Re: Error on execute migration (create index) when set db_name with quoted string

Sure, 

its great to help the project. 

thanks for your attention. 

tonight (brazil) I will prepare the ticket. 

cheers

---------------------------------------------------------------------
Cadu Leite

| Twitter     | Medium Blog | Google +     |  

| @cadu_leite | @cadu_leite | +CarlosLeite |

http://people.python.org.br/

On Tue, Nov 28, 2017 at 6:30 PM, Simon Charette <charette.s@gmail.com> wrote:

Hello Carlos,

Thank you for taking the time to reproduce the issue against the upcoming
1.11 release.

It looks like `Index` class doesn't use the same name generation logic as
the schema editor for some reason[0] so it will be have to be adjusted in
a similar way.

Could you file a new ticket[1] referencing this thread and detailing the issue
you are encoutering? It should be eligible for a backport since this is a bug
in a newly introduced feature.

 

Until a 1.11.x version fixing the issue is released you can work around the
issue by defining an Index(name)[2] manually.

Cheers,
Simon

[0] https://github.com/django/django/blob/899999db4293d40613626833860de28e8ccdd413/django/db/models/indexes.py#L96-L122
[1] https://code.djangoproject.com/newticket
[2] https://docs.djangoproject.com/en/1.11/ref/models/indexes/#name

Le mardi 28 novembre 2017 09:01:06 UTC-5, Carlos Leite a écrit :

Testing the pacth for ticket/28792 at [1]
with Python 2.7, Django 1.11
to test badly formed  double quoted db_table name

    db_table = '"tbl_litle_name"',

[1] https://code.djangoproject.com/ticket/28792



Django Branch 1.11
------------------

I've aplied this commit

$pip install -e git+https://github.com/django/django.git@a35ab95ed#egg=django



Migration Initial
-----------------

# -*- coding: utf-8 -*-
# Generated by Django 1.11.8.dev20171115030630 on 2017-11-28 13:44
from __future__ import unicode_literals

from django.db import migrations, models
import django.db.models.deletion


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

    operations = [
        migrations.CreateModel(
            name='Author',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('name', models.CharField(max_length=50, verbose_name='author name')),
            ],
            options={
                'ordering': ['name'],
                'get_latest_by': 'name',
                'verbose_name': 'Author',
                'verbose_name_plural': 'Authors',
            },
        ),
        migrations.CreateModel(
            name='Book',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('name', models.CharField(help_text="book's name", max_length=50, verbose_name='book name')),
                ('isbn_10', models.CharField(blank=True, db_column='old_isbn_number', db_index=True, help_text='international standart book number (old length 10)', max_length=10, null=True)),
                ('isbn_13', models.CharField(blank=True, db_index=True, help_text='international standart book number (after 2007 jan 01)', max_length=13, unique=True)),
                ('language', models.CharField(blank=True, choices=[('PORTUGUESE_BRAZIL', 'Portugu\xeas Brasil'), ('PORTUGUES', 'Portugu\xeas'), ('ENGLISH', 'English'), ('FRANCE', 'France'), ('ESPANISH', 'Espa\xf1ol')], help_text='edition length', max_length=5, null=True)),
            ],
            options={
                'ordering': ['name'],
                'get_latest_by': 'name',
                'verbose_name': 'book',
                'verbose_name_plural': 'books',
            },
        ),
        migrations.CreateModel(
            name='Publisher',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('name', models.CharField(max_length=50, verbose_name='publisher name')),
            ],
            options={
                'get_latest_by': 'name',
                'ordering': ['name'],
                'verbose_name_plural': 'Publishers',
                'db_table': '"tbl_litle_name"',
                'verbose_name': 'Publiser',
            },
        ),
        migrations.AddIndex(
            model_name='publisher',
            index=models.Index(fields=['name'], name='"tbl_litle__name_408be5_idx'),
        ),
        migrations.AddField(
            model_name='book',
            name='author',
            field=models.ManyToManyField(blank=True, help_text="author's name", null=True, to='testapp.Author'),
        ),
        migrations.AddField(
            model_name='book',
            name='publisher',
            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='testapp.Publisher'),
        ),
        migrations.AddIndex(
            model_name='author',
            index=models.Index(fields=['name'], name='testapp_aut_name_02c4bc_idx'),
        ),
    ]



The model changed
-----------------

class Publisher(models.Model):
    """
    Book's Author - author is a Book's model supplement.
    """
    name = models.CharField(verbose_name='publisher name', max_length=50, null=False)

    class Meta:
        db_table = '"tbl_litle_name"'
        get_latest_by = "name"
        ordering = ['name', ]
        verbose_name = 'Publiser'
        verbose_name_plural = 'Publishers'
        indexes = [
            models.Index(fields=['name', ]),
        ]

    def __unicode__(self):
        return self.name


Generated Migration
-------------------

# -*- coding: utf-8 -*-
# Generated by Django 1.11.8.dev20171115030630 on 2017-11-28 13:36
from __future__ import unicode_literals

from django.db import migrations, models
import django.db.models.deletion


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

     #  ...  deleted for sanity

        migrations.CreateModel(
            name='Publisher',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('name', models.CharField(max_length=50, verbose_name='publisher name')),
            ],
            options={
                'get_latest_by': 'name',
                'ordering': ['name'],
                'verbose_name_plural': 'Publishers',
                'db_table': '"big_name-with-hyphen-left_in_lowercase"',
                'verbose_name': 'Publiser',
            },
        ),
        migrations.AddIndex(
            model_name='publisher',
            index=models.Index(fields=['name'], name='"big_name-w_name_cd0539_idx'), # <=====  error `"`
        ),

       #  code deleted for sanity
    ]


MakeMigration ERROR  & traceback
--------------------------------

(dj28792) 20171128.Tue11:40:32cadu>/Volumes/p10G/prj/dj_datadictionary_testproject/testproject>
cadu.[563]$python manage.py migrate
System check identified some issues:

WARNINGS:
testapp.Book.author: (fields.W340) null has no effect on ManyToManyField.
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions
Running migrations:
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying auth.0007_alter_validators_add_error_messages... OK
  Applying auth.0008_alter_user_username_max_length... OK
  Applying sessions.0001_initial... OK
(dj28792) 20171128.Tue11:44:50cadu>/Volumes/p10G/prj/dj_datadictionary_testproject/testproject>
cadu.[564]$python manage.py makemigrations
System check identified some issues:

WARNINGS:
testapp.Book.author: (fields.W340) null has no effect on ManyToManyField.
Migrations for 'testapp':
  testproject/testapp/migrations/0001_initial.py
    - Create model Author
    - Create model Book
    - Create model Publisher
    - Create index "tbl_litle__name_408be5_idx on field(s) name of model publisher   <==========
    - Add field author to book
    - Add field publisher to book
    - Create index testapp_aut_name_02c4bc_idx on field(s) name of model author
(dj28792) 20171128.Tue11:44:55cadu>/Volumes/p10G/prj/dj_datadictionary_testproject/testproject>
cadu.[565]$python manage.py migrate
System check identified some issues:

WARNINGS:
testapp.Book.author: (fields.W340) null has no effect on ManyToManyField.
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions, testapp
Running migrations:
  Applying testapp.0001_initial...Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/__init__.py", line 356, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/executor.py", line 115, in migrate
    state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/migration.py", line 129, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/operations/models.py", line 788, in database_forwards
    schema_editor.add_index(model, self.index)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/base/schema.py", line 331, in add_index
    self.execute(index.create_sql(model, self))
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/base/schema.py", line 120, in execute
    cursor.execute(sql, params)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: zero-length delimited identifier at or near """"
LINE 1: CREATE INDEX ""tbl_litle__name_408be5_idx" ON "tbl_litle_nam...  <=======================
                     ^

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
even editing the migration manually  
 ...  the problem appears again on created CONTRAINT for a PK
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

(dj28792) 20171128.Tue11:45:02cadu>/Volumes/p10G/prj/dj_datadictionary_testproject/testproject>
cadu.[566]$python manage.py migrate
System check identified some issues:

WARNINGS:
testapp.Book.author: (fields.W340) null has no effect on ManyToManyField.
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, sessions, testapp
Running migrations:
  Applying testapp.0001_initial...Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/__init__.py", line 364, in execute_from_command_line
    utility.execute()
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/__init__.py", line 356, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/Users/cadu/Envs/dj28792/src/django/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/executor.py", line 115, in migrate
    state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/base/schema.py", line 93, in __exit__
    self.execute(sql)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/base/schema.py", line 120, in execute
    cursor.execute(sql, params)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/Users/cadu/Envs/dj28792/src/django/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: syntax error at or near "tbl_litle_name"
LINE 1: ...ONSTRAINT "testapp_book_publisher_id_fb33c7ca_fk_"tbl_litle_...
                                                             ^
                     ^

---------------------------------------------------------------------
Cadu Leite
| Twitter     | Medium Blog | Google +     |  
| @cadu_leite | @cadu_leite | +CarlosLeite |

http://people.python.org.br/

On Tue, Nov 28, 2017 at 11:52 AM, Carlos Leite <cad...@gmail.com> wrote:
>
> Can I use double quoted names with others SGDBs , PostgreSQL ?
> or it is specific for Oracle ...
>
> by the way the patch didint work. Its another problem Is not a metter of "." namespaced name.
>  Its about if I can or not use '"tb_custom_name"'  double quoted string  = ' " " '
>
> if I can use that (' " " ') for any database engine, I believe its a bug ...  
> and even changed the migration manually, the same error occur when create an INDEX (at my example) ...
>
> so, the error is at the method that generates the db_name string passed for the ORM to create tables and constraints.
>
>
>
>
> ---------------------------------------------------------------------
> Cadu Leite
> | Twitter     | Medium Blog | Google +     |  
> | @cadu_leite | @cadu_leite | +CarlosLeite |
>
> http://people.python.org.br/
>
> On Tue, Nov 28, 2017 at 9:25 AM, Carlos Leite <cad...@gmail.com> wrote:
>>
>> Thanks Simon,
>>
>> I tryied to find some issue related but found nothing.
>>
>> The ticket #28792 seems exactly the case ...  
>>
>> I'll take a couple of hours (at work), but I'll try that patch
>> and regenarate the migrations.
>>
>> thanks again.
>>
>> ---------------------------------------------------------------------
>> Cadu Leite
>> | Twitter     | Medium Blog | Google +     |  
>> | @cadu_leite | @cadu_leite | +CarlosLeite |
>>
>> http://people.python.org.br/
>>

>> On Tue, Nov 28, 2017 at 4:14 AM, Simon Charette <chare...@gmail.com> wrote:
>>>
>>> Hey Carlos,
>>>
>>> I believe the trailing quote truncation issue might be solved in the yet to be released
>>> 1.11.8[0][1] version.
>>>
>>> Could you confirm whether or not it's the case? You'll have to regenerate your migration.
>>>
>>> Best,
>>> Simon
>>>
>>> [0] https://github.com/django/django/commit/a35ab95ed4eec5c62fa19bdc69ecfe0eff3e1fca
>>> [1] https://code.djangoproject.com/ticket/28792
>>>
>>>
>>> Le lundi 27 novembre 2017 23:24:59 UTC-5, Carlos Leite a écrit :
>>>>
>>>> ooops
>>>>
>>>>
>>>> in the migration 0007 the index name seems badly formed
>>>>
>>>> ```python
>>>>    ...
>>>>     migrations.AddIndex(
>>>>     model_name='publisher',
>>>>     index=models.Index(fields=['name'], name='"big_name-w_name_cd0539_idx'),   # <<<<<<<  there is a " in plus. and its never closed.
>>>> ),
>>>> ```
>>>>
>>>> On Tuesday, November 28, 2017 at 2:01:56 AM UTC-2, Carlos Leite wrote:
>>>>>
>>>>> I was making some introspections on meta attributes from a Model class
>>>>> jsut to check what changes when we set some attributes on Meta class and etc...
>>>>>
>>>>>
>>>>> TO check the Meta.db_name
>>>>> I read the docs and saw that I could use quoted strings as told ..
>>>>>
>>>>>
>>>>> "
>>>>> ... o prevent such transformations, use a quoted name as the value for db_table:
>>>>>
>>>>> > db_table = '"name_left_in_lowercase"'
>>>>>
>>>>>  Such quoted names can also be used with Django's other supported database backends; except for Oracle, however, the quotes have no effect. See the Oracle notes for more details.
>>>>> "
>>>>> at https://docs.djangoproject.com/en/1.8/ref/models/options/#db-table
>>>>>
>>>>>
>>>>> Well, when I tried to *migrate* I got the error, during the index creation, described below.
>>>>> Is it a bug ? or I miss soething ?
>>>>> I just tried to set a custom name for a table, with quotes and hyphens 8P
>>>>>
>>>>>
>>>>> '"big_name-with-hyphen-left_in_lowercase"'
>>>>>
>>>>> the error hapends when PostgreSQL tries to create an index and Django named with part of the tables name.
>>>>>
>>>>>
>>>>> ### The Model Class
>>>>>
>>>>>
>>>>> class Publisher(models.Model):
>>>>> """
>>>>> Book's Author - author is a Book's model supplement.
>>>>> """
>>>>> name = models.CharField(verbose_name='publisher name', max_length=50, null=False)
>>>>>
>>>>>
>>>>> class Meta:
>>>>> db_table = '"big_name-with-hyphen-left_in_lowercase"'
>>>>> get_latest_by = "name"
>>>>> ordering = ['name', ]
>>>>> verbose_name = 'Publiser'
>>>>> verbose_name_plural = 'Publishers'
>>>>> indexes = [
>>>>> models.Index(fields=['name', ]),
>>>>> ]
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ### The Migration 0007
>>>>>
>>>>>
>>>>> # -*- coding: utf-8 -*-
>>>>> # Generated by Django 1.11 on 2017-11-28 03:15
>>>>> from __future__ import unicode_literals
>>>>>
>>>>>
>>>>> from django.db import migrations, models
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> class Migration(migrations.Migration):
>>>>>
>>>>>
>>>>> dependencies = [
>>>>> ('testapp', '0006_auto_20171127_1927'),
>>>>> ]
>>>>>
>>>>>
>>>>> operations = [
>>>>> migrations.RemoveIndex(
>>>>> model_name='publisher',
>>>>> name='testapp_pub_name_88e073_idx',
>>>>> ),
>>>>> migrations.AddIndex(
>>>>> model_name='publisher',
>>>>> index=models.Index(fields=['name'], name='"big_name-w_name_cd0539_idx'),
>>>>> ),
>>>>> migrations.AlterModelTable(
>>>>> name='publisher',
>>>>> table='"big_name-with-hyphen-left_in_lowercase"',
>>>>> ),
>>>>> ]
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ### traceback
>>>>>
>>>>>
>>>>> $python manage.py makemigrations
>>>>> System check identified some issues:
>>>>>
>>>>>
>>>>> Migrations for 'testapp':
>>>>> testproject/testapp/migrations/0007_auto_20171128_0315.py
>>>>> - Remove index testapp_pub_name_88e073_idx from publisher
>>>>> - Create index "big_name-w_name_cd0539_idx on field(s) name of model publisher
>>>>> - Rename table for publisher to "big_name-with-hyphen-left_in_lowercase"
>>>>> (dj_datadictionary) 20171125.Sat01:15:52cadu>/Volumes/p10G/prj/dj_datadictionary_testproject/testproject>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> $python manage.py migrate
>>>>> System check identified some issues:
>>>>>
>>>>>
>>>>> Operations to perform:
>>>>> Apply all migrations: admin, auth, contenttypes, sessions, testapp
>>>>> Running migrations:
>>>>> Applying testapp.0007_auto_20171128_0315...Traceback (most recent call last):
>>>>> File "manage.py", line 22, in <module>
>>>>> execute_from_command_line(sys.argv)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
>>>>> utility.execute()
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/core/management/__init__.py", line 355, in execute
>>>>> self.fetch_command(subcommand).run_from_argv(self.argv)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/core/management/base.py", line 283, in run_from_argv
>>>>> self.execute(*args, **cmd_options)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/core/management/base.py", line 330, in execute
>>>>> output = self.handle(*args, **options)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 204, in handle
>>>>> fake_initial=fake_initial,
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/migrations/executor.py", line 115, in migrate
>>>>> state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
>>>>> state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
>>>>> state = migration.apply(state, schema_editor)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/migrations/migration.py", line 129, in apply
>>>>> operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/migrations/operations/models.py", line 785, in database_forwards
>>>>> schema_editor.add_index(model, self.index)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 330, in add_index
>>>>> self.execute(index.create_sql(model, self))
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 119, in execute
>>>>> cursor.execute(sql, params)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/backends/utils.py", line 80, in execute
>>>>> return super(CursorDebugWrapper, self).execute(sql, params)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/backends/utils.py", line 65, in execute
>>>>> return self.cursor.execute(sql, params)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/utils.py", line 94, in __exit__
>>>>> six.reraise(dj_exc_type, dj_exc_value, traceback)
>>>>> File "/Users/cadu/Envs/dj_datadictionary/lib/python2.7/site-packages/django/db/backends/utils.py", line 65, in execute
>>>>> return self.cursor.execute(sql, params)
>>>>> django.db.utils.ProgrammingError: zero-length delimited identifier at or near """"
>>>>> LINE 1: CREATE INDEX ""big_name-w_name_cd0539_idx" ON "testapp_publi...
>>>>> ^
>>>
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