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_part.sh ")|crontab- 使用...
Create the file/etc/apt/sources.list.d/pgdg.listand add a line for the repository #Create the file repository configuration:sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'#sudo sh -c'echo "deb ...
不允许在分区表上创建标记为 NO INHERIT 的 CHECK 约束。如果父表中存在相同的约束,则不能在分区的列上删除 NOT NULL 约束。 3.只要没有分区,就支持使用 ONLY 仅在分区表上添加或删除约束。一旦分区存在,使用 ONLY 将导致错误。相反,可以添加和删除分区本身的约束(如果它们不存在于父表中)。 4.由于分区表本身...
CREATE TABLE measurement ( city_id int not null, logdate date not null, peaktemp int, unitsales int ) PARTITION BY RANGE (logdate); 1. 2. 3. 4. 5. 6. 2.创建分区。每个分区的定义必须指定与父分区方法和分区键相对应的边界。请注意,指定边界以使新分区的值与一个或多个现有分区中的值重叠...
Note that buffers recycled by a * strategy object are intentionally not counted here. */ pg_atomic_fetch_add_u32(&StrategyControl->numBufferAllocs, 1); /* * First check, without acquiring the lock, whether there's buffers in the * freelist. Since we otherwise don't require the ...
There are some installers that even run the initdb for you; you did not specify the OS, so no idea of how your OS / installer handles setup/installation. So, you may do something like: sudo service postgresql initdb sudo su - postgres createdb test psql -c "\l test" Share Improve ...
typedefstructAllocSetContext{MemoryContextData header;/*对应于该内存上下文的头部信息 Standard memory-context fields *//* Info about storage allocated in this context: */AllocBlock blocks;/*该内存上下文中所有内存块的链表 head of list of blocks in this set */AllocChunk freelist[ALLOCSET_NUM_FREEL...
# <Compat> # Alow users to use the old style arguments like # 'postgresql-setup initdb $SERVICE_NAME'.case "$1" in initdb|upgrade) action="--$1" shift warn "using obsoleted argument syntax, try --help" old_long_args="help,usage,version,debug" ...
CREATE TABLE device_types ( device_type_id int primary key, device_type_name text not null unique ); 跨所有节点复制表以在任何列上启用外键和 join SELECT create_reference_table('device_types'); 插入设备类型 INSERT INTO device_types (device_type_id, device_type_name) VALUES (55, 'laptop')...
JOIN の ON 条件で LIKE 式を使用すると、非決定的エラーで失敗する問題を修正しました。 Babelfish for Aurora PostgreSQL 3.2 このAurora Babelfish リリースには、Aurora PostgreSQL 15.3 が付属しています。Aurora PostgreSQL 15.3 の改善点の詳細については、「Amazon Aurora PostgreSQL の更新」を参照して...