columns ? Are there any disadvantages to frequently updating fresh columns present in memtable ?
