feat(meta): support parallel materialize

[TennyZhuang]

Signed-off-by: TennyZhuang [email protected]

What's changed and what's your intention?

Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests

Refer to a related PR or issue link (optional)

Fix #54

[codecov]

Codecov Report

Merging #58 (1531ee0) into main (9553f97) will decrease coverage by 0.00%.
The diff coverage is 93.33%.

@@             Coverage Diff              @@
##               main      #58      +/-   ##
============================================
- Coverage     74.48%   74.47%   -0.01%     
  Complexity     2645     2645              
============================================
  Files           825      825              
  Lines         47323    47329       +6     
  Branches       1560     1560              
============================================
  Hits          35250    35250              
- Misses        11275    11281       +6     
  Partials        798      798              

Flag	Coverage Δ
java	61.91% <ø> (ø)
rust	79.98% <93.33%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
rust/meta/src/stream/graph/stream_graph.rs	89.83% <ø> (-3.62%)	⬇️
rust/meta/src/stream/test_fragmenter.rs	98.46% <ø> (ø)
rust/meta/src/stream/fragmenter.rs	90.36% <92.68%> (-2.89%)	⬇️
rust/meta/src/stream/graph/fragment_graph.rs	100.00% <100.00%> (ø)
rust/common/src/types/ordered_float.rs	25.00% <0.00%> (-0.34%)	⬇️
rust/stream/src/executor/barrier_align.rs	78.78% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9553f97...1531ee0. Read the comment docs.

[yezizp2012]

LGTM

[wyhyhyhyh]

LGTM