Provided by: postgresql-doc-12_12.2-4_all
dblink_is_busy - checks if connection is busy with an async query
dblink_is_busy(text connname) returns int
dblink_is_busy tests whether an async query is in progress.
connname Name of the connection to check.
Returns 1 if connection is busy, 0 if it is not busy. If this function returns 0, it is guaranteed that dblink_get_result will not block.