12th September 2019: PostgreSQL 12 Beta 4 Released!
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37.7. Limitations and 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).

  • SPI is not yet fully implemented.

  • In the current implementation, if you are fetching or returning very large data sets, you should be aware that these will all go into memory.