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Error:Linqpad TypedDataContext missing Fk refs, if db has many schemas with identical table names

edited June 6

Error: Linpad TypedDataContext missing Fk references when Db has multiple schemas with the same table names

Environment:

  • Windows 11 Pro
  • Linqpad 8.3.7
  • Oracle 23ai, autonomous database, serverless, hosted on OCI
  • Linqpad Db connection: Entity Framework Core (multi-provider) (built-in). Provider: Oracle 8.23.40, EF Core version: 8.0.3, see screenshot below.

Issue:

  • Linqpad is super cool, use it everyday, even weekends, thanks for progressing it :-)
  • Linpad TypedDataContext is missing Fk references in all but one of the schemas, when the Db has multiple schemas with identical table names (table names are the same, naturally the Schema names will differ). The tables only reference tables in the same schema.
  • Please note this was previously working correctly about a month ago.
  • For all schemas (except one at random, let's call this the ChosenSchema), the Fk references to entities are missing in the auto generated TypedDataContext and missing in the server explorer user interface.
  • In the ChosenSchema, Fks are shown and operating correctly.
  • Here is small example to show the concept, two schemas, with identical named tables:
MAIN.TB_LE6FPT_PERSON
MAIN.TB_LE6FPT_CLUB
PLAYGROUND2.TB_LE6FPT_PERSON
PLAYGROUND2.TB_LE6FPT_CLUB

Full Oracle Db script, to demonstrate the issue, (the prefix LE6FPT just to avoid name collisions on my server!):

drop table if exists MAIN.TB_LE6FPT_PERSON cascade constraints purge;
drop table if exists MAIN.TB_LE6FPT_CLUB cascade constraints purge;
drop table if exists MAIN.TB_LE6FPT_SKILL cascade constraints purge;

drop table if exists PLAYGROUND2.TB_LE6FPT_PERSON cascade constraints purge;
drop table if exists PLAYGROUND2.TB_LE6FPT_CLUB cascade constraints purge;
drop table if exists PLAYGROUND2.TB_LE6FPT_SKILL cascade constraints purge;
CREATE table MAIN.TB_LE6FPT_CLUB
(
   ID NUMBER(18) NOT NULL
      constraint PK_TB_LE6FPT_CLUB
         primary key,
   NOTES NVARCHAR2(100)

);

CREATE table MAIN.TB_LE6FPT_SKILL
(
   ID NUMBER(18) NOT NULL
      constraint PK_TB_LE6FPT_SKILL
         primary key,
   NOTES NVARCHAR2(100)
);

CREATE table MAIN.TB_LE6FPT_PERSON
(
   ID NUMBER(18) NOT NULL
      constraint PK_TB_LE6FPT_PERSON
         primary key,
   NOTES NVARCHAR2(100),
   TOP_SKILL_ID NUMBER(18)
      constraint FK_TB_LE6FPT_PERSON_TO_TB_LE6FPT_SKILL_TOP_SKILL_ID
         references MAIN.TB_LE6FPT_SKILL,

   FAV_CLUB_ID_A NUMBER(18)
      constraint FK_TB_LE6FPT_PERSON_TO_TB_LE6FPT_CLUB_FAV_CLUB_ID_A
         references MAIN.TB_LE6FPT_CLUB,
   FAV_CLUB_ID_B NUMBER(18)
      constraint FK_TB_LE6FPT_PERSON_TO_TB_LE6FPT_CLUB_FAV_CLUB_ID_B
         references MAIN.TB_LE6FPT_CLUB
);

-- PLAYGROUND2
CREATE table PLAYGROUND2.TB_LE6FPT_CLUB
(
   ID NUMBER(18) NOT NULL
      constraint PK_TB_LE6FPT_CLUB
         primary key,
   NOTES NVARCHAR2(100)

);

CREATE table PLAYGROUND2.TB_LE6FPT_SKILL
(
   ID NUMBER(18) NOT NULL
      constraint PK_TB_LE6FPT_SKILL
         primary key,
   NOTES NVARCHAR2(100)

);


CREATE table PLAYGROUND2.TB_LE6FPT_PERSON
(
   ID NUMBER(18) NOT NULL
      constraint PK_TB_LE6FPT_PERSON
         primary key,
   NOTES NVARCHAR2(100),
   TOP_SKILL_ID NUMBER(18)
      constraint FK_TB_LE6FPT_PERSON_TO_TB_LE6FPT_SKILL_TOP_SKILL_ID
         references PLAYGROUND2.TB_LE6FPT_SKILL,

   FAV_CLUB_ID_A NUMBER(18)
      constraint FK_TB_LE6FPT_PERSON_TO_TB_LE6FPT_CLUB_FAV_CLUB_ID_A
         references PLAYGROUND2.TB_LE6FPT_CLUB,
   FAV_CLUB_ID_B NUMBER(18)
      constraint FK_TB_LE6FPT_PERSON_TO_TB_LE6FPT_CLUB_FAV_CLUB_ID_B
         references PLAYGROUND2.TB_LE6FPT_CLUB
);

  • Attached screenshots:
  • Schema MAIN, working correctly:
  • Schema PLAYGROUND2, NOT working, FKs references are missing:
  • Db connection details"

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