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jianliangqi pushed a commit to branch branch-2.0
in repository https://gitbox.apache.org/repos/asf/doris.git
The following commit(s) were added to refs/heads/branch-2.0 by this push:
new 0a968f06e7b [Feature](inverted index) add lowercase option for
inverted index analyzer (#28704) (#28948)
0a968f06e7b is described below
commit 0a968f06e7bfa2a01c1501918d785f400f7132dc
Author: airborne12 <airborn...@gmail.com>
AuthorDate: Mon Dec 25 15:19:38 2023 +0800
[Feature](inverted index) add lowercase option for inverted index analyzer
(#28704) (#28948)
---
be/src/clucene | 2 +-
be/src/olap/inverted_index_parser.cpp | 11 +-
be/src/olap/inverted_index_parser.h | 4 +
.../rowset/segment_v2/inverted_index_reader.cpp | 10 +-
.../rowset/segment_v2/inverted_index_writer.cpp | 6 +
docs/en/docs/data-table/index/inverted-index.md | 3 +
docs/zh-CN/docs/data-table/index/inverted-index.md | 3 +
.../apache/doris/analysis/InvertedIndexUtil.java | 9 +
.../data/inverted_index_p0/test_lowercase.out | 112 +++++++++++
.../suites/inverted_index_p0/test_lowercase.groovy | 218 +++++++++++++++++++++
10 files changed, 372 insertions(+), 6 deletions(-)
diff --git a/be/src/clucene b/be/src/clucene
index 6f8a21ffe15..ed92e181310 160000
--- a/be/src/clucene
+++ b/be/src/clucene
@@ -1 +1 @@
-Subproject commit 6f8a21ffe15bd78a1cd3e685067ee5c9ed071827
+Subproject commit ed92e1813103a513aa0ee16730b94cc840daec73
diff --git a/be/src/olap/inverted_index_parser.cpp
b/be/src/olap/inverted_index_parser.cpp
index 5678a217b53..85e2f523dde 100644
--- a/be/src/olap/inverted_index_parser.cpp
+++ b/be/src/olap/inverted_index_parser.cpp
@@ -37,8 +37,6 @@ std::string
inverted_index_parser_type_to_string(InvertedIndexParserType parser_
default:
return INVERTED_INDEX_PARSER_UNKNOWN;
}
-
- return INVERTED_INDEX_PARSER_UNKNOWN;
}
InvertedIndexParserType get_inverted_index_parser_type_from_string(const
std::string& parser_str) {
@@ -119,4 +117,13 @@ CharFilterMap get_parser_char_filter_map_from_properties(
return char_filter_map;
}
+std::string get_parser_lowercase_from_properties(
+ const std::map<std::string, std::string>& properties) {
+ if (properties.find(INVERTED_INDEX_PARSER_LOWERCASE_KEY) !=
properties.end()) {
+ return properties.at(INVERTED_INDEX_PARSER_LOWERCASE_KEY);
+ } else {
+ return "";
+ }
+}
+
} // namespace doris
diff --git a/be/src/olap/inverted_index_parser.h
b/be/src/olap/inverted_index_parser.h
index 54455bddef8..a265c6289a7 100644
--- a/be/src/olap/inverted_index_parser.h
+++ b/be/src/olap/inverted_index_parser.h
@@ -69,6 +69,8 @@ const std::string INVERTED_INDEX_PARSER_CHAR_FILTER_TYPE =
"char_filter_type";
const std::string INVERTED_INDEX_PARSER_CHAR_FILTER_PATTERN =
"char_filter_pattern";
const std::string INVERTED_INDEX_PARSER_CHAR_FILTER_REPLACEMENT =
"char_filter_replacement";
+const std::string INVERTED_INDEX_PARSER_LOWERCASE_KEY = "lower_case";
+
std::string inverted_index_parser_type_to_string(InvertedIndexParserType
parser_type);
InvertedIndexParserType get_inverted_index_parser_type_from_string(const
std::string& parser_str);
@@ -82,4 +84,6 @@ std::string get_parser_phrase_support_string_from_properties(
CharFilterMap get_parser_char_filter_map_from_properties(
const std::map<std::string, std::string>& properties);
+std::string get_parser_lowercase_from_properties(
+ const std::map<std::string, std::string>& properties);
} // namespace doris
diff --git a/be/src/olap/rowset/segment_v2/inverted_index_reader.cpp
b/be/src/olap/rowset/segment_v2/inverted_index_reader.cpp
index 292884e631b..6e1ebb53a9d 100644
--- a/be/src/olap/rowset/segment_v2/inverted_index_reader.cpp
+++ b/be/src/olap/rowset/segment_v2/inverted_index_reader.cpp
@@ -162,8 +162,7 @@ void
InvertedIndexReader::get_analyse_result(std::vector<std::string>& analyse_r
while (token_stream->next(&token)) {
if (token.termLength<char>() != 0) {
- analyse_result.emplace_back(
- std::string(token.termBuffer<char>(),
token.termLength<char>()));
+ analyse_result.emplace_back(token.termBuffer<char>(),
token.termLength<char>());
}
}
@@ -266,12 +265,17 @@ Status FullTextIndexReader::query(OlapReaderStatistics*
stats, RuntimeState* run
inverted_index_ctx->char_filter_map =
get_parser_char_filter_map_from_properties(_index_meta.properties());
auto analyzer = create_analyzer(inverted_index_ctx.get());
+ auto lowercase =
get_parser_lowercase_from_properties(_index_meta.properties());
+ if (lowercase == "true") {
+ analyzer->set_lowercase(true);
+ } else if (lowercase == "false") {
+ analyzer->set_lowercase(false);
+ }
auto reader = create_reader(inverted_index_ctx.get(), search_str);
inverted_index_ctx->analyzer = analyzer.get();
get_analyse_result(analyse_result, reader.get(), analyzer.get(),
column_name,
query_type);
}
-
if (analyse_result.empty()) {
auto msg = fmt::format(
"token parser result is empty for query, "
diff --git a/be/src/olap/rowset/segment_v2/inverted_index_writer.cpp
b/be/src/olap/rowset/segment_v2/inverted_index_writer.cpp
index 040f9fc4d84..44d03723b15 100644
--- a/be/src/olap/rowset/segment_v2/inverted_index_writer.cpp
+++ b/be/src/olap/rowset/segment_v2/inverted_index_writer.cpp
@@ -185,6 +185,12 @@ public:
// ANALYSER_NOT_SET, ANALYSER_NONE use default SimpleAnalyzer
_analyzer =
std::make_unique<lucene::analysis::SimpleAnalyzer<char>>();
}
+ auto lowercase =
get_parser_lowercase_from_properties(_index_meta->properties());
+ if (lowercase == "true") {
+ _analyzer->set_lowercase(true);
+ } else if (lowercase == "false") {
+ _analyzer->set_lowercase(false);
+ }
_index_writer =
std::make_unique<lucene::index::IndexWriter>(_dir.get(), _analyzer.get(),
create,
true);
_index_writer->setMaxBufferedDocs(MAX_BUFFER_DOCS);
diff --git a/docs/en/docs/data-table/index/inverted-index.md
b/docs/en/docs/data-table/index/inverted-index.md
index f86d47c8bbe..789316bfaf3 100644
--- a/docs/en/docs/data-table/index/inverted-index.md
+++ b/docs/en/docs/data-table/index/inverted-index.md
@@ -89,6 +89,9 @@ The features for inverted index is as follows:
- char_replace: replace each char in the pattern with a char in the
replacement
- char_filter_pattern: character array to be replaced
- char_filter_replacement: replaced character array, can be left
unset, defaults to a space character
+ - lower_case: Whether to convert tokens to lowercase, thereby achieving
case-insensitive matching.
+ - true: Convert to lowercase
+ - false: Do not convert to lowercase
- COMMENT is optional
```sql
diff --git a/docs/zh-CN/docs/data-table/index/inverted-index.md
b/docs/zh-CN/docs/data-table/index/inverted-index.md
index ad4c9a011d9..3dcfd7895c9 100644
--- a/docs/zh-CN/docs/data-table/index/inverted-index.md
+++ b/docs/zh-CN/docs/data-table/index/inverted-index.md
@@ -87,6 +87,9 @@ Doris倒排索引的功能简要介绍如下：
- char_replace 将pattern中每个char替换为一个replacement中的char
- char_filter_pattern：需要被替换掉的字符数组
- char_filter_replacement：替换后的字符数组，可以不用配置，默认为一个空格字符
+ - lower_case: 是否将分词进行小写转换，从而在匹配的时候实现忽略大小写
+ - true: 转换小写
+ - false：不转换小写
- COMMENT 是可选的，用于指定注释
```sql
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/analysis/InvertedIndexUtil.java
b/fe/fe-core/src/main/java/org/apache/doris/analysis/InvertedIndexUtil.java
index 4196f774e2b..9e0ea206001 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/InvertedIndexUtil.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/InvertedIndexUtil.java
@@ -43,6 +43,8 @@ public class InvertedIndexUtil {
public static String INVERTED_INDEX_CHAR_FILTER_CHAR_REPLACE =
"char_replace";
+ public static String INVERTED_INDEX_PARSER_LOWERCASE = "lower_case";
+
public static String getInvertedIndexParser(Map<String, String>
properties) {
String parser = properties == null ? null :
properties.get(INVERTED_INDEX_PARSER_KEY);
// default is "none" if not set
@@ -98,6 +100,13 @@ public class InvertedIndexUtil {
if (parser == null && !properties.isEmpty()) {
throw new AnalysisException("invalid index properties, please
check the properties");
}
+ String lowerCase = properties.get(INVERTED_INDEX_PARSER_LOWERCASE);
+ if (lowerCase != null) {
+ if (!"true".equals(lowerCase) && !"false".equals(lowerCase)) {
+ throw new AnalysisException("invalid index properties,
lowercase must be true or false");
+ }
+ }
+
}
// default is "none" if not set
diff --git a/regression-test/data/inverted_index_p0/test_lowercase.out
b/regression-test/data/inverted_index_p0/test_lowercase.out
new file mode 100644
index 00000000000..03c2f57468f
--- /dev/null
+++ b/regression-test/data/inverted_index_p0/test_lowercase.out
@@ -0,0 +1,112 @@
+-- This file is automatically generated. You should know what you did if you
want to edit this
+-- !sql --
+1 hello world
+2 HELLO WORLD
+3 Hello World
+
+-- !sql --
+1 hello world
+2 HELLO WORLD
+3 Hello World
+
+-- !sql --
+1 hello world
+2 HELLO WORLD
+3 Hello World
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+
+-- !sql --
+2 HELLO 我爱你中国
+
+-- !sql --
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello world
+2 HELLO WORLD
+3 Hello World
+
+-- !sql --
+1 hello world
+2 HELLO WORLD
+3 Hello World
+
+-- !sql --
+1 hello world
+2 HELLO WORLD
+3 Hello World
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+2 HELLO 我爱你中国
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello world
+
+-- !sql --
+2 HELLO WORLD
+
+-- !sql --
+3 Hello World
+
+-- !sql --
+1 hello 我来到北京清华大学
+
+-- !sql --
+2 HELLO 我爱你中国
+
+-- !sql --
+3 Hello 人民可以得到更多实惠
+
+-- !sql --
+1 hello 我来到北京清华大学
+
+-- !sql --
+2 HELLO 我爱你中国
+
+-- !sql --
+3 Hello 人民可以得到更多实惠
+
diff --git a/regression-test/suites/inverted_index_p0/test_lowercase.groovy
b/regression-test/suites/inverted_index_p0/test_lowercase.groovy
new file mode 100644
index 00000000000..0670e05594a
--- /dev/null
+++ b/regression-test/suites/inverted_index_p0/test_lowercase.groovy
@@ -0,0 +1,218 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+
+suite("test_lowercase"){
+ // prepare test table
+ def indexTblName = "lowercase_test1"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED PROPERTIES("parser"="english")
COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName VALUES (1, 'hello world'), (2, 'HELLO
WORLD'), (3, 'Hello World');"
+ qt_sql "SELECT * FROM $indexTblName WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName2 = "lowercase_test2"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName2}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName2}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED PROPERTIES("parser"="unicode")
COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName2 VALUES (1, 'hello 我来到北京清华大学'), (2, 'HELLO
我爱你中国'), (3, 'Hello 人民可以得到更多实惠');"
+ qt_sql "SELECT * FROM $indexTblName2 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName2 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName2 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName3 = "lowercase_test3"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName3}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName3}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED PROPERTIES("parser"="chinese")
COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName3 VALUES (1, 'hello 我来到北京清华大学'), (2, 'HELLO
我爱你中国'), (3, 'Hello 人民可以得到更多实惠');"
+ qt_sql "SELECT * FROM $indexTblName3 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName3 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName3 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName4 = "lowercase_test11"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName4}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName4}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED
PROPERTIES("parser"="english","lower_case"="true") COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName4 VALUES (1, 'hello world'), (2, 'HELLO
WORLD'), (3, 'Hello World');"
+ qt_sql "SELECT * FROM $indexTblName4 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName4 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName4 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName5 = "lowercase_test12"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName5}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName5}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED
PROPERTIES("parser"="unicode","lower_case"="true") COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName5 VALUES (1, 'hello 我来到北京清华大学'), (2,
'HELLO 我爱你中国'), (3, 'Hello 人民可以得到更多实惠');"
+ qt_sql "SELECT * FROM $indexTblName5 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName5 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName5 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName6 = "lowercase_test13"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName6}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName6}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED
PROPERTIES("parser"="chinese","lower_case"="true") COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName6 VALUES (1, 'hello 我来到北京清华大学'), (2,
'HELLO 我爱你中国'), (3, 'Hello 人民可以得到更多实惠');"
+ qt_sql "SELECT * FROM $indexTblName6 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName6 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName6 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName7 = "lowercase_test21"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName7}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName7}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED
PROPERTIES("parser"="english","lower_case"="false") COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName7 VALUES (1, 'hello world'), (2, 'HELLO
WORLD'), (3, 'Hello World');"
+ qt_sql "SELECT * FROM $indexTblName7 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName7 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName7 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName8 = "lowercase_test22"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName8}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName8}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED
PROPERTIES("parser"="unicode","lower_case"="false") COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName8 VALUES (1, 'hello 我来到北京清华大学'), (2,
'HELLO 我爱你中国'), (3, 'Hello 人民可以得到更多实惠');"
+ qt_sql "SELECT * FROM $indexTblName8 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName8 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName8 WHERE c MATCH 'Hello' ORDER BY id";
+
+ def indexTblName9 = "lowercase_test23"
+
+ sql "DROP TABLE IF EXISTS ${indexTblName9}"
+ sql """
+ CREATE TABLE IF NOT EXISTS ${indexTblName9}(
+ `id`int(11)NULL,
+ `c` text NULL,
+ INDEX c_idx(`c`) USING INVERTED
PROPERTIES("parser"="chinese","lower_case"="false") COMMENT ''
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`) BUCKETS 1
+ PROPERTIES(
+ "replication_allocation" = "tag.location.default: 1"
+ );
+ """
+
+ sql "INSERT INTO $indexTblName9 VALUES (1, 'hello 我来到北京清华大学'), (2,
'HELLO 我爱你中国'), (3, 'Hello 人民可以得到更多实惠');"
+ qt_sql "SELECT * FROM $indexTblName9 WHERE c MATCH 'hello' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName9 WHERE c MATCH 'HELLO' ORDER BY id";
+ qt_sql "SELECT * FROM $indexTblName9 WHERE c MATCH 'Hello' ORDER BY id";
+}
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