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https://issues.apache.org/jira/browse/FLINK-13651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17011310#comment-17011310
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Jingsong Lee commented on FLINK-13651:
--------------------------------------
This is a deprecated java Expression api in "PlannerExpressionParserImpl". I
think it is OK to not refactor it or fix it.
New java Expression api should be in
[https://cwiki.apache.org/confluence/display/FLINK/FLIP-55%3A+Introduction+of+a+Table+API+Java+Expression+DSL]
So I think this can not be in 1.10. CC: [~twalthr]
> Blink planner should parse char(n)/varchar(n)/decimal(p, s) inside a string
> to corresponding datatype
> -----------------------------------------------------------------------------------------------------
>
> Key: FLINK-13651
> URL: https://issues.apache.org/jira/browse/FLINK-13651
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.9.0, 1.10.0
> Reporter: Zhenghua Gao
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> could reproduce in ScalarFunctionsTest:
> `testAllApis(
> 'f31.cast(DataTypes.DECIMAL(38, 18)).truncate(2),
> "f31.cast(DECIMAL(38, 18)).truncate(2)",
> "truncate(cast(f31 as decimal(38, 18)), 2)",
> "-0.12")`
>
> A possible reason is LookupCallResolver treat decimal(38, 18) as a function
> call.
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