[jira] [Created] (FLINK-18611) Include `m` as time unit expression for MINUTE in SQL

["Q Kang (Jira)" <ji...@apache.org>]

Q Kang created FLINK-18611:
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             Summary: Include `m` as time unit expression for MINUTE in SQL
                 Key: FLINK-18611
                 URL: https://issues.apache.org/jira/browse/FLINK-18611
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / FileSystem
    Affects Versions: 1.11.0
            Reporter: Q Kang


According to the [documentation|[https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/connectors/filesystem.html]] of FileSystem SQL Connector, if we try to create a table with the following parameter:
{code:java}
'sink.partition-commit.delay'='1 m'
{code}
The program will fail with exception messages as below:
{code:java}
java.lang.IllegalArgumentException: Could not parse value '1 m' for key 'sink.partition-commit.delay'.java.lang.IllegalArgumentException: Could not parse value '1 m' for key 'sink.partition-commit.delay'. 
..........
Caused by: java.lang.IllegalArgumentException: Time interval unit label 'm' does not match any of the recognized units: DAYS: (d | day | days), HOURS: (h | hour | hours), MINUTES: (min | minute | minutes), SECONDS: (s | sec | secs | second | seconds), MILLISECONDS: (ms | milli | millis | millisecond | milliseconds), MICROSECONDS: (µs | micro | micros | microsecond | microseconds), NANOSECONDS: (ns | nano | nanos | nanosecond | nanoseconds){code}
In org/apache/flink/util/TimeUtils.java#TimeUnit, the definition of MINUTE seems doesn't match with other units.
{code:java}
DAYS(ChronoUnit.DAYS, singular("d"), plural("day")),
HOURS(ChronoUnit.HOURS, singular("h"), plural("hour")),
MINUTES(ChronoUnit.MINUTES, singular("min"), plural("minute")),
SECONDS(ChronoUnit.SECONDS, singular("s"), plural("sec"), plural("second")),
...{code}
That is, `m` is not a valid expression for MINUTE, but `d`/`h`/`s` etc. are all valid expressions regarding to DAY/HOUR/SECOND, which might be a little confusing to users.

 



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