sparse: accelerate the writing of index files

[sparknack]

Since we remove forward index in #1011 , sparse row data for index file should reconstructed from inverted index. But it is too slow to construct the index file using the DAAT cursor method. Switch to the TAAT traversal method instead.

[mergify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.91%. Comparing base (3c46f4c) to head (52ee7e2).
Report is 284 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##           main    #1017       +/-   ##
=========================================
+ Coverage      0   73.91%   +73.91%     
=========================================
  Files         0       82       +82     
  Lines         0     6981     +6981     
=========================================
+ Hits          0     5160     +5160     
- Misses        0     1821     +1821     

see 82 files with indirect coverage changes

[zhengbuqian]

/lgtm
/approve

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[sparknack]

issue: #967

[sparknack]

/kind improvement