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multi-staged optimization to support simple queries #115

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zhouqingqing opened this issue Jun 11, 2020 · 0 comments
Open

multi-staged optimization to support simple queries #115

zhouqingqing opened this issue Jun 11, 2020 · 0 comments

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zhouqingqing added a commit that referenced this issue Jun 16, 2020
@zhouqingqing
enable memo optimization by default
3119f28 
some left over issues by disable memo in these cases:
1. distributed plan disabled memo because property enforcement is not yet done for it;
2. bottom selection statements (like COPY, INSERT ... SELECT  etc) are disable because memo currently assumes selection statement only (#121).

Later we shall introduce multi-staged optimization to support simple queries without going through memo (#115).
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