Return multiple metrics if multiple matches the search

[ZuperZee]

What would you like to be added:

Return multiple metrics if multiple matches the search.
This is mostly for getMetricValueWithFilters.

Lets say the data returned have these labels.

First:

{
  "a": "nice",
  "b": "great",
  "c": "not cool"
}

Second:

{
  "a": "nice",
  "b": "great",
  "c": "cool"
}

And you don't care what c is. You could then get them with:

{
  "a": "nice",
  "b": "great"
}

Why is this needed: