插入视图中不返回主键

我已将POCO映射到视图。当EF确实插入，它生成以下命令插入视图中不返回主键

INSERT INTO "public"."vw_place"("Name","Description","Point") VALUES ($1,$2,$3) RETURNING "PlaceId"

但代码，引发以下错误...

{“空存储生成的值被用于返回非空的成员类型的“PlaceId 'DataAccess.Place'。”}

这里是触发功能，做插入...

CREATE OR REPLACE FUNCTION vw_place_dml() 
    RETURNS trigger AS 
$BODY$ 
        BEGIN 
         IF TG_OP = 'INSERT' THEN 

         INSERT INTO tbl_place 
         (
         "Name", 
         "Description", 
         "Point" 
        ) 
        VALUES 
        (
         NEW."Name", 
         NEW."Description", 
         ST_GeomFromWKB(NEW."Point", 4326) 
        ); 

          RETURN NEW; 

          ELSIF TG_OP = 'UPDATE' THEN 

          UPDATE tbl_place SET 
         "PlaceId" = NEW."PlaceId", 
         "Name" = NEW."Name", 
         "Description" = NEW."Description", 
         "Point" = ST_GeomFromWKB(NEW."Point", 4326) 
        WHERE 
         "PlaceId" = OLD."PlaceId"; 

          RETURN NEW; 

          END IF; 
          RETURN NEW; 
          END; 
       $BODY$ 
    LANGUAGE plpgsql VOLATILE 
    COST 100; 
ALTER FUNCTION vw_place_dml() 
    OWNER TO postgres;

如果我在pgAdmin中运行它，它不会返回任何内容，这是问题，但行已成功插入并生成了PlaceId。

INSERT INTO "public"."vw_place"("Name","Description","Point") VALUES 
('ergw','regr','\x0101000000000000009846b2bfe4e068d7ff33a73f') 

RETURNING "PlaceId"

来源

2016-06-29 Ian Warburton

在触发功能插入后和RETURN NEW;之前，我加...

NEW."PlaceId" = currval('"tbl_place_PlaceId_seq"');

来源

2016-06-29 14:37:39

不知道这是并发安全。在Sql Server中不是。 Doens't Postgresql有相当于SS的'Scope_Identity'功能吗？ –

我认为就是这样。它在这里说currval，https://www.postgresql.org/docs/8.2/static/functions-sequence.html，“请注意，因为这是返回一个会话本地值，它给出了一个可预测的答案，无论其他自本届会议以来，会议已经执行了nextval。“ –

插入视图中不返回主键

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