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171 lines
4.6 KiB
ReStructuredText
171 lines
4.6 KiB
ReStructuredText
===========================
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Query SQL and NoSQL servers
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===========================
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SQL
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===
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SQL servers are traditional databases with predefined data schema. Furthermore,
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modern versions also support BLOB data.
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You can search in the following servers:
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* `PostgreSQL`_
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* `MySQL`_
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* `SQLite`_
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The configuration of the new database engines are similar. You must put a valid
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SELECT SQL query in ``query_str``. At the moment you can only bind at most
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one parameter in your query.
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Do not include LIMIT or OFFSET in your SQL query as the engines
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rely on these keywords during paging.
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PostgreSQL
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----------
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Required PyPi package: ``psychopg2``
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You can find an example configuration below:
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.. code:: yaml
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- name : postgresql
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engine : postgresql
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database : my_database
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username : searx
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password : password
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query_str : 'SELECT * from my_table WHERE my_column = %(query)s'
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shortcut : psql
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Available options
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~~~~~~~~~~~~~~~~~
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* ``host``: IP address of the host running PostgreSQL. By default it is ``127.0.0.1``.
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* ``port``: Port number PostgreSQL is listening on. By default it is ``5432``.
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* ``database``: Name of the database you are connecting to.
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* ``username``: Name of the user connecting to the database.
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* ``password``: Password of the database user.
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* ``query_str``: Query string to run. Keywords like ``LIMIT`` and ``OFFSET`` are not allowed. Required.
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* ``limit``: Number of returned results per page. By default it is 10.
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MySQL
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-----
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Required PyPi package: ``mysql-connector-python``
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This is an example configuration for quering a MySQL server:
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.. code:: yaml
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- name : mysql
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engine : mysql_server
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database : my_database
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username : searx
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password : password
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limit : 5
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query_str : 'SELECT * from my_table WHERE my_column=%(query)s'
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shortcut : mysql
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Available options
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~~~~~~~~~~~~~~~~~
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* ``host``: IP address of the host running MySQL. By default it is ``127.0.0.1``.
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* ``port``: Port number MySQL is listening on. By default it is ``3306``.
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* ``database``: Name of the database you are connecting to.
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* ``auth_plugin``: Authentication plugin to use. By default it is ``caching_sha2_password``.
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* ``username``: Name of the user connecting to the database.
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* ``password``: Password of the database user.
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* ``query_str``: Query string to run. Keywords like ``LIMIT`` and ``OFFSET`` are not allowed. Required.
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* ``limit``: Number of returned results per page. By default it is 10.
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SQLite
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------
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You can read from your database ``my_database`` using this example configuration:
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.. code:: yaml
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- name : sqlite
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engine : sqlite
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shortcut: sq
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database : my_database
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query_str : 'SELECT * FROM my_table WHERE my_column=:query'
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Available options
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~~~~~~~~~~~~~~~~~
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* ``database``: Name of the database you are connecting to.
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* ``query_str``: Query string to run. Keywords like ``LIMIT`` and ``OFFSET`` are not allowed. Required.
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* ``limit``: Number of returned results per page. By default it is 10.
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NoSQL
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=====
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NoSQL data stores are used for storing arbitrary data without first defining their
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structure. To query the supported servers, you must install their drivers using PyPi.
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You can search in the following servers:
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* `Redis`_
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* `MongoDB`_
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Redis
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-----
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Reqired PyPi package: ``redis``
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Example configuration:
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.. code:: yaml
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- name : mystore
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engine : redis_server
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exact_match_only : True
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host : 127.0.0.1
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port : 6379
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password : secret-password
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db : 0
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shortcut : rds
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enable_http : True
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Available options
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~~~~~~~~~~~~~~~~~
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* ``host``: IP address of the host running Redis. By default it is ``127.0.0.1``.
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* ``port``: Port number Redis is listening on. By default it is ``6379``.
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* ``password``: Password if required by Redis.
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* ``db``: Number of the database you are connecting to.
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* ``exact_match_only``: Enable if you need exact matching. By default it is ``True``.
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MongoDB
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-------
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Required PyPi package: ``pymongo``
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Below is an example configuration for using a MongoDB collection:
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.. code:: yaml
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- name : mymongo
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engine : mongodb
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shortcut : icm
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host : '127.0.0.1'
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port : 27017
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database : personal
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collection : income
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key : month
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enable_http: True
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Available options
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~~~~~~~~~~~~~~~~~
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* ``host``: IP address of the host running MongoDB. By default it is ``127.0.0.1``.
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* ``port``: Port number MongoDB is listening on. By default it is ``27017``.
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* ``password``: Password if required by Redis.
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* ``database``: Name of the database you are connecting to.
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* ``collection``: Name of the collection you want to search in.
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* ``exact_match_only``: Enable if you need exact matching. By default it is ``True``.
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