branch-2.1: [fix](FoldConst)The length function returns incorrect results under FoldConst. #40947 #46703
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…oldConst. (#40947) ## Proposed changes ``` mysql [(none)]>set debug_skip_fold_constant = false; Query OK, 0 rows affected (0.00 sec) mysql [(none)]>select length('你'); +---------------+ | length('你') | +---------------+ | 1 | +---------------+ 1 row in set (0.01 sec) mysql [(none)]>set debug_skip_fold_constant = true; Query OK, 0 rows affected (0.00 sec) mysql [(none)]>select length('你'); +---------------+ | length('你') | +---------------+ | 3 | +---------------+ ``` <!--Describe your changes.-->
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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run buildall |
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#46523 has already been merged. |
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Cherry-picked from #40947