Reading the symbols in an access plan graph

The access plan graph shows the structure of an access plan as a tree. The nodes of the tree represent:

• Tables, shown as rectangles
• Indexes, shown as diamonds
• Operators, shown as octagons. TQUEUE operators, shown as parallelograms
• Table functions, shown as hexagons.

For operators, the number in brackets to the right of the operator type, is a unique identifier for each node. The number below the operator type, is the cumulative cost.