Partial index

In databases, a partial index, also known as filtered index is an index which has some condition applied to it so that it includes a subset of rows in the table.

This allows the index to remain small, even though the table may be rather large, and have extreme selectivity.

单词	Partial index
释义	Partial index 英语百科 Partial index In databases, a partial index, also known as filtered index is an index which has some condition applied to it so that it includes a subset of rows in the table. This allows the index to remain small, even though the table may be rather large, and have extreme selectivity.
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