planner: fix space requirement when binding from history (#41140)#41244
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ti-chi-bot merged 2 commits intopingcap:release-6.5from Feb 14, 2023
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Reminiscent
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Feb 14, 2023
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This is an automated cherry-pick of #41140
What problem does this PR solve?
Issue Number: close #41126
Problem Summary:
The normalized sql from statement summary we used to parse is improper. Because for some builtin functions, there are space between the function name and parentheses, this will cause parser panic. For example
Here are some builtin functions from mysql that can't be parsed where there has space between the function name and parentheses
https://dev.mysql.com/doc/refman/8.0/en/function-resolution.html
What is changed and how it works?
We use the original sql instead
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