[jira] [Commented] (DERBY-6433) INSERT/UPDATE incorrectly require user to have privilege to run generation expressions.

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    [ https://issues.apache.org/jira/browse/DERBY-6433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13872554#comment-13872554 ] 

ASF subversion and git services commented on DERBY-6433:
--------------------------------------------------------

Commit 1558559 from [~rhillegas] in branch 'code/trunk'
[ https://svn.apache.org/r1558559 ]

DERBY-6434: Don't make INSERT statements require USAGE privilege on the datatypes of generated columns; fix remaining problem described by DERBY-6433; commit derby-6434-04-aa-dontNeedPrivOnGeneratedColumnTypeForInsert.diff.

> INSERT/UPDATE incorrectly require user to have privilege to run generation expressions.
> ---------------------------------------------------------------------------------------
>
>                 Key: DERBY-6433
>                 URL: https://issues.apache.org/jira/browse/DERBY-6433
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.11.0.0
>            Reporter: Rick Hillegas
>
> According to the discussion on DERBY-6429, generation expressions run under the aegis of the table owner and their privileges do not need to be checked when running INSERT/UPDATE statements. However, Derby requires the INSERTer/UPDATEr to have EXECUTE privilege on functions invoked by generation expressions and USAGE privilege on types mentioned by generation expressions.
> Hopefully, this bug will be fixed by the work on DERBY-6429.
> The following script shows this behavior:
> connect 'jdbc:derby:memory:db;user=test_dbo;create=true';
> call syscs_util.syscs_create_user( 'TEST_DBO', 'test_dbopassword' );
> call syscs_util.syscs_create_user( 'RUTH', 'ruthpassword' );
> -- bounce database to turn on authentication and authorization
> connect 'jdbc:derby:memory:db;shutdown=true';
> connect 'jdbc:derby:memory:db;user=test_dbo;password=test_dbopassword' as dbo;
> -- schema
> create function absoluteValue( inputValue int ) returns int
> language java parameter style java deterministic no sql
> external name 'java.lang.Math.abs';
> create type hashmap external name 'java.util.HashMap' language java;
> create function makeHashMap() returns hashmap
> language java parameter style java no sql
> external name 'org.apache.derbyTesting.functionTests.tests.lang.UDTTest.makeHashMap';
> create table t1_generated_function
> (
>     a int,
>     b int generated always as ( absoluteValue( a ) )
> );
> create table t1_generated_type
> (
>     a hashmap,
>     b boolean generated always as ( a is null )
> );
> -- data
> insert into t1_generated_function( a ) values -101;
> insert into t1_generated_type( a ) values ( makeHashMap() );
> -- privileges
> grant insert on t1_generated_function to ruth;
> grant update on t1_generated_function to ruth;
> grant insert on t1_generated_type to ruth;
> grant update on t1_generated_type to ruth;
> connect 'jdbc:derby:memory:db;user=ruth;password=ruthpassword' as ruth;
> -- incorrectly fails because ruth does not have EXECUTE privilege on absoluteValue()
> insert into test_dbo.t1_generated_function( a ) values ( -102 );
> update test_dbo.t1_generated_function set a = -103;
> -- incorrectly fails because ruth does not have USAGE privilege on hashmap
> insert into test_dbo.t1_generated_type( a ) values ( null );
> update test_dbo.t1_generated_type set a = null;



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