diff --git a/django/db/backends/postgresql_psycopg2/creation.py b/django/db/backends/postgresql_psycopg2/creation.py index ca389b9046..90304aa566 100644 --- a/django/db/backends/postgresql_psycopg2/creation.py +++ b/django/db/backends/postgresql_psycopg2/creation.py @@ -41,7 +41,8 @@ class DatabaseCreation(BaseDatabaseCreation): return '' def sql_indexes_for_field(self, model, f, style): - if f.db_index and not f.unique: + output = [] + if f.db_index: qn = self.connection.ops.quote_name db_table = model._meta.db_table tablespace = f.db_tablespace or model._meta.db_tablespace @@ -60,7 +61,8 @@ class DatabaseCreation(BaseDatabaseCreation): "(%s%s)" % (style.SQL_FIELD(qn(f.column)), opclass) + "%s;" % tablespace_sql) - output = [get_index_sql('%s_%s' % (db_table, f.column))] + if not f.unique: + output = [get_index_sql('%s_%s' % (db_table, f.column))] # Fields with database column types of `varchar` and `text` need # a second index that specifies their operator class, which is @@ -73,8 +75,6 @@ class DatabaseCreation(BaseDatabaseCreation): elif db_type.startswith('text'): output.append(get_index_sql('%s_%s_like' % (db_table, f.column), ' text_pattern_ops')) - else: - output = [] return output def set_autocommit(self): diff --git a/tests/regressiontests/indexes/models.py b/tests/regressiontests/indexes/models.py index 9758377f99..47ba5896a8 100644 --- a/tests/regressiontests/indexes/models.py +++ b/tests/regressiontests/indexes/models.py @@ -9,3 +9,9 @@ class Article(models.Model): index_together = [ ["headline", "pub_date"], ] + + +class IndexedArticle(models.Model): + headline = models.CharField(max_length=100, db_index=True) + body = models.TextField(db_index=True) + slug = models.CharField(max_length=40, unique=True, db_index=True) diff --git a/tests/regressiontests/indexes/tests.py b/tests/regressiontests/indexes/tests.py index 0dac881fa9..f3a32a44bb 100644 --- a/tests/regressiontests/indexes/tests.py +++ b/tests/regressiontests/indexes/tests.py @@ -1,8 +1,9 @@ from django.core.management.color import no_style from django.db import connections, DEFAULT_DB_ALIAS from django.test import TestCase +from django.utils.unittest import skipUnless -from .models import Article +from .models import Article, IndexedArticle class IndexesTests(TestCase): @@ -10,3 +11,16 @@ class IndexesTests(TestCase): connection = connections[DEFAULT_DB_ALIAS] index_sql = connection.creation.sql_indexes_for_model(Article, no_style()) self.assertEqual(len(index_sql), 1) + + @skipUnless(connections[DEFAULT_DB_ALIAS].vendor == 'postgresql', + "This is a postgresql-specific issue") + def test_postgresql_text_indexes(self): + """Test creation of PostgreSQL-specific text indexes (#12234)""" + connection = connections[DEFAULT_DB_ALIAS] + index_sql = connection.creation.sql_indexes_for_model(IndexedArticle, no_style()) + self.assertEqual(len(index_sql), 5) + self.assertIn('("headline" varchar_pattern_ops)', index_sql[1]) + self.assertIn('("body" text_pattern_ops)', index_sql[3]) + # unique=True and db_index=True should only create the varchar-specific + # index (#19441). + self.assertIn('("slug" varchar_pattern_ops)', index_sql[4])