try_add

Returns the sum of leftand right and the result is null on overflow. The acceptable input types are the same with the + operator. Supports Spark Connect.

For the corresponding Databricks SQL function, see try_add function.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.try_add(left=<left>, right=<right>)

Parameters

Parameter	Type	Description
left	pyspark.sql.Column or column name	The left side value
right	pyspark.sql.Column or column name	The right side value

Examples

from pyspark.databricks.sql import functions as dbf
spark.createDataFrame(
    [(1982, 15), (1990, 2)], ["birth", "age"]
).select("*", dbf.try_add("birth", "age")).show()

+-----+---+-------------------+
|birth|age|try_add(birth, age)|
+-----+---+-------------------+
| 1982| 15|               1997|
| 1990|  2|               1992|
+-----+---+-------------------+

from pyspark.databricks.sql import functions as dbf
spark.sql("SELECT * FROM VALUES (DATE('2015-09-30')) AS TAB(date)").select("*", dbf.try_add("date", dbf.lit(1))).show()

+----------+----------------+
|      date|try_add(date, 1)|
+----------+----------------+
|2015-09-30|      2015-10-01|
+----------+----------------+