Online DDL/VReplication: support DROP+ADD column of same name #8337
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Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
shlomi-noach
added
Component: Query Serving
Component: VReplication
Type: CI/Build
Type: Enhancement
Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
Signed-off-by: Shlomi Noach <2607934+shlomi-noach@users.noreply.github.com>
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Description
It is valid (though not good practice, probably) to
DROPa columncandADDa new column also calledc. In this scenario, the columncin the before table has nothing to do withcin the after table.In this PR we import logic from
gh-ostto make sure Vreplication does not try to copy data between such column.We add the test
drop-null-add-not-nullto OnlineDDL/vrpelication suite.Related Issue(s)
Checklist