Changeset: 19c2a77efbe0 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=19c2a77efbe0
Added Files:
monetdb5/optimizer/opt_geospatial.c
monetdb5/optimizer/opt_geospatial.h
Branch: geo
Log Message:
geospatial optimiser source files
diffs (95 lines):
diff --git a/monetdb5/optimizer/opt_geospatial.c
b/monetdb5/optimizer/opt_geospatial.c
new file mode 100644
--- /dev/null
+++ b/monetdb5/optimizer/opt_geospatial.c
@@ -0,0 +1,53 @@
+#include "monetdb_config.h"
+#include "opt_geospatial.h"
+//#include "mal_instruction.h"
+//#include "mal_interpreter.h"
+
+
+int OPTgeospatialImplementation(Client cntxt, MalBlkPtr mb, MalStkPtr stk,
InstrPtr pci) {
+ int i=0, actions = 0;
+ int nextFreeSlot = mb->stop; //up to this there are instructions
+ InstrPtr *oldInstrPtr = mb->stmt; //pointer to the first instruction
+ int slimit = mb->ssize; //what is this?
+ InstrPtr newInstrPtr;
+ int newInstrReturnValue;
+
+ (void) pci;
+ (void) stk;
+ (void) cntxt;
+
+ //create new mal stack
+ if(newMalBlkStmt(mb, slimit) < 0)
+ return 0;
+
+
+ //iterate over the instructions and put them back in the stach
+ for(i=0; i<nextFreeSlot; i++) {
+
+ //chech the module and function name
+ if(getModuleId(oldInstrPtr[i]) &&
!strcasecmp(getModuleId(oldInstrPtr[i]),"batgeom")) {
+ if(strcasecmp(getFunctionId(oldInstrPtr[i]),
"contains") == 0) {
+
+ //create the new instruction
+ newInstrPtr = newStmt(mb, "batgeom",
"MBRfilter");
+ //create the return variable of the new
instruction
+ newInstrReturnValue = newVariable(mb,
GDKstrdup("result"), newBatType(TYPE_oid, getArgType(mb,oldInstrPtr[i],2)));
+ //set the return and input arguments of the new
instruction
+ setReturnArgument(newInstrPtr,
newInstrReturnValue);
+ newInstrPtr = pushArgument(mb, newInstrPtr,
getArg(oldInstrPtr[i],1));
+ newInstrPtr = pushArgument(mb, newInstrPtr,
getArg(oldInstrPtr[i],2));
+
+ //replace the second argument of the contains
function with the results of the new instruction (the filtered results)
+ delArgument(oldInstrPtr[i], 2);
+ pushInstruction(mb, oldInstrPtr[i]);
+ setArgument(mb, oldInstrPtr[i], 2,
newInstrReturnValue);
+
+ actions++;
+ }
+ } else //put all other instructions back
+ pushInstruction(mb, oldInstrPtr[i]);
+ }
+
+ GDKfree(oldInstrPtr);
+ return actions;
+}
diff --git a/monetdb5/optimizer/opt_geospatial.h
b/monetdb5/optimizer/opt_geospatial.h
new file mode 100644
--- /dev/null
+++ b/monetdb5/optimizer/opt_geospatial.h
@@ -0,0 +1,32 @@
+/*
+ * The contents of this file are subject to the MonetDB Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.monetdb.org/Legal/MonetDBLicense
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is the MonetDB Database System.
+ *
+ * The Initial Developer of the Original Code is CWI.
+ * Portions created by CWI are Copyright (C) 1997-July 2008 CWI.
+ * Copyright August 2008-2014 MonetDB B.V.
+ * All Rights Reserved.
+ */
+
+#ifndef _OPT_GEOM_
+#define _OPT_GEOM_
+#include "opt_prelude.h"
+#include "opt_support.h"
+#include "mal_interpreter.h"
+#include "mal_instruction.h"
+#include "mal_function.h"
+
+opt_export int OPTgeospatialImplementation(Client cntxt, MalBlkPtr mb,
MalStkPtr stk, InstrPtr pci);
+
+#define OPTDEBUGgeospatial if ( optDebug & (1 <<DEBUG_OPT_GEOSPATIAL) )
+
+#endif
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