Return the name of the type instead of the name of the column

[alitaker]

getColumns returns wrong metadata because it was returning the name of the column instead of the name of the datatype

[sundy-li]

Thanks, LGTM

[codecov]

Codecov Report

Merging #367 (954c112) into master (43d7d6d) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #367   +/-   ##
=========================================
  Coverage     61.90%   61.90%           
  Complexity     1192     1192           
=========================================
  Files           131      131           
  Lines          6418     6418           
  Branches        475      475           
=========================================
  Hits           3973     3973           
  Misses         2178     2178           
  Partials        267      267           

Impacted Files	Coverage Δ
...ub/housepower/jdbc/ClickHouseDatabaseMetadata.java	91.43% <100.00%> (ø)

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