我试图提取我的数据库。在转储时，我收到以下错误。我知道数据库中的表已损坏，我可以使用exclude选项排除损坏的表并转储其余表。但是我正在寻找一个选项来转储即使是无效表块之外的损坏表。
我以前执行转储的命令是：
pg_dump -U postgres -p 5432 -d DBNAME -v -n SCHEMA_NAME -f "OUTFILE.sql"
错误打印：
pg_dump: Dumping the contents of table "TABLE_NAME" failed: PQgetResult() failed.
pg_dump: Error message from server: ERROR: invalid page in block 2145280 of relation base/16384/25464
我能够访问损坏的表及其数据。因此，我相信可以访问的部分数据可以转储。如果有可能，请分享。
答案 0 :(得分：2)
您可以设置defmodule TexasTechWeb.TokenController do
use TexasTechWeb, :controller
alias TexasTech.{Repo, User, Token, UserService}
import Ecto.Query
IO.inspect "##############Token Controller#############"
def confirm_email(conn, %{"code" => code}) do
case Repo.one(fetch_valid_token_q(code, "email_confirmation")) do
%Token{user: user} = token ->
case UserService.confirm_and_update_token(user, token, :email_verified_at) do
{:ok, %{user: _u, token: _t}} ->
render(conn, "email_confirmed.html")
{:error, _, _, _} ->
text(conn, "there was a problem")
end
nil ->
conn
|> put_status(404)
|> render(TexasTechWeb.ErrorView, :"404")
end
end
def reset_password(conn, %{"code" => code}) do
IO.inspect "##########inside rest_password###########"
case Repo.one(fetch_valid_token_q(code, "password_reset")) do
%Token{} = token ->
changeset = User.changeset(%User{}, %{})
render(conn, "reset_password.html", code: code, changeset: changeset)
nil ->
conn
|> put_status(404)
|> render(TexasTechWeb.ErrorView, :"404")
end
end
def to_hash(ast) do
:sha256
|> :crypto.hash(ast)
|> Base.encode16
end
def change_password(conn, %{"user" => %{"code" => code, "password" => password, "repeated_password" => repeated_password}}) do
token = Repo.one(fetch_valid_token_q(code, "password_reset"))
changeset = User.change_password_changeset(token.user, %{password: String.downcase(to_hash(password)), repeated_password: String.downcase(to_hash(repeated_password))})
if changeset.valid? do
Repo.update(changeset)
render(conn, "password_changed.html")
else
changeset = User.changeset(%User{}, %{})
conn
|> put_flash(:info, "Wrong, try again!")
|> render("reset_password.html", code: code, changeset: changeset)
end
end
def fetch_valid_token_q(code, type) do
from t in Token,
where: t.code == ^code,
where: t.type == ^type,
where: t.used == false,
where: t.expires_at >= ^Timex.now(),
join: assoc(t, :user),
preload: :user
end
end
，然后PostgreSQL应该将此类页面归零（并忽略）。