make_col¶
Type of operation: Projection
Description¶
Add one or more new columns from the input dataset to the output dataset. See also: ‘extract_regex’.
Usage¶
make_col columnbinding_1, columnbinding_2, ...
Argument |
Type |
Optional |
Repeatable |
Restrictions |
|---|---|---|---|---|
columnbinding |
expression |
no |
yes |
none |
Accelerable¶
make_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¶
make_col message:string(data.payload.message), ok:string(data.payload.ok)
Create the columns ‘message’ and ‘ok’ by coercing various data column object fields to strings.
Aliases¶
colmake(deprecated)