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Add "--exclude-extension" to pg_dump's options. 

This option (or equivalently specifying "exclude extension pattern" in
a filter file) allows extensions matching the specified pattern to be
excluded from the dump.

Ayush Vatsa, reviewed by Junwang Zhao, Dean Rasheed, and Daniel
Gustafsson.

Discussion: https://postgr.es/m/CACX+KaP=VgVy9h-EUh598DTu+-fNr1jyEmpghC8rRp9s=w33Kg@mail.gmail.com
This commit is contained in:
Dean Rasheed 2024-03-20 08:05:44 +00:00
parent d63d486d6c
commit 522ed12f7c
3 changed files with 139 additions and 16 deletions
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34
doc/src/sgml/ref/pg_dump.sgml
View File

@ -256,6 +256,27 @@ PostgreSQL documentation
</listitem>
</varlistentry>
<varlistentry>
<term><option>--exclude-extension=<replaceable class="parameter">pattern</replaceable></option></term>
<listitem>
<para>
Do not dump any extensions matching <replaceable
class="parameter">pattern</replaceable>. The pattern is
interpreted according to the same rules as for <option>-e</option>.
<option>--exclude-extension</option> can be given more than once to exclude extensions
matching any of several patterns.
</para>
<para>
When both <option>-e</option> and <option>--exclude-extension</option> are given, the behavior
is to dump just the extensions that match at least one <option>-e</option>
switch but no <option>--exclude-extension</option> switches. If <option>--exclude-extension</option>
appears without <option>-e</option>, then extensions matching <option>--exclude-extension</option> are
excluded from what is otherwise a normal dump.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-E <replaceable class="parameter">encoding</replaceable></option></term>
<term><option>--encoding=<replaceable class="parameter">encoding</replaceable></option></term>
@ -848,10 +869,11 @@ PostgreSQL documentation
<option>--exclude-table-and-children</option> or
<option>-T</option> for tables,
<option>-n</option>/<option>--schema</option> for schemas,
<option>--include-foreign-data</option> for data on foreign servers and
<option>--include-foreign-data</option> for data on foreign servers,
<option>--exclude-table-data</option>,
<option>--exclude-table-data-and-children</option> for table data,
<option>-e</option>/<option>--extension</option> for extensions.
<option>--exclude-table-data-and-children</option> for table data, and
<option>-e</option>/<option>--extension</option> or
<option>--exclude-extension</option> for extensions.
To read from <literal>STDIN</literal>, use <filename>-</filename> as the
filename. The <option>--filter</option> option can be specified in
conjunction with the above listed options for including or excluding
@ -874,8 +896,7 @@ PostgreSQL documentation
<listitem>
<para>
<literal>extension</literal>: extensions, works like the
<option>--extension</option> option. This keyword can only be
used with the <literal>include</literal> keyword.
<option>-e</option>/<option>--extension</option> option.
</para>
</listitem>
<listitem>
@ -1278,7 +1299,8 @@ PostgreSQL documentation
</para>
<para>
This option has no effect
on <option>-N</option>/<option>--exclude-schema</option>,
on <option>--exclude-extension</option>,
<option>-N</option>/<option>--exclude-schema</option>,
<option>-T</option>/<option>--exclude-table</option>,
or <option>--exclude-table-data</option>. An exclude pattern failing
to match any objects is not considered an error.

33
src/bin/pg_dump/pg_dump.c
View File

@ -136,6 +136,9 @@ static SimpleOidList foreign_servers_include_oids = {NULL, NULL};
static SimpleStringList extension_include_patterns = {NULL, NULL};
static SimpleOidList extension_include_oids = {NULL, NULL};
static SimpleStringList extension_exclude_patterns = {NULL, NULL};
static SimpleOidList extension_exclude_oids = {NULL, NULL};
static const CatalogId nilCatalogId = {0, 0};
/* override for standard extra_float_digits setting */
@ -437,6 +440,7 @@ main(int argc, char **argv)
{"exclude-table-data-and-children", required_argument, NULL, 14},
{"sync-method", required_argument, NULL, 15},
{"filter", required_argument, NULL, 16},
{"exclude-extension", required_argument, NULL, 17},
{NULL, 0, NULL, 0}
};
@ -672,6 +676,11 @@ main(int argc, char **argv)
read_dump_filters(optarg, &dopt);
break;
case 17: /* exclude extension(s) */
simple_string_list_append(&extension_exclude_patterns,
optarg);
break;
default:
/* getopt_long already emitted a complaint */
pg_log_error_hint("Try \"%s --help\" for more information.", progname);
@ -890,6 +899,10 @@ main(int argc, char **argv)
if (extension_include_oids.head == NULL)
pg_fatal("no matching extensions were found");
}
expand_extension_name_patterns(fout, &extension_exclude_patterns,
&extension_exclude_oids,
false);
/* non-matching exclusion patterns aren't an error */
/*
* Dumping LOs is the default for dumps where an inclusion switch is not
@ -1095,6 +1108,7 @@ help(const char *progname)
printf(_(" -c, --clean clean (drop) database objects before recreating\n"));
printf(_(" -C, --create include commands to create database in dump\n"));
printf(_(" -e, --extension=PATTERN dump the specified extension(s) only\n"));
printf(_(" --exclude-extension=PATTERN do NOT dump the specified extension(s)\n"));
printf(_(" -E, --encoding=ENCODING dump the data in encoding ENCODING\n"));
printf(_(" -n, --schema=PATTERN dump the specified schema(s) only\n"));
printf(_(" -N, --exclude-schema=PATTERN do NOT dump the specified schema(s)\n"));
@ -2028,6 +2042,12 @@ selectDumpableExtension(ExtensionInfo *extinfo, DumpOptions *dopt)
extinfo->dobj.dump = extinfo->dobj.dump_contains =
dopt->include_everything ?
DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE;
/* check that the extension is not explicitly excluded */
if (extinfo->dobj.dump &&
simple_oid_list_member(&extension_exclude_oids,
extinfo->dobj.catId.oid))
extinfo->dobj.dump = extinfo->dobj.dump_contains = DUMP_COMPONENT_NONE;
}
}
@ -18265,6 +18285,15 @@ processExtensionTables(Archive *fout, ExtensionInfo extinfo[],
curext->dobj.catId.oid))
continue;
/*
* Check if this extension is listed as to exclude in the dump. If
* yes, any table data associated with it is discarded.
*/
if (extension_exclude_oids.head != NULL &&
simple_oid_list_member(&extension_exclude_oids,
curext->dobj.catId.oid))
continue;
if (strlen(extconfig) != 0 || strlen(extcondition) != 0)
{
int j;
@ -18965,7 +18994,6 @@ read_dump_filters(const char *filename, DumpOptions *dopt)
case FILTER_OBJECT_TYPE_FUNCTION:
case FILTER_OBJECT_TYPE_INDEX:
case FILTER_OBJECT_TYPE_TRIGGER:
case FILTER_OBJECT_TYPE_EXTENSION:
case FILTER_OBJECT_TYPE_FOREIGN_DATA:
pg_log_filter_error(&fstate, _("%s filter for \"%s\" is not allowed"),
"exclude",
@ -18973,6 +19001,9 @@ read_dump_filters(const char *filename, DumpOptions *dopt)
exit_nicely(1);
break;
case FILTER_OBJECT_TYPE_EXTENSION:
simple_string_list_append(&extension_exclude_patterns, objname);
break;
case FILTER_OBJECT_TYPE_TABLE_DATA:
simple_string_list_append(&tabledata_exclude_patterns,
objname);

88
src/test/modules/test_pg_dump/t/001_base.pl
View File

@ -220,6 +220,19 @@ my %pgdump_runs = (
'--extension=test_pg_dump', 'postgres',
],
},
exclude_extension => {
dump_cmd => [
'pg_dump', '--no-sync', "--file=$tempdir/exclude_extension.sql",
'--exclude-extension=test_pg_dump', 'postgres',
],
},
exclude_extension_filter => {
dump_cmd => [
'pg_dump', '--no-sync',
"--file=$tempdir/exclude_extension_filter.sql",
"--filter=$tempdir/exclude_extension_filter.txt", 'postgres',
],
},
# plpgsql in the list blocks the dump of extension test_pg_dump
without_extension => {
@ -299,6 +312,8 @@ my %full_runs = (
no_owner => 1,
privileged_internals => 1,
with_extension => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1);
my %tests = (
@ -325,7 +340,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { binary_upgrade => 1, without_extension => 1 },
unlike => {
binary_upgrade => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1
},
},
'CREATE ROLE regress_dump_test_role' => {
@ -434,7 +454,11 @@ my %tests = (
section_data => 1,
extension_schema => 1,
},
unlike => { without_extension => 1, },
unlike => {
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
'CREATE TABLE regress_pg_dump_table' => {
@ -460,6 +484,8 @@ my %tests = (
unlike => {
binary_upgrade => 1,
exclude_table => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
@ -483,7 +509,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { no_privs => 1, without_extension => 1, },
unlike => {
no_privs => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
'REVOKE GRANT OPTION FOR UPDATE ON SEQUENCE wgo_then_regular' => {
@ -500,7 +531,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { no_privs => 1, without_extension => 1, },
unlike => {
no_privs => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
'CREATE ACCESS METHOD regress_test_am' => {
@ -520,7 +556,11 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { without_extension => 1, },
unlike => {
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
'GRANT SELECT regress_pg_dump_table_added pre-ALTER EXTENSION' => {
@ -545,7 +585,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { no_privs => 1, without_extension => 1, },
unlike => {
no_privs => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
'GRANT SELECT ON TABLE regress_pg_dump_table' => {
@ -579,7 +624,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { no_privs => 1, without_extension => 1 },
unlike => {
no_privs => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1
},
},
'GRANT USAGE ON regress_pg_dump_table_col1_seq TO regress_dump_test_role'
@ -595,7 +645,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { no_privs => 1, without_extension => 1, },
unlike => {
no_privs => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
'GRANT USAGE ON regress_pg_dump_seq TO regress_dump_test_role' => {
@ -617,7 +672,12 @@ my %tests = (
schema_only => 1,
section_pre_data => 1,
},
unlike => { no_privs => 1, without_extension => 1, },
unlike => {
no_privs => 1,
exclude_extension => 1,
exclude_extension_filter => 1,
without_extension => 1,
},
},
# Objects included in extension part of a schema created by this extension */
@ -818,6 +878,16 @@ foreach my $test (
# Send the combined set of commands to psql
$node->safe_psql('postgres', $create_sql);
#########################################
# Create filter file for exclude_extension_filter test
my $filterfile;
open $filterfile, '>', "$tempdir/exclude_extension_filter.txt"
or die "unable to open filter file for writing";
print $filterfile "exclude extension test_pg_dump\n";
close $filterfile;
#########################################
# Run all runs