(如果要变化,建议使用下面即将介绍的 statement_timestamp 或者 clock_timestamp )。 (1)带时区信息# CURRENT_DATE CURRENT_TIME CURRENT_TIMESTAMP CURRENT_TIME(precision) CURRENT_TIMESTAMP(precision) 还记得上面说的特殊值now吗,实际上跟CURRENT_TIMESTAMP一样: Copy //下面三个完全相等SELECTCURRENT_TIMESTAMP;...
UPDATE "deptDict" SET deptcode=deptcode,deptname=deptname,pycode=pycode,isenabled=isenabled,updatedhisdatetime=CURRENT_TIMESTAMP WHERE deptcode=deptcode; RETURN TRUE; END $body$ LANGUAGE 'plpgsql' VOLATILE; 最后再加上如何执行这个存储过程(函数) -- 执行存储过程方法1 SELECT * FROM 函数名称(参数1...
we provide pgxc_remove_gtm command to remove it. This command#will not stop the current GTM. It is up to the operator.#--- GTM Master ---#--- Overall ---gtmName=gtm gtmMasterServer=gtm gtmMasterPort=6666gtmMasterDir=$HOME/pgxc/nodes/gtm...
select now() - '182 day' :: INTERVAL as "time" 1. 分组取其中指定的数据 WITH ab AS ( SELECT pump_frequency_sensor, pump_frequency_cmd, device_id, "local_create_time", ROW_NUMBER ( ) OVER ( PARTITION BY device_id ORDER BY "local_create_time" DESC ) AS ranks FROM "device_data"....
Universal C Runtime (UCRT). UCRT is an up-to-date version and used by Microsoft Visual Studio by default so that builds by UCRT behave like they are built natively. If you have MSYS2 ready, you can continue with MinGW with UCRT environment to actually build Postgre...
(all) builds postgresql, postgis, wal2json, pldebugger, plv8 (till PostgreSQL 13), pgvector (starting with PostgreSQL 15) and pgrouting (starting with PostgreSQL 15). PostGIS and especially plv8 with all their dependencies take a long time to build, so if you don't need them, type...
The connection pool has been exhausted, either raise MaxPoolSize (currently 100) or Timeout (currently 15 seconds) A simple fix was to add theusingkeyword: using var con = Hangfire.JobStorage.Current.GetConnection(); Sign up for freeto join this conversation on GitHub....
time series database Loaded: loaded (/usr/lib/systemd/system/influxdb.service; enabled; vendor preset: disabled) Active: active (running) since Mon 2022-05-09 02:02:39 PDT; 2h 5min ago Docs: https://docs.influxdata.com/influxdb/ Main PID: 27892 (inf...
*/ ret = ForwardSyncRequest(ftag, type);//放入共享内存数组中 /* * If we are successful in queueing the request, or we failed and were * instructed not to retry on error, break. */ if (ret || (!ret && !retryOnError)) break; WaitLatch(NULL, WL_EXIT_ON_PM_DEATH | WL_TIME...
tv_sec = 60; timeout.tv_usec = 0; /* Now GTM-Standby can backup current status during this region */ GTM_RWLockRelease(&my_threadinfo->thr_lock); selres = select(nSockets, &rmask, NULL, NULL, &timeout); /* Prohibit GTM-Standby backup from here. */ GTM_RWLockAcquire(&my_...