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feature(optimizer): Support constant folding #5924

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merged 2 commits into from Jun 13, 2022

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leiysky
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@leiysky leiysky commented Jun 12, 2022

I hereby agree to the terms of the CLA available at: https://databend.rs/dev/policies/cla/

Summary

Support constant folding and filter normalization.

Changelog

  • New Feature

Related Issues

Part of #5919

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@leiysky leiysky requested a review from xudong963 June 12, 2022 14:24
@leiysky leiysky added the pr-feature this PR introduces a new feature to the codebase label Jun 12, 2022
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mergify bot commented Jun 12, 2022

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I tested a case in the pr but got stack overflow:

mysql> select * from t1 where a > 0 or false;
ERROR 2013 (HY000): Lost connection to MySQL server during query
No connection. Trying to reconnect...
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1:3307' (61)
ERROR:
Can't connect to the server

It's ok in main branch

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leiysky commented Jun 13, 2022

select * from t1 where a > 0 or false;

It's a bug, I've just fixed it.

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The 03_0003_select_group_by failure is not related to this PR, let's merge.

@BohuTANG BohuTANG merged commit af0e36d into datafuselabs:main Jun 13, 2022
@leiysky leiysky deleted the constant-folding branch June 13, 2022 10:25
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5 participants