.*: complete insert/replace statement #708

[hustjieke]

[summary] compute insert/replace statement.

1. add [HIGH_PRIORITY | LOW_PRIORITY | DELAYED] options for Insert, add [LOW_PRIORITY | DELAYED] options for Replace Statement.
2. remove "on duplicate key update" for Replace Statement, this is a bug.
3. add support for "PARTITION" to parse, but the function hasn't implement yet.
4. add support for writing data without columns, like: "insert into t values ...."
5. refactor some code on insert plan.

[test case] src/planner/insert_plan_test.go src/proxy/insert_test.go src/vendor/github.com/xelabs/go-mysqlstack/sqlparser/parse_test.go

[patch codecov] src/planner/insert_plan.go 93.7% src/proxy/insert.go 87.0% src/vendor/github.com/xelabs/go-mysqlstack/sqlparser/ast.go 96.6%

[codecov[bot]]

Codecov Report

Merging #709 (f1529a0) into master (7637ccb) will decrease coverage by 0%. The diff coverage is 90%.

@@          Coverage Diff          @@
##           master   #709   +/-   ##
=====================================
- Coverage      89%    89%   -1%     
=====================================
  Files         131    131           
  Lines        9284   9308   +24     
=====================================
+ Hits         8271   8286   +15     
- Misses        672    676    +4     
- Partials      341    346    +5     

Impacted Files	Coverage Δ
src/proxy/insert.go	81% <77%> (-19%)	:arrow_down:
src/planner/insert_plan.go	90% <91%> (-4%)	:arrow_down:
src/router/compute.go	100% <100%> (ø)
src/router/global.go	83% <100%> (ø)
src/router/hash.go	98% <100%> (ø)
src/router/list.go	91% <100%> (ø)
src/router/router.go	86% <100%> (ø)
src/router/single.go	83% <100%> (ø)
src/backend/txn.go	86% <0%> (-2%)	:arrow_down:
src/backend/connection.go	89% <0%> (+1%)	:arrow_up:
... and 1 more

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[BohuTANG]

This feature is really cool, I need @andyli029 to review it first.

[andyli029]

LGTM

[BohuTANG]

LGTM