[teiid-issues] [JBoss JIRA] (TEIID-5033) Couchbase substring function is 0-based

[RH Bugzilla Integration (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-5033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated TEIID-5033:
-------------------------------------------
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1484912
        Bugzilla Update: Perform


> Couchbase substring function is 0-based
> ---------------------------------------
>
>                 Key: TEIID-5033
>                 URL: https://issues.jboss.org/browse/TEIID-5033
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.12.x-6.4
>            Reporter: Jan Stastny
>            Assignee: Steven Hawkins
>
> There is difference in SUBSTRING function handling in Teiid and Couchbase.
> Teiid handling:
> {code:sql|title=query1}
> SELECT SUBSTRING('49',1)
> {code}
> || expr1 ||
> || 49 ||
> Couchbase pushdown:
> {code:sql|title=query2}
> SELECT SUBSTRING(IntKey,1) FROM BQT1.SmallA WHERE IntKey=49
> {code}
> || expr1 ||
> || 9 ||
> {code:title=teiid-command.log}
> 16:04:32,385 INFO  [org.teiid.COMMAND_LOG] (New I/O worker #2) QE2ZpDa/Btt5     START USER COMMAND: startTime=2017-08-24 16:04:32.385       requestID=QE2ZpDa/Btt5.116    txID=null sessionID=QE2ZpDa/Btt5        applicationName=JDBC          principal=user at teiid-security vdbName=couchbase   vdbVersion=1        sql=SELECT SUBSTRING(IntKey,1) FROM BQT1.SmallA WHERE IntKey=49
> 16:04:32,390 DEBUG [org.teiid.COMMAND_LOG] (Worker35_QueryProcessorQueue325) QE2ZpDa/Btt5           START DATA SRC COMMAND:       startTime=2017-08-24 16:04:32.39        requestID=QE2ZpDa/Btt5.116    sourceCommandID=0   executionID=79      txID=null modelName=Couchbase_small     translatorName=couchbase      sessionID=QE2ZpDa/Btt5        principal=user at teiid-security sql=SELECT SUBSTRING(convert(Couchbase_small.SmallA.IntKey, string), 1) FROM Couchbase_small.SmallA WHERE Couchbase_small.SmallA.IntKey = 49
> 16:04:32,391 DEBUG [org.teiid.COMMAND_LOG] (Worker35_QueryProcessorQueue325) QE2ZpDa/Btt5           SOURCE SRC COMMAND: endTime=2017-08-24 16:04:32.391         requestID=QE2ZpDa/Btt5.116    sourceCommandID=0   executionID=79      txID=null modelName=Couchbase_small     translatorName=couchbase      sessionID=QE2ZpDa/Btt5        principal=user at teiid-security sourceCommand=[SELECT SUBSTR(TOSTRING(`$cb_c1_IntKey`), 1) FROM `dvqe_small` `$cb_t1` LET `$cb_c1_IntKey` = `$cb_t1`.`IntKey` WHERE `$cb_c1_IntKey` = 49 AND `$cb_t1`.`type` = 'SmallA'] 
> 16:04:32,607 DEBUG [org.teiid.COMMAND_LOG] (Worker34_QueryProcessorQueue326) QE2ZpDa/Btt5           END SRC COMMAND:    endTime=2017-08-24 16:04:32.607         requestID=QE2ZpDa/Btt5.116    sourceCommandID=0   executionID=79      txID=null modelName=Couchbase_small     translatorName=couchbase      sessionID=QE2ZpDa/Btt5        principal=user at teiid-security finalRowCount=1     cpuTime(ns)=1689816
> 16:04:32,610 INFO  [org.teiid.COMMAND_LOG] (Worker34_QueryProcessorQueue327) QE2ZpDa/Btt5           END USER COMMAND:   endTime=2017-08-24 16:04:32.61          requestID=QE2ZpDa/Btt5.116    txID=null sessionID=QE2ZpDa/Btt5        principal=user at teiid-security vdbName=couchbase   vdbVersion=1        finalRowCount=1
> {code}



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