Update of /cvsroot/monetdb/pathfinder/compiler/algebra
In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv17640/compiler/algebra
Modified Files:
builtins.c
Log Message:
Implementation of the fn:error(string?, string) built-in function.
Index: builtins.c
===================================================================
RCS file: /cvsroot/monetdb/pathfinder/compiler/algebra/builtins.c,v
retrieving revision 1.68
retrieving revision 1.69
diff -u -d -r1.68 -r1.69
--- builtins.c 19 Dec 2007 22:39:04 -0000 1.68
+++ builtins.c 27 Dec 2007 13:07:13 -0000 1.69
@@ -629,6 +629,20 @@
/* --------------------- */
/**
+ * Build up operator tree for built-in function 'fn:error()'.
+ */
+struct PFla_pair_t
+PFbui_fn_error_empty (const PFla_op_t *loop, bool ordering,
+ struct PFla_pair_t *args)
+{
+ (void) loop; (void) ordering; (void) args;
+
+ return (struct PFla_pair_t) {
+ .rel = NULL,
+ .frag = PFla_empty_set ()};
+}
+
+/**
* Build up operator tree for built-in function 'fn:error(string)'.
*/
struct PFla_pair_t
@@ -648,10 +662,36 @@
PFbui_fn_error_str (const PFla_op_t *loop, bool ordering,
struct PFla_pair_t *args)
{
- (void) loop; (void) ordering; (void) args;
+ (void) loop; (void) ordering;
return (struct PFla_pair_t) {
- .rel = NULL,
+ .rel = error(
+ project (
+ fun_1to1 (
+ eqjoin (
+ disjunion (
+ args[0].rel,
+ attach (
+ attach (
+ difference (
+ loop,
+ project (
+ args[0].rel,
+ proj (att_iter, att_iter))),
+ att_pos, lit_nat (1)),
+ att_item, lit_str (""))),
+ project (args[1].rel,
+ proj (att_iter1, att_iter),
+ proj (att_item1, att_item)),
+ att_iter,
+ att_iter1),
+ alg_fun_fn_concat,
+ att_res,
+ attlist(att_item, att_item1)),
+ proj (att_iter, att_iter),
+ proj (att_pos, att_pos),
+ proj (att_item, att_res)),
+ att_item),
.frag = PFla_empty_set ()};
}
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