使用postgreSQL搭建比lucene方便N倍的全文搜索 第一部分

发布: 2009-07-03 09:33

[文章作者:陈臻 本文版本:v1.1 最后修改:2009.4.13 转载请注明原文链接:http://www.54chen.com/c/601 ]

所有用到到包有:

cmake-2.6.4.tar.gz (编nlpbamboo用)

CRF++-0.53.tar.gz(同上)

nlpbamboo-1.1.1.tar.bz2(分词用)

postgreSQL-8.3.3.tar.gz(索引用)

安装pgsql

tar -zxvf postgreSQL-8.3.3.tar.gz

cd postgre-8.3.3
./configure –prefix=/opt/pgsql
make
make install

useradd postgre

chown -R postgre.postgre /opt/pgsql
su - postgre
vi ~postgre/.bash_profile
添加
export PATH
PGLIB=/opt/pgsql/lib
PGDATA=/data/PGSearch
PATH=$PATH:/opt/pgsql/bin
MANPATH=$MANPATH:/opt/pgsql/man
export PGLIB PGDATA PATH MANPATH

# mkdir -p /data/PGSearch

# chown -R postgre.postgre /data/PGSearch

# chown -R postgre.postgre /opt/pgsql

#sudo -u postgre /opt/pgsql/bin/initdb –locale=zh_CN.UTF-8 –encoding=utf8 -D /data/PGSearch
#sudo -u postgre /opt/pgsql/bin/postmaster -i -D /data/PGSearch & //允许网络访问
#sudo -u postgre /opt/pgsql/bin/createdb kxgroup
# vim /data/PGSearch/pg_hba.conf 如下增加可访问的机器:

host all all 10.2.19.178 255.255.255.0 trust

#su - postgre

$pg_ctl stop

$postmaster -i -D /data/PGSearch &
安装中文分词(Cmake CRF++ bamboo)
Cmake是为了编译bamboo,CRF++是bamboo依赖的。

tar -zxvf cmake-2.6.4.tar.gz

cd cmake-2.6.4
./configure
gmake
make install

tar -zxvf CRF++-0.53.tar.gz
cd CRF++-0.53
./configure
make
make install

tar -jxvf nlpbamboo-1.1.1.tar.bz2
cd nlpbamboo-1.1.1
mkdir build
cd build/
cmake .. -DCMAKE_BUILD_TYPE=release
make all
make install

cp index.tar.bz2 /opt/bamboo/
cd /opt/bamboo/
tar -jxvf index.tar.bz2

#/opt/bamboo/bin/bamboo

如果出现:

ERROR: libcrfpp.so.0: cannot open shared object file: No such file or directory

就执行:

ln -s /usr/local/lib/libcrfpp.so.* /usr/lib/
ldconfig

增加上中文分词扩展到pgsql

#vim /root/.bash_profile 也增加:

PGLIB=/opt/pgsql/lib
PGDATA=/data/PGSearch
PATH=$PATH:/opt/pgsql/bin
MANPATH=$MANPATH:/opt/pgsql/man
export PGLIB PGDATA PATH MANPATH

#source ~/.bash_profile

cd /opt/bamboo/exts/postgres/chinese_parser/
make
make install

su - postgre
cd /opt/pgsql/share/contrib/
touch /opt/pgsql/share/tsearch_data/chinese_utf8.stop
psql kxgroup
\i chinese_parser.sql 导入

再执行下面的sql,已经可以将一段话分词了:

SELECT to_tsvector(’chinesecfg’, ‘结果在命令行下执行bamboo才知道’);

先到这里,下一部分讲述对TEXT字段进行索引和查询,完整构造一整个搜索引擎。


原文: http://qtchina.tk/?q=node/306

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