postgres：复合全文本/ btree索引

问题描述

我想在一列上进行全文搜索并在另一列中排序。如果我分别索引这两列，postgres不能在这个查询中使用两个索引。有没有办法创建一个可用于这种情况的组合索引？

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$ b

您可以通过 contrib模块，Postgres不能使用GIN索引进行排序。来自：

I want to do a fulltext search on one column and sort in a different column. If I index these two columns separately postgres can't use both indexes in this query. Is there a way to create a composite index that could be used in this scenario?

解决方案

Unfortunately not.

While you can attach scalar columns to a GIN index via the btree_gin contrib module, Postgres can't use a GIN index for sorting. From the docs:

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