Merge pull request dresende#37 from kapouer/defaultValues

Allow insertion of empty row using default values

Author: dresende

lib/Dialects/mssql.js

@@ -64,3 +64,5 @@ exports.escapeVal = function (val, timeZone) {
 
 	return "'" + val.replace(/\'/g, "''") + "'";
 };
+
+exports.defaultValuesStmt = "DEFAULT VALUES";

lib/Dialects/mysql.js

@@ -113,3 +113,5 @@ function bufferToString(buffer) {
 
 	return "X'" + hex+ "'";
 }
+
+exports.defaultValuesStmt = "VALUES()";

lib/Dialects/postgresql.js

@@ -65,3 +65,5 @@ exports.escapeVal = function (val, timeZone) {
 	// Google 'postgresql standard_conforming_strings' for details.
 	return "'" + val.replace(/\'/g, "''") + "'";
 };
+
+exports.defaultValuesStmt = "DEFAULT VALUES";

lib/Dialects/sqlite.js

@@ -54,3 +54,5 @@ exports.escapeVal = function (val, timeZone) {
 	// Google 'postgresql standard_conforming_strings' for details.
 	return "'" + val.replace(/\'/g, "''") + "'";
 };
+
+exports.defaultValuesStmt = "DEFAULT VALUES";

lib/Insert.js

@@ -25,8 +25,12 @@ function InsertQuery(Dialect, opts) {
 					cols.push(Dialect.escapeId(k));
 					vals.push(Dialect.escapeVal(sql.set[k], opts.timezone));
 				}
-				query.push("(" + cols.join(", ") + ")");
-				query.push("VALUES (" + vals.join(", ") + ")");
+				if (cols.length == 0) {
+					query.push(Dialect.defaultValuesStmt);
+				} else {
+					query.push("(" + cols.join(", ") + ")");
+					query.push("VALUES (" + vals.join(", ") + ")");
+				}
 			}
 
 			return query.join(" ");