Thursday, July 26, 2018

Re: Django2.0.7 generate SQL query function is wrong(REGEXP_LIKE).

This is a regression that will be fixed in Django 2.0.8: https://code.djangoproject.com/ticket/29544

On Thursday, July 26, 2018 at 6:40:37 AM UTC-4, Jason wrote:
what's the django orm code that generates that query?

On Thursday, July 26, 2018 at 12:12:06 AM UTC-4, Hiroyuki Yamashita wrote:
My name is Hiroyuki Yamashia.

Create SQL query function is wrong by Django2.0.7.

I using MariaDB and using "__regex".

Django2.0.7 is generate this SQL query.

SELECT `scanner_tmpresponse_07`.`id` FROM `scanner_tmpresponse_07`
WHERE (`scanner_tmpresponse_07`.`audit_history_id` = 225 AND
`scanner_tmpresponse_07`.`deleted` = False AND
`scanner_tmpresponse_07`.`disabled` = False AND
REGEXP_LIKE(`scanner_tmpresponse_07`.`response_body`,
.*192\.168\.\d+\.\d+.*, 'c')) ORDER BY `scanner_tmpresponse_07`.`id`
ASC

I think "REGEXP_LIKE" is Oracle function for Regular expression.

Django2.0.6 is generate this SQL query.
This version is no problem.

SELECT `scanner_tmpresponse_07`.`id` FROM `scanner_tmpresponse_07`
WHERE (`scanner_tmpresponse_07`.`audit_history_id` = 224 AND
`scanner_tmpresponse_07`.`deleted` = False AND
`scanner_tmpresponse_07`.`disabled` = False AND
`scanner_tmpresponse_07`.`response_body` REGEXP BINARY
.*192\.168\.\d+\.\d+.*) ORDER BY `scanner_tmpresponse_07`.`id` ASC


#-------------------------
settings.py

    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.mysql',
            'NAME' : 'XXXXXXX',
            'HOST' : 'localhost',
            'USER' : 'XXXXXXXX',
            'PASSWORD' : 'XXXXXXXXX',
            'PORT' : '3306',
    #        'ATOMIC_REQUESTS':True,

        },
    'scanner': {
            'ENGINE': 'django.db.backends.mysql',
            'NAME' : 'XXXXXXX',
            'HOST' : 'localhost',
            'USER' : 'XXXXXXXX',
            'PASSWORD' : 'XXXXXXXXX',
            'PORT' : '3306',
    #        'ATOMIC_REQUESTS':True,

        },
    'portal': {
            'ENGINE': 'django.db.backends.mysql',
            'NAME' : 'XXXXXXX',
            'HOST' : 'localhost',
            'USER' : 'XXXXXXXX',
            'PASSWORD' : 'XXXXXXXXX',
            'PORT' : '3306',
    #        'ATOMIC_REQUESTS':True,
        }
    }

#-------------------------

Traceback (most recent call last):

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/django/db/backends/utils.py",
line 85, in _execute
    return self.cursor.execute(sql, params)

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/django/db/backends/mysql/base.py",
line 71, in execute
    return self.cursor.execute(query, args)

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/MySQLdb/cursors.py",
line 250, in execute
    self.errorhandler(self, exc, value)

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/MySQLdb/connections.py",
line 50, in defaulterrorhandler
    raise errorvalue

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/MySQLdb/cursors.py",
line 247, in execute
    res = self._query(query)

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/MySQLdb/cursors.py",
line 412, in _query
    rowcount = self._do_query(q)

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/MySQLdb/cursors.py",
line 375, in _do_query
    db.query(q)

  File "/opt/virtual_setting/release/lib/python3.6/site-packages/MySQLdb/connections.py",
line 276, in query
    _mysql.connection.query(self, query)

_mysql_exceptions.OperationalError: (1305, 'FUNCTION
scanner.REGEXP_LIKE does not exist')


The above exception was the direct cause of the following exception:


--
==============================
Hiroyuki Yamashita 山下 裕之
==============================

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