[ISSUE #644] Fix the zlibWriterPools doesn't work leads to high memory usage

[cserwen]

What is the purpose of the change

issue #644

Brief changelog

Get the address of the array element instead of a copy of the element

Verifying this change

XXXX

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[codecov-io]

Codecov Report

Merging #645 (10cc6be) into master (d6e66a2) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #645   +/-   ##
=======================================
  Coverage   24.42%   24.42%           
=======================================
  Files          48       48           
  Lines        5207     5207           
=======================================
  Hits         1272     1272           
  Misses       3725     3725           
  Partials      210      210           

Impacted Files	Coverage Δ
internal/utils/compression.go	72.22% <100.00%> (ø)

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[maixiaohai]

lgtm