列表如下
| 目录名称 | Name Purpose | 目的 |
|---|---|---|
| pg_aggregate | aggregate functions | 集合函数 |
| pg_am | index access methods | 索引访问方法 |
| pg_amop | access method operators | 访问方法运算符 |
| pg_amproc | access method support procedures | 访问方法支持程序 |
| pg_attrdef | column default values | 列默认值 |
| pg_attribute | table columns (“attributes”) | 表列（“属性”） |
| pg_authid | authorization identifiers (roles) | 授权标识符（角色） |
| pg_auth_members | authorization identifier membership relationships | 授权标识符成员关系 |
| pg_cast | casts (data type conversions) | 强制类型转换（数据类型转换） |
| pg_class | tables, indexes, sequences, views (“relations”) | 表，索引，序列，视图（“关系”） |
| pg_constraint | check constraints, unique constraints, primary key constraints, foreign key constraints | 检查约束，唯一约束，主键约束，外键约束 |
| pg_conversion | encoding conversion information | 编码转换信息 |
| pg_database | databases within this database cluster | 该数据库集群中的数据库 |
| pg_depend | dependencies between database objects | 数据库对象之间的依赖关系 |
| pg_description | descriptions or comments on database objects | 关于数据库对象的描述或注释 |
| pg_enum | enum label and value definitions | 枚举标签和值定义 |
| pg_foreign_data_wrapper | foreign-data wrapper definitions | 外部数据包装器定义 |
| pg_foreign_server | foreign server definitions | 外部服务器定义 |
| pg_index | additional index information | 附加索引信息 |
| pg_inherits | table inheritance hierarchy | 表继承层次结构 |
| pg_language | languages for writing functions | 编写功能的语言 |
| pg_largeobject | large objects | 大物件 |
| pg_listener | asynchronous notification support | 异步通知支持 |
| pg_namespace | schemas | 模式 |
| pg_opclass | access method operator classes | 访问方法运算符类 |
| pg_operator | operators | 经营者 |
| pg_opfamily | access method operator families | 访问方法运算符族 |
| pg_pltemplate | template data for procedural languages | 程序语言的模板数据 |
| pg_proc | functions and procedures | 功能和程序 |
| pg_rewrite | query rewrite rules | 查询重写规则 |
| pg_shdepend | dependencies on shared objects | 对共享对象的依赖 |
| pg_shdescription | comments on shared objects | 对共享对象的评论 |
| pg_statistic | planner statistics | 规划者统计 |
| pg_tablespace | tablespaces within this database cluster | 该数据库集群中的表空间 |
| pg_trigger | triggers | 触发器 |
| pg_ts_config | text search configurations | 文字搜索配置 |
| pg_ts_config_map | text search configurations’ token mappings | 文本搜索配置的令牌映射 |
| pg_ts_dict | text search dictionaries | 文字搜索字典 |
| pg_ts_parser | text search parsers | 文字搜寻解析器 |
| pg_ts_template | text search templates | 文字搜寻范本 |
| pg_type | data types | 资料类型 |
| pg_user_mapping | mappings of users to foreign servers | 用户到外部服务器的映射 |
官网文档地址
https://www.postgresql.org/docs/8.4/catalogs.html