public' # 模式名称 #row_security = on #default_table_access_method = 'heap' #default_tablespace = '' # 表空间名称,'' 使用默认 #default_toast_compression = 'pglz' # 'pglz' 或'lz4' #temp_tablespaces = '' # 表空间名称列表,'' 只使用默认表空间 #check_function_bodies = on #default...
However, if row-level security was enabled on the table then this stopped being true. 12.16 版本号 更新要点/bug fixed 链接/注释 12.16 修复BRIN 索引中空白(无行)范围和全 NULL 范围之间的混淆,以及全 NULL 摘要的不正确合并 This fix will not in itself correct faulty BRIN entries. It's ...
Speed up two-phase commit recovery performance (Stas Kelvich, Nikhil Sontakke, Michael Paquier) Allow restrictive row-level security policies (Stephen Frost) Add CREATE SEQUENCE AS command to create a sequence matching an integer data type (Peter Eisentraut) Allow the specification of a function...
用户可以在数据表创建行访问控制(Row Level Security)策略,该策略是指针对特定数据库用户、特定SQL操作生效的表达式。当数据库用户对数据表访问时,若SQL满足数据表特定的Row Level Security策略,在查询优化阶段将满足条件的表达式,按照属性(PERMISSIVE | RESTRICTIVE)类型,通过AND或OR方式拼接,应用到执行计划上。 行级访...
row_security | on | Enable row security. search_path | "$user", public | Sets the schema search order for names that are not schema-qualified. segment_size | 1GB | Shows the number of pages per disk file. seq_page_cost | 1 | Sets the planner's estimate of the cost of a sequenti...
row_security | on | Enable row security. search_path | "$user", public | Sets the schema search order for names that are not schema-qualified. segment_size | 1GB | Shows the number of pages per disk file. seq_page_cost | 1 | Sets the planner's estimate of the cost of a sequenti...
Speed up two-phase commit recovery performance (Stas Kelvich, Nikhil Sontakke, Michael Paquier) Allowrestrictive row-level security policies(Stephen Frost) AddCREATE SEQUENCE AScommand to create a sequence matching an integer data type (Peter Eisentraut) ...
When the data is scattered all over the place, Postgres will do a bitmap index scan. It builds a bitmap of the pages and offsets within the page of every matching row it finds. Then it scans the table (heap), getting all the rows with just one fetch for each page. ...
(1 row) Note: Be careful as some kernels do not allow a bigger value, specifically in Windows, there is no use of a higher value. wal_buffers PostgreSQL writes its WAL (write ahead log) record into the buffers and then these buffers are flushed to disk. The default size of the buffe...
DBMS_RLSImplements row level security functions in the database blocking users from seeing each other's data in the same application. DBMS_SESSIONFunctions with the ability to enable and disable roles. DBMS_UTLTITYA collection of functions for getting information about various runtime operations and...