mirror of https://github.com/citusdata/citus.git
62 lines
1.5 KiB
PL/PgSQL
62 lines
1.5 KiB
PL/PgSQL
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create or replace function trs_before() returns trigger language plpgsql as $$
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BEGIN
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RAISE NOTICE 'BEFORE STATEMENT %', TG_OP;
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RETURN NULL;
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END;
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$$;
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create or replace function trs_after() returns trigger language plpgsql as $$
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DECLARE
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r RECORD;
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BEGIN
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RAISE NOTICE 'AFTER STATEMENT %', TG_OP;
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IF (TG_OP = 'DELETE') THEN
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FOR R IN select * from old_table
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LOOP
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RAISE NOTICE ' (%)', r.i;
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END LOOP;
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ELSE
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FOR R IN select * from new_table
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LOOP
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RAISE NOTICE ' (%)', r.i;
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END LOOP;
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END IF;
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RETURN NULL;
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END;
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$$;
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create or replace function trr_before() returns trigger language plpgsql as $$
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BEGIN
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RAISE NOTICE 'BEFORE ROW %: (%)', TG_OP, NEW.i;
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RETURN NEW;
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END;
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$$;
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create or replace function trr_after() returns trigger language plpgsql as $$
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BEGIN
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RAISE NOTICE 'AFTER ROW %: (%)', TG_OP, NEW.i;
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RETURN NEW;
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END;
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$$;
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create table test_tr(i int) using cstore_tableam;
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create trigger tr_before_stmt before insert on test_tr
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for each statement execute procedure trs_before();
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create trigger tr_after_stmt after insert on test_tr
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referencing new table as new_table
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for each statement execute procedure trs_after();
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create trigger tr_before_row before insert on test_tr
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for each row execute procedure trr_before();
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-- after triggers require TIDs, which are not supported yet
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create trigger tr_after_row after insert on test_tr
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for each row execute procedure trr_after();
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insert into test_tr values(1);
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insert into test_tr values(2),(3),(4);
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drop table test_tr;
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