From: | Amit Langote <amitlangote09(at)gmail(dot)com> |
---|---|
To: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Subject: | Re: SQL/JSON revisited |
Date: | 2022-12-28 07:31:23 |
Message-ID: | CA+HiwqHjUA=wc8yfZdEC2GZNzHFDmcq9aPpZ0cWNAbZfDWOLFA@mail.gmail.com |
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On Wed, Dec 28, 2022 at 4:28 PM Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>
> Hi,
>
> Rebased the SQL/JSON patches over the latest HEAD. I've decided to
> keep the same division of code into individual commits as that
> mentioned in the revert commit 2f2b18bd3f, squashing fixup commits in
> that list into the appropriate feature commits.
>
> The main difference from the patches as they were committed into v15
> is that JsonExpr evaluation no longer needs to use sub-transactions,
> thanks to the work done recently to handle type errors softly. I've
> made the new code pass an ErrorSaveContext into the type-conversion
> related functions as needed and also added an ExecEvalExprSafe() to
> evaluate sub-expressions of JsonExpr that might contain expressions
> that call type-conversion functions, such as CoerceViaIO contained in
> JsonCoercion nodes. ExecExprEvalSafe() is based on one of the patches
> that Nikita Glukhov had submitted in a previous discussion about
> redesigning SQL/JSON expression evaluation [1]. Though, I think that
> new interface will become unnecessary after I have finished rebasing
> my patches to remove subsidiary ExprStates of JsonExprState that we
> had also discussed back in [2].
>
> Adding this to January CF.
Done.
https://commitfest.postgresql.org/41/4086/
--
Thanks, Amit Langote
EDB: http://www.enterprisedb.com
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