June 2014 - teiid-issues - Jboss List Archives

[JBoss JIRA] (TEIID-2990) MongoDB: Usage of lookup() function throws an exception

by Filip Elias (JIRA)

Filip Elias created TEIID-2990: ---------------------------------- Summary: MongoDB: Usage of lookup() function throws an exception Key: TEIID-2990 URL: https://issues.jboss.org/browse/TEIID-2990 Project: Teiid Issue Type: Bug Components: Misc. Connectors Affects Versions: 8.4.1 Reporter: Filip Elias Assignee: Ramesh Reddy Fix For: 8.7.1, 8.8 Exception[1] is thrown when function lookup() is used in SQL query. Mongo translator doesn't support selection of constants only, which causes the exception(select 1, select 'hi' from smalla). [1] 3:59:20,997 ERROR [org.teiid.CONNECTOR] (Worker5_QueryProcessorQueue6) Connector worker process failed for atomic-request=Ef2Z7E0246by.1.5.3: com.mongodb.CommandFailureException: { "serverUsed" : "localhost/127.0.0.1:27017" , "errmsg" : "exception: $projection requires at least one output field" , "code" : 16403 , "ok" : 0.0} at com.mongodb.CommandResult.getException(CommandResult.java:71) Server log is in the attachment. Sample query: SELECT BQT1.SmallA.IntKey FROM BQT1.SmallA, BQT1.SmallB WHERE BQT1.SmallA.IntKey= lookup('BQT1.SmallB', 'IntKey', 'StringKey', BQT1.SmallA.StringKey) ORDER BY IntKey Generated mongo commands: { aggregate: "smalla", pipeline: [ { $project: { _m0: "$INTKEY", _m1: "$STRINGKEY" } } ] } and { aggregate: "smallb", pipeline: [ { $project: {} } ] } -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2989) Support odata batching

by Steven Hawkins (JIRA)

Steven Hawkins created TEIID-2989: ------------------------------------- Summary: Support odata batching Key: TEIID-2989 URL: https://issues.jboss.org/browse/TEIID-2989 Project: Teiid Issue Type: Enhancement Components: OData Reporter: Steven Hawkins Assignee: Steven Hawkins Fix For: 8.8 We nearly have support for OData batching, but the ODataBatchingProvider is registered as a class and not as an instance. Otherwise it appears that a multipart/mixed post to an entity/$batch will allow for batching in OData4j. -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2988) MongoDB: Function substring - starting index and number of arguments

by Filip Elias (JIRA)

Filip Elias created TEIID-2988: ---------------------------------- Summary: MongoDB: Function substring - starting index and number of arguments Key: TEIID-2988 URL: https://issues.jboss.org/browse/TEIID-2988 Project: Teiid Issue Type: Bug Components: Misc. Connectors Affects Versions: 8.4.1 Reporter: Filip Elias Assignee: Ramesh Reddy Fix For: 8.7.1, 8.8 Two minor bugs in function substring() Mongo's function $substr takes only 3 arguments so this query fails: SELECT intkey, SUBSTRING(BQT1.SmallA.stringkey, 1) FROM BQT1.SmallA ORDER BY intkey Exception:13:18:48,220 ERROR [org.teiid.CONNECTOR] (Worker38_QueryProcessorQueue345) Connector worker process failed for atomic-request=omsmHP0o16Sa.40.0.86: com.mongodb.CommandFailureException: { "serverUsed" : "localhost/127.0.0.1:27017" , "errmsg" : "exception: the $substr operator requires 3 operand(s)" , "code" : 16020 , "ok" : 0.0} at com.mongodb.CommandResult.getException(CommandResult.java:71) at com.mongodb.CommandResult.throwOnError(CommandResult.java:110) at com.mongodb.DBCollection.aggregate(DBCollection.java:1308) Generated mongo command: { aggregate: "smalla", pipeline: [ { $project: { c_0: "$INTKEY", c_1: { $substr: [ "$STRINGKEY", 1 ] } } }, { $sort: { c_0: 1 } } ] } Mongo's $substr function second argument represents number of bytes to skip, not the starting index. The function substring(StringKey,1,1) returns the second letter, but it should return the first letter. -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2988) MongoDB: Function substring - starting index and number of arguments

by RH Bugzilla Integration (JIRA)

[ https://issues.jboss.org/browse/TEIID-2988?page=com.atlassian.jira.plugin... ] RH Bugzilla Integration updated TEIID-2988: ------------------------------------------- Bugzilla Update: Perform Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1105101 > MongoDB: Function substring - starting index and number of arguments > -------------------------------------------------------------------- > > Key: TEIID-2988 > URL: https://issues.jboss.org/browse/TEIID-2988 > Project: Teiid > Issue Type: Bug > Components: Misc. Connectors > Affects Versions: 8.4.1 > Reporter: Filip Elias > Assignee: Ramesh Reddy > Fix For: 8.7.1, 8.8 > > > Two minor bugs in function substring() > Mongo's function $substr takes only 3 arguments so this query fails: > SELECT intkey, SUBSTRING(BQT1.SmallA.stringkey, 1) FROM BQT1.SmallA ORDER BY intkey > Exception:13:18:48,220 ERROR [org.teiid.CONNECTOR] (Worker38_QueryProcessorQueue345) Connector worker process failed for atomic-request=omsmHP0o16Sa.40.0.86: com.mongodb.CommandFailureException: { "serverUsed" : "localhost/127.0.0.1:27017" , "errmsg" : "exception: the $substr operator requires 3 operand(s)" , "code" : 16020 , "ok" : 0.0} > at com.mongodb.CommandResult.getException(CommandResult.java:71) > at com.mongodb.CommandResult.throwOnError(CommandResult.java:110) > at com.mongodb.DBCollection.aggregate(DBCollection.java:1308) > Generated mongo command: > { aggregate: "smalla", pipeline: [ { $project: { c_0: "$INTKEY", c_1: { $substr: [ "$STRINGKEY", 1 ] } } }, { $sort: { c_0: 1 } } ] } > Mongo's $substr function second argument represents number of bytes to skip, not the starting index. The function substring(StringKey,1,1) returns the second letter, but it should return the first letter. -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2987) MongoDB: No rows are returned when a function is used in a where clause

by Ramesh Reddy (JIRA)

[ https://issues.jboss.org/browse/TEIID-2987?page=com.atlassian.jira.plugin... ] Ramesh Reddy updated TEIID-2987: -------------------------------- Fix Version/s: 8.7.1 8.8 > MongoDB: No rows are returned when a function is used in a where clause > ----------------------------------------------------------------------- > > Key: TEIID-2987 > URL: https://issues.jboss.org/browse/TEIID-2987 > Project: Teiid > Issue Type: Bug > Components: Misc. Connectors > Affects Versions: 8.4.1 > Environment: Teiid 8.4.1 > Reporter: Filip Elias > Assignee: Ramesh Reddy > Fix For: 8.7.1, 8.8 > > > Teiid will return no rows when a function which is pushed down is used in a where clause. > These queries should return few rows, but the result is empty: > Query: > SELECT intkey, stringnum FROM BQT1.SmallA WHERE concat(stringkey, stringnum) = '7-17' ORDER BY intkey > Generated mongo command: > {aggregate: "smalla", pipeline: [ { $match: { _m0: "7-17" } }, { $project: { c_0: "$INTKEY", c_1: "$STRINGNUM" } }, { $sort: { c_0: 1 } } ] } > Query: > select intKey from bqt1.smalla where intKey+intKey >20 > Generated mongo command: > {aggregate: "smalla", pipeline: [ { $match: { _m0: { $gt: 20 } } }, { $project: { _m1: "$INTKEY" } } ] } -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2987) MongoDB: No rows are returned when a function is used in a where clause

by RH Bugzilla Integration (JIRA)

[ https://issues.jboss.org/browse/TEIID-2987?page=com.atlassian.jira.plugin... ] RH Bugzilla Integration updated TEIID-2987: ------------------------------------------- Bugzilla Update: Perform Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1105087 > MongoDB: No rows are returned when a function is used in a where clause > ----------------------------------------------------------------------- > > Key: TEIID-2987 > URL: https://issues.jboss.org/browse/TEIID-2987 > Project: Teiid > Issue Type: Bug > Components: Misc. Connectors > Affects Versions: 8.4.1 > Environment: Teiid 8.4.1 > Reporter: Filip Elias > Assignee: Ramesh Reddy > > Teiid will return no rows when a function which is pushed down is used in a where clause. > These queries should return few rows, but the result is empty: > Query: > SELECT intkey, stringnum FROM BQT1.SmallA WHERE concat(stringkey, stringnum) = '7-17' ORDER BY intkey > Generated mongo command: > {aggregate: "smalla", pipeline: [ { $match: { _m0: "7-17" } }, { $project: { c_0: "$INTKEY", c_1: "$STRINGNUM" } }, { $sort: { c_0: 1 } } ] } > Query: > select intKey from bqt1.smalla where intKey+intKey >20 > Generated mongo command: > {aggregate: "smalla", pipeline: [ { $match: { _m0: { $gt: 20 } } }, { $project: { _m1: "$INTKEY" } } ] } -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2983) MongoDB: Function "count()" returns sum instead of number of rows

by Ramesh Reddy (JIRA)

[ https://issues.jboss.org/browse/TEIID-2983?page=com.atlassian.jira.plugin... ] Ramesh Reddy commented on TEIID-2983: ------------------------------------- Is there a way re-write multiple aggregate statement above? right now I can only think that that needs to split into two statements. MongoDB can group by multiple elements in a group, then we can do a sum like {code} {$group:{ "_id" : {col1:"foo", col2:"foo2"} , "_m0" : { "$sum" : 1}}} {code} but not sure the it equals to select count(foo1), count(foo2) from bar Right now I set to ignore the second aggregation on hind sight, but may be I can throw an exception in that case to show translator does not have support. I probably should also support DISTINCT case there. > MongoDB: Function "count()" returns sum instead of number of rows > ----------------------------------------------------------------- > > Key: TEIID-2983 > URL: https://issues.jboss.org/browse/TEIID-2983 > Project: Teiid > Issue Type: Bug > Components: Misc. Connectors > Affects Versions: 8.7.1 > Reporter: Van Halbert > Assignee: Ramesh Reddy > Labels: Beta1 > Fix For: 8.7.1, 8.8 > > > Function "count()" returns sum of rows instead of number of rows > Query [1] returns sum of values of all rows of IntKey column. > Query [2] correctly returns number of rows > > [1] SELECT COUNT(IntKey) FROM BQT1.SmallA > [2] SELECT COUNT(*) FROM BQT1.SmallA -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2987) MongoDB: No rows are returned when a function is used in a where clause

by Filip Elias (JIRA)

Filip Elias created TEIID-2987: ---------------------------------- Summary: MongoDB: No rows are returned when a function is used in a where clause Key: TEIID-2987 URL: https://issues.jboss.org/browse/TEIID-2987 Project: Teiid Issue Type: Bug Components: Misc. Connectors Affects Versions: 8.4.1 Environment: Teiid 8.4.1 Reporter: Filip Elias Assignee: Ramesh Reddy Teiid will return no rows when a function which is pushed down is used in a where clause. These queries should return few rows, but the result is empty: Query: SELECT intkey, stringnum FROM BQT1.SmallA WHERE concat(stringkey, stringnum) = '7-17' ORDER BY intkey Generated mongo command: {aggregate: "smalla", pipeline: [ { $match: { _m0: "7-17" } }, { $project: { c_0: "$INTKEY", c_1: "$STRINGNUM" } }, { $sort: { c_0: 1 } } ] } Query: select intKey from bqt1.smalla where intKey+intKey >20 Generated mongo command: {aggregate: "smalla", pipeline: [ { $match: { _m0: { $gt: 20 } } }, { $project: { _m1: "$INTKEY" } } ] } -- This message was sent by Atlassian JIRA (v6.2.3#6260)

9 years, 12 months

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[JBoss JIRA] (TEIID-2983) MongoDB: Function "count()" returns sum instead of number of rows

by Steven Hawkins (JIRA)

[ https://issues.jboss.org/browse/TEIID-2983?page=com.atlassian.jira.plugin... ] Steven Hawkins commented on TEIID-2983: --------------------------------------- Or even just: select count(foo1), count(foo2) from bar If they both contribute to the where clause the counts can be incorrect. > Can suggest what may be better? It seems like only count\(*) is supported and not count in general. > MongoDB: Function "count()" returns sum instead of number of rows > ----------------------------------------------------------------- > > Key: TEIID-2983 > URL: https://issues.jboss.org/browse/TEIID-2983 > Project: Teiid > Issue Type: Bug > Components: Misc. Connectors > Affects Versions: 8.7.1 > Reporter: Van Halbert > Assignee: Ramesh Reddy > Labels: Beta1 > Fix For: 8.7.1, 8.8 > > > Function "count()" returns sum of rows instead of number of rows > Query [1] returns sum of values of all rows of IntKey column. > Query [2] correctly returns number of rows > > [1] SELECT COUNT(IntKey) FROM BQT1.SmallA > [2] SELECT COUNT(*) FROM BQT1.SmallA -- This message was sent by Atlassian JIRA (v6.2.3#6260)

10 years

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[JBoss JIRA] (TEIID-2983) MongoDB: Function "count()" returns sum instead of number of rows

by Ramesh Reddy (JIRA)

[ https://issues.jboss.org/browse/TEIID-2983?page=com.atlassian.jira.plugin... ] Ramesh Reddy commented on TEIID-2983: ------------------------------------- [~shawkins] More then single aggregate you mean like {code} select count(foo1), avg(foo2) from bar {code} Can suggest what may be better? > MongoDB: Function "count()" returns sum instead of number of rows > ----------------------------------------------------------------- > > Key: TEIID-2983 > URL: https://issues.jboss.org/browse/TEIID-2983 > Project: Teiid > Issue Type: Bug > Components: Misc. Connectors > Affects Versions: 8.7.1 > Reporter: Van Halbert > Assignee: Ramesh Reddy > Labels: Beta1 > Fix For: 8.7.1, 8.8 > > > Function "count()" returns sum of rows instead of number of rows > Query [1] returns sum of values of all rows of IntKey column. > Query [2] correctly returns number of rows > > [1] SELECT COUNT(IntKey) FROM BQT1.SmallA > [2] SELECT COUNT(*) FROM BQT1.SmallA -- This message was sent by Atlassian JIRA (v6.2.3#6260)

10 years

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