Support obtaining schema name in trigger functions

expected/trigger.out

@@ -61,6 +61,16 @@ NOTICE:  plphp: trigger: trigtest8 table: trigfunc_table, level: ROW event: AFTE
 NOTICE:  plphp: trigger: trigtest8 table: trigfunc_table, level: ROW event: AFTER DELETE old val: 2
 NOTICE:  plphp: trigger: trigtest8 table: trigfunc_table, level: ROW event: AFTER DELETE old val: 2
 NOTICE:  plphp: trigger: trigtest11 table: trigfunc_table, level: STATEMENT event: AFTER DELETE
+-- Do we get the schema?
+CREATE FUNCTION trigfunc2() RETURNS trigger LANGUAGE plphp AS $$
+	$extra = "";
+
+	pg_raise('notice', "schema: ${_TD['schemaname']} table: ${_TD['relname']}");
+$$;
+create schema "the schema" create table "the table" (a int);
+create trigger trig2test after insert on "the schema"."the table" for each row execute procedure trigfunc2();
+insert into "the schema"."the table" values (4);
+NOTICE:  plphp: schema: the schema table: the table
 -- Add an additional attribute to NEW
 CREATE FUNCTION trigfunc_test1() RETURNS trigger LANGUAGE plphp AS $$
 	$_TD['new']['a'] = 'foo';

plphp.c

@@ -752,6 +752,7 @@ plphp_trig_build_args(FunctionCallInfo fcinfo)
 	add_assoc_string(retval, "name", tdata->tg_trigger->tgname, 1);
     add_assoc_long(retval, "relid", tdata->tg_relation->rd_id);
 	add_assoc_string(retval, "relname", SPI_getrelname(tdata->tg_relation), 1);
+	add_assoc_string(retval, "schemaname", SPI_getnspname(tdata->tg_relation), 1);
 
 	/* EVENT */
 	if (TRIGGER_FIRED_BY_INSERT(tdata->tg_event))

sql/trigger.sql

@@ -44,6 +44,17 @@ update trigfunc_table set a = 2 where a = 1;
 
 delete from trigfunc_table where a = 2;
 
+-- Do we get the schema?
+CREATE FUNCTION trigfunc2() RETURNS trigger LANGUAGE plphp AS $$
+	$extra = "";
+
+	pg_raise('notice', "schema: ${_TD['schemaname']} table: ${_TD['relname']}");
+$$;
+
+create schema "the schema" create table "the table" (a int);
+create trigger trig2test after insert on "the schema"."the table" for each row execute procedure trigfunc2();
+insert into "the schema"."the table" values (4);
+
 -- Add an additional attribute to NEW
 CREATE FUNCTION trigfunc_test1() RETURNS trigger LANGUAGE plphp AS $$
 	$_TD['new']['a'] = 'foo';