Remove length declaration for int and bigint in postgres. Closes #1575

lib/dialects/postgres/query-generator.js

@@ -772,6 +772,10 @@ module.exports = (function() {
         dataType = dataType.replace(/NOT NULL/, '')
         dataType = dataType.replace(/NOT NULL/, '')
       }
       }
 
 
+      if (Utils._.includes(dataType, 'INTEGER') || Utils._.includes(dataType, 'BIGINT')) {
+        dataType = dataType.replace(/(INTEGER|BIGINT)\s*\(\d+\)/, '$1') // Postgres does not allow length on INTEGER and BIGINT
+      }
+
       if (dataType.lastIndexOf('BLOB') !== -1 || dataType.lastIndexOf('BINARY') !== -1) {
       if (dataType.lastIndexOf('BLOB') !== -1 || dataType.lastIndexOf('BINARY') !== -1) {
         dataType = 'bytea'
         dataType = 'bytea'
       }
       }

test/postgres/query-generator.test.js

@@ -115,6 +115,10 @@ if (dialect.match(/^postgres/)) {
 
 
       createTableQuery: [
       createTableQuery: [
         {
         {
+          arguments: ['myTable', {int: 'INTEGER(1)', bigint: 'BIGINT(12)'}],
+          expectation: "CREATE TABLE IF NOT EXISTS \"myTable\" (\"int\" INTEGER, \"bigint\" BIGINT);",
+        },
+        {
           arguments: ['myTable', {title: 'VARCHAR(255)', name: 'VARCHAR(255)'}],
           arguments: ['myTable', {title: 'VARCHAR(255)', name: 'VARCHAR(255)'}],
           expectation: "CREATE TABLE IF NOT EXISTS \"myTable\" (\"title\" VARCHAR(255), \"name\" VARCHAR(255));",
           expectation: "CREATE TABLE IF NOT EXISTS \"myTable\" (\"title\" VARCHAR(255), \"name\" VARCHAR(255));",
         },
         },