expression: fix the issue that incorrect result for a predicate that uses the CHAR() function (#16014) #16556
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cherry-pick #16014 to release-2.1
What problem does this PR solve?
Issue Number: close #15986
What is changed and how it works?
When we use the
string
type to determine thebool
value, thestring
type is converted to afloat
type instead of anint
type.Check List
Tests