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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DERBY-2019) IJ's describe command does not handle quotes very well
Date Tue, 08 May 2007 15:47:15 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bryan Pendleton resolved DERBY-2019.
------------------------------------

       Resolution: Fixed
    Fix Version/s: 10.3.0.0
       Derby Info:   (was: [Patch Available])

Hi John, thank you very much for the review and feedback!

Committed the code change to the trunk as revision 536227,
and committed the docs change to the docs trunk as 536228.


> IJ's describe command does not handle quotes very well
> ------------------------------------------------------
>
>                 Key: DERBY-2019
>                 URL: https://issues.apache.org/jira/browse/DERBY-2019
>             Project: Derby
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 10.2.1.6, 10.3.0.0
>            Reporter: John H. Embretsen
>         Assigned To: Bryan Pendleton
>            Priority: Minor
>             Fix For: 10.3.0.0
>
>         Attachments: describe_enhancement.diff, docs.diff, rtoolsijcomrefdescribe.html
>
>
> In IJ, the describe <table | view> command does not handle quotes very well. Current
behavior is:
> a) Double quotes:
> IJ does not recognize describe command when encountering double quotes.
>     ij> create table "CamelCaseTable" (col1_in_cct int);
>     0 rows inserted/updated/deleted
>     ij> describe "CamelCaseTable";
>     ERROR 42X01: Syntax error: Encountered "describe" at line 1, column 1.
> I'm assuming that it should be possible to execute the describe command on case-sensitive
table names.
> b) Single quotes:
> IJ describes all tables in current schema when encountering two single quotes after the
describe command.
>     ij> create table table1 (col1_table1 int);
>     0 rows inserted/updated/deleted
>     ij> create table table2 (col1_table2 int);
>     0 rows inserted/updated/deleted
>     ij> describe '';
>     COLUMN_NAME         |TYPE_NAME|DEC&|NUM&|COLUM&|COLUMN_DEF|CHAR_OCTE&|IS_NULL&
>     ------------------------------------------------------------------------------
>     COL1_TABLE1         |INTEGER  |0   |10  |10    |NULL      |NULL      |YES
>     COL1_TABLE2         |INTEGER  |0   |10  |10    |NULL      |NULL      |YES
>     
>     2 rows selected
> In case b), it does not make a difference whether the single quotes actually surround
a valid table name, some garbage, or nothing at all.
> I must admit that b) seems like a useful feature, listing all columns in all tables in
a schema, but it's usage is not very intuitive, nor is it documented, so this may be a bug.

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