database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-30 06:01:21 +03:00
Code Activity

Add contrib function references in the doc index

Browse Source 
Backpatch to 9.3.
Idea from Craig Ringer
This commit is contained in:
Bruce Momjian
2013-07-04 11:33:08 -04:00
parent 6bc8ef0b7f
commit 20a1b9e71b
20 changed files with 376 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
doc/src/sgml/fuzzystrmatch.sgml
View File

@@ -35,6 +35,14 @@
for working with Soundex codes:
</para>
<indexterm>
<primary>soundex</primary>
</indexterm>
<indexterm>
<primary>difference</primary>
</indexterm>
<synopsis>
soundex(text) returns text
difference(text, text) returns int
@@ -81,6 +89,14 @@ SELECT * FROM s WHERE difference(s.nm, 'john') &gt; 2;
This function calculates the Levenshtein distance between two strings:
</para>
<indexterm>
<primary>levenshtein</primary>
</indexterm>
<indexterm>
<primary>levenshtein_less_equal</primary>
</indexterm>
<synopsis>
levenshtein(text source, text target, int ins_cost, int del_cost, int sub_cost) returns int
levenshtein(text source, text target) returns int
@@ -145,6 +161,10 @@ test=# SELECT levenshtein_less_equal('extensive', 'exhaustive',4);
This function calculates the metaphone code of an input string:
</para>
<indexterm>
<primary>metaphone</primary>
</indexterm>
<synopsis>
metaphone(text source, int max_output_length) returns text
</synopsis>
@@ -180,6 +200,14 @@ test=# SELECT metaphone('GUMBO', 4);
These functions compute the primary and alternate codes:
</para>
<indexterm>
<primary>dmetaphone</primary>
</indexterm>
<indexterm>
<primary>dmetaphone_alt</primary>
</indexterm>
<synopsis>
dmetaphone(text source) returns text
dmetaphone_alt(text source) returns text