--- Ludvig Strigeus <[EMAIL PROTECTED]> wrote:
> In sqlite3VdbeRecordCompare()
>
> /* Read the serial types for the next element in each key. */
> idx1 += sqlite3GetVarint32(&aKey1[idx1], &serial_type1);f
> if( d1>=nKey1 && sqlite3VdbeSerialTypeLen(serial_type1)>0 ) break;
> idx2 += sqlite3GetVarint32(&aKey2[idx2], &serial_type2);
> if( d2>=nKey2 && sqlite3VdbeSerialTypeLen(serial_type2)>0 ) break;
>
> What is the purpose of the sqlite3VdbeSerialTypeLen(serial_type1)>0 here?
If the last field in the record is an SQL NULL, then d1==nKey1 and
sqlite3VdbeSerialTypeLen() returns zero. In this case the record hasn't
run out of fields, so we don't want to break out of that loop.
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