Caican Cai created CALCITE-6277:
-----------------------------------
Summary: About the processing of +infinity parameters and
-infinity parameters in math function
Key: CALCITE-6277
URL: https://issues.apache.org/jira/browse/CALCITE-6277
Project: Calcite
Issue Type: Improvement
Components: core
Affects Versions: 1.36.0
Reporter: Caican Cai
Fix For: 1.37.0
{code:java}
log10('-Infinity');
log2('-Infinity');
power('Infinity',2){code}
As above, using the + infinity function in some math functions will not report
an error, but mysql and posgtres will not report an error. I think the +
infinity parameter is meaningful in mathematics.
{code:java}
--postgres
postgres=# select power('Infinity', -2);
power
-------
0
(1 row)postgres=# select log('Infinity', 2);
log
-----
0
(1 row)postgres=# select log10('Infinity');
log10
----------
Infinity
(1 row)postgres=# select power('Infinity', 2);
power
----------
Infinity
(1 row)
--mysql
mysql> select log10('+Infinity');
+--------------------+
| log10('+Infinity') |
+--------------------+
| NULL |
+--------------------+
1 row in set, 2 warnings (0.00 sec)mysql> select power('Infinity', 2);
+----------------------+
| power('Infinity', 2) |
+----------------------+
| 0 |
+----------------------+
1 row in set, 1 warning (0.00 sec)mysql> select power('-Infinity', 2);
+-----------------------+
| power('-Infinity', 2) |
+-----------------------+
| 0 |
+-----------------------+
1 row in set, 1 warning (0.00 sec)mysql> select log10('-Infinity');
+--------------------+
| log10('-Infinity') |
+--------------------+
| NULL |
+--------------------+
1 row in set, 2 warnings (0.00 sec)
{code}
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