Index Syntax and Keywords

This reference describes the syntax and keywords that apply to an index, which you can define in persistent classes.

• Syntax of Indexes in Class Definitions – Describes the structure of an index definition.
• Abstract – Specifies that an index is abstract.
• Condition – Defines a conditional index and specifies the condition that must be met for a record to be included in the index.
• CoshardWith – Adds an index that specifies the name of the class with which this class is cosharded.
• Data – Specifies a list of properties whose values are to be stored within this index.
• Extent – Defines an extent index.
• IdKey – Specifies whether this index defines the Object Identity values for the table.
• Internal – Specifies whether this index definition is internal (not displayed in the class documentation).
• PrimaryKey – Specifies whether this index defines the primary key for the table.
• ShardKey – Defines an index that specifies the shard key for this class.
• SqlName – Specifies an SQL alias for the index.
• Type – Specifies the type of index.
• Unique – Specifies whether the index should enforce uniqueness.