diff --git a/lib/discovery.js b/lib/discovery.js
index e89e7d4..82b7665 100644
--- a/lib/discovery.js
+++ b/lib/discovery.js
@@ -106,22 +106,6 @@ function mixinDiscovery(MySQL) {
         });
     };
 
-    /**
-     * Discover the tables/views synchronously
-     * @param {Object} options The options for discovery
-     */
-    MySQL.prototype.discoverModelDefinitionsSync = function (options) {
-        options = options || {};
-        var sqlTables = queryTables(options);
-        var tables = this.querySync(sqlTables);
-        var sqlViews = queryViews(options);
-        if (sqlViews) {
-            var views = this.querySync(sqlViews);
-            tables = tables.concat(views);
-        }
-        return tables;
-    };
-
     /*!
      * Normalize the arguments
      * @param table string, required
@@ -201,28 +185,6 @@ function mixinDiscovery(MySQL) {
         this.query(sql, callback);
     };
 
-    /**
-     * Discover model properties from a table synchronously
-     * @param {String} table The table name
-     * @param {Object} options The options for discovery
-     * @return {Object[]} The results
-     *
-     */
-    MySQL.prototype.discoverModelPropertiesSync = function (table, options) {
-        var args = getArgs(table, options);
-        var owner = args.owner;
-        table = args.table;
-        options = args.options;
-
-
-        var sql = queryColumns(owner, table);
-        var results = this.querySync(sql);
-        results.map(function (r) {
-            r.type = mysqlDataTypeToJSONType(r.dataType, r.dataLength);
-        });
-        return results;
-    };
-
     /*!
      * Build the sql statement for querying primary keys of a given table
      * @param owner
@@ -263,22 +225,6 @@ function mixinDiscovery(MySQL) {
         this.query(sql, cb);
     };
 
-    /**
-     * Discover primary keys synchronously for a given table
-     * @param {String} table
-     * @param {Object} options
-     * @returns {*} The list of primary key descriptions
-     */
-    MySQL.prototype.discoverPrimaryKeysSync = function (table, options) {
-        var args = getArgs(table, options);
-        var owner = args.owner;
-        table = args.table;
-        options = args.options;
-
-        var sql = queryForPrimaryKeys(owner, table);
-        return this.querySync(sql);
-    };
-
     /*!
      * Build the sql statement for querying foreign keys of a given table
      * @param owner
@@ -320,22 +266,6 @@ function mixinDiscovery(MySQL) {
         this.query(sql, cb);
     };
 
-    /**
-     * Discover foreign keys synchronously for a given table
-     * @param {String} table The table name
-     * @param {Object} options The options for discovery
-     * @return {Object[]} The results
-     */
-    MySQL.prototype.discoverForeignKeysSync = function (table, options) {
-        var args = getArgs(table, options);
-        var owner = args.owner;
-        table = args.table;
-        options = args.options;
-
-        var sql = queryForeignKeys(owner, table);
-        return this.querySync(sql);
-    };
-
     /*!
      * Retrieves a description of the foreign key columns that reference the given table's primary key columns (the foreign keys exported by a table).
      * They are ordered by fkTableOwner, fkTableName, and keySeq.
@@ -379,22 +309,6 @@ function mixinDiscovery(MySQL) {
         this.query(sql, cb);
     };
 
-    /**
-     * Discover foreign keys synchronously for a given table
-     * @param {String} owner The DB owner/schema name
-     * @param {Object} options The options for discovery
-     * @returns {*}
-     */
-    MySQL.prototype.discoverExportedForeignKeysSync = function (table, options) {
-        var args = getArgs(table, options);
-        var owner = args.owner;
-        table = args.table;
-        options = args.options;
-
-        var sql = queryExportedForeignKeys(owner, table);
-        return this.querySync(sql);
-    };
-
     function mysqlDataTypeToJSONType(mysqlType, dataLength) {
         var type = mysqlType.toUpperCase();
         switch (type) {