diff --git a/lib/cartodb/cache/cache_api.js b/lib/cartodb/cache/cache_api.js
deleted file mode 100644
index 915cc929..00000000
--- a/lib/cartodb/cache/cache_api.js
+++ /dev/null
@@ -1,159 +0,0 @@
-var _       = require('underscore'),
-    request = require('request');
-
-function QueryTablesApi() {
-}
-
-var affectedTableRegexCache = {
-    bbox: /!bbox!/g,
-    pixel_width: /!pixel_width!/g,
-    pixel_height: /!pixel_height!/g
-};
-
-module.exports = QueryTablesApi;
-
-QueryTablesApi.prototype.getLastUpdatedTime = function (username, api_key, tableNames, callback) {
-    var sql = 'SELECT EXTRACT(EPOCH FROM max(updated_at)) as max FROM CDB_TableMetadata m WHERE m.tabname = any (ARRAY['+
-        tableNames.map(function(t) { return "'" + t + "'::regclass"; }).join(',') +
-        '])';
-
-    // call sql api
-    sqlQuery(username, api_key, sql, function(err, rows){
-        if (err){
-            var msg = err.message ? err.message : err;
-            callback(new Error('could not find last updated timestamp: ' + msg));
-            return;
-        }
-        // when the table has not updated_at means it hasn't been changed so a default last_updated is set
-        var last_updated = 0;
-        if(rows.length !== 0) {
-            last_updated = rows[0].max || 0;
-        }
-
-        callback(null, last_updated*1000);
-    });
-};
-
-QueryTablesApi.prototype.getAffectedTablesInQuery = function (username, api_key, sql, callback) {
-    // Replace mapnik tokens
-    sql = sql
-        .replace(affectedTableRegexCache.bbox, 'ST_MakeEnvelope(0,0,0,0)')
-        .replace(affectedTableRegexCache.pixel_width, '1')
-        .replace(affectedTableRegexCache.pixel_height, '1')
-    ;
-
-    // Pass to CDB_QueryTables
-    sql = 'SELECT CDB_QueryTables($windshaft$' + sql + '$windshaft$)';
-
-    // call sql api
-    sqlQuery(username, api_key, sql, function(err, rows){
-        if (err){
-            var msg = err.message ? err.message : err;
-            callback(new Error('could not fetch source tables: ' + msg));
-            return;
-        }
-        var qtables = rows[0].cdb_querytables;
-        var tableNames = qtables.split(/^\{(.*)\}$/)[1];
-        tableNames = tableNames ? tableNames.split(',') : [];
-        callback(null, tableNames);
-    });
-};
-
-QueryTablesApi.prototype.getAffectedTablesAndLastUpdatedTime = function (username, api_key, sql, callback) {
-    sql = sql
-        .replace(affectedTableRegexCache.bbox, 'ST_MakeEnvelope(0,0,0,0)')
-        .replace(affectedTableRegexCache.pixel_width, '1')
-        .replace(affectedTableRegexCache.pixel_height, '1')
-    ;
-
-    var query = [
-        'SELECT',
-        'CDB_QueryTables($windshaft$' + sql + '$windshaft$) as tablenames,',
-        'EXTRACT(EPOCH FROM max(updated_at)) as max',
-            'FROM CDB_TableMetadata m',
-            'WHERE m.tabname = any (CDB_QueryTables($windshaft$' + sql + '$windshaft$)::regclass[])'
-    ].join(' ');
-
-    sqlQuery(username, api_key, query, function(err, rows){
-        if (err || rows.length === 0) {
-            var msg = err.message ? err.message : err;
-            callback(new Error('could not fetch affected tables and last updated time: ' + msg));
-            return;
-        }
-
-        var qtables = rows[0].tablenames;
-        var tableNames = qtables.split(/^\{(.*)\}$/)[1];
-        tableNames = tableNames ? tableNames.split(',') : [];
-
-        var lastUpdatedTime = rows[0].max || 0;
-
-        callback(null, {
-            affectedTables: tableNames,
-            lastUpdatedTime: lastUpdatedTime * 1000
-        });
-    });
-};
-
-function sqlQuery(username, api_key, sql, callback) {
-    var api = global.environment.sqlapi;
-
-    // build up api string
-    var sqlapihostname = username;
-    if ( api.domain ) sqlapihostname += '.' + api.domain;
-
-    var sqlapi = api.protocol + '://';
-    if ( api.host && api.host != api.domain ) sqlapi += api.host;
-    else sqlapi += sqlapihostname;
-    sqlapi += ':' + api.port + '/api/' + api.version + '/sql';
-
-    var qs  = { q: sql };
-
-    // add api_key if given
-    if (_.isString(api_key) && api_key != '') { qs.api_key = api_key; }
-
-    // call sql api
-    //
-    // NOTE: using POST to avoid size limits:
-    // See http://github.com/CartoDB/Windshaft-cartodb/issues/111
-    //
-    // NOTE: uses "host" header to allow IP based specification
-    //       of sqlapi address (and avoid a DNS lookup)
-    //
-    // NOTE: allows for keeping up to "maxConnections" concurrent
-    //       sockets opened per SQL-API host.
-    // See http://nodejs.org/api/http.html#http_agent_maxsockets
-    //
-    var maxSockets = global.environment.maxConnections || 128;
-    var maxGetLen = api.max_get_sql_length || 2048;
-    var maxSQLTime = api.timeout || 100; // 1/10 of a second by default
-    var reqSpec = {
-        url:sqlapi,
-        json:true,
-        headers:{host: sqlapihostname}
-        // http://nodejs.org/api/http.html#http_agent_maxsockets
-        ,pool:{maxSockets:maxSockets}
-        // timeout in milliseconds
-        ,timeout:maxSQLTime
-    };
-    if ( sql.length > maxGetLen ) {
-        reqSpec.method = 'POST';
-        reqSpec.body = qs;
-    } else {
-        reqSpec.method = 'GET';
-        reqSpec.qs = qs;
-    }
-    request(reqSpec, function(err, res, body) {
-        if (err){
-            console.log('ERROR connecting to SQL API on ' + sqlapi + ': ' + err);
-            callback(err);
-            return;
-        }
-        if (res.statusCode != 200) {
-            var msg = res.body.error ? res.body.error : res.body;
-            callback(new Error(msg));
-            console.log('unexpected response status (' + res.statusCode + ') for sql query: ' + sql + ': ' + msg);
-            return;
-        }
-        callback(null, body.rows);
-    });
-}
\ No newline at end of file