XuQianJin-Stars commented on a change in pull request #11186:
[FLINK-16200][sql] Support JSON_EXISTS for blink planner
URL: https://github.com/apache/flink/pull/11186#discussion_r396642098
##########
File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinitions.java
##########
@@ -674,6 +674,14 @@
.outputTypeStrategy(TypeStrategies.MISSING)
.build();
+ // json functions
+ public static final BuiltInFunctionDefinition JSON_EXISTS =
+ new BuiltInFunctionDefinition.Builder()
+ .name("json_exists")
+ .kind(SCALAR)
+ .outputTypeStrategy(TypeStrategies.MISSING)
Review comment:
> It's weird, why not directly specify the outputType? I know that all
function definitions are all defined with `MISSING` strategy, and it make me
more confuse.
The type specified here becomes a cast.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
