Partitioning rules can affect grouping as well as scheduling decisions. When no partitioning rule is applied, a group is complete when, for example, the maximum size for a group is reached or a large transaction is encountered.
If a partitioning rule determines that two transactions occurred at overlapping times (time rule), have different transaction names (name rule), or are from different users (user rule), the two transactions are not allowed in the same group. Otherwise, normal group-size decisions are applied, based on transaction size, origin, and so forth. See “Small transactions”.
