Add args column to view backing tables#5300
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kistz
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Jun 15, 2026
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This looks very nice!
Hashing is correctly encapsulated and all call sites use the appropriate methods as far as i saw :>
Shubham8287
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Jun 15, 2026
Shubham8287
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Jun 15, 2026
Shubham8287
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Jun 15, 2026
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Description of Changes
Review #5287 first.
This patch updates view backing table schemas to have a single private column
arg_hash. Previously sender-scoped views had asendercolumn for the calling identity, however now that's been replaced with a single unifiedarg_hashcolumn that encodes the calling identity within it.When we add parameterized views, the view args will also be encoded in this hash and stored in this column.
This column exists for both anonymous and sender scoped views meaning that the backing tables for all views now have the same number of private columns - one.
This hash is now used as a runtime variable that the query engine uses to evaluate view table scans.
In order to keep the diff small, this patch does update view read sets with this new hash value. That change has a larger blast radius and will be done in the next set of changes.
API and ABI breaking changes
N/A
Expected complexity level and risk
2
Testing
Existing coverage.