On 2013-10-07 16:00:54 +0200, Pavel Stehule wrote: > /* > * We need to do subscript evaluation, which > might require > @@ -4321,6 +4322,14 @@ exec_assign_value(PLpgSQL_execstate *estate, > oldarrayval = (ArrayType *) > DatumGetPointer(oldarraydatum); > > /* > + * support fast update for array scalar > variable is enabled only > + * when target is a scalar variable and > variable holds a local > + * copy of some array. > + */ > + inplace_update = (((PLpgSQL_datum *) > target)->dtype == PLPGSQL_DTYPE_VAR > + && ((PLpgSQL_var *) > target)->freeval); > + > + /* > * Build the modified array value. > */
Will this recognize if the local Datum is just a reference to an external toast Datum (i.e. varattrib_1b_e)? I don't know much about plpgsql's implementation, so please excuse if the question is stupid. Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
