opgen: added a bool field in struct opgen.transition #90719
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This change is |
postamar
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Oct 27, 2022
| return tstn.from | ||
| } | ||
| // All transitions results from `equiv(xxx)` specs. Return `to` of the last transition. | ||
| return t.transitions[len(t.transitions)-1].to |
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Wouldn't return target be the same thing here, but simpler?
This PR adds a bool field in struct opgen.transition that indicates
whether it results from a `equiv(xx)` transition spec in the opgen file.
It will be useful for a test where we need to find the inital
status on a adding/dropping path. Without such a change, it can be
problematic if we have a `equiv(xx)` spec as the first transition.
E.g.
ToAbsent(
PUBLIC,
equiv(VALIDATED),
to(WRITE_ONLY),
to(ABSENT),
)
Without this change, the inital status will confusingly be `VALIDATED`,
and the next status will be `PUBLIC`.
With this change, the initial status will be `PUBLIC`, and the next
status will be `WRITE_ONLY`.
We also added some comments when we make transitions from the specs.
Release note: None
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Xiang-Gu
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Oct 31, 2022
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I think it's generally good so I'm going to merge it.
Reviewable status:
complete! 0 of 0 LGTMs obtained (waiting on @postamar)
pkg/sql/schemachanger/scplan/internal/opgen/op_gen.go line 154 at r1 (raw file):
Previously, postamar (Marius Posta) wrote…
Wouldn't
return targetbe the same thing here, but simpler?
That's correct! Will change it.
|
TFTR! bors r+ |
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Build succeeded: |
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This PR adds a bool field in struct opgen.transition that indicates whether it results from a
equiv(xx)transition spec in the opgen file. It will be useful for a test where we need to find the inital status on a adding/dropping path. Without such a change, it can be problematic if we have aequiv(xx)spec as the first transition. E.g.Without this change, the inital status will confusingly be
VALIDATED, and the next status will bePUBLIC.With this change, the initial status will be
PUBLIC, and the next status will beWRITE_ONLY.We also added some comments when we make transitions from the specs.
Epic: None
Release note: None