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Designing DataBlade Modules

In This Chapter
Data Model
Data Type Design
Object Accessibility
Handling Large Objects
Query Language Interface
SQL Query Structure
The Target List
The Qualification
Query Processing
Predicate Evaluation
Expensive Routines
User-Defined Statistics
Aggregates
Sorting Results
Grouping
Casts
Access Path Selection
Unordered Row Processing
Secondary Access Methods
Planning for Transaction Semantics
Interoperability
Orthogonality
Simple, Clean Interfaces
Naming Routines
Taking Advantage of Polymorphism
Limiting the Number of Arguments
Avoiding Modal Routines
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