# Catalog queries for trigger
# CAUTION: Do not modify this file unless you know what you are doing.
# Code generation can be broken if incorrect changes are made.

%if {list} %then
	%set {parent-name} [ ns.nspname || '.' || tb.relname ]

	%if {use-signature} %then
		%set {signature} {parent-name} [ || '.' || ]
	%end

	[SELECT tg.oid, tgname AS name, ] {parent-name} [ AS parent, 'table' AS parent_type
	FROM pg_trigger AS tg
	LEFT JOIN pg_class AS tb ON tg.tgrelid = tb.oid AND relkind IN ('r','v','m','f')
	LEFT JOIN pg_namespace AS ns ON ns.oid = tb.relnamespace ]

	%if {schema} %then
		[ WHERE ns.nspname= ] '{schema}'

		%if {table} %then
			[ AND tb.relname=]'{table}'
		%end

		[ AND ]
	%else
		[ WHERE ]
	%end

	[ tgisinternal IS FALSE ]

	%if {last-sys-oid} %then
		[ AND tg.oid ] {oid-filter-op} $sp {last-sys-oid}
	%end

	%if {not-ext-object} %then
		[ AND ]( {not-ext-object} )
	%end

	%if {name-filter} %then
		[ AND ] ( {signature} [ tgname ~* ] E'{name-filter}' )
	%end

	%if {extra-condition} %then
		[ AND ] ( {extra-condition} )
	%end
%else
	%if {attribs} %then
		# pg_trigger.tgtype datails:
		# bit 0 -> FOR EACH ROW [1] | STATEMENT [0]
		# bit 1 -> AFTER [0] | BEFORE [1]
		# bit 2 -> INSERT
		# bit 3 -> DELETE
		# bit 4 -> UPDATE
		# bit 5 -> TRUNCATE
		# bit 6 -> INTEAD OF [1] (only for views)
		[ SELECT DISTINCT(tg.oid), tg.tgname AS name, tg.tgfoid AS trigger_func, tb.oid AS table,

		CASE
		WHEN tb.relkind = 'r' THEN 'table'
		WHEN tb.relkind = 'f' THEN 'foreigntable'
		WHEN tb.relkind = 'v' THEN 'view'
		WHEN tb.relkind = 'm' THEN 'view'
		END AS table_type,

		#Convert the arguments from bytea to a string array. The last element is always empty and can be discarded
		encode(tg.tgargs,'escape') AS arguments,

		it.action_condition AS condition,
		(B'0000001'::integer & tgtype = 1) AS per_line_bool,
		(B'0000100'::integer & tgtype = 4) AS ins_event_bool,
		(B'0001000'::integer & tgtype = 8) AS del_event_bool,
		(B'0010000'::integer & tgtype = 16) AS upd_event_bool,
		(B'0100000'::integer & tgtype = 32) AS trunc_event_bool,
		tg.tgdeferrable AS deferrable_bool,
		(tg.tgconstraint > 0) AS constraint_bool,

		CASE
		WHEN B'0000010'::integer & tgtype = 2 THEN 'BEFORE'
		WHEN B'1000000'::integer & tgtype = 64 THEN 'INSTEAD OF'
		ELSE 'AFTER'
		END AS firing_type,

		CASE tg.tginitdeferred
		WHEN TRUE THEN 'INITIALLY DEFERRED'
		ELSE 'INITIALLY IMMEDIATE'
		END AS defer_type,

		CASE
		WHEN (tg.tgconstraint > 0) THEN
		regexp_replace(regexp_replace(pg_get_triggerdef(tg.oid), '(.)+((INSERT|DELETE|UPDATE)|( OF))', ''), '( ON)(.)*','')
		ELSE NULL
		END AS columns, 

		tgoldtable AS old_table_name, tgnewtable AS new_table_name, ]

		({comment}) [ AS comment ]

		[ FROM pg_trigger AS tg
		LEFT JOIN pg_constraint AS cs ON tg.tgconstraint = cs.oid
		LEFT JOIN pg_class AS tb ON tg.tgrelid = tb.oid
		LEFT JOIN pg_namespace AS ns ON ns.oid = tb.relnamespace
		LEFT JOIN information_schema.triggers AS it ON
		it.trigger_schema=ns.nspname AND
		it.trigger_name=tg.tgname AND
		it.event_object_table=tb.relname
		WHERE tg.tgisinternal IS FALSE ]

		%if {schema} %then
			[ AND ns.nspname= ] '{schema}'

			%if {table} %then
				[ AND tb.relname=]'{table}'
			%end
		%end

		%if {last-sys-oid} %then
			[ AND tg.oid ] {oid-filter-op} $sp {last-sys-oid}
		%end

		%if {filter-oids} %then
			[ AND tg.oid IN (] {filter-oids} )
		%end

		%if {not-ext-object} %then
			[ AND ]( {not-ext-object} )
		%end
	%end
%end
