Piezīmes
Lai piekļūtu šai lapai, ir nepieciešama autorizācija. Varat mēģināt pierakstīties vai mainīt direktorijus.
Lai piekļūtu šai lapai, ir nepieciešama autorizācija. Varat mēģināt mainīt direktorijus.
Returns the position of the first occurrence of substr in str after position start. The given start and return value are 1-based.
For the corresponding Databricks SQL function, see position function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.position(substr=<substr>, str=<str>, start=<start>)
Parameters
| Parameter | Type | Description |
|---|---|---|
substr |
pyspark.sql.Column or str |
A column of string, substring. |
str |
pyspark.sql.Column or str |
A column of string. |
start |
pyspark.sql.Column or str, optional |
A column of string, start position. |
Examples
from pyspark.databricks.sql import functions as dbf
spark.createDataFrame(
[("bar", "foobarbar", 5,)], ["a", "b", "c"]
).select(dbf.position("a", "b", "c")).show()
spark.createDataFrame(
[("bar", "foobarbar", 5,)], ["a", "b", "c"]
).select(dbf.position("a", "b")).show()