Pagination - Memory threshold issue.

We have a query as below
rule!WFT_getRequestDetailsBySearchParams(ri!process,ri!subprocess,ri!action,ri!requestor,ri!company,ri!reference,ri!sapRefNo,if(isnull(ri!fromDate),todatetime(date(2010,10,10)),ri!fromDate),if(isnull(ri!toDate),todatetime((today())),ri!toDate+intervalds(23,59,59)),ri!monetaryValue,ri!priority,ri!wftRequestID,ri!salesOffice,ri!requestStatus,ri!pageInfo)))

In the above query how is "ri!pageInfo" working? I could not find any parameters like batch size set for pageInfo. Please help how does it work for the above query.

How does pageInfo decrease the load on Appian? I have referred the below link, but did not understand much, Please help me on this.
forum.appian.com/.../System_Functions.html

OriginalPostID-254399