[jira] [Assigned] (TRAFODION-1212) LP Bug: 1449732 - Drop schema cascade returns error 1069

["Suresh Subbiah (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TRAFODION-1212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Suresh Subbiah reassigned TRAFODION-1212:
-----------------------------------------

    Assignee: Suresh Subbiah

> LP Bug: 1449732 - Drop schema cascade returns error 1069
> --------------------------------------------------------
>
>                 Key: TRAFODION-1212
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-1212
>             Project: Apache Trafodion
>          Issue Type: Bug
>          Components: sql-cmu
>            Reporter: Weishiun Tsai
>            Assignee: Suresh Subbiah
>            Priority: Critical
>             Fix For: 2.0-incubating
>
>
> The frequency of ‘drop schema cascade’ returning error 1069 is still pretty high, even after several attempts to address this issue.  This is causing a lot of headache for the QA regression testing.  After each regression testing run, there are always several schemas that couldn’t be dropped and needed to be manually cleaned up.
> Multiple issues may lead to this problem.  This just happens to be one scenario that is quite reproducible now.  In this particular scenario, the schema contains a TMUDF library qaTmudfLib and 2 TMUDF functions qa_tmudf1 and qa_tmudf2.  qa_tmudf1 is a valid function, while qa_tmudf2 has a bogus external name and a call to it is expected to see an error.
> After invoking both, a drop schema cascade almost always returns error 1069.
> This is seen on the r1.1.0rc3 (v0427) build installed on a workstation and it is fairly reproducible with this build.  To reproduce it:
> (1) Download the attached tar file and untar it to get the 3 files in there. Put the files in any directory <mydir>.
> (2) Make sure that you have run ./sqenv.sh of your Trafodion instance first as building UDF needs $MY_SQROOT for the header files.
> (3) Run build.sh
> (4) Change the line “create library qaTmudfLib file '<mydir>/qaTMUdfTest.so';” in mytest.sql and fill in <mydir>
> (5) From sqlci, obey mytest.sql
> Here is the execution output:
> >>log mytest.log clear;
> >>drop schema mytest cascade;
> *** ERROR[1003] Schema TRAFODION.MYTEST does not exist.
> --- SQL operation failed with errors.
> >>create schema mytest;
> --- SQL operation complete.
> >>set schema mytest;
> --- SQL operation complete.
> >>
> >>create library qaTmudfLib file '<mydir>/qaTMUdfTest.so';
> --- SQL operation complete.
> >>
> >>create table mytable (a int, b int);
> --- SQL operation complete.
> >>insert into mytable values (1,1),(2,2);
> --- 2 row(s) inserted.
> >>
> >>create table_mapping function qa_tmudf1()
> +>external name 'QA_TMUDF'
> +>language cpp
> +>library qaTmudfLib;
> --- SQL operation complete.
> >>
> >>select * from UDF(qa_tmudf1(TABLE(select * from mytable)));
> A            B
> -----------  -----------
>           1            1
>           2            2
> --- 2 row(s) selected.
> >>
> >>create table_mapping function qa_tmudf2()
> +>external name 'DONTEXIST'
> +>language cpp
> +>library qaTmudfLib;
> --- SQL operation complete.
> >>
> >>select * from UDF(qa_tmudf2(TABLE(select * from mytable)));
> *** ERROR[11246] An error occurred locating function 'DONTEXIST' in library 'qaTMUdfTest.so'.
> *** ERROR[8822] The statement was not prepared.
> >>
> >>drop schema mytest cascade;
> *** ERROR[1069] Schema TRAFODION.MYTEST could not be dropped.
> --- SQL operation failed with errors.



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