Table 3.
Query patterns
| No. | Related predicates | PRG (Predicates relationship group) No. |
|---|---|---|
| Q1 | R1, R2, R11, R13, R14, R22, R23 | PRG1 |
| Q2 | R1, R2, R3, R13, R14, R15, R21 | PRG2 |
| Q3 | R3, R6, R8, R13, R16, R19 | PRG3 |
| Q4 | R1, R2, R13, R14, R15, R22 | PRG4 |
| Q5 | R2, R13, R14, R15 | PRG5 |
| Q6 | R13, R21 | PRG6 |
| Q7 | R1, R2, R5, R6, R7, R13, R18, R19, R20 | PRG7 |
| Q8 | R3, R4, R13, R17, R25 | PRG8 |
| Q9 | R8, R12, R13 | PRG9 |