Fix no rows return error when close

[lunny]

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[codecov-io]

Codecov Report

Merging #1334 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1334      +/-   ##
==========================================
+ Coverage   57.37%   57.37%   +<.01%     
==========================================
  Files          44       44              
  Lines        7819     7813       -6     
==========================================
- Hits         4486     4483       -3     
+ Misses       2777     2773       -4     
- Partials      556      557       +1

Impacted Files	Coverage Δ
rows.go	56.14% <100%> (+3.75%)	⬆️
xorm.go	66.66% <0%> (-3.04%)	⬇️

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