| substr {SparkR} | R Documentation | 
An expression that returns a substring.
## S4 method for signature 'Column' substr(x, start, stop)
| x | a Column. | 
| start | starting position. | 
| stop | ending position. | 
substr since 1.4.0
Other colum_func: alias,
between, cast,
endsWith, otherwise,
over, startsWith