[MDEV-14980] ColumnStore VTable support as an optimizer flag Created: 2018-01-17 Updated: 2018-11-22 Resolved: 2018-11-22 |
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| Status: | Closed |
| Project: | MariaDB Server |
| Component/s: | N/A |
| Fix Version/s: | N/A |
| Type: | Task | Priority: | Minor |
| Reporter: | Andrew Hutchings (Inactive) | Assignee: | Unassigned |
| Resolution: | Won't Do | Votes: | 0 |
| Labels: | None | ||
| Description |
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A flag is needed for ColumnStore in the MariaDB server to turn on/off vtable mode. VTable mode should push down the condition for an entire query into ColumnStore. if a ColumnStore table is detected as part of the query. It would short-circuit the join execution and MariaDB would just request rows from rnd_* functions. This can be something that is surrounded by an ifdef so is only compiled in on ColumnStore builds of MariaDB. |