Changeset: f59b25e0dd88 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=f59b25e0dd88
Modified Files:
sql/backends/monet5/sql_statement.c
Branch: default
Log Message:
only nullif still has rewrite in exp_nop
diffs (35 lines):
diff --git a/sql/backends/monet5/sql_statement.c
b/sql/backends/monet5/sql_statement.c
--- a/sql/backends/monet5/sql_statement.c
+++ b/sql/backends/monet5/sql_statement.c
@@ -3194,7 +3194,7 @@ stmt_Nop(backend *be, stmt *ops, sql_sub
}
}
- /* handle coalesce and nullif */
+ /* handle nullif */
if (list_length(ops->op4.lval) == 2 &&
f->func->mod && strcmp(f->func->mod, "") == 0 && f->func->imp
&& strcmp(f->func->imp, "") == 0) {
stmt *e1 = ops->op4.lval->h->data;
@@ -3202,21 +3202,7 @@ stmt_Nop(backend *be, stmt *ops, sql_sub
int nrcols = 0;
nrcols = e1->nrcols>e2->nrcols ? e1->nrcols:e2->nrcols;
- /* nrcols */
- //coalesce(e1,e2) -> ifthenelse(isnil(e1),e2,e1)
- if (strcmp(f->func->base.name, "coalesce") == 0) {
- assert(0);
- str mod = (!nrcols)?calcRef:batcalcRef;
- q = newStmt(mb, e1->nrcols?mod:calcRef, "isnil");
- q = pushArgument(mb, q, e1->nr);
- int nr = getDestVar(q);
-
- q = newStmt(mb, mod, "ifthenelse");
- q = pushArgument(mb, q, nr);
- q = pushArgument(mb, q, e2->nr);
- q = pushArgument(mb, q, e1->nr);
- }
- //nullif(e1,e2) -> ifthenelse(e1==e2),NULL,e1)
+ /* nullif(e1,e2) -> ifthenelse(e1==e2),NULL,e1) */
if (strcmp(f->func->base.name, "nullif") == 0) {
str mod = (!nrcols)?calcRef:batcalcRef;
sql_subtype *t = tail_type(e1);
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