I have been testing q and I've found something that could be an issue.

Issue
When I'm doing something like round(avg(c3),3) when querying, is rounding this 32655,5265 to this 32655,526 instead of expected result: 32655,527.

I think that could be an issue, or should be configurable.

Cheers.

Hello.
I've come across what (to me) seems to be a problem with the FILENAME and FILENUM variables.

# mlr --version
Miller v5.6.2

# cat /tmp/csv1
A,B,C
_2GB,255,2
_4GB,120,4
_6GB,50,6
_10GB,10,10

# cat /tmp/csv2
FIRST,SECOND,THIRD,FOURTH
1,2,3,4
5,6,7,8
9,10,11,12
13,14,15,16

# mlr --icsv cat then put 'print FILENAME'   /tmp/csv1 /tmp/csv2
/tmp/csv1
A=_2GB,B=255,C=2
/

I'm using tsv-utils from the arch linux aur, trying to format some word frequency data from the new general services list dataset. tsv-utils makes at least two errors that I'm able to see when I'm running this commandline:

tsv-select -f 1,7 NGSL+1.01+with+SFI.tsv | tsv-pretty | less

adding -s 5 to tsv-pretty works around this problem. The tsv file was converted from the file NGSL+1.01+with

Desired Behaviour

Display a warning if the Guess Column Properties will overwrite existing field type, format or constraint values

Acceptance test