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https://issues.apache.org/jira/browse/HIVE-21916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Attila Zsolt Piros updated HIVE-21916:
--------------------------------------
Summary: Avoid overflow as a result of casting to bigint at the "ceil",
"ceiling" and "floor" SQL functions (was: Avoid overflow as a result of
casting to long at the "ceil", "ceiling" and "floor" SQL functions)
> Avoid overflow as a result of casting to bigint at the "ceil", "ceiling" and
> "floor" SQL functions
> --------------------------------------------------------------------------------------------------
>
> Key: HIVE-21916
> URL: https://issues.apache.org/jira/browse/HIVE-21916
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 4.0.0
> Reporter: Attila Zsolt Piros
> Priority: Major
>
> The ceil, ceiling and floor SQL functions return type is long and this leads
> to overflow:
> {code}
> hive> select version(), ceil(1.2345678901234e+200),
> ceiling(1.2345678901234e+200), floor(1.2345678901234e+200);
> OK
> 4.0.0-SNAPSHOT r11f78562ab36333cc1d0a3f6051d9846c9c92132
> 9223372036854775807 9223372036854775807 9223372036854775807
> {code}
>
> Meanwhile at other SQL engines.
> *PostgreSQL:*
> {code}
> postgres=# select version(), ceil(1.2345678901234e+200),
> ceiling(1.2345678901234e+200), floor(1.2345678901234e+200); version | ceil |
> ceiling | floor
> ----------------------------------------------------------------------------------------------------------------------------------++---------------------------------------------------------------------------------------
>
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> ------------------------------------------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------
>
> ----------------------------------------------------------------------------------------
> PostgreSQL 11.3 (Debian 11.3-1.pgdg90+1) on x86_64-pc-linux-gnu, compiled by
> gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, 64-bit |
> 12345678901234000000000000000000000000000000000000000000000000000000000000000000000000
>
> 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> |
> 1234567890123400000000000000000000000000000000000000000000000000000000000000000000000000000000000000
>
> 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> |
> 123456789012340000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
>
> 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> (1 row)
> {code}
> *MySQL:*
>
> {code}
> mysql> select version(), ceil(1.2345678901234e+200),
> ceiling(1.2345678901234e+200), floor(1.2345678901234e+200);
> +-----------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | version() | ceil(1.2345678901234e+200) | ceiling(1.2345678901234e+200) |
> floor(1.2345678901234e+200) |
> +-----------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | 5.7.26 |
> 123456789012340000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> |
> 123456789012340000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> |
> 123456789012340000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> |
> +-----------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> 1 row in set (0.00 sec)
> {code}
> *Presto:*
> {code}
> presto> select ceil(1.2345678901234e+200), ceiling(1.2345678901234e+200),
> floor(1.2345678901234e+200); _col0 | _col1 | _col2
> ---------------------+---------------------+---------------------
> 1.2345678901234E200 | 1.2345678901234E200 | 1.2345678901234E200 (1 row)
> {code}
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