我正在尝试使用 PHP 在 Postgres 数据库上执行查询。我收到以下错误:pg_prepare(): Query failed: ERROR: relation "login" does not exist LINE 1: SELECT * FROM login 这是我的代码片段:$connString = "host= port= dbname= user=password=";$conn = pg_connect($connString);if ($conn) { $sql = 'SELECT * FROM login '; if (pg_prepare($conn, "myQuery", $sql)) { $result = pg_execute($conn, "myQuery", array()); if ($result) { while ($row = pg_fetch_row($result)) { echo $row[0]; echo $row[1]; } } else { echo 'executing error!'; } } else { echo 'preparing error!'; }} else { echo "Connection error!";}if ($conn) { pg_close($conn);}当我运行此脚本时,它还会打印“准备错误!”我想数据库中发生了一些事情。我试图创建一个新表。我还尝试在多个地方的查询中使用引号,但没有任何效果。这是我用来创建数据库的查询:CREATE TABLE login( user_id integer NOT NULL GENERATED BY DEFAULT AS IDENTITY ( INCREMENT 1 START 1 MINVALUE 1 MAXVALUE 2147483647 CACHE 1 ), username character varying(50) COLLATE pg_catalog."default", pwd character varying(50) COLLATE pg_catalog."default", CONSTRAINT pk_user_id PRIMARY KEY (user_id))我该如何解决?
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