main entry point for queries?

hello

i am trying to understand the source code of
postgresql.
Whenever a user enters a query, whether from the
Socket end or the interactive back end, which function
is always invoked that would start manipulation of
that query...

i ve noticed that the primitive parsing is done by the
raw_parser() function which is called by
pg_parse_query() is pg_parse_query() the main entry
point for all queries?

thank you

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