/* RELSEG_SIZE is the maximum number of blocks allowed in one disk file. Thus, the maximum size of a single file is RELSEG_SIZE * BLCKSZ; relations bigger than that are divided into multiple files. RELSEG_SIZE * BLCKSZ must be less than your OS' limit on file size. This is often...
mydb=# \dt gxl.*Did not find any relation named"gxl.*"# 如果模式中没有表就会返回这个提示# 创建表mydb=# create table gxl.test2(id int,name varchar(32), age int);CREATE TABLE# 查看表mydb=# \dt gxl.*List of relations Schema | Name | Type | Owner ---+---+---+--- gxl | ...
postgres=# postgres=# create extension pageinspect;CREATEEXTENSIONpostgres=# create table tasselectgenerate_series(1,100)a; 我这里创建了一个对应的插件,并且创建了一个表。 然后可以通过 pageinspect 插件的一些函数查看表所属的 page 的数据信息: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 postgres=...
gtmSlaveServer=gtm#value none means GTM slave is not available. Give none if you don't configure GTM Slave.gtmSlavePort=20001#Not used if you don't configure GTM slave.gtmSlaveDir=$HOME/pgxc/nodes/gtmSlave#Not used if you don't configure GTM slave.#Please note that when you have GTM ...
在Postgres 的数据目录中,表文件的存储格式为base/<database oid>/<table relfilenode>。 在base 目录下,存储了不同 Database 的数据,例如在我的当前环境中,当前的数据库名为rose,其 oid 为 24582。 img 所以在 Postgres 数据目录的 base 目录下,就会有对应的 Database 目录,目录名称就是 Oid: ...
#autovacuum_analyze_scale_factor = 0.1 # fraction of table size before analyze #autovacuum_freeze_max_age = 200000000 # maximum XID age before forced vacuum # (change requires restart) #autovacuum_multixact_freeze_max_age = 400000000 # maximum multixact age ...
SELECT pg_size_pretty(pg_relation_size('test')) AS table_size, pg_size_pretty(pg_relation_size('btree_random_x')) AS btree_random_size, pg_size_pretty(pg_relation_size('brin_random_x')) AS brin_random_size, pg_size_pretty(pg_relation_size('btree_sequential_x')) AS btree_sequentia...
GRANT SELECT ON TABLE pg_catalog.pg_namespace TO backup; GRANT SELECT ON TABLE pg_catalog.pg_extension TO backup; GRANT EXECUTE ON FUNCTION bt_index_check(regclass) TO backup; GRANT EXECUTE ON FUNCTION bt_index_check(regclass, bool) TO backup; GRANT EXECUTE ON FUNCTION bt_index_check(regcla...
MAINTAIN — a new privilege for table maintenance (commit: 151c22de Setting parameter values at the database and user level (commit: b9a7a822) Some patches have been updated: ... July 12, 2023 • PostgreSQL PostgreSQL 14 Internals for print on demand A quick note to let you know th...
select t1.datname AS db_name, pg_size_pretty(pg_database_size(t1.datname)) as db_size from pg_database t1 order by pg_database_size(t1.datname) desc;#shcema size: SELECT schema_name, pg_size_pretty(sum(table_size)::bigint) as "disk space", ...