optimize hash table construction for UM joins
(MCOL-3586)
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| Status: | Closed |
| Project: | MariaDB ColumnStore |
| Component/s: | ExeMgr |
| Affects Version/s: | None |
| Fix Version/s: | 1.4.0 |
| Type: | Sub-Task | Priority: | Major |
| Reporter: | Patrick LeBlanc (Inactive) | Assignee: | Patrick LeBlanc (Inactive) |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Comments |
| Comment by Patrick LeBlanc (Inactive) [ 2019-11-14 ] |
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the dbt3 queries use a lot of large joins, will use that as the benchmark |
| Comment by Patrick LeBlanc (Inactive) [ 2019-11-22 ] |
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Got it humming. Initial test, joining l_orderkey to o_orderkey shows nearly linear scaling. If the keys don't hash evenly the scaling ratio will fall, but not concerned with that right now. |
[MCOL-3604]