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Commita5cf808

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Read include/exclude commands for dump/restore from file
When there is a need to filter multiple tables with include and/or excludeoptions it's quite possible to run into the limitations of the commandline.This adds a --filter=FILENAME feature to pg_dump, pg_dumpall and pg_restorewhich is used to supply a file containing object exclude/include commandswhich work just like their commandline counterparts. The format of the fileis one command per row like: <command> <object> <objectpattern><command> can be "include" or "exclude", <object> can be table_data, indextable_data_and_children, database, extension, foreign_data, function, tableschema, table_and_children or trigger.This patch has gone through many revisions and design changes over a longperiod of time, the list of reviewers reflect reviewers of some version ofthe patch, not necessarily the final version.Patch by Pavel Stehule with some additional hacking by me.Author: Pavel Stehule <pavel.stehule@gmail.com>Reviewed-by: Justin Pryzby <pryzby@telsasoft.com>Reviewed-by: vignesh C <vignesh21@gmail.com>Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>Reviewed-by: Tomas Vondra <tomas.vondra@enterprisedb.com>Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>Reviewed-by: Erik Rijkers <er@xs4all.nl>Discussion:https://postgr.es/m/CAFj8pRB10wvW0CC9Xq=1XDs=zCQxer3cbLcNZa+qiX4cUH-G_A@mail.gmail.com
1 parent15c9ac3 commita5cf808

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‎doc/src/sgml/ref/pg_dump.sgml

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@@ -836,6 +836,109 @@ PostgreSQL documentation
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--filter=<replaceable class="parameter">filename</replaceable></option></term>
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<listitem>
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<para>
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Specify a filename from which to read patterns for objects to include
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or exclude from the dump. The patterns are interpreted according to the
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same rules as the corresponding options:
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<option>-t</option>/<option>--table</option>,
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<option>--table-and-children</option>,
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<option>--exclude-table-and-children</option> or
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<option>-T</option> for tables,
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<option>-n</option>/<option>--schema</option> for schemas,
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<option>--include-foreign-data</option> for data on foreign servers and
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<option>--exclude-table-data</option>,
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<option>--exclude-table-data-and-children</option> for table data,
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<option>-e</option>/<option>--extension</option> for extensions.
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To read from <literal>STDIN</literal>, use <filename>-</filename> as the
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filename. The <option>--filter</option> option can be specified in
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conjunction with the above listed options for including or excluding
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objects, and can also be specified more than once for multiple filter
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files.
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</para>
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<para>
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The file lists one object pattern per row, with the following format:
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<synopsis>
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{ include | exclude } { extension | foreign_data | table | table_and_children | table_data | table_data_and_children | schema } <replaceable class="parameter">PATTERN</replaceable>
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</synopsis>
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</para>
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<para>
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The first keyword specifies whether the objects matched by the pattern
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are to be included or excluded. The second keyword specifies the type
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of object to be filtered using the pattern:
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<itemizedlist>
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<listitem>
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<para>
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<literal>extension</literal>: extensions, works like the
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<option>--extension</option> option. This keyword can only be
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used with the <literal>include</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>foreign_data</literal>: data on foreign servers, works like
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the <option>--include-foreign-data</option> option. This keyword can
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only be used with the <literal>include</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>table</literal>: tables, works like the
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<option>-t</option>/<option>--table</option> option.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>table_and_children</literal>: tables including any partitions
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or inheritance child tables, works like the
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<option>--table-and-children</option> option.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>table_data</literal>: table data of any tables matching
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<replaceable>pattern</replaceable>, works like the
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<option>--exclude-table-data</option> option. This keyword can only
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be used with the <literal>exclude</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>table_data_and_children</literal>: table data of any tables
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matching <replaceable>pattern</replaceable> as well as any partitions
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or inheritance children of the table(s), works like the
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<option>--exclude-table-data-and-children</option> option. This
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keyword can only be used with the <literal>exclude</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>schema</literal>: schemas, works like the
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<option>-n</option>/<option>--schema</option> option.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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<para>
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Lines starting with <literal>#</literal> are considered comments and
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ignored. Comments can be placed after an object pattern row as well.
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Blank lines are also ignored. See <xref linkend="app-psql-patterns"/>
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for how to perform quoting in patterns.
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</para>
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<para>
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Example files are listed below in the <xref linkend="pg-dump-examples"/>
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section.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--if-exists</option></term>
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<listitem>
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schema (<option>-n</option>/<option>--schema</option>) and
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table (<option>-t</option>/<option>--table</option>) pattern
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match at least one extension/schema/table in the database to be dumped.
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This also applies to filters used with <option>--filter</option>.
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Note that if none of the extension/schema/table patterns find
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matches, <application>pg_dump</application> will generate an error
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even without <option>--strict-names</option>.
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<screen>
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<prompt>$</prompt> <userinput>pg_dump -t "\"MixedCaseName\"" mydb &gt; mytab.sql</userinput>
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</screen></para>
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<para>
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To dump all tables whose names start with <literal>mytable</literal>, except
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for table <literal>mytable2</literal>, specify a filter file
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<filename>filter.txt</filename> like:
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<programlisting>
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include table mytable*
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exclude table mytable2
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</programlisting>
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<screen>
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<prompt>$</prompt> <userinput>pg_dump --filter=filter.txt mydb &gt; db.sql</userinput>
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</screen></para>
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</refsect1>

‎doc/src/sgml/ref/pg_dumpall.sgml

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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--filter=<replaceable class="parameter">filename</replaceable></option></term>
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<listitem>
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<para>
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Specify a filename from which to read patterns for databases excluded
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from the dump. The patterns are interpreted according to the same rules
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as <option>--exclude-database</option>.
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To read from <literal>STDIN</literal>, use <filename>-</filename> as the
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filename. The <option>--filter</option> option can be specified in
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conjunction with <option>--exclude-database</option> for excluding
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databases, and can also be specified more than once for multiple filter
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files.
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</para>
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<para>
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The file lists one database pattern per row, with the following format:
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<synopsis>
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exclude database <replaceable class="parameter">PATTERN</replaceable>
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</synopsis>
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</para>
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<para>
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Lines starting with <literal>#</literal> are considered comments and
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ignored. Comments can be placed after an object pattern row as well.
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Blank lines are also ignored. See <xref linkend="app-psql-patterns"/>
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for how to perform quoting in patterns.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-g</option></term>
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<term><option>--globals-only</option></term>

‎doc/src/sgml/ref/pg_restore.sgml

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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>--filter=<replaceable class="parameter">filename</replaceable></option></term>
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<listitem>
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<para>
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Specify a filename from which to read patterns for objects excluded
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or included from restore. The patterns are interpreted according to the
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same rules as
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<option>-n</option>/<option>--schema</option> for including objects in schemas,
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<option>-N</option>/<option>--exclude-schema</option>for excluding objects in schemas,
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<option>-P</option>/<option>--function</option> for restoring named functions,
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<option>-I</option>/<option>--index</option> for restoring named indexes,
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<option>-t</option>/<option>--table</option> for restoring named tables
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or <option>-T</option>/<option>--trigger</option> for restoring triggers.
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To read from <literal>STDIN</literal>, use <filename>-</filename> as the
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filename. The <option>--filter</option> option can be specified in
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conjunction with the above listed options for including or excluding
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objects, and can also be specified more than once for multiple filter
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files.
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</para>
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<para>
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The file lists one database pattern per row, with the following format:
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<synopsis>
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{ include | exclude } { function | index | schema | table | trigger } <replaceable class="parameter">PATTERN</replaceable>
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</synopsis>
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</para>
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<para>
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The first keyword specifies whether the objects matched by the pattern
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are to be included or excluded. The second keyword specifies the type
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of object to be filtered using the pattern:
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<itemizedlist>
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<listitem>
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<para>
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<literal>function</literal>: functions, works like the
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<option>-P</option>/<option>--function</option> option. This keyword
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can only be used with the <literal>include</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>index</literal>: indexes, works like the
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<option>-I</option>/<option>--indexes</option> option. This keyword
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can only be used with the <literal>include</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>schema</literal>: schemas, works like the
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<option>-n</option>/<option>--schema</option> and
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<option>-N</option>/<option>--exclude-schema</option> options.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>table</literal>: tables, works like the
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<option>-t</option>/<option>--table</option> option. This keyword
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can only be used with the <literal>include</literal> keyword.
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</para>
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</listitem>
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<listitem>
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<para>
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<literal>trigger</literal>: triggers, works like the
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<option>-T</option>/<option>--trigger</option> option. This keyword
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can only be used with the <literal>include</literal> keyword.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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<para>
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Lines starting with <literal>#</literal> are considered comments and
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ignored. Comments can be placed after an object pattern row as well.
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Blank lines are also ignored. See <xref linkend="app-psql-patterns"/>
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for how to perform quoting in patterns.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>-F <replaceable class="parameter">format</replaceable></option></term>
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<term><option>--format=<replaceable class="parameter">format</replaceable></option></term>

‎src/bin/pg_dump/Makefile

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@@ -32,6 +32,7 @@ OBJS = \
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compress_none.o\
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compress_zstd.o\
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dumputils.o\
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filter.o\
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parallel.o\
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pg_backup_archiver.o\
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pg_backup_custom.o\
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pg_restore: pg_restore.o$(OBJS) | submake-libpq submake-libpgport submake-libpgfeutils
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$(CC)$(CFLAGS) pg_restore.o$(OBJS)$(LDFLAGS)$(LDFLAGS_EX)$(LIBS) -o$@$(X)
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pg_dumpall: pg_dumpall.o dumputils.o$(WIN32RES) | submake-libpq submake-libpgport submake-libpgfeutils
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$(CC)$(CFLAGS) pg_dumpall.o dumputils.o$(WIN32RES)$(LDFLAGS)$(LDFLAGS_EX)$(LIBS) -o$@$(X)
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pg_dumpall: pg_dumpall.o dumputils.ofilter.o$(WIN32RES) | submake-libpq submake-libpgport submake-libpgfeutils
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$(CC)$(CFLAGS) pg_dumpall.o dumputils.ofilter.o$(WIN32RES)$(LDFLAGS)$(LDFLAGS_EX)$(LIBS) -o$@$(X)
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install: all installdirs
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$(INSTALL_PROGRAM) pg_dump$(X)'$(DESTDIR)$(bindir)'/pg_dump$(X)

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