2、IsAutoCloseConnection=true 需要设置true 3、异步方法wait存在漏写, 一个不能少 。解决方案:找到漏掉的await不想找就用db.CopyNew()。 4、使用await 返回值必须有Task,不能是Void 这种(表达式中异步只能是Func<Task>不能是Action<X> ,比如List.Forech就是Action要改普通forech) ,不想修改 db改成db.CopyNew()解决 5、Task.WhenAll 、 ParallelAsync 和 第...
NpgsqlOperationInProgressException: A command is already in progress I have exactly the same problem with v1.6.2 After downgrading back to version 1.6.0 it works fine though. Same problem. 1.6.1 works Guys, are sure you’re disposing/closing the connection properly? Cause you have to care o...
snapshot->subxcnt = subcount; snapshot->suboverflowed = suboverflowed; snapshot->snapXactCompletionCount = curXactCompletionCount; snapshot->curcid = GetCurrentCommandId(false); /* * This is a new snapshot, so set both refcounts are zero, and mark it as * not copied in persistent memo...
if self.is_paused(): self.watchdog.disable() self._was_paused = True else: if self._was_paused: self.state_handler.schedule_sanity_checks_after_pause() self._was_paused = False if not self.cluster.has_member(self.state_handler.name): self.touch_member() # cluster has leader key but...
archive_command = '/bin/date' max_wal_senders = 8 wal_keep_segments = 4096 wal_sender_timeout = 15s hot_standby = on max_standby_archive_delay = 600s max_standby_streaming_delay = 600s wal_receiver_status_interval = 1s hot_standby_feedback = off wal_receiver_timeout = 30s wal_...
PostgreSQL遵循PostgreSQL许可，是一个开源软件。PostgreSQL由PostgreSQL全球开发组开发，由极少数的公司志愿...
In the example below, [tablename] is optional. Without a table specified, ANALYZE will be run on available tables in the current schema that the user has access to. ANALYZE VERBOSE [tablename] REINDEX The REINDEX command rebuilds one or more indices, replacing the previous version...
rel->rd_islocaltemp) PreventCommandIfReadOnly("COPY FROM"); cstate = BeginCopyFrom(pstate, rel, whereClause, stmt->filename, stmt->is_program, NULL, stmt->attlist, stmt->options); *processed = CopyFrom(cstate); /* copy from file to database */ EndCopyFrom(cstate); } else { ...
If you change the number of processor cores, Azure creates a new server with this compute allocation. When the server is running, client connections are switched to the new server. This switch can take up to a minute. During this interval, no new connections can be ma...
如果元组没有被更新或删除,则t_xmax设为0 */union{CommandIdt_cid;/* 表示当前事务下有多少指令在当前指令之前执行。对于一个事务BEGIN,INSERT,INSERT,INSERT,COMMIT;若插入元组的指令是第一个Insert,则t_cid=0。若是第二个insert,则t_cid=1。*/TransactionIdt_xvac;/* old-style VACUUM FULL xact ID */...