malz/ekuiper-new @ af1fcb2ac91e06f083d880fc984ed108168ffe0e

Jiyong Huang dc8fe95991 fix(table): key should be case sensitive		%!s(int64=2) %!d(string=hai) anos
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sink.go	1a3d892296 fix(fea): support connection test for source/sink	%!s(int64=2) %!d(string=hai) anos
source.go	dc8fe95991 fix(table): key should be case sensitive	%!s(int64=2) %!d(string=hai) anos
source_test.go	afbecba03a fix(conf): fix config overwritten by environment issue	%!s(int64=2) %!d(string=hai) anos