+ <varname>auto_explain.log_queryids</varname> allows to specify list of
+ query ID. Only plans with listed ID will be logged. When this parameter
+ is empty (default), the query ID is not used for filtering. This doesn't
I would still improve this part a bit, ID is singular at both places
but it should be plural IDs, and there's a double space at "this
parameter".
Other than these I have no more comments, the patch looks good to me.