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Feature: lazy initialize orca optimizer #191

Merged
merged 1 commit into from
Sep 20, 2023
Merged

Feature: lazy initialize orca optimizer #191

merged 1 commit into from
Sep 20, 2023

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lss602726449
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@lss602726449 lss602726449 commented Sep 6, 2023 •
edited

closes: #ISSUE_Number

Change logs

We lazy initialize the orca optimizer, because the InitGPOPT() will consume losts of memory. his may increase the number of connections to QD, thereby increasing tps.

Why are the changes needed?

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Does this PR introduce any user-facing change?

No

How was this patch tested?

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@lss602726449 lss602726449 force-pushed the lazy_initialize_orca branch 3 times, most recently from 08a972e to 5d63f01 Compare September 7, 2023 02:08
@lss602726449
Feature: lazy initialize orca optimizer
5370db8 
InitGPOPT is called in the QD initialization phase, which will
affect the memory overhead of about 800KB for each QD connection. We
postpone InitGPOPT before calling ORCA's optimize_query. The postgres
optimizer may set ORCA through disable_xform and enable_xform, we also
added InitGPOPT for these function.
@my-ship-it my-ship-it merged commit 12d6caf into cloudberrydb:main Sep 20, 2023
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@HuSen8891 HuSen8891 HuSen8891 approved these changes

@my-ship-it my-ship-it my-ship-it approved these changes

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