sqliteBtreeKey
rc = sqliteBtreeKey(pCur, 0, n, zBuf);
sqliteBtreeKey(pCrsr, nKey - 4, 4, (char*)&v);
sqliteBtreeKey(pC->pCursor, 0, sizeof(v), (void*)&v);
sqliteBtreeKey(pCrsr, 0, n, pTos->z);
sqliteBtreeKey(pCrsr, idxWidth*p2, idxWidth*2, (char*)aHdr);
sqliteBtreeKey(pCrsr, offset, amt, pTos->z);
sqliteBtreeKey(pC->pCursor, 0, sizeof(u32), (char*)&v);
sqliteBtreeKey(pCrsr, 0, amt, z);
sqliteBtreeKey(pCrsr, sz - sizeof(u32), sizeof(u32), (char*)&v);