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Posted to issues@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2021/01/13 12:17:00 UTC
[jira] [Closed] (FLINK-20861) Provide an option for serializing
DECIMALs in JSON as plain number instead of scientific notation
[ https://issues.apache.org/jira/browse/FLINK-20861?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jark Wu closed FLINK-20861.
---------------------------
Resolution: Fixed
Fixed in master: 5b9f4db30e5afcf23588f44da767aaa218df1207
> Provide an option for serializing DECIMALs in JSON as plain number instead of scientific notation
> -------------------------------------------------------------------------------------------------
>
> Key: FLINK-20861
> URL: https://issues.apache.org/jira/browse/FLINK-20861
> Project: Flink
> Issue Type: Improvement
> Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table SQL / Ecosystem
> Reporter: Q Kang
> Assignee: Q Kang
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.13.0
>
>
> When using DECIMAL types in Flink SQL along with JSON format, it is quite common to see that some large values are written out as scientific notation. For example:
> Definition: `orderId DECIMAL(20, 0)`
> Input: `\{"orderId":454621864049246170}`
> Output (without transformations): `\{"orderId":4.5462186404924617E+17}`
> However, values in plain numbers are easier to understand and more convenient for the case shown above. So we can provide a boolean option (say `json.use-plain-decimals`?) to make this behavior tunable.
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