[英]Why does Postgres tell me that cross database references are not available when both tables are on the same database?
Here's the SQL: 这是SQL:
CREATE TABLESPACE fnord1 location '/tmp/fnord1';
CREATE TABLESPACE fnord2 location '/tmp/fnord2';
CREATE SCHEMA IF NOT EXISTS fnord;
DROP TABLE IF EXISTS fnord.shea;
DROP TABLE IF EXISTS fnord.wilson;
CREATE TABLE fnord.shea (
id text not null,
CONSTRAINT fnord_shea_id PRIMARY KEY (id) USING INDEX TABLESPACE fnord2
) TABLESPACE fnord1;
CREATE TABLE fnord.wilson (
thing text not null,
shea_id bigserial not null,
CONSTRAINT fnord_wilson_id PRIMARY KEY (thing, shea_id) USING INDEX TABLESPACE fnord2,
CONSTRAINT fnord_wilson_shea_fkey FOREIGN KEY (shea_id) REFERENCES fnord.shea.id
) TABLESPACE fnord1;
This fails because of the foreign key statement, with 由于外键声明,此操作失败,带有
ERROR: cross-database references are not implemented: "fnord.shea.id"
错误:跨数据库引用未实现:“ fnord.shea.id”
But... these are in the same database, are they not? 但是...这些都在同一个数据库中,不是吗? If not, what's the right way to get them in the same database?
如果不是,将它们放入同一数据库的正确方法是什么?
Use schema.table_name(column_name)
: 使用
schema.table_name(column_name)
:
CONSTRAINT fnord_wilson_shea_fkey FOREIGN KEY (shea_id) REFERENCES fnord.shea.id
to 至
CONSTRAINT fnord_wilson_shea_fkey FOREIGN KEY (shea_id) REFERENCES fnord.shea(id)
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