Support for to_timestamp function

lib/index.js

@@ -3,6 +3,8 @@
 // reserved Postgres words
 var reservedMap = require(__dirname + '/reserved.js');
 
+var reservedFunctions =  require(__dirname + '/pgfunctions.js');
+
 var fmtPattern = {
     ident: 'I',
     literal: 'L',
@@ -119,6 +121,14 @@ function quoteLiteral(value) {
         literal = value.toString().slice(0); // create copy
     }
 
+    for (const name of reservedFunctions) {
+        if (literal.indexOf(name + '(') === 0) {
+            return literal;
+        }
+    }
+
+
+
     var hasBackslash = false;
     var quoted = '\'';
 
@@ -247,4 +257,4 @@ exports.config = config;
 exports.ident = quoteIdent;
 exports.literal = quoteLiteral;
 exports.string = quoteString;
-exports.withArray = formatWithArray;
+exports.withArray = formatWithArray;

lib/pgfunctions.js

@@ -0,0 +1,7 @@
+//
+// PostgreSQL funtions
+//
+module.exports = [
+    'TO_TIMESTAMP',
+    'to_timestamp'
+]

lib/reserved.js

@@ -133,6 +133,7 @@ module.exports = {
     "TEXT32K": true,
     "THEN": true,
     "TO": true,
+    "TO_TIMESTAMP": true,
     "TOP": true,
     "TRAILING": true,
     "TRUE": true,
@@ -147,4 +148,4 @@ module.exports = {
     "WHERE": true,
     "WITH": true,
     "WITHOUT": true,
-};
+};

test/index.js

@@ -12,6 +12,7 @@ var testObject = { a: 1, b: 2 };
 var testNestedArray = [ [1, 2], [3, 4], [5, 6] ];
 
 describe('format(fmt, ...)', function() {
+
     describe('%s', function() {
         it('should format as a simple string', function() {
             format('some %s here', 'thing').should.equal('some thing here');
@@ -276,4 +277,13 @@ describe('format.literal(val)', function() {
     it('should format backslashes', function() {
         format.literal('\\whoop\\').should.equal("E'\\\\whoop\\\\'");
     });
-});
+});
+
+describe('format sql proper check', function() {
+    it ('should be correct sql for arrays', function () {
+        format('INSERT INTO tablename VALUES %L', [ ['some', 'some2'], ['any', 'any2']]).should.equal(`INSERT INTO tablename VALUES ('some', 'some2'), ('any', 'any2')`);
+    })
+    it ('should be correct sql for to_timestamp function in field', function () {
+        format('INSERT INTO tablename VALUES %L', [ ['some', 'to_timestamp(1223454)'], ['any', 'to_timestamp(1223454)']]).should.equal(`INSERT INTO tablename VALUES ('some', to_timestamp(1223454)), ('any', to_timestamp(1223454))`);
+    })
+})