2.4.816 BrtSXDI15
The BrtSXDI15 record specifies additional information about a data item (section 2.2.5.3.7.5.1).
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FRTHeader |
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A |
reserved |
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FRTHeader (4 bytes): An FRTBlank structure (section 2.5.55) that specifies the future record (section 2.1.6) information for this record.
A - fCountDistinct (1 bit): A bit that specifies that the aggregation function which applies to this data item (section 2.2.5.3.7.5.1) is the count of unique values. If this value is true, the iiftab field of the preceding BrtBeginSXDI (section 2.4.243) record is ignored.
reserved (7 bits): This value MUST be 0, and MUST be ignored.