On 10/17/06, Oystein Grovlen - Sun Norway <[EMAIL PROTECTED]> wrote:
I find it strange that while "SHOW INDEXES", "SHOW PROCEDURES", and "SHOW SYNONYMS" by default list all corresponding objects in the database, "SHOW TABLES" and "SHOW VIEWS" by default only list the corresponding objects in the current schema. Would it not be better if all commands behaved the same way? Are there reasons for not changing this?
Having looked at the ij code, but not having gone to look at the corresponding metadata code or the JDBC spec, I can say that this is the current behavior when calling DatabaseMetadata.getTables() with null as the argument for the schema parameter and "TABLE" as the table type. I don't see a reason why it couldn't be fixed, although the fix may be to the metadata method, and not necessarily to ij. I suspect that if the schema is null, Derby uses the current connection schema to restrict the set of tables that is returned.
I also find it a bit strange that "SHOW VIEWS" uses the heading "TABLE_NAME" and not "VIEW_NAME".
These are the names of the columns returned from the ResultSet retrieved from DatabaseMetadata.getTables(), and I believe those column names are mandated by the JDBC spec. And, ij displays them faithfully. :-) We could override the column names in a similar way that we set the column widths but I don't think that is really worthwhile. Probably better to just document that little idiosyncrasy. andrew
