[CALCITE-6067] Avatica protobuf: casting to FLOAT data type fails

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.17.0
• Component/s: avatica
• Labels: protobuf
• Assignee: Unassigned
• Reporter: Egor Ryashin
• Created: 23/Oct/23 10:47
• Updated: 23/Oct/23 11:43

Description

I have a strange error using Apache Druid avatica protobuf endpoint. I send this query:
 SELECT "user",
cast("added" as float) m3
from "wikipedia"
limit 10
 
and I get this without a stacktrace:
ClassCastException: class java.lang.Long cannot be cast to class java.lang.Float (java.lang.Long and java.lang.Float are in module java.base of loader 'bootstrap')

 
I works with `double` though:
SELECT
cast(1.0 as double) m3
from "wikipedia"
 
The screenshot shows the exception is thrown here: