Changeset: f6f06f44ad78 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=f6f06f44ad78
Modified Files:
monetdb5/optimizer/opt_prelude.mx
monetdb5/optimizer/opt_support.mx
Branch: default
Log Message:
A safe SQL function
Using during code generation to upgrade a scalar into a singleton BAT.
diffs (38 lines):
diff --git a/monetdb5/optimizer/opt_prelude.mx
b/monetdb5/optimizer/opt_prelude.mx
--- a/monetdb5/optimizer/opt_prelude.mx
+++ b/monetdb5/optimizer/opt_prelude.mx
@@ -178,6 +178,7 @@
opt_export str setAccessRef;
opt_export str setWriteModeRef;
opt_export str sliceRef;
+opt_export str singleRef;
opt_export str sortHRef;
opt_export str sortHTRef;
opt_export str sortRef;
@@ -395,6 +396,7 @@
str setAccessRef;
str setWriteModeRef;
str sliceRef;
+str singleRef;
str sortHRef;
str sortHTRef;
str sortRef;
@@ -608,6 +610,7 @@
setAccessRef = putName("setAccess",9);
setWriteModeRef= putName("setWriteMode",12);
sliceRef = putName("slice",5);
+ singleRef = putName("single",6);
sortHRef = putName("sortH",5);
sortHTRef = putName("sortHT",6);
sortRef = putName("sort",4);
diff --git a/monetdb5/optimizer/opt_support.mx
b/monetdb5/optimizer/opt_support.mx
--- a/monetdb5/optimizer/opt_support.mx
+++ b/monetdb5/optimizer/opt_support.mx
@@ -1325,6 +1325,7 @@
if (getFunctionId(p) == not_uniqueRef) return FALSE;
if (getFunctionId(p) == zero_or_oneRef) return FALSE;
if (getFunctionId(p) == mvcRef) return FALSE;
+ if (getFunctionId(p) == singleRef) return FALSE;
/* the update instructions for SQL has side effects.
whether this is relevant should be explicitly checked
in the environment of the call */
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