postgresql - 创建函数以创建表 Postgresql

Question

我试图在 POSTGRESQL 函数中创建表，但出现以下错误。

ERROR: no schema has been selected to create in CONTEXT: SQL statement " CREATE TABLE IF NOT EXISTS test.t_testing ( id serial PRIMARY KEY, customerid int, daterecorded date, value double precision )"

我的函数如下。

CREATE OR REPLACE FUNCTION test.create_table_type1(t_name varchar(30))
  RETURNS VOID AS
$func$
BEGIN

EXECUTE format('
   CREATE TABLE IF NOT EXISTS %I (
    id serial PRIMARY KEY,
    customerid int,
    daterecorded date,
    value double precision
   )', 'test.t_' || t_name);

END
$func$ LANGUAGE plpgsql;

Answer 1

试试这个:

CREATE OR REPLACE FUNCTION test.create_table_type1(t_name varchar(30))
  RETURNS VOID AS
$func$
BEGIN

EXECUTE format(
    'CREATE TABLE IF NOT EXISTS %I.%I (
        id serial       PRIMARY KEY,
        customerid      int,
        daterecorded    date,
        value           double precision
    )',
   'test',
   ( 't_' || t_name )
);

END
$func$ LANGUAGE plpgsql;

所以将“架构”和“表格”分开。