"best" data format for attribute searches

[Bart van den Eijnden]

Hi list,

AFAIK Mapserver does not use the Mapinfo attribute indexes.

I am trying to perform attribute searches on a 25 Mb Mapinfo file and am worried about performance, since the indexes won't be used which will mean scanning the whole data file for every attribute search.

What would be a wise format to shift to for this type of operation? Or doesn't it make any sense to shift to eg PostGIS because of the way Mapserver does queries to RDBMS's?

Thanks in advance for any insight on this.

Btw the data is polygon data.

Best regards,
Bart

Bart van den Eijnden
Syncera IT Solutions
Postbus 270
2600 AG  DELFT

tel.nr.: 015-7512436
email: BEN at Syncera-ITSolutions.nl