[MCOL-1343] SET @value problem with ColumnStore Created: 2018-04-16 Updated: 2019-07-10 Resolved: 2019-07-10 |
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| Status: | Closed |
| Project: | MariaDB ColumnStore |
| Component/s: | N/A |
| Affects Version/s: | 1.1.2 |
| Fix Version/s: | Icebox |
| Type: | Bug | Priority: | Major |
| Reporter: | Todd Stoffel (Inactive) | Assignee: | Unassigned |
| Resolution: | Won't Fix | Votes: | 0 |
| Labels: | None | ||
| Environment: |
CentOS 7 |
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| Description |
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I have a customer complaining that setting SQL variables from ColumnStore takes a very long time. For instance: This is a ColumnStore table: `nucleus`.`neustar_pcp`; This query: SELECT COUNT(`HHRECID`) FROM `nucleus`.`neustar_pcp`; Takes only milliseconds to run. However this query: SET @rowcnt = (SELECT COUNT(`HHRECID`) FROM `nucleus`.`neustar_pcp`); Takes 1 minute and 47 seconds to run. |
| Comments |
| Comment by Andrew Hutchings (Inactive) [ 2018-04-16 ] |
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tentatively added this to 1.1.5 in case this is something we can fix without too much modification to vtable. |
| Comment by Andrew Hutchings (Inactive) [ 2019-07-10 ] |
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Can't fix for < 1.4. Will go away in 1.4 |