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gen4: Fix sub query planning when the outer query is a dual query #10007

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merged 2 commits into from
Mar 30, 2022

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systay
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@systay systay commented Mar 30, 2022

Description

Fixes two different bugs -

  1. Queries with a dual subquery should not be replaced with literals when inside an EXISTS call
  2. When merging routes where one side is a reference route, we have to copy keyspace information as well

Related Issue(s)

Fixes #9900

Checklist

  • Should this PR be backported? Yes
  • Tests were added or are not required
  • Documentation was added or is not required

Signed-off-by: Andres Taylor <andres@planetscale.com>
…the keyspace

Signed-off-by: Andres Taylor <andres@planetscale.com>
@systay systay changed the title Fix 9900 gen4: Fix sub query planning when the outer query is a dual query Mar 30, 2022
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@GuptaManan100 GuptaManan100 left a comment

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LGTM! <3

vschema := &vschemaWrapper{
v: loadSchema(t, "schema_test.json", true),
keyspace: &vindexes.Keyspace{
Name: "second_user",
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I like the name of the keyspace 🤣

@systay systay merged commit ee1678d into vitessio:main Mar 30, 2022
@systay systay deleted the fix-9900 branch March 30, 2022 14:33
systay added a commit to planetscale/vitess that referenced this pull request Mar 30, 2022
…tessio#10007)

* fix: do not rewrite dual queries inside EXISTS
* fix: when merging routes with reference routing, we should also copy the keyspace

Signed-off-by: Andres Taylor <andres@planetscale.com>
derekperkins pushed a commit to derekperkins/vitess that referenced this pull request Mar 30, 2022
…tessio#10007)

* fix: do not rewrite dual queries inside EXISTS

Signed-off-by: Andres Taylor <andres@planetscale.com>

* fix: when merging routes with reference routing, we should also copy the keyspace

Signed-off-by: Andres Taylor <andres@planetscale.com>
Signed-off-by: Derek Perkins <derek@derekperkins.com>
# Conflicts:
#	go/vt/vtgate/planbuilder/testdata/select_cases.txt
systay added a commit that referenced this pull request Mar 31, 2022
…0007) (#10009)

* fix: do not rewrite dual queries inside EXISTS
* fix: when merging routes with reference routing, we should also copy the keyspace

Signed-off-by: Andres Taylor <andres@planetscale.com>
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vtgate: query regression sends EXISTS() queries to the wrong keyspace/shard
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