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SQLITE_TABLE(5)						       SQLITE_TABLE(5)

NAME
       sqlite_table - Postfix SQLite configuration

SYNOPSIS
       postmap -q "string" sqlite:/etc/postfix/filename

       postmap -q - sqlite:/etc/postfix/filename <inputfile

DESCRIPTION
       The  Postfix  mail system uses optional tables for address rewriting or
       mail routing. These tables are usually in dbm or db format.

       Alternatively, lookup tables can be specified as SQLite databases.   In
       order  to use SQLite lookups, define an SQLite source as a lookup table
       in main.cf, for example:
	   alias_maps = sqlite:/etc/sqlite-aliases.cf

       The file /etc/postfix/sqlite-aliases.cf has  the	 same  format  as  the
       Postfix main.cf file, and can specify the parameters described below.

BACKWARDS COMPATIBILITY
       For  compatibility  with other Postfix lookup tables, SQLite parameters
       can also be defined in main.cf.	In order to do that, specify as SQLite
       source  a  name	that  doesn't begin with a slash or a dot.  The SQLite
       parameters will then be accessible as the name you've given the	source
       in  its	definition, an underscore, and the name of the parameter.  For
       example, if the map is specified as "sqlite:sqlitename", the  parameter
       "query" below would be defined in main.cf as "sqlitename_query".

       Normally,  the  SQL  query  is  specified  via a single query parameter
       (described in more detail below).  When this parameter is not specified
       in  the map definition, Postfix reverts to an older interface, with the
       SQL query constructed from the  select_field,  table,  where_field  and
       additional_conditions  parameters.  The old interface will be gradually
       phased out. To migrate to the new interface set:

	   query = SELECT [select_field]
	       FROM [table]
	       WHERE [where_field] = '%s'
		   [additional_conditions]

       Insert the value, not the name, of each legacy parameter. Note that the
       additional_conditions  parameter	 is  optional  and  if not empty, will
       always start with AND.

LIST MEMBERSHIP
       When using SQL to store	lists  such  as	 $mynetworks,  $mydestination,
       $relay_domains,	$local_recipient_maps, etc., it is important to under‐
       stand that the table must store each list member as a separate key. The
       table  lookup  verifies	the *existence* of the key. See "Postfix lists
       versus tables" in the DATABASE_README document for a discussion.

       Do NOT create tables that return the full list of domains in  $mydesti‐
       nation or $relay_domains etc., or IP addresses in $mynetworks.

       DO create tables with each matching item as a key and with an arbitrary
       value. With SQL databases it is not uncommon to return the  key	itself
       or a constant value.

SQLITE PARAMETERS
       dbpath The SQLite database file location. Example:
		  dbpath = customer_database

       query  The  SQL query template used to search the database, where %s is
	      a substitute for the address Postfix is trying to resolve, e.g.
		  query = SELECT replacement FROM aliases WHERE mailbox = '%s'

	      This parameter supports the following '%' expansions:

	      %%     This is replaced by a literal '%' character.

	      %s     This is replaced by the input key.	 SQL quoting  is  used
		     to	 make  sure that the input key does not add unexpected
		     metacharacters.

	      %u     When the input key is an address of the form user@domain,
		     %u	 is  replaced  by  the	SQL  quoted  local part of the
		     address.  Otherwise, %u is replaced by the entire	search
		     string.   If  the	localpart  is empty, the query is sup‐
		     pressed and returns no results.

	      %d     When the input key is an address of the form user@domain,
		     %d	 is  replaced  by  the	SQL  quoted domain part of the
		     address.  Otherwise, the query is suppressed and  returns
		     no results.

	      %[SUD] The upper-case equivalents of the above expansions behave
		     in the query parameter identically	 to  their  lower-case
		     counter-parts.   With  the	 result_format	parameter (see
		     below), they expand the input key rather than the	result
		     value.

	      %[1-9] The  patterns  %1,	 %2, ... %9 are replaced by the corre‐
		     sponding most significant component of  the  input	 key's
		     domain.  If  the input key is user@mail.example.com, then
		     %1 is com, %2 is example and %3 is mail. If the input key
		     is	 unqualified or does not have enough domain components
		     to satisfy all the specified patterns, the query is  sup‐
		     pressed and returns no results.

	      The  domain  parameter  described below limits the input keys to
	      addresses in matching domains. When the domain parameter is non-
	      empty,  SQL  queries  for	 unqualified addresses or addresses in
	      non-matching domains are suppressed and return no results.

	      This parameter is available with Postfix 2.2. In prior  releases
	      the   SQL	  query	  was  built  from  the	 separate  parameters:
	      select_field, table, where_field and additional_conditions.  The
	      mapping from the old parameters to the equivalent query is:

		  SELECT [select_field]
		  FROM [table]
		  WHERE [where_field] = '%s'
			[additional_conditions]

	      The  '%s'	 in  the  WHERE	 clause	 expands to the escaped search
	      string.  With Postfix 2.2 these legacy parameters	 are  used  if
	      the query parameter is not specified.

	      NOTE: DO NOT put quotes around the query parameter.

       result_format (default: %s)
	      Format template applied to result attributes. Most commonly used
	      to append (or prepend) text to the result. This  parameter  sup‐
	      ports the following '%' expansions:

	      %%     This is replaced by a literal '%' character.

	      %s     This  is  replaced	 by the value of the result attribute.
		     When result is empty it is skipped.

	      %u     When the result attribute value is an address of the form
		     user@domain,  %u  is  replaced  by	 the local part of the
		     address. When the result has an  empty  localpart	it  is
		     skipped.

	      %d     When  a  result attribute value is an address of the form
		     user@domain, %d is replaced by the	 domain	 part  of  the
		     attribute	value.	When  the  result is unqualified it is
		     skipped.

	      %[SUD1-9]
		     The upper-case and decimal digit  expansions  interpolate
		     the  parts of the input key rather than the result. Their
		     behavior is identical to that described with  query,  and
		     in	 fact  because	the  input  key	 is  known in advance,
		     queries whose key does not contain	 all  the  information
		     specified	in  the	 result	 template  are	suppressed and
		     return no results.

	      For example, using "result_format = smtp:[%s]" allows one to use
	      a mailHost attribute as the basis of a transport(5) table. After
	      applying the result format, multiple values are concatenated  as
	      comma  separated	strings.  The  expansion_limit	and  parameter
	      explained below allows one to restrict the number of  values  in
	      the result, which is especially useful for maps that must return
	      at most one value.

	      The default value %s specifies that each result value should  be
	      used as is.

	      This parameter is available with Postfix 2.2 and later.

	      NOTE: DO NOT put quotes around the result format!

       domain (default: no domain list)
	      This is a list of domain names, paths to files, or dictionaries.
	      When specified, only fully qualified search keys	with  a	 *non-
	      empty*  localpart and a matching domain are eligible for lookup:
	      'user' lookups, bare domain lookups and  "@domain"  lookups  are
	      not  performed.  This can significantly reduce the query load on
	      the SQLite server.
		  domain = postfix.org, hash:/etc/postfix/searchdomains

	      It is best not to use SQL to store the domains eligible for  SQL
	      lookups.

	      This parameter is available with Postfix 2.2 and later.

	      NOTE: DO NOT define this parameter for local(8) aliases, because
	      the input keys are always unqualified.

       expansion_limit (default: 0)
	      A limit on the total number of result elements  returned	(as  a
	      comma separated list) by a lookup against the map.  A setting of
	      zero disables the limit. Lookups fail with a temporary error  if
	      the  limit  is  exceeded.	  Setting  the limit to 1 ensures that
	      lookups do not return multiple values.

OBSOLETE QUERY INTERFACE
       This section describes an interface that is deprecated  as  of  Postfix
       2.2.  It	 is  replaced  by  the	more general query interface described
       above.  If the  query  parameter	 is  defined,  the  legacy  parameters
       described  here	ignored.   Please  migrate to the new interface as the
       legacy interface may be removed in a future release.

       The following parameters can be used  to	 fill  in  a  SELECT  template
       statement of the form:

	   SELECT [select_field]
	   FROM [table]
	   WHERE [where_field] = '%s'
		 [additional_conditions]

       The specifier %s is replaced by the search string, and is escaped so if
       it contains single quotes or other odd characters, it will not cause  a
       parse error, or worse, a security problem.

       select_field
	      The SQL "select" parameter. Example:
		  select_field = forw_addr

       table  The SQL "select .. from" table name. Example:
		  table = mxaliases

       where_field
	      The SQL "select .. where" parameter. Example:
		  where_field = alias

       additional_conditions
	      Additional conditions to the SQL query. Example:
		  additional_conditions = AND status = 'paid'

SEE ALSO
       postmap(1), Postfix lookup table maintenance
       postconf(5), configuration parameters
       ldap_table(5), LDAP lookup tables
       mysql_table(5), MySQL lookup tables
       pgsql_table(5), PostgreSQL lookup tables

README FILES
       Use  "postconf readme_directory" or "postconf html_directory" to locate
       this information.
       DATABASE_README, Postfix lookup table overview
       SQLITE_README, Postfix SQLITE howto

LICENSE
       The Secure Mailer license must be distributed with this software.

HISTORY
       SQLite support was introduced with Postfix version 2.8.

AUTHOR(S)
       Original implementation by:
       Axel Steiner

							       SQLITE_TABLE(5)
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