2.4.284 BrtBeginTimelineCachePivotCacheIDs
The BrtBeginTimelineCachePivotCacheIDs record specifies the beginning of a collection of PivotCache identifier records as defined by the Workbook (section 2.1.7.61) part ABNF. The collection of records specifies the PivotCaches used by Timeline caches (section 2.2.15.1) with OLAP source data (section 2.2.5.2.1).