postgres with chinese textsearch support just for my miniflux compatibility

add zhparser and pg_jieba

build

git pull
Docker build -t name:tag .

migrate from exist database

1. In postgresql.conf, set default_text_search_config to 'chinese'
2. In psql, connect to database and run:

UPDATE entries SET document_vectors = setweight(to_tsvector(left(coalesce(title, ''), 500000)), 'A') || setweight(to_tsvector(left(coalesce(content, ''), 500000)), 'B');

(This comes from miniflux. But also split the link in content to words, looking for better way.)