pg_restore 重复键和无效命令错误

Posted 2023-03-31

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【中文标题】pg_restore 重复键和无效命令错误【英文标题】：pg_restore duplicate key and invalid command errors 【发布时间】：2016-06-22 11:14:10 【问题描述】：

Postgres 版本：

PostgreSQL 9.2.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3), 64-bit

我们使用 vm 转换器将我们的系统从一台服务器转移到另一台服务器（使用更好的 cpu 和内存），当我尝试备份数据库时出现错误：

pg_dump: reading schemas 
pg_dump: reading user-defined tables 
pg_dump: reading extensions 
pg_dump: reading user-defined functions 
pg_dump: reading user-defined types 
pg_dump: reading procedural languages 
pg_dump: reading user-defined aggregate functions 
pg_dump: reading user-defined operators 
pg_dump: reading user-defined operator classes 
pg_dump: reading user-defined operator families 
pg_dump: reading user-defined text search parsers 
pg_dump: reading user-defined text search templates 
pg_dump: reading user-defined text search dictionaries 
pg_dump: reading user-defined text search configurations 
pg_dump: reading user-defined foreign-data wrappers 
pg_dump: reading user-defined foreign servers 
pg_dump: reading default privileges 
pg_dump: reading user-defined collations 
pg_dump: reading user-defined conversions 
pg_dump: reading type casts 
pg_dump: reading table inheritance information 
pg_dump: reading rewrite rules 
pg_dump: finding extension members 
pg_dump: finding inheritance relationships 
pg_dump: reading column info for interesting tables 
pg_dump: finding the columns and types of table "account_account" 
pg_dump: [archiver (db)] query failed: ERROR:  missing chunk number 0 for toast value 3297740 in pg_toast_2619 
pg_dump: [archiver (db)] query was: SELECT a.attnum, a.attname, a.atttypmod, a.attstattarget, a.attstorage, t.typstorage, a.attnotnull, a.atthasdef, a.attisdropped, a.attlen, a.attalign, a.attislocal, pg_catalog.format_type(t.oid,a.atttypmod) AS atttypname, array_to_string(a.attoptions, ', ') AS attoptions, CASE WHEN a.attcollation <> t.typcollation THEN a.attcollation ELSE 0 END AS attcollation, pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(option_name) || ' ' || pg_catalog.quote_literal(option_value) FROM pg_catalog.pg_options_to_table(attfdwoptions) ORDER BY option_name), E', 
    ') AS attfdwoptions FROM pg_catalog.pg_attribute a LEFT JOIN pg_catalog.pg_type t ON a.atttypid = t.oid WHERE a.attrelid = '274619'::pg_catalog.oid AND a.attnum > 0::pg_catalog.int2 ORDER BY a.attrelid, a.attnum

我使用reindexdb 解决了它，在我尝试pg_dump -U postgres my_db > /home/mydb.backup 之后它成功了。然后我尝试恢复数据库以确保备份有效

psql -U postgres new_db < /home/mydb.backup

并且有一个错误：

ERROR : extra data after last expected column 
Context: COPY tbl1, line1: "1 2013-12-02 2013-12-02  9387.74  9775.46211485490864940000"   6180.9500000000   80262 ...." 
ERROR : column "id" of relation "tbl1" does not exists 
invalid command \N 
invalid command \N 
invalid command \N 
..... 
invalid command \N 
invalid command \. 
ERROR:  syntax error at or near "87685" 
LINE 1: 87685 SO87690 1 170468 2015-05-30 2015 05 30 
        ^ 
invalid command \. 

ERROR:  duplicate key value violates unique constraint "ir_act_client_pkey" 
DETAIL:  Key (id)=(103) already exists. 
CONTEXT:  COPY ir_act_client, line 21: "" 
ERROR:  duplicate key value violates unique constraint "ir_act_report_xml_pkey" 
DETAIL:  Key (id)=(733) already exists. 
CONTEXT:  COPY ir_act_report_xml, line 59: "" 
ERROR:  duplicate key value violates unique constraint "ir_act_server_pkey" 
DETAIL:  Key (id)=(703) already exists. 
CONTEXT:  COPY ir_act_server, line 6: "" 
ERROR:  duplicate key value violates unique constraint "ir_act_window_pkey" 
DETAIL:  Key (id)=(1) already exists. 
CONTEXT:  COPY ir_act_window, line 235: "334    Last Product Inventories        ir.actions.act_window   \N      1       2013-07-03 10:39:48.399509  2013-12-16 16:38:..." 
ERROR:  duplicate key value violates unique constraint "ir_act_window_group_rel_act_id_gid_key" 
DETAIL:  Key (act_id, gid)=(76, 1) already exists. 
CONTEXT:  COPY ir_act_window_group_rel, line 14: "" 
ERROR:  duplicate key value violates unique constraint "ir_act_window_view_pkey" 
DETAIL:  Key (id)=(100) already exists. 
CONTEXT:  COPY ir_act_window_view, line 88: ""

如何解决？

【问题讨论】：

请尝试使用 pg_dump -Fc 进行转储，看看会得到什么 @e4c5 感谢您的建议，由于数据库已加载，我现在无法备份，今晚我会尝试。我尝试使用 -Fc 并且文件在备份 12GB 之后，数据库是 20GB，没有 -Fc 的旧文件是 30GB，现在当我尝试恢复这个 12GB 文件时出现错误

ERROR:  syntax error AT OR near "PGDMP" LINE 1: PGDMPREVOKE ALL ON SCHEMA public FROM postgres;         ^ GRANT GRANT GRANT ERROR:  syntax error AT OR near "" LINE 1:  "position" INTEGER,         ^ ERROR:  syntax error AT OR near "" LINE 1:     LANGUAGE c STRICT

pg_dump 的输出是通过 pg_restore 而不是 psql 来恢复的 @e4c5 我尝试pg_restore -C -d postgres --disable-triggers /.../../... 并得到一些错误pastebin.com/r2TwSAPb 但现在恢复仍在继续 【参考方案1】：

当您导出数据时，使用带有 -Fc 选项的 pg_dump。