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[HACKERS] [PATCH] Make ExplainOpenGroup()/ExplainCloseGroup() available for extensions. - Mailing list pgsql-hackers

From	Hadi Moshayedi
Subject	[HACKERS] [PATCH] Make ExplainOpenGroup()/ExplainCloseGroup() available for extensions.
Date	July 25, 2017 17:27:33
Msg-id	CA+_kT_dU-rHCN0u6pjA6bN5CZniMfD=-wVqPY4QLrKUY_uJq5w@mail.gmail.com Whole thread Raw
List	pgsql-hackers

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Hello Hackers,

The attached patch moves declarations of ExplainOpenGroup()/ExplainCloseGroup() from explain.c to explain.h.

This can be useful for extensions that need explain groups in their custom-scan explain output.

For example, Citus uses groups in its custom explain outputs [1]. But it achieves it by having a copy of ExplainOpenGroup()/ExplainCloseGroup() in its source code, which is not the best way.

Please review.

[1] https://github.com/citusdata/citus/blob/master/src/backend/distributed/planner/multi_explain.c

Thanks,

Hadi

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make_explainopenclosegroup_public.patch

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[HACKERS] [PATCH] Make ExplainOpenGroup()/ExplainCloseGroup() available for extensions. - Mailing list pgsql-hackers

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