[COMMAND] execute command in shell or start interactive shell Variables \prompt [TEXT] NAME prompt user to set internal variable \set [NAME [VALUE]] set internal variable, or list all if no parameters \unset NAME unset (delete) internal variable Large Objects \lo_export LOBOID FILE \lo_imp...
9、显示隐藏的元命令 SQL 当您了解有关psql交互式 shell 的更多信息时，最后要知道的一件事是，可以查看运行的每个元命令的 SQL 查询。这是了解运行 PostgreSQL 实例的目录表更多信息的一种非常有用的方法。注意，通常会执行多个 SQL 查询以获得所需的输出，因此在您尝试了解特定内容时，仅在短时间内启用它通常很...
\gset [PREFIX] execute query and store resultsinpsql variables \q quit psql \crosstabview [COLUMNS] execute query and display resultsincrosstab \watch [SEC] execute query every SEC seconds Help \?[commands] show help on backslash commands \? options show help on psql command-line options \?
multi_line = False # If multi_line_mode is set to "psql", in multi-line mode, [Enter] will execute # the current input if the input ends in a semicolon. # If multi_line_mode is set to "safe", in multi-line mode, [Enter] will always # insert a newline, and [Esc] [Enter]...
generic/shell_reverse_tcp normal No Generic Command Shell,Reverse TCP Inline generic/tight_loop normal No Generic x86 Tight Loop linux/x86/chmod normal No Linux Chmod linux/x86/exec normal No Linux Execute Command linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86,Bind IPv6 TCP St...
sp_exec(vsql varchar) returns void --返回空 language plpgsql security definer --定义者权限 as $function$ begin execute vsql; end; $function$ ; --将对应模式的对应模式的函数给对应的模式的拥有者 alter function copyload.sp_exec(varchar) owner to copyload; --将对应模式的sp_exec函数授权给...
Program Files → PostgreSQL 11.3 → SQL Shell(psql)Mac OS 我们直接搜索就可以了找到:进入命令行工具,我们可以使用 \help 来查看各个命令的语法 :postgres-# \help <command_name>例如,我们查看下 select 语句的语法:postgres=# \help SELECT Command: SELECT Description: retrieve rows from a table or view...
Program Files → PostgreSQL 11.3 → SQL Shell(psql) Mac OS我们直接搜索就可以了找到: 进入命令行工具,我们可以使用 \help 来查看各个命令的语法: postgres-# \help <command_name> 例如,我们查看下 select 语句的语法: postgres=# \help SELECT
Create the recovery.conf recovery command file in the cluster data directory and specify the shell command in the restore_command configuration parameter. You can use the cp command, another command, or a shell script. For example: restore_comm...
execute_sql_string先调用pg_parse_query将sql转换成parsetree_list。然后执行pg_analyze_and_rewrite(),pg_plan_queries(),ExecutorRun()对每一个parse tree重写执行。 staticvoidexecute_sql_string(constchar*sql) { List*raw_parsetree_list; DestReceiver*dest; ...