index matching

index matching is usually trivial in the relational case.

在关系查询中，索引匹配通常是微不足道的。

liquid velocity measurements in complex geometries using refractive index matching technique

应用折射率匹配技术测量复杂形状通道内的液体流场

this process is known as "index matching" and produces a (possibly empty) set of eligible indexes for the given query.

该过程被称为“索引匹配”，并且为给定的查询生成一组合适的索引（可能是空集）。

The the historical fitting indicated that each development index matching degree is quite high.

通过精细历史拟合,储量拟合相对误差仅0.5%,各项开发指标拟合程度比较高.

in this article, the focus is on index matching rather than the optimizer's index selection.

本文专注于索引匹配，而不是优化器的索引选择。

however, there is a lot you can do to ensure index matching.

但您可以采取许多其他措施确保索引匹配。