Implement sorted column store merge

hyrise / hyrise-v1

HYRISE In-Memory Hybrid Storage Engine (archived, now developed in hyrise/hyrise repo)

https://github.com/hyrise/hyrise

MIT License

89 stars 44 forks source link

Closed Bensk1 closed 9 years ago

Bensk1 commented 9 years ago

This implements mainly the sorted column store merge. It includes as well some code beautification and performance optimisation.

martinfaust commented 9 years ago

@Bensk1 : Could you please add a 4 column testcase (ABCD), where the sort order is defined by B-C-A?

Bensk1 commented 9 years ago

martinfaust commented 9 years ago

@Bensk1 Nope. Can you build data that stresses the cascaded sort even more, e.g. Where the sorted results would be

3,4,5 4,4,5 3,5,5

if sorted by BCA?

cid.addField(1);
cid.addField(2);
cid.addField(0); the one and only thing that defines the sort order for the main?

Bensk1 commented 9 years ago

@martinfaust Should be done.

martinfaust commented 9 years ago

@Bensk1 Thanks! Can you please squash your commits?