viirya commented on issue #10688: URL: https://github.com/apache/datafusion/issues/10688#issuecomment-2136086622
When `-128.2::float` is treated as float64, there is some precision difference. ``` > explain select avg(a) from (select -128.2::float a union all select 32768.3 union all select 27.3); +---------------+--------------------------------------------------------+ | plan_type | plan | +---------------+--------------------------------------------------------+ | logical_plan | Aggregate: groupBy=[[]], aggr=[[AVG(a)]] | | | Union | | | Projection: Float64(-128.1999969482422) AS a | | | EmptyRelation | | | Projection: Float64(32768.3) AS a | | | EmptyRelation | | | Projection: Float64(27.3) AS a | | | EmptyRelation | | physical_plan | AggregateExec: mode=Final, gby=[], aggr=[AVG(a)] | | | CoalescePartitionsExec | | | AggregateExec: mode=Partial, gby=[], aggr=[AVG(a)] | | | UnionExec | | | ProjectionExec: expr=[-128.1999969482422 as a] | | | PlaceholderRowExec | | | ProjectionExec: expr=[32768.3 as a] | | | PlaceholderRowExec | | | ProjectionExec: expr=[27.3 as a] | | | PlaceholderRowExec | | | | +---------------+--------------------------------------------------------+ ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
