expression: fix DIV with decimal type (#11804) #11812
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/run-all-tests |
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component/expression
type/2.1 cherry-pick
type/bugfix
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cherry-pick #11804 to release-2.1
What problem does this PR solve?
Fix this issue(#11180).
operator_div in mysql.
In TiDB, the division operator does not correctly resolve the case that an operand is an unsigned number.
What is changed and how it works?
When evaluating the expression of 'div with decimal type', it will check the operands first.
And do different things depend on whether either of the operands is unsigned.
Check List
Tests
add two test cases and pass all the tests