postgresql - PostgreSQL - 在 TYPE 元素上创建索引

Question

我想在特定类型的元素中创建索引。

你能帮助我吗 ？谢谢

CREATE TYPE taddress AS (
 street1 varchar,
 street2 varchar,
 zipcode varchar,
 city varchar
);

CREATE TABLE person (
    id serial primary key,
    firstname varchar not null,
    lastname varchar not null,
    address taddress);

CREATE INDEX idx_street1 ON person ((address).street2); -- <- Doesn't work !! 

Answer 1

请试试这个：

CREATE INDEX idx_street1 ON person (((address).street2));

如果这对您不起作用，请包含完整的错误消息。