-defined Aggregates</A
></DT
><DT
>35.11. <A
HREF="xtypes.html"
>User-defined Types</A
></DT
><DT
>35.12. <A
HREF="xoper.html"
>User-defined Operators</A
></DT
><DT
>35.13. <A
HREF="xoper-optimization.html"
>Operator Optimization Information</A
></DT
><DT
>35.14. <A
HREF="xindex.html"
>Interfacing Extensions To Indexes</A
></DT
><DT
>35.15. <A
HREF="extend-extensions.html"
>Packaging Related Objects into an Extension</A
></DT
><DT
>35.16. <A
HREF="extend-pgxs.html"
>Extension Building Infrastructure</A
></D