postgres=#CREATETABLEtbl_log_p201804PARTITIONOFtbl_logFORVALUESFROM('2018-04-01')TO('2018-05-01');CREATETABLE AI代码助手复制代码 3、分区创建成功,分区创建之后需把DEFAULT分区连接。 连接DEFAULT分区报错,如下: postgres=#ALTERTABLEtbl_log ATTACHPARTITIONtbl_log_defaultDEFAULT; ERROR:partitionconstraintisv...
cat>/tmp/create_part.sh<<EOF dateStr=\$(date -d '+1 days' +%Y%m%d); psql -c "CREATE TABLE tab_\$dateStr (LIKE tab INCLUDING INDEXES); ALTER TABLE tab ATTACH PARTITION tab_\$dateStr FOR VALUES IN ('\$dateStr')"; EOF (crontab -l2>/dev/null;echo"0 14 * * * bash /tmp/...
CREATE TABLE people\_y2000 PARTITION OF people FOR VALUES FROM ('2000-01-01') TO ('2001-01-01'); CREATE TABLE people\_y2001 PARTITION OF people FOR VALUES FROM ('2001-01-01') TO ('2002-01-01'); CREATE TABLE people\_y2002 PARTITION OF people FOR VALUES FROM ('2002-01-01') T...
A word of warning though: after adding a default partition, it becomes impossible to directly add another partition to cover a new range. You’ll need to detach the default partition, create the new partition, “manually” move the matching rows from the default partition to the new partition...
But in v11 we can first create a default partition: pg11=# CREATE TABLE measurement_default PARTITION OF measurement DEFAULT; CREATE TABLE Note the new syntax that says “DEFAULT” instead of “FOR VALUES …”. With the default partition in place, we can insert rows that do not fall in ...
CREATETABLEtbl_list(i int)PARTITIONBYLIST(i)CONFIGURATION(valuesin(1,2),(3,4)DEFAULTPARTITIONtbl_default); 作为一个例子,可以看到如果像下面一样创建分区表,会自动创建所有分区: 代码语言:javascript 复制 postgres=# create tabletpart_list(a text primary key,b int,c int)partition bylist(a)configurat...
CREATETABLEmeasurement_default PARTITIONOFmeasurementDEFAULT; 七、分区表不能自动建,怎么办? 方法1:利用定时器,定时某段时间创建分区表,可以利用操作系统定时器或者程序里面的定时任务,但是太麻烦,弃用。 方法2:编写存储过程脚本,一次性生成未来3年,未来10年的多个分区表,下面给出存储过程的脚本。这不是最优解,后面...
CREATETABLEuserinfo ( userid int4, usernamecharactervarying(64), ctimetimestamp(6)withouttimezone )PARTITIONBYHASH(userid); 创建子表 CREATETABLEuserinfo_p0PARTITIONOFuserinfoFORVALUESWITH(MODULUS4, REMAINDER0);CREATETABLEuserinfo_p1PARTITIONOFuserinfoFORVALUESWITH(MODULUS4, REMAINDER1);CREATETABLEuserinfo_...
)PARTITIONBYHASH(stuname); 创建索引 CREATEINDEXidx_stuendt_stunameonstudentusingbtree(stuname); 创建子表 CREATETABLEstudent_p0PARTITIONOFstudentFORVALUESWITH(MODULUS4, REMAINDER0);CREATETABLEstudent_p1PARTITIONOFstudentFORVALUESWITH(MODULUS4, REMAINDER1);CREATETABLEstudent_p2PARTITIONOFstudentFORVALUESWITH(MO...
最明显的解决方案是添加一个新分区，但为世界上的每个国家/地区执行此操作将导致数百个记录数量很少的表，这并不理想。幸运的是，可以定义默认分区！创建默认分区：CREATE TABLE people_default PARTITION OF people DEFAULT;再次尝试相同的插入，将导致：如您所见，Linda 已添加到 people_default 分区。