Kengo Seki created SEDONA-137:
---------------------------------
Summary: Fix ST_Buffer for Flink to work
Key: SEDONA-137
URL: https://issues.apache.org/jira/browse/SEDONA-137
Project: Apache Sedona
Issue Type: Bug
Reporter: Kengo Seki
I tried to use the {{ST_Buffer}} function on Flink, but came across the
following error.
{code}
org.apache.flink.client.program.ProgramInvocationException: The main method
caused an error: SQL validation failed. An error occurred in the type inference
logic of function 'ST_Buffer'.
...
Caused by: org.apache.flink.table.api.ValidationException: SQL validation
failed. An error occurred in the type inference logic of function 'ST_Buffer'.
...
Caused by: org.apache.flink.table.api.ValidationException: An error occurred in
the type inference logic of function 'ST_Buffer'.
...
Caused by: org.apache.flink.table.api.ValidationException: Could not extract a
valid type inference for function class
'org.apache.sedona.flink.expressions.Functions$ST_Buffer'. Please check for
implementation mistakes and/or provide a corresponding hint.
...
Caused by: org.apache.flink.table.api.ValidationException: Error in extracting
a signature to output mapping.
...
Caused by: org.apache.flink.table.api.ValidationException: Unable to extract a
type inference from method:
...
Caused by: org.apache.flink.table.api.ValidationException: Could not extract a
data type from 'class java.lang.Object' in parameter 0 of method 'eval' in
class 'org.apache.sedona.flink.expressions.Functions$ST_Buffer'. Please pass
the required data type manually or allow RAW types.
{code}
It seems to be caused by the lack of {{@DataTypeHint}} for the first parameter
of {{ST_Buffer.eval}}.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
