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Add ALTER TABLE ENABLE/DISABLE TRIGGER commands. Change pg_dump to

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use these instead of its previous hack of changing pg_class.reltriggers.
Documentation is lacking, will add that later.
Patch by Satoshi Nagayasu, review and some extra work by Tom Lane.
This commit is contained in:
Tom Lane
2005-08-23 22:40:47 +00:00
parent d086da4bb1
commit 188c7c8ccf
9 changed files with 255 additions and 56 deletions
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19
src/bin/pg_dump/pg_dump.c
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@@ -12,7 +12,7 @@
* by PostgreSQL
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.418 2005/08/15 21:50:15 tgl Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.419 2005/08/23 22:40:31 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -3350,6 +3350,7 @@ getTriggers(TableInfo tblinfo[], int numTables)
i_tgconstrname,
i_tgconstrrelid,
i_tgconstrrelname,
i_tgenabled,
i_tgdeferrable,
i_tginitdeferred;
int ntups;
@@ -3381,7 +3382,7 @@ getTriggers(TableInfo tblinfo[], int numTables)
appendPQExpBuffer(query,
"SELECT tgname, "
"tgfoid::pg_catalog.regproc as tgfname, "
"tgtype, tgnargs, tgargs, "
"tgtype, tgnargs, tgargs, tgenabled, "
"tgisconstraint, tgconstrname, tgdeferrable, "
"tgconstrrelid, tginitdeferred, tableoid, oid, "
"tgconstrrelid::pg_catalog.regclass as tgconstrrelname "
@@ -3398,7 +3399,7 @@ getTriggers(TableInfo tblinfo[], int numTables)
{
appendPQExpBuffer(query,
"SELECT tgname, tgfoid::regproc as tgfname, "
"tgtype, tgnargs, tgargs, "
"tgtype, tgnargs, tgargs, tgenabled, "
"tgisconstraint, tgconstrname, tgdeferrable, "
"tgconstrrelid, tginitdeferred, tableoid, oid, "
"(select relname from pg_class where oid = tgconstrrelid) "
@@ -3411,7 +3412,7 @@ getTriggers(TableInfo tblinfo[], int numTables)
{
appendPQExpBuffer(query,
"SELECT tgname, tgfoid::regproc as tgfname, "
"tgtype, tgnargs, tgargs, "
"tgtype, tgnargs, tgargs, tgenabled, "
"tgisconstraint, tgconstrname, tgdeferrable, "
"tgconstrrelid, tginitdeferred, "
"(SELECT oid FROM pg_class WHERE relname = 'pg_trigger') AS tableoid, "
@@ -3449,6 +3450,7 @@ getTriggers(TableInfo tblinfo[], int numTables)
i_tgconstrname = PQfnumber(res, "tgconstrname");
i_tgconstrrelid = PQfnumber(res, "tgconstrrelid");
i_tgconstrrelname = PQfnumber(res, "tgconstrrelname");
i_tgenabled = PQfnumber(res, "tgenabled");
i_tgdeferrable = PQfnumber(res, "tgdeferrable");
i_tginitdeferred = PQfnumber(res, "tginitdeferred");
@@ -3468,6 +3470,7 @@ getTriggers(TableInfo tblinfo[], int numTables)
tginfo[j].tgnargs = atoi(PQgetvalue(res, j, i_tgnargs));
tginfo[j].tgargs = strdup(PQgetvalue(res, j, i_tgargs));
tginfo[j].tgisconstraint = *(PQgetvalue(res, j, i_tgisconstraint)) == 't';
tginfo[j].tgenabled = *(PQgetvalue(res, j, i_tgenabled)) == 't';
tginfo[j].tgdeferrable = *(PQgetvalue(res, j, i_tgdeferrable)) == 't';
tginfo[j].tginitdeferred = *(PQgetvalue(res, j, i_tginitdeferred)) == 't';
@@ -7874,6 +7877,14 @@ dumpTrigger(Archive *fout, TriggerInfo *tginfo)
}
appendPQExpBuffer(query, ");\n");
if (!tginfo->tgenabled)
{
appendPQExpBuffer(query, "\nALTER TABLE %s ",
fmtId(tbinfo->dobj.name));
appendPQExpBuffer(query, "DISABLE TRIGGER %s;\n",
fmtId(tginfo->dobj.name));
}
ArchiveEntry(fout, tginfo->dobj.catId, tginfo->dobj.dumpId,
tginfo->dobj.name,
tbinfo->dobj.namespace->dobj.name,