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[WIP] executor: inline projection for sort #15399

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@Reminiscent Reminiscent commented Mar 16, 2020

What problem does this PR solve?

part of #14428
Inline projection for sort executor

What is changed and how it works?

  1. During the logic optimization phase, we use the function inlineProjection to make the father node and child node schemas different.
  2. When we build the sort executor, we use the function markChildrenUsedCols to mark the schemas that we need.
  3. After we have done the sort operation, we need to eliminate the unwanted schema.

Check List

Tests

  • Unit test
  • Integration test

@Reminiscent Reminiscent requested review from a team as code owners March 16, 2020 07:33
@sre-bot sre-bot added the contribution This PR is from a community contributor. label Mar 16, 2020
@ghost ghost requested review from qw4990, SunRunAway, eurekaka and francis0407 and removed request for a team March 16, 2020 07:33
@github-actions github-actions bot added the sig/execution SIG execution label Mar 16, 2020
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