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new b350d2b0a9b Update the description of the usage of
match_phrase_prefix. (#1726)
b350d2b0a9b is described below
commit b350d2b0a9bccc8534b77b3338a12c4efb0317d6
Author: zzzxl <yangs...@selectdb.com>
AuthorDate: Thu Jan 9 10:26:36 2025 +0800
Update the description of the usage of match_phrase_prefix. (#1726)
---
docs/table-design/index/inverted-index.md | 1 +
.../current/table-design/index/inverted-index.md | 1 +
.../version-2.0/table-design/index/inverted-index.md | 1 +
.../version-2.1/table-design/index/inverted-index.md | 1 +
.../version-3.0/table-design/index/inverted-index.md | 1 +
versioned_docs/version-2.0/table-design/index/inverted-index.md | 1 +
versioned_docs/version-2.1/table-design/index/inverted-index.md | 1 +
versioned_docs/version-3.0/table-design/index/inverted-index.md | 1 +
8 files changed, 8 insertions(+)
diff --git a/docs/table-design/index/inverted-index.md
b/docs/table-design/index/inverted-index.md
index 4b5adfa771c..c0213223f3e 100644
--- a/docs/table-design/index/inverted-index.md
+++ b/docs/table-design/index/inverted-index.md
@@ -302,6 +302,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 Prefix matching the last word keyword2, with a default limit of 50
prefixes (controlled by session variable inverted_index_max_expansions)
+-- It is necessary to ensure that keyword1 and keyword2 remain adjacent in the
original text after tokenization, with no other words in between.
-- 'keyword1 keyword2abc' matches because keyword1 is identical and
keyword2abc is a prefix of keyword2
-- 'keyword1 keyword2' also matches because keyword2 is a prefix of keyword2
-- 'keyword1 keyword3' does not match because keyword3 is not a prefix of
keyword2
diff --git
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/table-design/index/inverted-index.md
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/table-design/index/inverted-index.md
index 98dc525b983..78b3da13ceb 100644
---
a/i18n/zh-CN/docusaurus-plugin-content-docs/current/table-design/index/inverted-index.md
+++
b/i18n/zh-CN/docusaurus-plugin-content-docs/current/table-design/index/inverted-index.md
@@ -305,6 +305,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 在保持词顺序的前提下，对最后一个词 keyword2 做前缀匹配，默认找 50 个前缀词（session 变量
inverted_index_max_expansions 控制）
+-- 需要保证 keyword1, keyword2 在原文分词后也是相邻的，不能中间有其他词
-- 'keyword1 keyword2abc' 能匹配，因为 keyword1 完全一样，最后一个 keyword2abc 是 keyword2 的前缀
-- 'keyword1 keyword2' 也能匹配，因为 keyword2 也是 keyword2 的前缀
-- 'keyword1 keyword3' 不能匹配，因为 keyword3 不是 keyword2 的前缀
diff --git
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/table-design/index/inverted-index.md
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/table-design/index/inverted-index.md
index 00074fa14b3..4f1d1b8d25c 100644
---
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/table-design/index/inverted-index.md
+++
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.0/table-design/index/inverted-index.md
@@ -305,6 +305,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 在保持词顺序的前提下，对最后一个词 keyword2 做前缀匹配，默认找 50 个前缀词（session 变量
inverted_index_max_expansions 控制）
+-- 需要保证 keyword1, keyword2 在原文分词后也是相邻的，不能中间有其他词
-- 'keyword1 keyword2abc' 能匹配，因为 keyword1 完全一样，最后一个 keyword2abc 是 keyword2 的前缀
-- 'keyword1 keyword2' 也能匹配，因为 keyword2 也是 keyword2 的前缀
-- 'keyword1 keyword3' 不能匹配，因为 keyword3 不是 keyword2 的前缀
diff --git
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/table-design/index/inverted-index.md
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/table-design/index/inverted-index.md
index 43e12d40b58..6666a347a35 100644
---
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/table-design/index/inverted-index.md
+++
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/table-design/index/inverted-index.md
@@ -305,6 +305,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 在保持词顺序的前提下，对最后一个词 keyword2 做前缀匹配，默认找 50 个前缀词（session 变量
inverted_index_max_expansions 控制）
+-- 需要保证 keyword1, keyword2 在原文分词后也是相邻的，不能中间有其他词
-- 'keyword1 keyword2abc' 能匹配，因为 keyword1 完全一样，最后一个 keyword2abc 是 keyword2 的前缀
-- 'keyword1 keyword2' 也能匹配，因为 keyword2 也是 keyword2 的前缀
-- 'keyword1 keyword3' 不能匹配，因为 keyword3 不是 keyword2 的前缀
diff --git
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/table-design/index/inverted-index.md
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/table-design/index/inverted-index.md
index 98dc525b983..78b3da13ceb 100644
---
a/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/table-design/index/inverted-index.md
+++
b/i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/table-design/index/inverted-index.md
@@ -305,6 +305,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 在保持词顺序的前提下，对最后一个词 keyword2 做前缀匹配，默认找 50 个前缀词（session 变量
inverted_index_max_expansions 控制）
+-- 需要保证 keyword1, keyword2 在原文分词后也是相邻的，不能中间有其他词
-- 'keyword1 keyword2abc' 能匹配，因为 keyword1 完全一样，最后一个 keyword2abc 是 keyword2 的前缀
-- 'keyword1 keyword2' 也能匹配，因为 keyword2 也是 keyword2 的前缀
-- 'keyword1 keyword3' 不能匹配，因为 keyword3 不是 keyword2 的前缀
diff --git a/versioned_docs/version-2.0/table-design/index/inverted-index.md
b/versioned_docs/version-2.0/table-design/index/inverted-index.md
index 11fe799e9e8..2411fcb137d 100644
--- a/versioned_docs/version-2.0/table-design/index/inverted-index.md
+++ b/versioned_docs/version-2.0/table-design/index/inverted-index.md
@@ -302,6 +302,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 Prefix matching the last word keyword2, with a default limit of 50
prefixes (controlled by session variable inverted_index_max_expansions)
+-- It is necessary to ensure that keyword1 and keyword2 remain adjacent in the
original text after tokenization, with no other words in between.
-- 'keyword1 keyword2abc' matches because keyword1 is identical and
keyword2abc is a prefix of keyword2
-- 'keyword1 keyword2' also matches because keyword2 is a prefix of keyword2
-- 'keyword1 keyword3' does not match because keyword3 is not a prefix of
keyword2
diff --git a/versioned_docs/version-2.1/table-design/index/inverted-index.md
b/versioned_docs/version-2.1/table-design/index/inverted-index.md
index fae75d68110..7e86a2bd50d 100644
--- a/versioned_docs/version-2.1/table-design/index/inverted-index.md
+++ b/versioned_docs/version-2.1/table-design/index/inverted-index.md
@@ -299,6 +299,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 Prefix matching the last word keyword2, with a default limit of 50
prefixes (controlled by session variable inverted_index_max_expansions)
+-- It is necessary to ensure that keyword1 and keyword2 remain adjacent in the
original text after tokenization, with no other words in between.
-- 'keyword1 keyword2abc' matches because keyword1 is identical and
keyword2abc is a prefix of keyword2
-- 'keyword1 keyword2' also matches because keyword2 is a prefix of keyword2
-- 'keyword1 keyword3' does not match because keyword3 is not a prefix of
keyword2
diff --git a/versioned_docs/version-3.0/table-design/index/inverted-index.md
b/versioned_docs/version-3.0/table-design/index/inverted-index.md
index 4b5adfa771c..c0213223f3e 100644
--- a/versioned_docs/version-3.0/table-design/index/inverted-index.md
+++ b/versioned_docs/version-3.0/table-design/index/inverted-index.md
@@ -302,6 +302,7 @@ SELECT * FROM table_name WHERE content MATCH_PHRASE
'keyword1 keyword2 ~3';
SELECT * FROM table_name WHERE content MATCH_PHRASE 'keyword1 keyword2 ~3+';
-- 2.3 Prefix matching the last word keyword2, with a default limit of 50
prefixes (controlled by session variable inverted_index_max_expansions)
+-- It is necessary to ensure that keyword1 and keyword2 remain adjacent in the
original text after tokenization, with no other words in between.
-- 'keyword1 keyword2abc' matches because keyword1 is identical and
keyword2abc is a prefix of keyword2
-- 'keyword1 keyword2' also matches because keyword2 is a prefix of keyword2
-- 'keyword1 keyword3' does not match because keyword3 is not a prefix of
keyword2
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