[
https://issues.jboss.org/browse/TEIID-3994?page=com.atlassian.jira.plugin...
]
Steve Tran commented on TEIID-3994:
-----------------------------------
Query which throws the AliasSymbol wrapping AliasSymbol wrapping AliasSymbol exception.
Might be hard to follow, but all it's doing is an insert into SQL Server View SELECT
from Oracle View.
{code}
insert into Control.SQLServer_VBL.HSI_TEST_VIRTUALFIELD (TEST_ID, TEST_NBR, TEST_DT,
TEST_STR, TEST_INT_NBR)
SELECT TEST_ID, TEST_NBR, TEST_DT, TEST_STR, TEST_INT_NBR FROM
Control.Oracle2_VBL.HSI_TEST where test_id = 1050783767;
{code}
Select Trigger on Control.SQLServer_VBL.HSI_TEST_VIRTUALFIELD
{code}
SELECT
TEST_ID, TEST_NBR, TEST_DT, TEST_STR, TEST_INT_NBR, TEST_TS, 1 AS VirtField1,
'Steve' AS VirtField2
FROM
SQL_Server_Cdtssql587D_KF.HSI_TEST
{code}
Insertion Trigger Control.SQLServer_VBL.HSI_TEST_VIRTUALFIELD
{code}
FOR EACH ROW
BEGIN ATOMIC
INSERT INTO SQL_Server_Cdtssql587D_KF.HSI_TEST
(SQL_Server_Cdtssql587D_KF.HSI_TEST.TEST_ID, SQL_Server_Cdtssql587D_KF.HSI_TEST.TEST_NBR,
SQL_Server_Cdtssql587D_KF.HSI_TEST.TEST_DT, SQL_Server_Cdtssql587D_KF.HSI_TEST.TEST_STR,
SQL_Server_Cdtssql587D_KF.HSI_TEST.TEST_INT_NBR,
SQL_Server_Cdtssql587D_KF.HSI_TEST.TEST_TS) VALUES ("NEW".TEST_ID,
"NEW".TEST_NBR, "NEW".TEST_DT, "NEW".TEST_STR,
"NEW".TEST_INT_NBR, "NEW".TEST_TS);
END
{code}
See screenshots for descriptions of "tableA" and "tableB"
AliasSymbol wrapping AliasSymbol error
--------------------------------------
Key: TEIID-3994
URL:
https://issues.jboss.org/browse/TEIID-3994
Project: Teiid
Issue Type: Bug
Affects Versions: 8.7.1.6_2
Environment: Red Hat JBoss Data Virtualization 6.2 on EAP6.4.0 patched to version
6.4.3,
JBoss Developer Studio 8.1.0GA with Teiid Designer plugin
9.0.3.Final.v20150810-1438-B1157
64-bit Windows 7 environment
Reporter: Steve Tran
Assignee: Steven Hawkins
Attachments: Oracle.PNG, SQLServer.PNG
I've defined a view and overrode the default triggers for Select, Insert, Update, and
Delete. I overrode the triggers because the select is returning "hardcoded"
values for a few fields (calling them virtual columns). The Update and Insert triggers
will ignore these hardcoded values just in case the caller tries to update a virtual
column.
I'm trying to run a insert into <tableA> select * from <tableB> query.
When I run this, I get an error org.teiid.jdbc.TeiidSQLException: Cannot create
AliasSymbol wrapping AliasSymbol.
Facts:
-- I can insert a record if I only select one column from tableB.
-- If I select two or more columns, it throws the error every time.
-- If I remove the overridden triggers, the insert into <tableA> select * from
<tableB> works fine.
-- I can insert one or more columns into <tableA> when *not* using a insert into
<tableA> select * from <tableB> query
-- Table A is Oracle
-- Table B is SQL Server
My hunch is the generated query (hibernate, or whatever SQL generator) is choking with
the overridden trigger. Perhaps this use-case slipped through testing, or even more
probable, I made a mistake in the trigger creation.
Here's a snip of the insert trigger, with a lot of fields removed for simplicity.
{code}
FOR EACH ROW
BEGIN ATOMIC
INSERT INTO <schema>.<tableA> (SourceSystemID, RecordTypeID, BatchID ...)
VALUES (
convert("NEW".SourceSystemID, short),
convert("NEW".RecordTypeID, short),
convert("NEW".BatchID, integer)
...
)
END
{code}
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