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Extending an Operator Class

In This Chapter

Using Operator Classes

Secondary-Access Methods

Generic B-Tree Index

Other User-Defined Secondary-Access Methods

Operator Classes

Generic B-Tree Operator Class

R-Tree Index Operator Class

Extending an Existing Operator Class

Extensions of the btree_ops Operator Class

Reasons for Extending btree_ops

Generating a Single Value for a New Data Type

Changing the Sort Order

Creating an Operator Class

Creating a New B-Tree Operator Class

Creating an Absolute-Value Operator Class

Defining an Operator Class for Other Secondary-Access Methods

Dropping an Operator Class

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