Non-matching index scan (IXSCAN)

非匹配索引扫描 (IXSCAN)

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Given a matching index, a single index fetch will pin down the row to be retrieved.

给定一个匹配的索引，通过一个单独的取索引操作就可以得到要检索的行。

youdao

The option can be used in non matching index scans in a screening fashion and as part of index-only access.

该选项以筛选的方式用于非匹配索引扫描，且是仅索引访问的一部分。

youdao

That means I invest almost exclusively in extremely low-cost, market-matching index funds and exchange-traded funds (ETFs).

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While active investment involves an asset manager making investments with the aim of outperforming a benchmark index, passive investment requires an asset manager to replicate the benchmark index by incorporating the constituent assets in similar proportions (weights) and thereby matching the returns of the index.

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