我正在尝试将我的 postgres 数据库从 ninefold 迁移到 heroku。
我用来导出的命令是：
PGPASSWORD=password pg_dump -h ipaddress -p port -U user -d database -Fc --no-acl --no-owner -x -O -N postgis > ninefold-backup.dump
然后上传到 S3，然后运行此命令：
heroku pg:backups restore 'https://s3-us-west-2.amazonaws.com/bucket/ninefold-backup.dump' DATABASE_URL -a app --confirm app
然后 heroku 报告：
An error occurred and your backup did not finish.
Please run `heroku pg:backups info r003` for details.
在日志中显示如下错误：
2015-05-23 22:32:36 +0000: pg_restore: creating COMMENT EXTENSION xml2
2015-05-23 22:32:36 +0000: pg_restore: [archiver (db)] Error from TOC entry 5157; 0 0 COMMENT EXTENSION xml2
2015-05-23 22:32:36 +0000: pg_restore: [archiver (db)] could not execute query: ERROR: extension "xml2" does not exist
2015-05-23 22:32:36 +0000: Command was: COMMENT ON EXTENSION xml2 IS 'XPath querying and XSLT';
2015-05-23 22:32:36 +0000: pg_restore: processing data for table "spatial_ref_sys"
2015-05-23 22:32:36 +0000: pg_restore: [archiver (db)] Error from TOC entry 4958; 0 19010 TABLE DATA spatial_ref_sys postgres
2015-05-23 22:32:37 +0000: pg_restore: [archiver (db)] could not execute query: ERROR: relation "spatial_ref_sys" does not exist
2015-05-23 22:32:37 +0000: Command was: COPY spatial_ref_sys (srid, auth_name, auth_srid, srtext, proj4text) FROM stdin;
2015-05-23 22:07:39 +0000: pg_restore: processing data for table "topology"
2015-05-23 22:07:39 +0000: pg_restore: [archiver (db)] Error from TOC entry 4959; 0 20039 TABLE DATA topology postgres
2015-05-23 22:07:39 +0000: pg_restore: [archiver (db)] could not execute query: ERROR: relation "topology" does not exist
2015-05-23 22:07:39 +0000: Command was: COPY topology (id, name, srid, "precision", hasz) FROM stdin;
我错过了什么？
答案1
找到方法了。Ninefold 使用的扩展似乎存在一些问题，因此通过添加一个-n public选项，它将仅创建公共架构的备份。
PGPASSWORD=password pg_dump -h ipaddress -p port -U user -d database -Fc --no-acl --no-owner -x -O -N postgis -n public > ninefold-backup.dump