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Cannot pass arrays to spark.sql() using named parameter markers

runninsavvy
New Contributor II

Hello all,

I am attempting to use named parameter markers as shown in this article: https://docs.databricks.com/en/sql/language-manual/sql-ref-parameter-marker.html#named-parameter-mar...

I can pass strings and numbers in perfectly fine, but the issues arise when I try to pass in arrays. An example:

 

 

 

spark.sql("SELECT 1 IN (1, 2, 3)", args=params).show()

 

 

 

Works just fine, and the function is able to run. However:

 

 

 

spark.sql("SELECT 1 IN :test", args={"test": [1, 2, 3]}).show()

 

 

 

and also 

 

 

 

spark.sql("SELECT 1 IN ARRAY(:test)", args={"test": [1, 2, 3]}).show()

 

 

 

give me vague syntax errors, and even just trying to reference the passed-in array in a basic sense like 

 

 

 

spark.sql("SELECT :test", args={"test": [1, 2, 3]}).show()

 

 

 

gives the error "[INVALID_SQL_ARG] The argument test of 'sql()' is invalid. Consider to replace it by a SQL literal."

 

Is there any way to pass in an array using named parameters to pyspark.sql()? Thanks 

1 ACCEPTED SOLUTION

Accepted Solutions

User16502773013
Databricks Employee
Databricks Employee

Hello @runninsavvy ,

The following code sample can be used in such case

 

val argArray = Array(1, 2, 3)
val argMap = Map("param" -> argArray.mkString(","))

spark.sql("SELECT 1 IN (SELECT explode(split(:param, ',')))",argMap).show()

View solution in original post

2 REPLIES 2

User16502773013
Databricks Employee
Databricks Employee

Hello @runninsavvy ,

The following code sample can be used in such case

 

val argArray = Array(1, 2, 3)
val argMap = Map("param" -> argArray.mkString(","))

spark.sql("SELECT 1 IN (SELECT explode(split(:param, ',')))",argMap).show()

That worked, thanks!

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