21.5. Missing Features

The following features are currently missing from PL/Perl, but they would make welcome contributions:

• PL/Perl functions cannot call each other directly (because they are anonymous subroutines inside Perl). There's presently no way for them to share global variables, either.

• PL/Perl cannot be used to write trigger functions.

• DBD::PgSPI or similar capability should be integrated into the standard PostgreSQL distribution.