Use the gen4 planner for queries with outer joins #9657
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frouioui
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Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Andres Taylor <andres@planetscale.com>
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Description
Routing for queries that contain outer join was not being handled correctly.
It would require a lot of changes to support these queries correctly in V3, so instead this fix makes it so the gen4 planner is used in the presence of outer joins.
If you know that you want to use the v3 planner, that can still be accomplished by using the query hint
/*vt+ PLANNER=v3 */Related Issue(s)
Fixes #7700