PostGIS 在哪里存储加载的 shp2pgsql 数据？

Question

当我安装 PostGIS 及其 address_standardizer 和 postgis_tiger_geocoder 扩展时，会创建许多表格，我可以使用 \dt 查看这些表格。这些表的作用是什么？shp2pgsql 在哪里加载 shapefile？

为了展示这个，一个空的数据库，首先有什么数据库？什么都没有，用 \dt.

检查

testgis=# -- Enable PostGIS (as of 3.0 contains just geometry/geography)
CREATE EXTENSION postgis;
-- enable raster support (for 3+)
CREATE EXTENSION postgis_raster;
-- Enable Topology
CREATE EXTENSION postgis_topology;
-- Enable PostGIS Advanced 3D
-- and other geoprocessing algorithms
-- sfcgal not available with all distributions
CREATE EXTENSION postgis_sfcgal;
-- fuzzy matching needed for Tiger
CREATE EXTENSION fuzzystrmatch;
-- rule based standardizer
CREATE EXTENSION address_standardizer;
-- example rule data set
CREATE EXTENSION address_standardizer_data_us;
-- Enable US Tiger Geocoder
CREATE EXTENSION postgis_tiger_geocoder;
CREATE EXTENSION
CREATE EXTENSION
CREATE EXTENSION
ERROR:  can not open the control file of extension «/usr/share/postgresql-13/extension/postgis_sfcgal.control»: File does not exist
CREATE EXTENSION
CREATE EXTENSION
CREATE EXTENSION
CREATE EXTENSION

现在检查\dt。

拥有 postgres 用户：

                  List of relations
 Schema |           Name           | Type  |  Owner   
--------+--------------------------+-------+----------
 public | spatial_ref_sys          | table | postgres
 public | us_gaz                   | table | postgres
 public | us_lex                   | table | postgres
 public | us_rules                 | table | postgres
 tiger  | addr                     | table | postgres
 tiger  | addrfeat                 | table | postgres
 tiger  | bg                       | table | postgres
 tiger  | county                   | table | postgres
 tiger  | county_lookup            | table | postgres
 tiger  | countysub_lookup         | table | postgres
 tiger  | cousub                   | table | postgres
 tiger  | direction_lookup         | table | postgres
 tiger  | edges                    | table | postgres
 tiger  | faces                    | table | postgres
 tiger  | featnames                | table | postgres
 tiger  | geocode_settings         | table | postgres
 tiger  | geocode_settings_default | table | postgres
 tiger  | loader_lookuptables      | table | postgres
 tiger  | loader_platform          | table | postgres
 tiger  | loader_variables         | table | postgres
 tiger  | pagc_gaz                 | table | postgres
 tiger  | pagc_lex                 | table | postgres
 tiger  | pagc_rules               | table | postgres
 tiger  | place                    | table | postgres
 tiger  | place_lookup             | table | postgres
 tiger  | secondary_unit_lookup    | table | postgres
 tiger  | state                    | table | postgres
 tiger  | state_lookup             | table | postgres
 tiger  | street_type_lookup       | table | postgres
 tiger  | tabblock                 | table | postgres
 tiger  | tract                    | table | postgres
 tiger  | zcta5                    | table | postgres
 tiger  | zip_lookup               | table | postgres
 tiger  | zip_lookup_all           | table | postgres
 tiger  | zip_lookup_base          | table | postgres
 tiger  | zip_state                | table | postgres
 tiger  | zip_state_loc            | table | postgres
(37 rows)

普通用户：

            Listado de relaciones
 Esquema |     Nombre      | Tipo  |  Dueño   
---------+-----------------+-------+----------
 public  | spatial_ref_sys | tabla | postgres
 public  | us_gaz          | tabla | postgres
 public  | us_lex          | tabla | postgres
 public  | us_rules        | tabla | postgres
(4 filas)

Answer 1

shp2pgsql 默认情况下会为每个导入的 shapefile 创建一个 table。但是，您可以使用 -a 选项让它将多个 shapefile 加载到同一个 table 中。

tablespatial_ref_sys，顾名思义，只保留空间参考系统的数据，这对于坐标转换等操作至关重要。

tables us_gaz、us_lex 和 us_rules 与扩展名 address_standardizer.

PostGIS 在哪里存储加载的 shp2pgsql 数据？

Where does PostGIS store data loaded shp2pgsql?

postgresql

postgis

postgis-installation