doesn't execSRF.c do that already?

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От Chapman Flack
Тема doesn't execSRF.c do that already?
Дата
Msg-id 5D2D1DBF.60103@anastigmatix.net
обсуждение исходный текст
Список pgsql-hackers
I see some code of long standing in PL/Java where its handler
for a set-returning function creates a new context, "PL/Java row context",
during first-call init, as a child of context->multi_call_memory_ctx,
diligently resets it with every percall-setup and before calling the
user function, and deletes it when the whole set has been returned.

The more I look at it, the more convinced I am that this is one hundred
percent redundant with what ExecMakeTableFunctionResult is already doing
with ecxt_per_tuple_memory, which is similarly reset before every call
for a tuple, and is already current when PL/Java's handler is called.

Am I missing some obvious reason Thomas might have used his own context
for that? As far as I can see in git, ExecMakeTableFunctionResult has been
providing its own ecxt_per_tuple_memory, at least as far back as 7.3,
which I think is (slightly) older than PL/Java.

Regards,
-Chap



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