"
(
- agentnum IS NOT NULL
- OR
- 0 < ( SELECT COUNT(*)
- FROM type_pkgs
- LEFT JOIN agent_type USING ( typenum )
- LEFT JOIN agent AS typeagent USING ( typenum )
- WHERE type_pkgs.pkgpart = part_pkg.pkgpart
- AND typeagent.agentnum IN ($agentnums)
- )
+ ( agentnum IS NOT NULL AND agentnum IN ($agentnums) )
+ OR ( agentnum IS NULL
+ AND EXISTS ( SELECT 1
+ FROM type_pkgs
+ LEFT JOIN agent_type USING ( typenum )
+ LEFT JOIN agent AS typeagent USING ( typenum )
+ WHERE type_pkgs.pkgpart = part_pkg.pkgpart
+ AND typeagent.agentnum IN ($agentnums)
+ )
+ )
)
";