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https://issues.apache.org/jira/browse/HIVE-28124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Miklos Szurap reassigned HIVE-28124:
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Assignee: Miklos Szurap
> Do not allow non-numeric values in Hive table stats during an alter table
> -------------------------------------------------------------------------
>
> Key: HIVE-28124
> URL: https://issues.apache.org/jira/browse/HIVE-28124
> Project: Hive
> Issue Type: Bug
> Components: Statistics
> Affects Versions: 3.1.3
> Reporter: Miklos Szurap
> Assignee: Miklos Szurap
> Priority: Major
> Labels: alter, alter-table, statistics, stats, validation
>
> Hive table properties are string in their nature, however some of them have
> special meaning and should have numeric values, like the "totalSize",
> "numRows", "rawDataSize".
> During an "ALTER TABLE" statement Hive currently validates only the "numRows"
> and "rawDataSize" table properties, the other table properties can be set to
> non-numeric values (including an empty string).
> From certain applications (like from Spark) we get quite obscure
> "NumberFormatException" errors while trying to access such broken tables.
> (see SPARK-47444)
> For example such a query (after which that table can't be read from Spark)::
> {code}
> 0: jdbc:hive2://hs2host> alter table t1p set tblproperties('totalSize'='',
> 'STATS_GENERATED_VIA_STATS_TASK'='true');
> {code}
> In the AbstractAlterTablePropertiesAnalyzer.java besides the "numRows" and
> "rawDataSize" we should validate the other table stats related properties
> too, currently the missing ones are:
> numFiles, numPartitions, totalSize, runTimeNumRows, numFilesErasureCoded.
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