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Today's Topics:
1. Re: MonetDB: Oct2012 - fixed bug 3209, ie first crossproduct
if the ... (Ying Zhang)
----------------------------------------------------------------------
Message: 1
Date: Sun, 16 Dec 2012 20:08:01 +0100
From: Ying Zhang <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: Re: MonetDB: Oct2012 - fixed bug 3209, ie first crossproduct
if the ...
Message-ID: <[email protected]>
Content-Type: text/plain; charset=windows-1252
Hai Niels,
Your fix works in Feb2013, but not in Oct2012?
Jennie
On Dec 15, 2012, at 12:29, Niels Nes wrote:
> Changeset: 8650dce52dd8 for MonetDB
> URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=8650dce52dd8
> Modified Files:
> sql/server/rel_exp.c
> sql/server/rel_exp.h
> Branch: Oct2012
> Log Message:
>
> fixed bug 3209, ie first crossproduct if the join expression consists
> of functions (these should have been pushed down, whenever possible).
>
>
> diffs (59 lines):
>
> diff --git a/sql/server/rel_exp.c b/sql/server/rel_exp.c
> --- a/sql/server/rel_exp.c
> +++ b/sql/server/rel_exp.c
> @@ -1032,6 +1032,44 @@ exp_is_atom( sql_exp *e )
> }
>
> static int
> +exps_has_func( list *exps)
> +{
> + node *n;
> + int has_func = 0;
> +
> + for(n=exps->h; n && !has_func; n=n->next)
> + has_func |= exp_has_func(n->data);
> + return has_func;
> +}
> +
> +int
> +exp_has_func( sql_exp *e )
> +{
> + switch (e->type) {
> + case e_atom:
> + return 0;
> + case e_convert:
> + return exp_has_func(e->l);
> + case e_func:
> + case e_aggr:
> + return 1;
> + case e_cmp:
> + if (e->flag == cmp_or) {
> + return (exps_has_func(e->l) || exps_has_func(e->r));
> + } else if (e->flag == cmp_in || e->flag == cmp_notin || e->flag
> == cmp_filter) {
> + return (exp_has_func(e->l) || exps_has_func(e->r));
> + } else {
> + return (exp_has_func(e->l) || exp_has_func(e->r) ||
> + (e->f && exp_has_func(e->f)));
> + }
> + case e_column:
> + case e_psm:
> + return 0;
> + }
> + return 0;
> +}
> +
> +static int
> exp_key( sql_exp *e )
> {
> if (e->name)
> diff --git a/sql/server/rel_exp.h b/sql/server/rel_exp.h
> --- a/sql/server/rel_exp.h
> +++ b/sql/server/rel_exp.h
> @@ -105,6 +105,7 @@ extern int exp_is_eqjoin(sql_exp *e);
> extern int exp_is_correlation(sql_exp *e, sql_rel *r );
> extern int exp_is_join_exp(sql_exp *e);
> extern int exp_is_atom(sql_exp *e);
> +extern int exp_has_func(sql_exp *e);
>
> extern sql_exp *exps_bind_column( list *exps, char *cname, int *ambiguous);
> extern sql_exp *exps_bind_column2( list *exps, char *rname, char *cname);
> _______________________________________________
> checkin-list mailing list
> [email protected]
> http://mail.monetdb.org/mailman/listinfo/checkin-list
------------------------------
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