count
fun count(key: <Error class: unknown class>? = null, field: <Error class: unknown class>): <Error class: unknown class>(source)
⚠️ Deprecated ⚠️
This is deprecated since version 2.26.
Rarely used API
---Returns the number of tuples in a #GRelation that have the given value in the given field.
Return
the number of matches.
Parameters
key
the value to compare with.
field
the field of each record to match.