[tracker/parser] SPARQL: Add type information for relative expressions

[Jürg Billeter <juergbi src gnome org>]

commit 75542f0cd87ac959541725f36a1c3d3a537045bd
Author: Jürg Billeter <j bitron ch>
Date:   Wed Aug 12 14:17:27 2009 +0200

    SPARQL: Add type information for relative expressions

 src/libtracker-data/tracker-sparql-query.vala |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-query.vala b/src/libtracker-data/tracker-sparql-query.vala
index fbe30f4..bef39eb 100644
--- a/src/libtracker-data/tracker-sparql-query.vala
+++ b/src/libtracker-data/tracker-sparql-query.vala
@@ -1324,40 +1324,47 @@ public class Tracker.SparqlQuery : Object {
 		return translate_additive_expression (sql);
 	}
 
-	void translate_relational_expression (StringBuilder sql) throws SparqlError {
+	DataType translate_relational_expression (StringBuilder sql) throws SparqlError {
 		long begin = sql.len;
-		translate_numeric_expression (sql);
+		var optype = translate_numeric_expression (sql);
 		if (accept (SparqlTokenType.OP_GE)) {
 			sql.insert (begin, "(");
 			sql.append (" >= ");
 			translate_numeric_expression (sql);
 			sql.append (")");
+			return DataType.BOOLEAN;
 		} else if (accept (SparqlTokenType.OP_EQ)) {
 			sql.insert (begin, "(");
 			sql.append (" = ");
 			translate_numeric_expression (sql);
 			sql.append (")");
+			return DataType.BOOLEAN;
 		} else if (accept (SparqlTokenType.OP_NE)) {
 			sql.insert (begin, "(");
 			sql.append (" <> ");
 			translate_numeric_expression (sql);
 			sql.append (")");
+			return DataType.BOOLEAN;
 		} else if (accept (SparqlTokenType.OP_LT)) {
 			sql.insert (begin, "(");
 			sql.append (" < ");
 			translate_numeric_expression (sql);
 			sql.append (")");
+			return DataType.BOOLEAN;
 		} else if (accept (SparqlTokenType.OP_LE)) {
 			sql.insert (begin, "(");
 			sql.append (" <= ");
 			translate_numeric_expression (sql);
 			sql.append (")");
+			return DataType.BOOLEAN;
 		} else if (accept (SparqlTokenType.OP_GT)) {
 			sql.insert (begin, "(");
 			sql.append (" > ");
 			translate_numeric_expression (sql);
 			sql.append (")");
+			return DataType.BOOLEAN;
 		}
+		return optype;
 	}
 
 	void translate_value_logical (StringBuilder sql) throws SparqlError {