Pastaba.
Prieigai prie šio puslapio reikalingas įgaliojimas. Galite bandyti prisijungti arba pakeisti katalogus.
Prieigai prie šio puslapio reikalingas įgaliojimas. Galite bandyti pakeisti katalogus.
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()