Upgrade to Scientific Linux 6.5 x86_64 breaks query

Using PostgreSQL 9.1.3; JDBC3 driver (tried several versions-- all suffer from the same issue); MyBatis 2.3.5 

We're migrating our app to a virtualized 64bit Linux server from a virtualized 32bit Linux server, same farm. What
workedfine on 32bit Scientific Linux breaks on 64bit... Same JVM version (although we tried 64 and 32 bit JVM both with
sameissue). We've done our best to make sure the ONLY thing different is the 64bit OS. Hitting the same 9.1.3 back
end...

We've been sifting through everything and we can't conceive of what could possibly cause this problem. Also, this query
runsfine on other platforms. 

Maybe you can see something I can't:

10:02:40.596 (2)  <=BE ReadyForQuery(I)
10:02:40.601 (2) simple execute, handler=org.postgresql.jdbc2.AbstractJdbc2Statement$StatementResultHandler@1792d2c,
maxRows=0,fetchSize=0, flags=1 
10:02:40.601 (2)  FE=> Bind(stmt=S_1,portal=null)
10:02:40.601 (2)  FE=> Execute(portal=null,limit=0)
10:02:40.601 (2)  FE=> Parse(stmt=null,query="      select    t_uuid as t_uuid,    last(latitude) as latitude,
last(longitude)as longitude,    last(trans_date) as trans_date,    last(speed) as speed,    last(direction) as
direction,   last(revision) as revision   from (       SELECT     trans_date,     t_uuid,     latitude,     longitude,
  speed,     direction,     revision    FROM     t_vectors    WHERE     group_uuid = $1     and trans_date between
now()- $2 and now()                       AND       t_uuid in        (        $3       ,        $4       ,        $5
  ,        $6       ,        $7       ,        $8       ,        $9       ,        $10       ,        $11       ,
$12       ,        $13       ,        $14       ,        $15       ,        $16       ,        $17       ,        $18
   ,        $19       ,        $20       ,        $21       ,        $22       ,        $23       ,        $24       ,
     $25       ,     
    $26       ,        $27       ,        $28       ,        $29       ,        $30       ,        $31       ,
$32      ,        $33       ,        $34       ,        $35       ,        $36       ,        $37       ,        $38
  ,        $39       ,        $40       ,        $41       ,        $42       ,        $43       ,        $44       ,
    $45       ,        $46       ,        $47       ,        $48       ,        $49       )               order by
trans_dateasc       ) foo   group by    t_uuid
",oids={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0})
10:02:40.601 (2)  FE=> Bind(stmt=null,portal=null,$1=<394fa90e-75a3-4dd1-9205-341409bcba4b>,$2=<0 years 0 mons 0 days 1
hours0 mins 0.00 

secs>,$3=<cdd1aa29-48ae-4a8d-884f-43ea795defde>,$4=<3552acd6-e294-4d88-bd67-a856b4f5965c>,$5=<881d0513-37b9-4935-8051-b66552bada74>,$6=<fa21ec58-47e7-478a-b8b0-42a937200e70>,$7=<ec909e6b-c214-4fbe-aea0-9baf4a33b54a>,$8=<13c75de7-1e73-4dcd-906b-cee83ee0212e>,$9=<362d4c76-c09d-4e4f-8c05-821e9d46ba83>,$10=<76e02c3d-c108-443a-9cb3-6a1e138f00c6>,$11=<dbc8ee6d-b04d-4f48-90a3-b2a2bbd5de6e>,$12=<197c368a-669c-4d44-867b-6382726bae99>,$13=<8ae1f446-8364-4061-a89e-0058735cd35a>,$14=<fd148cc9-4b13-4773-9b7b-d5f2d1ca3a00>,$15=<7a4777eb-3767-43f8-9d67-f1caf3eff2b4>,$16=<f526b7ee-7823-4e4b-8bd5-dca091ca6aea>,$17=<8f4c2594-b368-43d2-8a27-8af24dc92512>,$18=<10ad0508-9eca-47e3-96f5-99745fbdcede>,$19=<112944c7-eef0-49c3-af79-9b54b484ca0c>,$20=<da94401d-10c5-4607-9b09-fa2202bba846>,$21=<ce9a4ddd-3c47-4bb9-af55-4d0c6c0600f8>,$22=<3448505e-b740-4084-891e-e2ff34c3754f>,$23=<8a3b486d-5e41-46e1-99fa-51f4f38af2fa>,$24=<a3260ac3-3811-4857-95a6-2cbcd1f8119b>,$25=<12a70091-0853-44

99-8f05-d80e3045ce5e>,$26=<e21a63e8-2835-4942-9a9e-18e1310a74e6>,$27=<5b41b6cb-de51-40ff-8488-7f3403b1f0a8>,$28=<83a3fe9b-cfb5-4908-b5fb-5b32a7be5eb1>,$29=<0a963150-eea0-4396-aa2a-9319ca9c9866>,$30=<0346505e-98be-4585-aeea-3b38df4a56a2>,$31=<069bf54d-c230-4bef-884b-46e54e28c65e>,$32=<8286bd41-ccd1-47bd-a1aa-1631d3ccbd56>,$33=<f7a3f9e2-e94b-4ff7-8b03-4e8549be07cb>,$34=<72f2af01-c359-45f9-bb20-37c7479869f3>,$35=<0143076a-3f9e-487d-bdec-c1a6a110f748>,$36=<2bc64e73-c771-43c8-aa83-b11059512a0f>,$37=<a5b56133-7cd2-476d-bde6-1b8af68bc265>,$38=<3c43a0dd-292a-44cc-a097-ab2f77757d25>,$39=<8b84e953-d6a9-42ae-9caa-481c164354db>,$40=<26d842b6-71e2-438f-a147-e18d102d21d5>,$41=<f588610a-507a-4c4c-93bb-a6466ed140ba>,$42=<d5a145c8-f8bd-486f-a0d7-f897715915c5>,$43=<bd0ed505-27e8-43b4-be4e-664adc98a38c>,$44=<b0948960-11b7-4bca-9d9c-4f8d7b91962c>,$45=<70d2924f-c8cb-4594-a67b-261ca300406e>,$46=<60ad8ae8-4722-4a02-8d4f-88a0052299fc>,$47=<350558cc-e56f-4fb2-86f8-3d3252b56bce>
,$48=<de7259b4-e1c8-481c-9043-46f09a0926de>,$49=<2e5ecda2-bfdd-400a-a48a-e08e07d4ced4>)
10:02:40.602 (2)  FE=> Describe(portal=null)
10:02:40.602 (2)  FE=> Execute(portal=null,limit=0)
10:02:40.602 (2)  FE=> Sync
10:02:40.604 (2)  <=BE BindComplete [null]
10:02:40.604 (2)  <=BE CommandStatus(BEGIN)
10:02:40.607 (2)  <=BE ErrorMessage(ERROR: operator does not exist: timestamp with time zone >= interval
  Hint: No operator matches the given name and argument type(s). You might need to add explicit type casts.
  Position: 410)
org.postgresql.util.PSQLException: ERROR: operator does not exist: timestamp with time zone >= interval
  Hint: No operator matches the given name and argument type(s). You might need to add explicit type casts.
  Position: 410
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327)
        at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:343)
        at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172)
        at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.execute(DelegatingPreparedStatement.java:172)
        at com.ibatis.sqlmap.engine.execution.DefaultSqlExecutor.executeQuery(DefaultSqlExecutor.java:183)
        at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
        at
com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
        at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForList(MappedStatement.java:139)
        at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:578)
        at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:552)
        at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
        at com.foo.service.db.ibatis.lib.SqlMapExecutor.queryForList(SqlMapExecutor.java:139)
        at com.foo.service.db.ibatis.DepDaoIbatis.usersList(DepDaoIbatis.java:3352)
        at com.foo.util.Util.fetchSettings(Util.java:109)
        at com.foo.util.Util.fetchUpdates(Util.java:221)
        at com.foo.util.Util.fetchInit(Util.java:168)
        at com.foo.service.process.InitProcessor.process(InitProcessor.java:57)
        at com.foo.service.process.InitProcessor.process(InitProcessor.java:29)
        at com.foo.service.scaffolding.AbstractProcessor.process(AbstractProcessor.java:55)
        at com.foo.service.scaffolding.AbstractProcessor.process(AbstractProcessor.java:28)
        at com.restservice.process.AuthenticatedProcessor.process(AuthenticatedProcessor.java:38)
        at com.restservice.process.AuthenticatedProcessor.process(AuthenticatedProcessor.java:12)
        at com.restservice.process.SerializedProcessor.processRequest(SerializedProcessor.java:74)
        at com.restservice.process.SerializedProcessor.process(SerializedProcessor.java:59)
        at com.restservice.RestService.process(RestService.java:224)
        at com.restservice.RestService.processWrapper(RestService.java:122)
        at com.restservice.RestService.doPost(RestService.java:101)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at com.foo.util.GZIPFilter.doFilter(GZIPFilter.java:33)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
        at com.googlecode.psiprobe.Tomcat70AgentValve.invoke(Tomcat70AgentValve.java:38)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:662)