Hello,

Currently, annotate only allows for matching additional fields with the '~' operator for the ID and POS columns. I was wondering if it was possible to allow for matching on additional INFO fields? As an example, I have an annotation that is transcript-specific. Thus a single variant sometimes has two scores, one for the 1st overlapping transcript, the second (or more) for the nth transcript (tsv format):

CHROM POS REF ALT SCORE ENST
chr1 10 A T 0.1 ENST1
chr1 10 A T 0.4 ENST2

and I have a variant that is annotated to intersect the 1st transcript (vcf format):

#CHROM POS ID REF ALT FILTER INFO
chr1 10 . A T . PASS ENST=ENST1

Thus, when running a command like (note the '~'):

bcftools annotate -o annotated.vcf -a score.tsv.gz -c 'CHROM,POS,REF,ALT,SCORE,~ENST' input.vcf

I would expect the annotation to be:

chr1 10 . A T . PASS ENST=ENST1;SCORE=0.1

I hope this makes sense!