Placement of Tables

Sybase IQ creates tables in your current database.

If you are connected to an IQ database, tables are placed as follows:

Table placement

Type of table

Permitted placement

Default placement

Permanent

IQ store, catalog store

IQ store

Global temporary

IQ temporary store, catalog store

IQ temporary store

Local temporary

IQ temporary store or catalog store; only visible to user who creates it

IQ temporary store

Join Virtual Tables

A Join Virtual Table is a denormalized table that looks like a regular table; it has a name, columns, rows, and indexes.

Sybase IQ creates Join Virtual Tables as a result of a CREATE JOIN INDEX for internal processing purposes and deletes them when you do a DROP JOIN INDEX. You cannot create, modify, or delete Join Virtual Tables, but you may see error messages related to them if you try to use or modify them. Sybase suggests that you ignore all Join Virtual Tables.

Servers running in a multiplex cannot create or drop join indexes. For more information, see Using Sybase IQ Multiplex.