[SQL] Support MySQL window function.

[csynineyang]

Table 12.26 Window Functions

• CUME_DIST()
• DENSE_RANK()
• FIRST_VALUE()
• LAG()
• LAST_VALUE()
• LEAD()
• NTH_VALUE()
• NTILE()
• PERCENT_RANK()
• RANK()
• ROW_NUMBER()

[codecov-commenter]

Codecov Report

Patch coverage: 58.30% and project coverage change: +0.31 🎉

Comparison is base (e19afc8) 36.02% compared to head (3dd8d97) 36.34%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #688      +/-   ##
==========================================
+ Coverage   36.02%   36.34%   +0.31%     
==========================================
  Files         216      224       +8     
  Lines       23128    23459     +331     
==========================================
+ Hits         8332     8526     +194     
- Misses      13870    13965      +95     
- Partials      926      968      +42     

Impacted Files	Coverage Δ
pkg/runtime/function/first_value.go	48.83% <48.83%> (ø)
pkg/runtime/function/last_value.go	50.00% <50.00%> (ø)
pkg/runtime/function/lag.go	56.92% <56.92%> (ø)
pkg/runtime/function/lead.go	56.92% <56.92%> (ø)
pkg/runtime/function/rank.go	65.21% <65.21%> (ø)
pkg/runtime/function/dense_rank.go	68.00% <68.00%> (ø)
pkg/runtime/function/cume_dist.go	70.37% <70.37%> (ø)
pkg/runtime/function/percent_rank.go	70.37% <70.37%> (ø)

... and 1 file with indirect coverage changes

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[Mulavar]

Maybe we should add an issue to describe the progress of this work and note some subtasks, it looks like a big feature.

[Mulavar]

Please sqush the commit to rewrod the commit message, it has too much useless commit message like Merge branch 'arana-db:master' into master.

[Mulavar]

Maybe we should add an issue to describe the progress of this work and note some subtasks, it looks like a big feature.
@csynineyang

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information