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document new drop_indexes_generate_script function

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git-svn-id: http://svn.osgeo.org/postgis/trunk@7690 b70326c6-7e19-0410-871a-916f4a2858ee
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Regina Obe 2011-08-03 03:51:45 +00:00
parent 09241cd2f9
commit ad49899197
1 changed files with 83 additions and 7 deletions
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90
doc/extras_tigergeocoder.xml
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@ -31,6 +31,82 @@
and uses OpenStreetMap gazeteer formatted data. It requires osm2pgsql for loading the data, PostgreSQL 8.4+ and PostGIS 1.5+ to function. It is packaged as a webservice interface and seems designed to be called as a webservice.
Just like the tiger geocoder, it has both a geocoder and a reverse geocoder component. From the documentation, it is unclear if it has a pure SQL interface like the tiger geocoder, or if a good deal of the logic is implemented in the web interface.</para>
<refentry id="Drop_Indexes_Generate_Script">
<refnamediv>
<refname>Drop_Indexes_Generate_Script</refname>
<refpurpose>Generates a script that drops all non-primary key and non-unique indexes on tiger schema and user specified schema. Defaults schema to <varname>tiger_data</varname> if no schema is specified.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>text <function>Drop_Indexes_Generate_Script</function></funcdef>
<paramdef><type choice='opt'>text </type> <parameter>param_schema=tiger_data</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsection>
<title>Description</title>
<para>Generates a script that drops all non-primary key and non-unique indexes on tiger schema and user specified schema. Defaults schema to <varname>tiger_data</varname> if no schema is specified.</para>
<para>This is useful for minimizing index bloat that may confuse the query planner or take up unnecessary space. Use in combination with <xref linkend="Install_Missing_Indexes"/> to add just the indexes used by the geocoder.</para>
<para>Availability: 2.0.0</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting>SELECT drop_indexes_generate_script() As actionsql;
actionsql
---------------------------------------------------------
DROP INDEX tiger.idx_tiger_countysub_lookup_lower_name;
DROP INDEX tiger.idx_tiger_edges_countyfp;
DROP INDEX tiger.idx_tiger_faces_countyfp;
DROP INDEX tiger.tiger_place_the_geom_gist;
DROP INDEX tiger.tiger_edges_the_geom_gist;
DROP INDEX tiger.tiger_state_the_geom_gist;
DROP INDEX tiger.idx_tiger_addr_least_address;
DROP INDEX tiger.idx_tiger_addr_tlid;
DROP INDEX tiger.idx_tiger_addr_zip;
DROP INDEX tiger.idx_tiger_county_countyfp;
DROP INDEX tiger.idx_tiger_county_lookup_lower_name;
DROP INDEX tiger.idx_tiger_county_lookup_snd_name;
DROP INDEX tiger.idx_tiger_county_lower_name;
DROP INDEX tiger.idx_tiger_county_snd_name;
DROP INDEX tiger.idx_tiger_county_the_geom_gist;
DROP INDEX tiger.idx_tiger_countysub_lookup_snd_name;
DROP INDEX tiger.idx_tiger_cousub_countyfp;
DROP INDEX tiger.idx_tiger_cousub_cousubfp;
DROP INDEX tiger.idx_tiger_cousub_lower_name;
DROP INDEX tiger.idx_tiger_cousub_snd_name;
DROP INDEX tiger.idx_tiger_cousub_the_geom_gist;
DROP INDEX tiger_data.idx_tiger_data_ma_addr_least_address;
DROP INDEX tiger_data.idx_tiger_data_ma_addr_tlid;
DROP INDEX tiger_data.idx_tiger_data_ma_addr_zip;
DROP INDEX tiger_data.idx_tiger_data_ma_county_countyfp;
DROP INDEX tiger_data.idx_tiger_data_ma_county_lookup_lower_name;
DROP INDEX tiger_data.idx_tiger_data_ma_county_lookup_snd_name;
DROP INDEX tiger_data.idx_tiger_data_ma_county_lower_name;
DROP INDEX tiger_data.idx_tiger_data_ma_county_snd_name;
:
:
</programlisting>
</refsection>
<!-- Optionally add a "See Also" section -->
<refsection>
<title>See Also</title>
<para><xref linkend="Install_Missing_Indexes"/>, <xref linkend="Missing_Indexes_Generate_Script"/></para>
</refsection>
</refentry>
<refentry id="Drop_State_Tables_Generate_Script">
<refnamediv>
<refname>Drop_State_Tables_Generate_Script</refname>
@ -656,13 +732,13 @@ FROM (SELECT address As actual_addr, lon, lat,
reverse_geocode( ST_SetSRID(ST_Point(lon,lat),4326) ) As rg
FROM addresses_to_geocode WHERE rating IS NOT NULL) As foo;
actual_addr | lon | lat | int_addr1 | cross1 | cross2
-----------------------------------------------------+-----------+----------+------------------------------+-------------------+-----------------
529 Main Street, Boston MA, 02129 | -71.07187 | 42.38351 | 538 Main St, Boston, MA 02129| Main St |
77 Massachusetts Avenue, Cambridge, MA 02139 | -71.09436 | 42.35981 | 60 Massachusetts Ave, Cambr..| Massachusetts Ave | Wellesley St
28 Capen Street, Medford, MA | -71.12184 | 42.41010 | 29 Capen St, Malden, MA 02155| Capen St Exd |
124 Mount Auburn St, Cambridge, Massachusetts 02138 | -71.12298 | 42.37336 | 2 University Rd, Belmont, M..| University Rd | Mount Auburn St
950 Main Street, Worcester, MA 01610 | -71.82361 | 42.24948 | 963 Main St, Worceste.. 01603| Main St | Crystal St</programlisting>
actual_addr | lon | lat | int_addr1 | cross1 | cross2
-----------------------------------------------------+-----------+----------+-------------------------------------------+-----------------+-----------
529 Main Street, Boston MA, 02129 | -71.07187 | 42.38351 | 538 Main St, Boston, MA 02129 | Mishawum St |
77 Massachusetts Avenue, Cambridge, MA 02139 | -71.09436 | 42.35981 | 58 Massachusetts Ave, Cambridge, MA 02139 | Wellesley St | Vassar St
28 Capen Street, Medford, MA | -71.12184 | 42.41010 | 29 Capen St, Medford, MA 02155 | |
124 Mount Auburn St, Cambridge, Massachusetts 02138 | -71.12298 | 42.37336 | 1 University Rd, Cambridge, MA 02138 | Mount Auburn St |
950 Main Street, Worcester, MA 01610 | -71.82361 | 42.24948 | 950 Main St, Worcester, MA 01610 | Maywood St | </programlisting>
</refsection>
<!-- Optionally add a "See Also" section -->