On 6/28/2005 5:55 AM, Peter Eisentraut wrote:
Neil Conway wrote:
I agree the current parser is a hack, but it's difficult to see how
else it could be implemented.
Since the lexical structure of SQL/PSM seems to be about the same as the
main SQL, maybe you could get away with having the main parser just
accepting any tokens at the point where the function body belongs and
make it count BEGIN's and END's or whatever nesting elements there
might be.
Which then would require that SPI gets another interface added that
allows to feed in a token sequence instead of a query string.
After thinking more about what I wrote yesterday I noticed that we would
lose the potential for query plan recompilation after system cache
invalidation if we do not keep the queries inside of a PL function in
some sort of source code (lexer tokens still are).
Jan
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