EF Core 3.19.80 Using Any And FirstOrDefault Generates Wrong Sql

Hi,

i have just upgraded all packages in my solutions and i have a strange bug. Some of my queries have exists filter. If i build the query like below, EF core generates 2 where statement in sql command text.

Query:

 IQueryable<TableEntity> query = unitOfWork.Context.Set<TableEntity>();
query = query.Where(q => unitOfWork.Context.GlEntityUsers.Any(t => t.RestrictedFlag == 0 && t.EntityCode == q.ChargeEntityCode));
query = query.Where(p => p.TransactionNo == TransactionNo);
var q1 = query.FirstOrDefault();

Generated Sql Where Statement:

WHERE (((EXISTS (
    SELECT `1`
    FROM "AVLOWN"."GL_ENTITY_USERS" "g2"
    WHERE (((("g2"."RESTRICTED_FLAG" = 0)) AND (("g2"."ENTITY_CODE" = "b"."CHARGE_ENTITY_CODE")))))) AND (("b"."TRANSACTION_NO" = :TransactionNo_0))))
where rownum <= 1 

If i remove Any filter, efcore generates correct command text.

 IQueryable<TableEntity> query = unitOfWork.Context.Set<TableEntity>();
query = query.Where(p => p.TransactionNo == TransactionNo);
var q1 = query.FirstOrDefault();

Generated Sql Where Statement:

WHERE ("b"."TRANSACTION_NO" = :TransactionNo_0)
and rownum <= 1 

is this a bug or am i doing something wrong?

[alexkeh]

I’ve reproduced the error. I filed bug 32081523 to track the issue and have a dev team member review it.

The SQL generated is related to Oracle DB 11.2 SQL syntax. If you change the SQL compatibility level from “11” to any DB server level higher, it will generate working SQL for your app. It’s the 11g type syntax that happens to be incorrectly generated. This is a workaround if you aren’t actually using an 11.2 DB.

[alexkeh]

Closing as DB 11.2 is generally out of support.