From c7699d9acf0416670f7babd4999a913085aa08e7 Mon Sep 17 00:00:00 2001 From: Alexander Korotkov Date: Wed, 13 Jun 2018 18:31:18 +0300 Subject: [PATCH] Documentation improvement for pg_trgm Documentation of word_similarity() and strict_word_similarity() functions contains some vague wordings which could confuse users. This patch makes those wordings more clear. word_similarity() was introduced in PostgreSQL 9.6, and corresponding part of documentation needs to be backpatched. Author: Bruce Momjian, Alexander Korotkov Discussion: https://postgr.es/m/20180526165648.GB12510%40momjian.us Backpatch: 9.6, where word_similarity() was introduced --- doc/src/sgml/pgtrgm.sgml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/doc/src/sgml/pgtrgm.sgml b/doc/src/sgml/pgtrgm.sgml index 2613c7a3d5..350da77104 100644 --- a/doc/src/sgml/pgtrgm.sgml +++ b/doc/src/sgml/pgtrgm.sgml @@ -153,8 +153,8 @@ This function returns a value that can be approximately understood as the greatest similarity between the first string and any substring of the second string. However, this function does not add padding to the boundaries of - the extent. Thus, a whole word match gets a higher score than a match with - a part of the word. + the extent. Thus, the number of additional characters present in the + second string is not considered, except for the mismatched word boundry.