drop_col¶
Type of operation: Projection
Description¶
Exclude one or more columns from the input dataset to the output dataset.
Primary key and time columns may not be dropped.
See also pick_col.
Usage¶
drop_col columnname_1, columnname_2, ...
Argument |
Type |
Optional |
Repeatable |
Restrictions |
|---|---|---|---|---|
columnname |
storable |
no |
yes |
column |
Accelerable¶
drop_col is always accelerable if the input is accelerable. A dataset that only uses accelerable verbs can be accelerated, making queries on the dataset respond faster.
Examples¶
drop_col debug_info, status_code
Exclude the columns ‘debug_info’ and ‘status_code’ from the data passed downstream.
Aliases¶
coldrop(deprecated)