Uid filter

How all datas in the field ‘value as uid’ without specifying its fields under it.how it is possible

here is my query
records(func: eq(values, 0x45)) @filter(type(RegionRecord)) {
values {

I am not sure I understand the question, but if you would like to see the actual UIDs that match, you can return the special property/field “uid” and the uid() test function.

uidIfRegionRec(func: uid(0x45)) @filter(type(RegionRecord)) {

when using variables you can omit the field selection list:

rruids as var(func: uid(0x45)) @filter(type(RegionRecord))
… use the rruids var in other functions such as func:uid(rruids) …