| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Wen Yi <chuxuec(at)outlook(dot)com> |
| Cc: | PostgreSQL General <pgsql-general(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: What type of Compiler to SQL? Memory-Image (Load-and-Go) Format? |
| Date: | 2023-05-05 01:19:30 |
| Message-ID: | ZFRZoly4e3hIuZ29@momjian.us |
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| Thread: | |
| Lists: | pgsql-general |
On Thu, May 4, 2023 at 09:16:20PM -0400, Bruce Momjian wrote:
> Lex and yacc load command-specific structures, or a Query structure for
> SELECT, INSERT, UPDATE, DELETE, MERGE.
>
> The Query structure is converted into a Plan which is executed by the
> executor. It is not compiled into assembly language. See this:
>
> https://www.postgresql.org/developer/backend/
Oh, this might help too:
https://momjian.us/main/writings/pgsql/internalpics.pdf
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com
Embrace your flaws. They make you human, rather than perfect,
which you will never be.
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