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Add --exclude-table-data option to pg_dump.

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Andrew Dunstan, reviewed by Josh Berkus, Robert Haas and Peter Geoghegan.

This allows dumping of a table definition but not its data, on a per table basis.
Table name patterns are supported just as for --exclude-table.
This commit is contained in:
Andrew Dunstan 2011-12-14 09:23:17 -05:00
parent 4adead1d22
commit 7b070e896c
3 changed files with 48 additions and 0 deletions
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22
doc/src/sgml/ref/pg_dump.sgml
View File

@ -404,6 +404,10 @@ PostgreSQL documentation
<para>
Dump only the object definitions (schema), not data.
</para>
<para>
To exclude table data for only a subset of tables in the database,
see <option>--exclude-table-data</>.
</para>
</listitem>
</varlistentry>
@ -611,6 +615,24 @@ PostgreSQL documentation
</listitem>
</varlistentry>
<varlistentry>
<term><option>--exclude-table-data=<replaceable class="parameter">table</replaceable></option></term>
<listitem>
<para>
Do not dump data for any tables matching the <replaceable
class="parameter">table</replaceable> pattern. The pattern is
interpreted according to the same rules as for <option>-t</>.
<option>--exclude-table-data</> can be given more than once to
exclude tables matching any of several patterns. This option is
useful when you need the definition of a particular table even
though you do not need the data in it.
</para>
<para>
To exclude data for all tables in the database, see <option>--schema-only</>.
<para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--inserts</option></term>
<listitem>

25
src/bin/pg_dump/pg_dump.c
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@ -115,6 +115,8 @@ static SimpleStringList table_include_patterns = {NULL, NULL};
static SimpleOidList table_include_oids = {NULL, NULL};
static SimpleStringList table_exclude_patterns = {NULL, NULL};
static SimpleOidList table_exclude_oids = {NULL, NULL};
static SimpleStringList tabledata_exclude_patterns = {NULL, NULL};
static SimpleOidList tabledata_exclude_oids = {NULL, NULL};
/* default, if no "inclusion" switches appear, is to dump everything */
static bool include_everything = true;
@ -324,6 +326,7 @@ main(int argc, char **argv)
{"column-inserts", no_argument, &column_inserts, 1},
{"disable-dollar-quoting", no_argument, &disable_dollar_quoting, 1},
{"disable-triggers", no_argument, &disable_triggers, 1},
{"exclude-table-data", required_argument, NULL, 4},
{"inserts", no_argument, &dump_inserts, 1},
{"lock-wait-timeout", required_argument, NULL, 2},
{"no-tablespaces", no_argument, &outputNoTablespaces, 1},
@ -487,6 +490,10 @@ main(int argc, char **argv)
use_role = optarg;
break;
case 4: /* exclude table(s) data */
simple_string_list_append(&tabledata_exclude_patterns, optarg);
break;
default:
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
exit(1);
@ -715,6 +722,10 @@ main(int argc, char **argv)
}
expand_table_name_patterns(&table_exclude_patterns,
&table_exclude_oids);
expand_table_name_patterns(&tabledata_exclude_patterns,
&tabledata_exclude_oids);
/* non-matching exclusion patterns aren't an error */
/*
@ -854,6 +865,7 @@ help(const char *progname)
printf(_(" --column-inserts dump data as INSERT commands with column names\n"));
printf(_(" --disable-dollar-quoting disable dollar quoting, use SQL standard quoting\n"));
printf(_(" --disable-triggers disable triggers during data-only restore\n"));
printf(_(" --exclude-table-data=TABLE do NOT dump data for the named table(s)\n"));
printf(_(" --inserts dump data as INSERT commands, rather than COPY\n"));
printf(_(" --no-security-labels do not dump security label assignments\n"));
printf(_(" --no-tablespaces do not dump tablespace assignments\n"));
@ -1087,6 +1099,15 @@ selectDumpableTable(TableInfo *tbinfo)
simple_oid_list_member(&table_exclude_oids,
tbinfo->dobj.catId.oid))
tbinfo->dobj.dump = false;
/* If table is to be dumped, check that the data is not excluded */
if (tbinfo->dobj.dump && !
simple_oid_list_member(&tabledata_exclude_oids,
tbinfo->dobj.catId.oid))
tbinfo->dobj.dumpdata = true;
else
tbinfo->dobj.dumpdata = false;
}
/*
@ -1518,6 +1539,10 @@ dumpTableData(Archive *fout, TableDataInfo *tdinfo)
DataDumperPtr dumpFn;
char *copyStmt;
/* don't do anything if the data isn't wanted */
if (!tbinfo->dobj.dumpdata)
return;
if (!dump_inserts)
{
/* Dump/restore using COPY */

1
src/bin/pg_dump/pg_dump.h
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@ -129,6 +129,7 @@ typedef struct _dumpableObject
char *name; /* object name (should never be NULL) */
struct _namespaceInfo *namespace; /* containing namespace, or NULL */
bool dump; /* true if we want to dump this object */
bool dumpdata; /* true if we want data for this object */
bool ext_member; /* true if object is member of extension */
DumpId *dependencies; /* dumpIds of objects this one depends on */
int nDeps; /* number of valid dependencies */