2.4.132 BrtBeginPCDFGDiscrete
The BrtBeginPCDFGDiscrete record specifies the beginning of a collection of BrtPCDIIndex (section 2.4.730) records as defined by the PivotCache Definition (section 2.1.7.38) part ABNF. The collection of BrtPCDIIndex records specifies a mapping from a cache item (section 2.2.5.2.3) in the BrtBeginPCDFAtbl (section 2.4.131) collection of the base field of this grouping field to a cache item in the BrtBeginPCDFGItems (section 2.4.133) collection of the grouping field. The base field and grouping field are specified in section 2.2.5.2.4.
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cItems (4 bytes): An unsigned integer that specifies the number of mapping indexes for this grouping field. This value MUST match the number of BrtPCDIIndex records in the collection and MUST match the number of cache items in the BrtBeginPCDFAtbl collection of the base field of the grouping field.