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nifi-templates/SampleKafka2Postgres.sql

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+create schema stg;
+
+CREATE TABLE stg.samplekafka2postgres (
+	dttm timestamptz NULL,
+	txt text NULL
+);
+
+
+create schema ods;
+
+CREATE TABLE ods.samplekafka2postgres (
+	id serial4 NOT NULL,
+	ins_dttm timestamptz default now() NOT NULL,
+	dttm timestamptz NULL,
+	txt text NULL,
+	CONSTRAINT samplekafka2postgres_pkey PRIMARY KEY (id)
+);
+
+create or replace procedure ods.load_samplekafka2postgres()
+language plpgsql 
+as $$
+begin 
+	-- перенос содержимого таблицы в ods полностью
+	insert into ods.samplekafka2postgres(dttm, txt)
+	select dttm, txt
+	from stg.samplekafka2postgres;
+
+	-- удаление делаем в процессе NiFi
+	-- delete from stg.samplekafka2postgres;
+
+	commit;
+end; $$;
+
+-- Примеры запросов
+select * from ods.samplekafka2postgres;
+
+delete from stg.samplekafka2postgres;
+delete from ods.samplekafka2postgres where ins_dttm < now() - interval '10 minute'; 
+
+select * from stg.samplekafka2postgres;
+select * from ods.samplekafka2postgres order by id desc;
+select count(*) from ods.samplekafka2postgres;