[JBoss JIRA] Created: (TEIID-867) Possibly Teiid embedded clients (Designer) not pinging query engine, causing session timeouts
by Paul Nittel (JIRA)
Possibly Teiid embedded clients (Designer) not pinging query engine, causing session timeouts
---------------------------------------------------------------------------------------------
Key: TEIID-867
URL: https://jira.jboss.org/jira/browse/TEIID-867
Project: Teiid
Issue Type: Bug
Environment: fedora 10, Teiid Designer 6.2
Reporter: Paul Nittel
Assignee: Steven Hawkins
I started the Teiid 6.2 Designer, executed a VDB and ran a simple query. Then I waited about 35 minutes and finally clicked the Running Dude(tm) button. Instead of nicely arranged rows of data, I got:
Error 2009-09-30 14:41:48.107 Error processing query
com.metamatrix.jdbc.MMSQLException: Error trying to execute a statement select IntKey, StringKey, IntNum, StringNum, FloatNum, LongNum, DoubleNum, ByteNum, DateValue, TimeValue, TimestampValue, BooleanValue, CharValue, ShortValue, BigIntegerValue, BigDecimalValue, ObjectValue from "SP"."BQT2.SmallA"
.
at com.metamatrix.jdbc.MMSQLException.create(MMSQLException.java:116)
at com.metamatrix.jdbc.MMStatement.executeSql(MMStatement.java:414)
at com.metamatrix.jdbc.MMStatement.execute(MMStatement.java:318)
at net.sourceforge.sqlexplorer.sqlpanel.SqlExecProgress.processQuery(SqlExecProgress.java:192)
at net.sourceforge.sqlexplorer.sqlpanel.SqlExecProgress.run(SqlExecProgress.java:121)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: com.metamatrix.jdbc.MMSQLException: The specified session ID "2" is invalid. It cannot be found in the userbase.
at com.metamatrix.jdbc.MMSQLException.create(MMSQLException.java:123)
at com.metamatrix.jdbc.MMSQLException.create(MMSQLException.java:71)
at com.metamatrix.jdbc.MMStatement.sendRequestMessageAndWait(MMStatement.java:855)
at com.metamatrix.jdbc.MMStatement.executeSql(MMStatement.java:410)
... 4 more
Caused by: [MetaMatrixComponentException]The specified session ID "2" is invalid. It cannot be found in the userbase.
1 [InvalidSessionException]The specified session ID "2" is invalid. It cannot be found in the userbase.
at com.metamatrix.client.ExceptionUtil.convertException(ExceptionUtil.java:59)
at org.teiid.transport.LocalServerConnection$1.invoke(LocalServerConnection.java:119)
at $Proxy24.executeRequest(Unknown Source)
at com.metamatrix.jdbc.MMStatement.sendRequestMessageAndWait(MMStatement.java:853)
... 5 more
Caused by: [InvalidSessionException]The specified session ID "2" is invalid. It cannot be found in the userbase.
at com.metamatrix.platform.security.session.service.SessionServiceImpl.getSessionInfo(SessionServiceImpl.java:295)
at com.metamatrix.platform.security.session.service.SessionServiceImpl.validateSession(SessionServiceImpl.java:287)
at org.teiid.transport.LocalServerConnection$1.invoke(LocalServerConnection.java:109)
... 7 more
The session timeout property is commented out in the workspace.properties file.
Steve Hawkins opined the embedded clients ae not pinging the server.
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15 years, 6 months
[JBoss JIRA] Created: (TEIID-754) LOCATE() function isn't being translated correctly by Oracle Connector
by Larry O'Leary (JIRA)
LOCATE() function isn't being translated correctly by Oracle Connector
----------------------------------------------------------------------
Key: TEIID-754
URL: https://jira.jboss.org/jira/browse/TEIID-754
Project: Teiid
Issue Type: Bug
Components: JDBC Connector
Affects Versions: 6.1.0, 6.0.0, 6.2.0
Reporter: Larry O'Leary
Assignee: Larry O'Leary
Fix For: 6.2.0
The rewritten/translated query for the MMx LOCATE() function to Oracle's instr() function does not appear to be correct.
SELECT locate(INTNUM, '234567890', 1) FROM SMALLA WHERE INTKEY = 26
Is being rewritten for Oracle as:
SELECT instr('234567890', to_char(SmallA.IntNum), 2) FROM SmallA WHERE SmallA.IntKey = 26
In this case Oracle will return 0 for instr() because Oracle starts at position 1.
The query should be:
SELECT instr('234567890', to_char(SmallA.IntNum), 1) FROM SmallA WHERE SmallA.IntKey = 26
Furthermore, if I pass a negative value to LOCATE() it appears we assume position 1. If the negative value is sent to Oracle, Oracle goes from the end of the string. We should prevent this (if not already).
In 5.5.1 the rewritten query is even different and may ore may not be correct. I have not checked 5.5.3/5.5.4 and/or Westport/Teiid.
Here are the test cases that should cover this issue:
public void testRewriteLocate() throws Exception {
String input = "SELECT locate(INTNUM, 'chimp', 1) FROM SMALLA"; //$NON-NLS-1$
String output = "SELECT instr('chimp', to_char(SmallA.IntNum), 1) FROM SmallA"; //$NON-NLS-1$
helpTestVisitor(getTestVDBPath(),
input,
new Integer(TranslatedCommand.EXEC_TYPE_QUERY),
output);
}
public void testRewriteLocate2() throws Exception {
String input = "SELECT locate(STRINGNUM, 'chimp') FROM SMALLA"; //$NON-NLS-1$
String output = "SELECT instr('chimp', SmallA.StringNum) FROM SmallA"; //$NON-NLS-1$
helpTestVisitor(getTestVDBPath(),
input,
new Integer(TranslatedCommand.EXEC_TYPE_QUERY),
output);
}
public void testRewriteLocate3() throws Exception {
String input = "SELECT locate(INTNUM, '234567890', 1) FROM SMALLA WHERE INTKEY = 26"; //$NON-NLS-1$
String output = "SELECT instr('234567890', to_char(SmallA.IntNum), 1) FROM SmallA WHERE SmallA.IntKey = 26"; //$NON-NLS-1$
helpTestVisitor(getTestVDBPath(),
input,
new Integer(TranslatedCommand.EXEC_TYPE_QUERY),
output);
}
public void testRewriteLocate4() throws Exception {
String input = "SELECT locate('c', 'chimp', 1) FROM SMALLA"; //$NON-NLS-1$
String output = "SELECT 1 FROM SmallA"; //$NON-NLS-1$
helpTestVisitor(getTestVDBPath(),
input,
new Integer(TranslatedCommand.EXEC_TYPE_QUERY),
output);
}
public void testRewriteLocate5() throws Exception {
String input = "SELECT locate(STRINGNUM, 'chimp', -5) FROM SMALLA"; //$NON-NLS-1$
String output = "SELECT instr('chimp', SmallA.StringNum, 1) FROM SmallA"; //$NON-NLS-1$
helpTestVisitor(getTestVDBPath(),
input,
new Integer(TranslatedCommand.EXEC_TYPE_QUERY),
output);
}
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15 years, 6 months
[JBoss JIRA] Created: (TEIID-739) JDBC Connector updates
by Steven Hawkins (JIRA)
JDBC Connector updates
----------------------
Key: TEIID-739
URL: https://jira.jboss.org/jira/browse/TEIID-739
Project: Teiid
Issue Type: Feature Request
Components: JDBC Connector
Affects Versions: 6.2.0
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 6.2.0
The PostgreSQL translator should assume the use of a 8.0 jdbc client (supports back to the 7.2 server) so that we can remove DatePartFunctionModifer/ModifiedDatePartFunctionModifer also support for the bit functions should be added.
The SQL Server translator / capabilities should be updated to assume the use of a 2005, DataDirect, or later driver (all support back to sql server 2000) so that support for most of the time functions can be added.
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15 years, 6 months
[JBoss JIRA] Created: (TEIID-871) Refactor system vdb
by Steven Hawkins (JIRA)
Refactor system vdb
-------------------
Key: TEIID-871
URL: https://jira.jboss.org/jira/browse/TEIID-871
Project: Teiid
Issue Type: Sub-task
Components: Query Engine
Affects Versions: 6.3
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 6.3
1. We should remove the system physical model - it's undocumented, exposes too much metadata cruft, and requires too much logic in the index connector to support it.
2. We should remove System.datatypeelements and System.datatypeelementproperties - the transformations are invalid (they will always return no rows) and they are redundant
3. There should be a new system table ProcedureParamProperties that exposes annotations for procedure params.
with System.element/datatype and the corresponding properties tables.
4. This one is open to debate, but I would also like to remove System.describe - since annotations are available directly on the appropriate type table, there doesn't seem to be a good reason to introduce a procedure that operates over all metadata records to return the same information.
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15 years, 6 months
[JBoss JIRA] Created: (TEIID-741) SQL Server type hadling issues
by Steven Hawkins (JIRA)
SQL Server type hadling issues
------------------------------
Key: TEIID-741
URL: https://jira.jboss.org/jira/browse/TEIID-741
Project: Teiid
Issue Type: Bug
Components: JDBC Connector
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Steven Hawkins
Fix For: 6.2.0
If we pushdown a convert(stringvalue, char) function, it turns into the source expression convert(char, stringvalue), which has the following problems: it defaults to type char(30) which is right padded, it is not trimmed since the target type was Char and the trim logic looks only for String. Also it does not account for empty string mapping to null.
The SQL Server tinyint type is unsigned. Our import needs to be modified to this to short, since our byte type is unsigned. Pushing down a convert(numericvalue, byte) as convert(tinyint, numericvalue) is problematic if the byte values are stored in a signed manner.
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15 years, 6 months