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functioncmds.c

Blame
    • Tom Lane's avatar
      d89737d3
      Support "variadic" functions, which can accept a variable number of arguments · d89737d3
      Tom Lane authored 
      so long as all the trailing arguments are of the same (non-array) type.
The function receives them as a single array argument (which is why they
have to all be the same type).

It might be useful to extend this facility to aggregates, but this patch
doesn't do that.

This patch imposes a noticeable slowdown on function lookup --- a follow-on
patch will fix that by adding a redundant column to pg_proc.

Pavel Stehule
      d89737d3
      History
      Support "variadic" functions, which can accept a variable number of arguments
      Tom Lane authored 
      so long as all the trailing arguments are of the same (non-array) type.
The function receives them as a single array argument (which is why they
have to all be the same type).

It might be useful to extend this facility to aggregates, but this patch
doesn't do that.

This patch imposes a noticeable slowdown on function lookup --- a follow-on
patch will fix that by adding a redundant column to pg_proc.

Pavel Stehule
    functioncmds.c 47.73 KiB