feat(#2348, #2997): add sqlc.nembed() for nullable embeds#4341
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luismingati wants to merge 1 commit intosqlc-dev:mainfrom
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feat(#2348, #2997): add sqlc.nembed() for nullable embeds#4341luismingati wants to merge 1 commit intosqlc-dev:mainfrom
luismingati wants to merge 1 commit intosqlc-dev:mainfrom
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…beds Introduces `sqlc.nembed()` function that generates nullable (pointer) embed structs in Go codegen. When a LEFT JOIN may produce NULL rows, nembed scans into temporary pointer variables and conditionally constructs the embedded struct only when at least one field is non-nil. Closes sqlc-dev#2348 Closes sqlc-dev#2997 Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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Summary
sqlc.nembed()function for nullable embed support in Go codegensqlc.nembed(table)generates a pointer-typed embed struct (*Struct) that isnilwhen all joined columns are NULLpgxanddatabase/sql(stdlib) drivers, including batch queriesMotivation
Closes #2348
Closes #2997
When using
sqlc.embed()with LEFT JOINs, the embedded struct is always populated even when the joined row doesn't exist, resulting in zero-valued fields.sqlc.nembed()(nullable embed) solves this by returning a pointer that isnilwhen no matching row exists.