delete binary records via sql problem in 2.1.15

Dear @luigidellaquila based on https://github.com/orientechnologies/orientdb/issues/5748 I’d tested it now in 2.1.15 when i was try to delete via delete from 15:0 command everything works well 👍

but when i was trying to delete record from a select that contains a linked field that contains row id of my blobs , delete not working yet : delete from (select Blob from FileItem) also when i try to write another kind query does not working and returns error delete from cluster:BlobStorage where @rid in (select Blob from FileItem) returns : java.lang.ClassCastException: com.orientechnologies.orient.core.record.impl.ORecordBytes cannot be cast to com.orientechnologies.orient.core.record.impl.ODocument

for clearing what was happened i tried to run select @rid from cluster:BlobStorage that returns nothing but when i run select from cluster:BlobStorage returns a binary record that have @ rid and @ version and a base64 encoded string field . i’m wondered now . is it a new bug ?

how can i delete binary record via a nested select where query ? please help me to write a true delete statement .

at the last : Actually i have an opinion for select from Binary Record in Select Command . *it’s better select from blobstorage returns record id and record bytes size for binary records . now select from blobstorage (binary records) returns nothing *

thnaks

[luigidellaquila]

Hi @saeedtabrizi

I just tried this on 2.2.x branch (but I think nothing changed since 2.2.6)

 @Test
  public void testBinaryClusterSelect3() {
    database.command(new OCommandSQL("create class testBinaryClusterSelect3")).execute();
    database.command(new OCommandSQL("create blob cluster testBinaryClusterSelect3_blob")).execute();
    database.reload();
    OBlob bytes = new ORecordBytes(new byte[]{1,2,3});
    database.save(bytes, "testBinaryClusterSelect3_blob");

    ODocument doc = new ODocument("testBinaryClusterSelect3");
    doc.field("Blob", bytes);
    doc.save();

    ODocument doc2 = new ODocument("testBinaryClusterSelect3");
    doc2.save();

    List<OIdentifiable> result = database.query(
        new OSQLSynchQuery<OIdentifiable>("select from cluster:testBinaryClusterSelect3_blob"));

    Assert.assertEquals(result.size(), 1);

    database.command(new OCommandSQL("delete from (select expand(Blob) from testBinaryClusterSelect3)")).execute();
    result = database.query(
        new OSQLSynchQuery<OIdentifiable>("select from cluster:testBinaryClusterSelect3_blob"));

    Assert.assertEquals(result.size(), 0);
  }

And it succeeds.

Which 2.2 are you using? Did you try with latest stable?

Thanks

Luigi

[tglman]

closing this, if there are some more issue please reopen