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parser that could handle "FROM... SELECT..." as well as "SELECT... FROM..." - Mailing list pgsql-sql

From Marius Andreiana
Subject parser that could handle "FROM... SELECT..." as well as "SELECT... FROM..."
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Msg-id CAPUEYuYuJSRE_c_k+uBQReKUDZOMb3niiJ3mPuDP6AFdK_+piw@mail.gmail.com
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Responses Re: parser that could handle "FROM... SELECT..." as well as"SELECT... FROM..."  (Pavel Stehule <pavel.stehule@gmail.com>)
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Hello Postgres folks,

After reading
I'd also like to write "FROM... SELECT..." instead of "SELECT... FROM...".

Postgres doesn't support this though. Would it be possible to please add parsing support for this syntax as well?

Somebody mentioned:
Engines don’t run sql directly. They make an AST, make an intermediate representation of instructions and then execute.
So if it results in same AST, the parser should be flexible. 

Thanks!
Marius

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