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/etc/vim/vimrc.tiny 添加以下两行 " Vim configuration file, in effect when invoked as "vi". The aim of this" configuration file is to provide a Vim environme 阅读全文
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使用网上的方法 dba@mklmi:~$ sudo su - postgres[sudo] password for dba: su: warning: cannot change directory to /home/postgres: No such file or directory$ ls 阅读全文
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可以参考https://www.modb.pro/db/331381 pg_toast_2619这个表是pg_statistic系统表的toast扩展表,如果PG报错如下: ERROR: unexpected chunk number 1 (expected 0) for toast value 1 阅读全文
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checking for library containing readline... noconfigure: error: readline library not foundIf you have readline already installed, see config.log for d 阅读全文
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mydb=# select * from car; id | name + 1 | aa 2 | bb 3 | cc 4 | ddd(4 rows)Time: 0.592 msmydb=# select *,ctid,xmin,xmax from car; id | name | ctid | xm 阅读全文