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[PATCH] Add error_on_null() to produce an error if the input is null - Mailing list pgsql-hackers

From Joel Jacobson
Subject [PATCH] Add error_on_null() to produce an error if the input is null
Date
Msg-id ece8c6d1-2ab1-45d5-ba12-8dec96fc8886@app.fastmail.com
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Responses Re: [PATCH] Add error_on_null() to produce an error if the input is null
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Dear fellow hackers,

This polymorphic function produces an error if the input value is null,
otherwise it returns the input value unchanged.

This need for this function originates from the discussion
"Assert single row returning SQL-standard functions" [1].

/Joel

[1] https://www.postgresql.org/message-id/flat/9233b657-696f-430f-9557-dc602a2b9e0e%40app.fastmail.com
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