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https://issues.apache.org/jira/browse/IMPALA-12918?focusedWorklogId=999596&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-999596
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ASF GitHub Bot logged work on IMPALA-12918:
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Author: ASF GitHub Bot
Created on: 12/Jan/26 13:00
Start Date: 12/Jan/26 13:00
Worklog Time Spent: 10m
Work Description: papno2 commented on PR #84:
URL: https://github.com/apache/impala/pull/84#issuecomment-3738442075
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Issue Time Tracking
-------------------
Worklog Id: (was: 999596)
Remaining Estimate: 335h 50m (was: 336h)
Time Spent: 336h 20m (was: 336h 10m)
> Do not allow non-numeric values in Hive table stats during an alter table
> -------------------------------------------------------------------------
>
> Key: IMPALA-12918
> URL: https://issues.apache.org/jira/browse/IMPALA-12918
> Project: IMPALA
> Issue Type: Bug
> Components: Catalog
> Affects Versions: Impala 4.0.0
> Reporter: Miklos Szurap
> Assignee: Kunal Siyag
> Priority: Major
> Labels: alter, alter-table, catalog-2024, newbie, ramp-up,
> stats, validation
> Time Spent: 336h 20m
> Remaining Estimate: 335h 50m
>
> 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".
> Impala currently allows these to be set to non-numeric values (including
> empty string).
> From certain applications (like from Spark) we get quite obscure
> "NumberFormatException" errors while trying to access such broken tables.
> (see SPARK-47444)
> Impala should also validate "alter table" statements and not allow
> non-numeric values in the "totalSize", "numRows", "rawDataSize" table
> properties.
> For example a query which may break the table (after it can't be read from
> Spark):
> {code}
> [impalacoordinator:21000] default> alter table t1p set
> tblproperties('numRows'='', 'STATS_GENERATED_VIA_STATS_TASK'='true');
> {code}
> Note: beeline/Hive validates alter table statements with the "numRows" and
> "rawDataSize", the "totalSize" still needs validation there too.
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