support purge database

[zhenghaoz]

No description provided.

[codecov]

Codecov Report

Merging #549 (c30261a) into master (3d802b3) will decrease coverage by 0.14%.
The diff coverage is 48.91%.

@@            Coverage Diff             @@
##           master     #549      +/-   ##
==========================================
- Coverage   71.40%   71.26%   -0.15%     
==========================================
  Files          62       62              
  Lines       11631    11751     +120     
==========================================
+ Hits         8305     8374      +69     
- Misses       2537     2575      +38     
- Partials      789      802      +13     

Impacted Files	Coverage Δ
storage/cache/database.go	74.64% <ø> (+1.40%)	⬆️
storage/data/database.go	64.54% <ø> (ø)
master/rest.go	53.46% <5.71%> (-2.09%)	⬇️
storage/data/sql.go	78.88% <69.23%> (-0.18%)	⬇️
storage/cache/sql.go	79.09% <71.42%> (-0.26%)	⬇️
storage/cache/redis.go	86.61% <73.33%> (-1.57%)	⬇️
storage/cache/mongodb.go	77.65% <75.00%> (-0.09%)	⬇️
storage/data/mongodb.go	79.49% <75.00%> (-0.08%)	⬇️
storage/cache/no_database.go	100.00% <100.00%> (ø)
storage/data/no_database.go	100.00% <100.00%> (ø)
... and 4 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.