fix: pass columnType to readDateTimeString

lib/parsers/binary_parser.js

@@ -111,7 +111,11 @@
             field.columnType
           )
         ) {
-          return packet.readDateTimeString(parseInt(field.decimals, 10));
+          return packet.readDateTimeString(
+            parseInt(field.decimals, 10),
+            ' ',
+            field.columnType
+          );
         }
 
         if (field.columnType === Types.TINY) {

lib/parsers/static_binary_parser.js

@@ -146,7 +146,9 @@ function getBinaryParser(fields, _options, config) {
                         ].includes(field.columnType)
                       ) {
                         return packet.readDateTimeString(
-                          parseInt(field.decimals, 10)
+                          parseInt(field.decimals, 10),
+                          ' ',
+                          field.columnType
                         );
                       }
 

test/esm/integration/parsers/typecast-field-datetime.test.mjs

@@ -0,0 +1,37 @@
+import { describe, assert } from 'poku';
+import { createRequire } from 'node:module';
+
+const require = createRequire(import.meta.url);
+const {
+  createConnection,
+  describeOptions,
+} = require('../../../common.test.cjs');
+
+const conn = createConnection({
+  typeCast: (field) => field.string(),
+}).promise();
+
+describe('typeCast field.datetime', describeOptions);
+
+const query = {};
+const execute = {};
+
+await conn.query('CREATE TEMPORARY TABLE `tmp_date` (`datetime` DATETIME)');
+
+await conn.query('INSERT INTO `tmp_date` (`datetime`) VALUES (CURRENT_DATE())');
+
+{
+  const [date] = await conn.execute('SELECT datetime from tmp_date');
+
+  execute.date = date[0].datetime;
+}
+
+{
+  const [date] = await conn.query('SELECT datetime from tmp_date');
+
+  query.date = date[0].datetime;
+}
+
+await conn.end();
+
+assert.equal(execute.date, query.date, 'DATETIME');