[FLINK-10263] User-defined function with LITERAL paramters yields CompileException - ASF JIRA

Attach files

Attach Screenshot

Voters

Watch issue

Watchers

Create sub-task

Link

Clone

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: 1.6.1, 1.7.0
Fix Version/s: 1.6.2, 1.7.0
Component/s: Table SQL / API
Labels:
- pull-request-available

Description

When using a user-defined scalar function only with literal parameters, a CompileException is thrown. For example

SELECT myFunc(CAST(40.750444 AS FLOAT), CAST(-73.993475 AS FLOAT))

public class MyFunc extends ScalarFunction {

	public int eval(float lon, float lat) {
		// do something
	}
}

results in

[ERROR] Could not execute SQL statement. Reason:
org.codehaus.commons.compiler.CompileException: Line 5, Column 10: Cannot determine simple type name "com"

The problem is probably caused by the expression reducer because it disappears if a regular attribute is added to a parameter expression.