A table contains $4$ blocks, with each block containing $3$ rows. Each row has a flight, airline, time, airport, and aircraft. Rows are sorted on flight.

A multi$-$level index has $2$ levels, a top and bottom level. Each index block can hold up to $4$ entries. The top level has $1$ block with $4$ entries, and the bottom level has $4$ blocks.

The first $2$ bottom level blocks each have $4$ entries, and the last $2$ bottom level blocks each have $2$ entries.

The index entries and related table rows are:

Top level entry ABQ points to a bottom level block containing entries ABQ, ALF, BLR$,$ and DTW$.$

Bottom level entry ABQ points to Row $2$: $251,$ Lufthansa, $10$:$45,$ ABQ, Boeing $737.$

Bottom level entry ALF points to Row $5$: $496,$ Delta Air Lines, $5$:$30,$ ALF, MD $11.$

Bottom level entry BLR points to Row $6$: $588,$ British Airways, $4$:$30,$ BLR$,$ Boeing $747.$

Bottom level entry DTW points to Row $4$: $390,$ Aer Lingus, $4$:$05,$ DTW$,$ Boeing $777.$

Top level entry HAV points to a bottom level block containing entries HAV, JNB$,$ MAA, and MAD.

Bottom level entry HAV points to Row $1$: $101,$ British Airways, $18$:$15,$ HAV, MD $11.$

Bottom level entry JNB points to Row $9$: $822,$ Air China, $2$:$40,$ JNB$,$ Airbus $321.$

Bottom level entry MAA points to Row $3$: $323,$ Air India, $2$:$00,$ MAA, Airbus $321.$

Bottom level entry MAD points to Row $8$: $775,$ Aer Lingus, $16$:$25,$ MAD, Boeing $787.$

Top level entry ONT points to a bottom level block containing entries ONT and QRO.

Bottom level entry ONT points to Row $12$: $1161,$ American Airlines, $6$:$00,$ ONT, MD $11.$

Bottom level entry QRO points to Row $7$: $650,$ Southwest Airlines, $4$:$30,$ QRO, Airbus A$320.$

Top level entry SVQ points to a bottom level block containing entries SVQ and VAA.

Bottom level entry SVQ points to Row $11$: $1078,$ British Airways, $12$:$45,$ SVQ$,$ MD$-90.$

Bottom level entry VAA points to Row $10$: $973,$ Aer Lingus, $16$:$50,$ VAA, Boeing $777.$

The table is sorted on Flight.

The index on Airport is dense.

Check any blocks that split when the following query executes:INSERT INTO FlightTable

VALUES $(219,$ 'Southwest Airlines', $\text{'}9$:$20\text{'},$ 'POA', 'Boeing $787\text{'})$