community.general.postgresql_query – Run PostgreSQL queries
Note
This plugin is part of the community.general collection (version 1.3.2).
To install it use: ansible-galaxy collection install community.general.
To use it in a playbook, specify: community.general.postgresql_query.
Synopsis
- Runs arbitrary PostgreSQL queries.
 - Can run queries from SQL script files.
 - Does not run against backup files. Use community.general.postgresql_db with state=restore to run queries on files made by pg_dump/pg_dumpall utilities.
 
Requirements
The below requirements are needed on the host that executes this module.
- psycopg2
 
Parameters
| Parameter | Choices/Defaults | Comments | 
|---|---|---|
|   autocommit    boolean    |   
  |    Execute in autocommit mode when the query can't be run inside a transaction block (e.g., VACUUM).  Mutually exclusive with check_mode.   |  
|   ca_cert    string    |    Specifies the name of a file containing SSL certificate authority (CA) certificate(s).  If the file exists, the server's certificate will be verified to be signed by one of these authorities.  aliases: ssl_rootcert  |  |
|   db    string    |    Name of database to connect to and run queries against.  aliases: login_db  |  |
|   encoding    string    added in 0.2.0 of community.general    |    Set the client encoding for the current session (e.g.   UTF-8).The default is the encoding defined by the database.   |  |
|   login_host    string    |    Host running the database.   |  |
|   login_password    string    |    The password used to authenticate with.   |  |
|   login_unix_socket    string    |    Path to a Unix domain socket for local connections.   |  |
|   login_user    string    |   Default: "postgres"   |    The username used to authenticate with.   |  
|   named_args    dictionary    |    Dictionary of key-value arguments to pass to the query. When the value is a list, it will be converted to PostgreSQL array.  Mutually exclusive with positional_args.   |  |
|   path_to_script    path    |    Path to a SQL script on the target machine.  If the script contains several queries, they must be semicolon-separated.  Mutually exclusive with query.   |  |
|   port    integer    |   Default: 5432   |    Database port to connect to.  aliases: login_port  |  
|   positional_args    list / elements=raw    |    List of values to be passed as positional arguments to the query. When the value is a list, it will be converted to PostgreSQL array.  Mutually exclusive with named_args.   |  |
|   query    string    |    SQL query to run. Variables can be escaped with psycopg2 syntax http://initd.org/psycopg/docs/usage.html.   |  |
|   search_path    list / elements=string    added in 1.0.0 of community.general    |    List of schema names to look in.   |  |
|   session_role    string    |    Switch to session_role after connecting. The specified session_role must be a role that the current login_user is a member of.  Permissions checking for SQL commands is carried out as though the session_role were the one that had logged in originally.   |  |
|   ssl_mode    string    |   
  |    Determines whether or with what priority a secure SSL TCP/IP connection will be negotiated with the server.  See https://www.postgresql.org/docs/current/static/libpq-ssl.html for more information on the modes.  Default of   prefer matches libpq default. |  
|   trust_input    boolean    added in 0.2.0 of community.general    |   
  |    If   no, check whether a value of session_role is potentially dangerous.It makes sense to use   no only when SQL injections via session_role are possible. |  
Notes
Note
- The default authentication assumes that you are either logging in as or sudo’ing to the 
postgresaccount on the host. - To avoid “Peer authentication failed for user postgres” error, use postgres user as a become_user.
 - This module uses psycopg2, a Python PostgreSQL database adapter. You must ensure that psycopg2 is installed on the host before using this module.
 - If the remote host is the PostgreSQL server (which is the default case), then PostgreSQL must also be installed on the remote host.
 - For Ubuntu-based systems, install the postgresql, libpq-dev, and python-psycopg2 packages on the remote host before using this module.
 - The ca_cert parameter requires at least Postgres version 8.4 and psycopg2 version 2.4.3.
 
See Also
See also
- community.general.postgresql_db
 - 
The official documentation on the community.general.postgresql_db module.
 - PostgreSQL Schema reference
 - 
Complete reference of the PostgreSQL schema documentation.
 
Examples
- name: Simple select query to acme db
  community.general.postgresql_query:
    db: acme
    query: SELECT version()
- name: Select query to db acme with positional arguments and non-default credentials
  community.general.postgresql_query:
    db: acme
    login_user: django
    login_password: mysecretpass
    query: SELECT * FROM acme WHERE id = %s AND story = %s
    positional_args:
    - 1
    - test
- name: Select query to test_db with named_args
  community.general.postgresql_query:
    db: test_db
    query: SELECT * FROM test WHERE id = %(id_val)s AND story = %(story_val)s
    named_args:
      id_val: 1
      story_val: test
- name: Insert query to test_table in db test_db
  community.general.postgresql_query:
    db: test_db
    query: INSERT INTO test_table (id, story) VALUES (2, 'my_long_story')
- name: Run queries from SQL script using UTF-8 client encoding for session
  community.general.postgresql_query:
    db: test_db
    path_to_script: /var/lib/pgsql/test.sql
    positional_args:
    - 1
    encoding: UTF-8
- name: Example of using autocommit parameter
  community.general.postgresql_query:
    db: test_db
    query: VACUUM
    autocommit: yes
- name: >
    Insert data to the column of array type using positional_args.
    Note that we use quotes here, the same as for passing JSON, etc.
  community.general.postgresql_query:
    query: INSERT INTO test_table (array_column) VALUES (%s)
    positional_args:
    - '{1,2,3}'
# Pass list and string vars as positional_args
- name: Set vars
  ansible.builtin.set_fact:
    my_list:
    - 1
    - 2
    - 3
    my_arr: '{1, 2, 3}'
- name: Select from test table by passing positional_args as arrays
  community.general.postgresql_query:
    query: SELECT * FROM test_array_table WHERE arr_col1 = %s AND arr_col2 = %s
    positional_args:
    - '{{ my_list }}'
    - '{{ my_arr|string }}'
# Select from test table looking into app1 schema first, then,
# if the schema doesn't exist or the table hasn't been found there,
# try to find it in the schema public
- name: Select from test using search_path
  community.general.postgresql_query:
    query: SELECT * FROM test_array_table
    search_path:
    - app1
    - public
   Return Values
Common return values are documented here, the following are the fields unique to this module:
| Key | Returned | Description | 
|---|---|---|
|   query    string    |  always |   Executed query.  When reading several queries from a file, it contains only the last one.  Sample:  SELECT * FROM bar   |  
|   query_all_results    list / elements=list    |  always |   List containing results of all queries executed (one sublist for every query). Useful when reading several queries from a file.  Sample:  [[{'Column': 'Value1'}, {'Column': 'Value2'}], [{'Column': 'Value1'}, {'Column': 'Value2'}]]   |  
|   query_list    list / elements=string    |  always |   List of executed queries. Useful when reading several queries from a file.  Sample:  ['SELECT * FROM foo', 'SELECT * FROM bar']   |  
|   query_result    list / elements=dictionary    |  always |   List of dictionaries in column:value form representing returned rows.  When running queries from a file, returns result of the last query.  Sample:  [{'Column': 'Value1'}, {'Column': 'Value2'}]   |  
|   rowcount    integer    |  changed |   Number of produced or affected rows.  When using a script with multiple queries, it contains a total number of produced or affected rows.  Sample:  5   |  
|   statusmessage    string    |  always |   Attribute containing the message returned by the command.  When reading several queries from a file, it contains a message of the last one.  Sample:  INSERT 0 1   |  
Authors
- Felix Archambault (@archf)
 - Andrew Klychkov (@Andersson007)
 - Will Rouesnel (@wrouesnel)
 
    © 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
    https://docs.ansible.com/ansible/2.10/collections/community/general/postgresql_query_module.html