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Caican Cai commented on CALCITE-6237: ------------------------------------- I don't understand many aspects of calcite, and I have to admit that I am a little anxious. I will learn this knowledge and fix this jira. I am sorry for causing trouble to all committers in the process. Thank you for your guidance > Using fractions in LOG function does not return correct results > --------------------------------------------------------------- > > Key: CALCITE-6237 > URL: https://issues.apache.org/jira/browse/CALCITE-6237 > Project: Calcite > Issue Type: Bug > Components: core > Affects Versions: 1.36.0 > Reporter: Caican Cai > Priority: Major > Fix For: 1.37.0 > > > {code:java} > mysql> SELECT LOG10(2/3) AS result; > +---------------------+ > | result | > +---------------------+ > | -0.1760912594899757 | > +---------------------+ > 1 row in set (0.00 sec) > mysql> SELECT LOG2(0) AS result; > +--------+ > | result | > +--------+ > | NULL | > +--------+ > 1 row in set, 1 warning (0.01 sec) > mysql> SELECT LOG2(2/3) AS result; > +---------------------+ > | result | > +---------------------+ > | -0.5849625021638512 | > +---------------------+ > 1 row in set (0.00 sec) > {code} > When using Calcite's Log2 and Log10 functions, if the parameter is a > fraction, the integer digits will be retained by default. I think this is > wrong. Several decimal places (such as tens) should be retained by default. -- This message was sent by Atlassian Jira (v8.20.10#820010)