相当于由整数和范围组成的排除约束

Question

我需要具有与此exclusion约束相等的内容

drop table if exists t;
create table t (
    i int,
    tsr tstzrange,
    exclude using gist (i with =, tsr with &&)
);
ERROR:  data type integer has no default operator class for access method "gist"
HINT:  You must specify an operator class for the index or define a default operator class for the data type.

我猜错误信息显而易见。怎么做？

Answer 1

您需要安装附加模块btree_gist才能使其正常运行。该模块安装了缺少的操作符类。

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