String Postgres：在由\prompt显示的文本中使用连接

在

psql

中，有没有办法将

\prompt

文本作为字符串和变量的串联？例如，假设在文件

test.sql

中有：

\set name table_customers
\echo :name 
\prompt CONCAT('The table ', table_customers, ' was created') answer
\echo :answer

上述方法不起作用：

myuser=# \i /home/myuser/test.sql
table_customers
CONCAT(The table ,
psql:/home/myuser/test.sql:3: invalid variable name: "table_customers,"
:answer

myuser=# \i /home/myuser/test.sql
table_customers
The table
psql:/home/myuser/test.sql:3: invalid variable name: "||"
:answer

我还尝试：

\set name table_customers
\echo :name 
\prompt 'The table ' || table_customers || ' was created' answer
\echo :answer

但它也不起作用：

myuser=# \i /home/myuser/test.sql
table_customers
CONCAT(The table ,
psql:/home/myuser/test.sql:3: invalid variable name: "table_customers,"
:answer

myuser=# \i /home/myuser/test.sql
table_customers
The table
psql:/home/myuser/test.sql:3: invalid variable name: "||"
:answer

用“+”替换“| |”给出了完全相同的结果

---

正确的方法是什么？

我实际上刚刚找到了一个可行的解决方案：首先连接到另一个变量（使用简单空格），然后将该新变量作为

\prompt

文本传递：

\set name table_customers
\echo :name
\set input 'The table ' :name ' was created.'
\prompt :input answer
\echo :answer