Create Unique Index On Flow does not work for table names 23 characters

Question

I have a "create unique index on flow table" step that is dynamically generated by the IKM.
The index name that is generated by the IKM is based on the table name except that the created index name is prefixed with "I$_" and ends with "_idx". Obviously, since Oracle table names can not exceed 30 characters in length, the index creation step will fail if the base table name exceeds 23 characters.
I have tried to substring the index name generation step in the IKM so that it only uses the first 23 characters of the table name, but have not had any luck with using the "substring" command together with snpRef.getTable call.
This is the section of the IKM that I desire to change:
- <Field name="Txt" type="java.lang.String">
- <![CDATA[
create unique index      <%=snpRef.getTable("L","INT_NAME","W")%>_idx
on          <%=snpRef.getTable("L","INT_NAME","W")%> (<%=snpRef.getColList("", "[COL_NAME]", ", ", "", "UK")%>)
<%=snpRef.getUserExit("FLOW_TABLE_OPTIONS")%>
]]>
</Field>
I would like to change the above to something similar to the following (note the only change is the addition of substring(1,23))
- <Field name="Txt" type="java.lang.String">
- <![CDATA[
create unique index <%=snpRef.getTable("L","INT_NAME","W")*.substring(1,23)*%_idx
on          <%=snpRef.getTable("L","INT_NAME","W")%> (<%=snpRef.getColList("", "[COL_NAME]", ", ", "", "UK")%>)
<%=snpRef.getUserExit("FLOW_TABLE_OPTIONS")%>
]]>
</Field>
Any help greatly appreciated. Thanks.

Answer 1

As the index is temporary, just like the I$ talbel, the easiest way is to replace the table name with some unique identifier like the session is:
bq. I$_&lt;%=odiRef.getSession("SESS_NO")%&gt;_idx
If for some reason that is not unique enough, add the NNO:
bq. I$_&lt;%=odiRef.getSession("SESS_NO")%&gt;&lt;%=odiRef.getSession("NNO")%&gt; \\ _idx