Changeset: 1b28cea3141d for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/1b28cea3141d
Modified Files:
sql/server/rel_optimize_sel.c
Branch: cmp-or-patterns
Log Message:
Renames structs and struct members
diffs (170 lines):
diff --git a/sql/server/rel_optimize_sel.c b/sql/server/rel_optimize_sel.c
--- a/sql/server/rel_optimize_sel.c
+++ b/sql/server/rel_optimize_sel.c
@@ -524,17 +524,23 @@ exp_cmp_eq_unique_id(sql_exp *e)
return exp_unique_id(e->l);
}
-typedef struct exp_eq_atoms {
+typedef struct exp_eq_col_values {
+ /* we need ->first in order to remove it from the list of cmp_eq exps
+ * in case that we find another occurrence (with a different value)
+ */
sql_exp* first;
- sql_exp* e;
- list *l;
-} ea;
-
-typedef struct exp_eq_multi_cols_atoms {
+ sql_exp* col; /* column */
+ list *vs; /* list of values */
+} eq_cv;
+
+typedef struct exp_eq_multi_col_values {
+ /* we need ->first in order to remove it from the list of multi col
+ * cmp_eq exps in case that we find another occurrence (with different
values)
+ */
list *first;
- list *ces; /* list of col exps */
- list *gvs; /* list of lists of atoms */
-} mca;
+ list *cols; /* list of col exps */
+ list *lvs; /* list of lists of values */
+} eq_mcv;
static bool
detect_col_cmp_eqs(mvc *sql, list *eqs, sql_hash *eqh)
@@ -551,26 +557,26 @@ detect_col_cmp_eqs(mvc *sql, list *eqs,
sql_hash_e *he = eqh->buckets[key&(eqh->size-1)];
for (;he && !found; he = he->chain) {
- ea *eas = he->value;
- if(!exp_equal(le, eas->e)){
- eas->l = append(eas->l, re);
+ eq_cv *cv = he->value;
+ if(!exp_equal(le, cv->col)){
+ cv->vs = append(cv->vs, re);
found = col_multivalue_cmp_eq = true;
}
- if (eas->first) {
- list_remove_data(eqs, NULL, eas->first);
- eas->first = NULL;
+ if (cv->first) {
+ list_remove_data(eqs, NULL, cv->first);
+ cv->first = NULL;
}
list_remove_node(eqs, NULL, n);
}
if (!found) {
- ea *eas = SA_NEW(sql->sa, ea);
- eas->first = e;
- eas->l = sa_list(sql->sa);
- eas->l = append(eas->l, re);
- eas->e = le;
-
- hash_add(eqh, key, eas);
+ eq_cv *cv = SA_NEW(sql->sa, eq_cv);
+ cv->first = e;
+ cv->vs = sa_list(sql->sa);
+ cv->vs = append(cv->vs, re);
+ cv->col = le;
+
+ hash_add(eqh, key, cv);
}
}
return col_multivalue_cmp_eq;
@@ -614,8 +620,8 @@ detect_multicol_cmp_eqs(mvc *sql, list *
for (;he && !found; he = he->chain) {
/* compare the values of the hash_entry with the cols
under cmp_eq from the list */
bool same_cols = true;
- mca *mcas = he->value;
- for (node *m = sl->h, *k = mcas->ces->h; m && k &&
same_cols; m = m->next, k = k->next) {
+ eq_mcv *mcv = he->value;
+ for (node *m = sl->h, *k = mcv->cols->h; m && k &&
same_cols; m = m->next, k = k->next) {
sql_exp *col_exp = ((sql_exp*)m->data)->l;
if (exp_equal(col_exp, k->data))
same_cols = false;
@@ -627,33 +633,33 @@ detect_multicol_cmp_eqs(mvc *sql, list *
list *atms = sa_list(sql->sa);
for (node *m = sl->h; m; m = m->next)
atms = append(atms,
((sql_exp*)m->data)->r);
- mcas->gvs = append(mcas->gvs, atms);
+ mcv->lvs = append(mcv->lvs, atms);
/* remove this and the previous occurrence
(which means that's the first time
* that we found the *same* multi cmp_eq exp)
*/
- if (mcas->first) {
- list_remove_data(mce_ands, NULL,
mcas->first);
- mcas->first = NULL;
+ if (mcv->first) {
+ list_remove_data(mce_ands, NULL,
mcv->first);
+ mcv->first = NULL;
}
list_remove_data(mce_ands, NULL, sl);
}
}
if (!found) {
- mca *mcas = SA_NEW(sql->sa, mca);
+ eq_mcv *mcv = SA_NEW(sql->sa, eq_mcv);
// TODO: explain!!
- mcas->first = sl;
- mcas->ces = sa_list(sql->sa);
+ mcv->first = sl;
+ mcv->cols = sa_list(sql->sa);
for (node *m = sl->h; m; m = m->next)
- mcas->ces = append(mcas->ces,
((sql_exp*)m->data)->l);
- /* for (group values) gv create a list and append it to
the gvs list */
+ mcv->cols = append(mcv->cols,
((sql_exp*)m->data)->l);
+ /* for (group values) gv create a list and append it to
the lvs list */
list *atms = sa_list(sql->sa);
for (node *m = sl->h; m; m = m->next)
atms = append(atms, ((sql_exp*)m->data)->r);
- mcas->gvs = sa_list(sql->sa);
- mcas->gvs = append(mcas->gvs, atms);
-
- hash_add(meqh, key, mcas);
+ mcv->lvs = sa_list(sql->sa);
+ mcv->lvs = append(mcv->lvs, atms);
+
+ hash_add(meqh, key, mcv);
}
}
return multi_multivalue_cmp_eq;
@@ -713,12 +719,12 @@ generate_single_col_cmp_in(mvc *sql, sql
sql_hash_e *he = eqh->buckets[i];
while (he) {
- ea *eas = he->value;
+ eq_cv *cv = he->value;
/* only if there are multiple cmp_eq atoms for this col
turn them into a cmp_in */
- if (list_length(eas->l) > 1)
- ins = append(ins, exp_in(sql->sa, eas->e,
eas->l, cmp_in));
+ if (list_length(cv->vs) > 1)
+ ins = append(ins, exp_in(sql->sa, cv->col,
cv->vs, cmp_in));
else
- ins = append(ins, exp_compare(sql->sa, eas->e,
eas->l->h->data, cmp_equal));
+ ins = append(ins, exp_compare(sql->sa, cv->col,
cv->vs->h->data, cmp_equal));
he = he->chain;
}
}
@@ -736,13 +742,13 @@ generate_multi_col_cmp_in(mvc *sql, sql_
for (int i = 0; i < meqh->size; i++) {
sql_hash_e *he = meqh->buckets[i];
while (he) {
- mca *mcas = he->value;
+ eq_mcv *mcv = he->value;
/* NOTE: multivalue cmp_eq expressions with a single
entry are still in mce_ands */
- if (list_length(mcas->gvs) > 1) {
- sql_exp *mc = exp_label(sql->sa,
exp_values(sql->sa, mcas->ces), ++sql->label);
- for (node *a = mcas->gvs->h; a; a = a->next)
+ if (list_length(mcv->lvs) > 1) {
+ sql_exp *mc = exp_label(sql->sa,
exp_values(sql->sa, mcv->cols), ++sql->label);
+ for (node *a = mcv->lvs->h; a; a = a->next)
a->data = exp_values(sql->sa, a->data);
- ins = append(ins, exp_in(sql->sa, mc,
mcas->gvs, cmp_in));
+ ins = append(ins, exp_in(sql->sa, mc, mcv->lvs,
cmp_in));
}
he = he->chain;
}
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