600 lines
28 KiB
Python
600 lines
28 KiB
Python
from unittest import mock
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from django.contrib.postgres.indexes import (
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BloomIndex, BrinIndex, BTreeIndex, GinIndex, GistIndex, HashIndex, OpClass,
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SpGistIndex,
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)
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from django.db import NotSupportedError, connection
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from django.db.models import CharField, F, Index, Q
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from django.db.models.functions import Cast, Collate, Length, Lower
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from django.test import skipUnlessDBFeature
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from django.test.utils import modify_settings, register_lookup
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from . import PostgreSQLSimpleTestCase, PostgreSQLTestCase
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from .fields import SearchVector, SearchVectorField
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from .models import CharFieldModel, IntegerArrayModel, Scene, TextFieldModel
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class IndexTestMixin:
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def test_name_auto_generation(self):
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index = self.index_class(fields=['field'])
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index.set_name_with_model(CharFieldModel)
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self.assertRegex(index.name, r'postgres_te_field_[0-9a-f]{6}_%s' % self.index_class.suffix)
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def test_deconstruction_no_customization(self):
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index = self.index_class(fields=['title'], name='test_title_%s' % self.index_class.suffix)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.%s' % self.index_class.__name__)
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {'fields': ['title'], 'name': 'test_title_%s' % self.index_class.suffix})
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def test_deconstruction_with_expressions_no_customization(self):
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name = f'test_title_{self.index_class.suffix}'
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index = self.index_class(Lower('title'), name=name)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(
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path,
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f'django.contrib.postgres.indexes.{self.index_class.__name__}',
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)
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self.assertEqual(args, (Lower('title'),))
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self.assertEqual(kwargs, {'name': name})
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class BloomIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = BloomIndex
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def test_suffix(self):
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self.assertEqual(BloomIndex.suffix, 'bloom')
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def test_deconstruction(self):
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index = BloomIndex(fields=['title'], name='test_bloom', length=80, columns=[4])
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.BloomIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {
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'fields': ['title'],
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'name': 'test_bloom',
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'length': 80,
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'columns': [4],
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})
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def test_invalid_fields(self):
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msg = 'Bloom indexes support a maximum of 32 fields.'
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with self.assertRaisesMessage(ValueError, msg):
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BloomIndex(fields=['title'] * 33, name='test_bloom')
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def test_invalid_columns(self):
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msg = 'BloomIndex.columns must be a list or tuple.'
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with self.assertRaisesMessage(ValueError, msg):
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BloomIndex(fields=['title'], name='test_bloom', columns='x')
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msg = 'BloomIndex.columns cannot have more values than fields.'
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with self.assertRaisesMessage(ValueError, msg):
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BloomIndex(fields=['title'], name='test_bloom', columns=[4, 3])
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def test_invalid_columns_value(self):
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msg = 'BloomIndex.columns must contain integers from 1 to 4095.'
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for length in (0, 4096):
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with self.subTest(length), self.assertRaisesMessage(ValueError, msg):
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BloomIndex(fields=['title'], name='test_bloom', columns=[length])
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def test_invalid_length(self):
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msg = 'BloomIndex.length must be None or an integer from 1 to 4096.'
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for length in (0, 4097):
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with self.subTest(length), self.assertRaisesMessage(ValueError, msg):
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BloomIndex(fields=['title'], name='test_bloom', length=length)
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class BrinIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = BrinIndex
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def test_suffix(self):
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self.assertEqual(BrinIndex.suffix, 'brin')
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def test_deconstruction(self):
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index = BrinIndex(fields=['title'], name='test_title_brin', autosummarize=True, pages_per_range=16)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.BrinIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {
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'fields': ['title'],
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'name': 'test_title_brin',
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'autosummarize': True,
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'pages_per_range': 16,
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})
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def test_invalid_pages_per_range(self):
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with self.assertRaisesMessage(ValueError, 'pages_per_range must be None or a positive integer'):
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BrinIndex(fields=['title'], name='test_title_brin', pages_per_range=0)
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class BTreeIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = BTreeIndex
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def test_suffix(self):
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self.assertEqual(BTreeIndex.suffix, 'btree')
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def test_deconstruction(self):
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index = BTreeIndex(fields=['title'], name='test_title_btree', fillfactor=80)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.BTreeIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {'fields': ['title'], 'name': 'test_title_btree', 'fillfactor': 80})
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class GinIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = GinIndex
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def test_suffix(self):
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self.assertEqual(GinIndex.suffix, 'gin')
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def test_deconstruction(self):
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index = GinIndex(
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fields=['title'],
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name='test_title_gin',
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fastupdate=True,
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gin_pending_list_limit=128,
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)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.GinIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {
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'fields': ['title'],
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'name': 'test_title_gin',
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'fastupdate': True,
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'gin_pending_list_limit': 128,
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})
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class GistIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = GistIndex
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def test_suffix(self):
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self.assertEqual(GistIndex.suffix, 'gist')
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def test_deconstruction(self):
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index = GistIndex(fields=['title'], name='test_title_gist', buffering=False, fillfactor=80)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.GistIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {
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'fields': ['title'],
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'name': 'test_title_gist',
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'buffering': False,
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'fillfactor': 80,
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})
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class HashIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = HashIndex
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def test_suffix(self):
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self.assertEqual(HashIndex.suffix, 'hash')
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def test_deconstruction(self):
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index = HashIndex(fields=['title'], name='test_title_hash', fillfactor=80)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.HashIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {'fields': ['title'], 'name': 'test_title_hash', 'fillfactor': 80})
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class SpGistIndexTests(IndexTestMixin, PostgreSQLSimpleTestCase):
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index_class = SpGistIndex
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def test_suffix(self):
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self.assertEqual(SpGistIndex.suffix, 'spgist')
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def test_deconstruction(self):
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index = SpGistIndex(fields=['title'], name='test_title_spgist', fillfactor=80)
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path, args, kwargs = index.deconstruct()
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self.assertEqual(path, 'django.contrib.postgres.indexes.SpGistIndex')
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self.assertEqual(args, ())
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self.assertEqual(kwargs, {'fields': ['title'], 'name': 'test_title_spgist', 'fillfactor': 80})
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@modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})
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class SchemaTests(PostgreSQLTestCase):
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get_opclass_query = '''
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SELECT opcname, c.relname FROM pg_opclass AS oc
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JOIN pg_index as i on oc.oid = ANY(i.indclass)
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JOIN pg_class as c on c.oid = i.indexrelid
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WHERE c.relname = %s
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'''
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def get_constraints(self, table):
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"""
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Get the indexes on the table using a new cursor.
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"""
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with connection.cursor() as cursor:
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return connection.introspection.get_constraints(cursor, table)
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def test_gin_index(self):
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# Ensure the table is there and doesn't have an index.
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self.assertNotIn('field', self.get_constraints(IntegerArrayModel._meta.db_table))
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# Add the index
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index_name = 'integer_array_model_field_gin'
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index = GinIndex(fields=['field'], name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(IntegerArrayModel, index)
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constraints = self.get_constraints(IntegerArrayModel._meta.db_table)
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# Check gin index was added
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self.assertEqual(constraints[index_name]['type'], GinIndex.suffix)
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# Drop the index
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with connection.schema_editor() as editor:
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editor.remove_index(IntegerArrayModel, index)
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self.assertNotIn(index_name, self.get_constraints(IntegerArrayModel._meta.db_table))
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def test_gin_fastupdate(self):
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index_name = 'integer_array_gin_fastupdate'
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index = GinIndex(fields=['field'], name=index_name, fastupdate=False)
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with connection.schema_editor() as editor:
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editor.add_index(IntegerArrayModel, index)
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constraints = self.get_constraints(IntegerArrayModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], 'gin')
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self.assertEqual(constraints[index_name]['options'], ['fastupdate=off'])
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with connection.schema_editor() as editor:
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editor.remove_index(IntegerArrayModel, index)
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self.assertNotIn(index_name, self.get_constraints(IntegerArrayModel._meta.db_table))
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def test_partial_gin_index(self):
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with register_lookup(CharField, Length):
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index_name = 'char_field_gin_partial_idx'
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index = GinIndex(fields=['field'], name=index_name, condition=Q(field__length=40))
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], 'gin')
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_partial_gin_index_with_tablespace(self):
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with register_lookup(CharField, Length):
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index_name = 'char_field_gin_partial_idx'
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index = GinIndex(
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fields=['field'],
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name=index_name,
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condition=Q(field__length=40),
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db_tablespace='pg_default',
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)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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self.assertIn('TABLESPACE "pg_default" ', str(index.create_sql(CharFieldModel, editor)))
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], 'gin')
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_gin_parameters(self):
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index_name = 'integer_array_gin_params'
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index = GinIndex(fields=['field'], name=index_name, fastupdate=True, gin_pending_list_limit=64)
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with connection.schema_editor() as editor:
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editor.add_index(IntegerArrayModel, index)
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constraints = self.get_constraints(IntegerArrayModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], 'gin')
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self.assertEqual(constraints[index_name]['options'], ['gin_pending_list_limit=64', 'fastupdate=on'])
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with connection.schema_editor() as editor:
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editor.remove_index(IntegerArrayModel, index)
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self.assertNotIn(index_name, self.get_constraints(IntegerArrayModel._meta.db_table))
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def test_trigram_op_class_gin_index(self):
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index_name = 'trigram_op_class_gin'
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index = GinIndex(OpClass(F('scene'), name='gin_trgm_ops'), name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(Scene, index)
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with editor.connection.cursor() as cursor:
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cursor.execute(self.get_opclass_query, [index_name])
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self.assertCountEqual(cursor.fetchall(), [('gin_trgm_ops', index_name)])
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constraints = self.get_constraints(Scene._meta.db_table)
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self.assertIn(index_name, constraints)
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self.assertIn(constraints[index_name]['type'], GinIndex.suffix)
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with connection.schema_editor() as editor:
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editor.remove_index(Scene, index)
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self.assertNotIn(index_name, self.get_constraints(Scene._meta.db_table))
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def test_cast_search_vector_gin_index(self):
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index_name = 'cast_search_vector_gin'
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index = GinIndex(Cast('field', SearchVectorField()), name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(TextFieldModel, index)
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sql = index.create_sql(TextFieldModel, editor)
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table = TextFieldModel._meta.db_table
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constraints = self.get_constraints(table)
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self.assertIn(index_name, constraints)
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self.assertIn(constraints[index_name]['type'], GinIndex.suffix)
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self.assertIs(sql.references_column(table, 'field'), True)
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self.assertIn('::tsvector', str(sql))
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with connection.schema_editor() as editor:
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editor.remove_index(TextFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(table))
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def test_bloom_index(self):
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index_name = 'char_field_model_field_bloom'
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index = BloomIndex(fields=['field'], name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], BloomIndex.suffix)
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_bloom_parameters(self):
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index_name = 'char_field_model_field_bloom_params'
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index = BloomIndex(fields=['field'], name=index_name, length=512, columns=[3])
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], BloomIndex.suffix)
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self.assertEqual(constraints[index_name]['options'], ['length=512', 'col1=3'])
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_brin_index(self):
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index_name = 'char_field_model_field_brin'
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index = BrinIndex(fields=['field'], name=index_name, pages_per_range=4)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], BrinIndex.suffix)
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self.assertEqual(constraints[index_name]['options'], ['pages_per_range=4'])
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_brin_parameters(self):
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index_name = 'char_field_brin_params'
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index = BrinIndex(fields=['field'], name=index_name, autosummarize=True)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], BrinIndex.suffix)
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self.assertEqual(constraints[index_name]['options'], ['autosummarize=on'])
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_btree_index(self):
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# Ensure the table is there and doesn't have an index.
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self.assertNotIn('field', self.get_constraints(CharFieldModel._meta.db_table))
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# Add the index.
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index_name = 'char_field_model_field_btree'
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index = BTreeIndex(fields=['field'], name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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# The index was added.
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self.assertEqual(constraints[index_name]['type'], BTreeIndex.suffix)
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# Drop the index.
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_btree_parameters(self):
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index_name = 'integer_array_btree_fillfactor'
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index = BTreeIndex(fields=['field'], name=index_name, fillfactor=80)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], BTreeIndex.suffix)
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self.assertEqual(constraints[index_name]['options'], ['fillfactor=80'])
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_gist_index(self):
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# Ensure the table is there and doesn't have an index.
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self.assertNotIn('field', self.get_constraints(CharFieldModel._meta.db_table))
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# Add the index.
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index_name = 'char_field_model_field_gist'
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index = GistIndex(fields=['field'], name=index_name)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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# The index was added.
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self.assertEqual(constraints[index_name]['type'], GistIndex.suffix)
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# Drop the index.
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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def test_gist_parameters(self):
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index_name = 'integer_array_gist_buffering'
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index = GistIndex(fields=['field'], name=index_name, buffering=True, fillfactor=80)
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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constraints = self.get_constraints(CharFieldModel._meta.db_table)
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self.assertEqual(constraints[index_name]['type'], GistIndex.suffix)
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self.assertEqual(constraints[index_name]['options'], ['buffering=on', 'fillfactor=80'])
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with connection.schema_editor() as editor:
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editor.remove_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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|
@skipUnlessDBFeature('supports_covering_gist_indexes')
|
|
def test_gist_include(self):
|
|
index_name = 'scene_gist_include_setting'
|
|
index = GistIndex(name=index_name, fields=['scene'], include=['setting'])
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(Scene, index)
|
|
constraints = self.get_constraints(Scene._meta.db_table)
|
|
self.assertIn(index_name, constraints)
|
|
self.assertEqual(constraints[index_name]['type'], GistIndex.suffix)
|
|
self.assertEqual(constraints[index_name]['columns'], ['scene', 'setting'])
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(Scene, index)
|
|
self.assertNotIn(index_name, self.get_constraints(Scene._meta.db_table))
|
|
|
|
def test_gist_include_not_supported(self):
|
|
index_name = 'gist_include_exception'
|
|
index = GistIndex(fields=['scene'], name=index_name, include=['setting'])
|
|
msg = 'Covering GiST indexes requires PostgreSQL 12+.'
|
|
with self.assertRaisesMessage(NotSupportedError, msg):
|
|
with mock.patch(
|
|
'django.db.backends.postgresql.features.DatabaseFeatures.supports_covering_gist_indexes',
|
|
False,
|
|
):
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(Scene, index)
|
|
self.assertNotIn(index_name, self.get_constraints(Scene._meta.db_table))
|
|
|
|
def test_tsvector_op_class_gist_index(self):
|
|
index_name = 'tsvector_op_class_gist'
|
|
index = GistIndex(
|
|
OpClass(
|
|
SearchVector('scene', 'setting', config='english'),
|
|
name='tsvector_ops',
|
|
),
|
|
name=index_name,
|
|
)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(Scene, index)
|
|
sql = index.create_sql(Scene, editor)
|
|
table = Scene._meta.db_table
|
|
constraints = self.get_constraints(table)
|
|
self.assertIn(index_name, constraints)
|
|
self.assertIn(constraints[index_name]['type'], GistIndex.suffix)
|
|
self.assertIs(sql.references_column(table, 'scene'), True)
|
|
self.assertIs(sql.references_column(table, 'setting'), True)
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(Scene, index)
|
|
self.assertNotIn(index_name, self.get_constraints(table))
|
|
|
|
def test_hash_index(self):
|
|
# Ensure the table is there and doesn't have an index.
|
|
self.assertNotIn('field', self.get_constraints(CharFieldModel._meta.db_table))
|
|
# Add the index.
|
|
index_name = 'char_field_model_field_hash'
|
|
index = HashIndex(fields=['field'], name=index_name)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(CharFieldModel, index)
|
|
constraints = self.get_constraints(CharFieldModel._meta.db_table)
|
|
# The index was added.
|
|
self.assertEqual(constraints[index_name]['type'], HashIndex.suffix)
|
|
# Drop the index.
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(CharFieldModel, index)
|
|
self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
|
|
|
|
def test_hash_parameters(self):
|
|
index_name = 'integer_array_hash_fillfactor'
|
|
index = HashIndex(fields=['field'], name=index_name, fillfactor=80)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(CharFieldModel, index)
|
|
constraints = self.get_constraints(CharFieldModel._meta.db_table)
|
|
self.assertEqual(constraints[index_name]['type'], HashIndex.suffix)
|
|
self.assertEqual(constraints[index_name]['options'], ['fillfactor=80'])
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(CharFieldModel, index)
|
|
self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
|
|
|
|
def test_spgist_index(self):
|
|
# Ensure the table is there and doesn't have an index.
|
|
self.assertNotIn('field', self.get_constraints(CharFieldModel._meta.db_table))
|
|
# Add the index.
|
|
index_name = 'char_field_model_field_spgist'
|
|
index = SpGistIndex(fields=['field'], name=index_name)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(CharFieldModel, index)
|
|
constraints = self.get_constraints(CharFieldModel._meta.db_table)
|
|
# The index was added.
|
|
self.assertEqual(constraints[index_name]['type'], SpGistIndex.suffix)
|
|
# Drop the index.
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(CharFieldModel, index)
|
|
self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
|
|
|
|
def test_spgist_parameters(self):
|
|
index_name = 'integer_array_spgist_fillfactor'
|
|
index = SpGistIndex(fields=['field'], name=index_name, fillfactor=80)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(CharFieldModel, index)
|
|
constraints = self.get_constraints(CharFieldModel._meta.db_table)
|
|
self.assertEqual(constraints[index_name]['type'], SpGistIndex.suffix)
|
|
self.assertEqual(constraints[index_name]['options'], ['fillfactor=80'])
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(CharFieldModel, index)
|
|
self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
|
|
|
|
def test_op_class(self):
|
|
index_name = 'test_op_class'
|
|
index = Index(
|
|
OpClass(Lower('field'), name='text_pattern_ops'),
|
|
name=index_name,
|
|
)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(TextFieldModel, index)
|
|
with editor.connection.cursor() as cursor:
|
|
cursor.execute(self.get_opclass_query, [index_name])
|
|
self.assertCountEqual(cursor.fetchall(), [('text_pattern_ops', index_name)])
|
|
|
|
def test_op_class_descending_collation(self):
|
|
collation = connection.features.test_collations.get('non_default')
|
|
if not collation:
|
|
self.skipTest(
|
|
'This backend does not support case-insensitive collations.'
|
|
)
|
|
index_name = 'test_op_class_descending_collation'
|
|
index = Index(
|
|
Collate(
|
|
OpClass(Lower('field'), name='text_pattern_ops').desc(nulls_last=True),
|
|
collation=collation,
|
|
),
|
|
name=index_name,
|
|
)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(TextFieldModel, index)
|
|
self.assertIn(
|
|
'COLLATE %s' % editor.quote_name(collation),
|
|
str(index.create_sql(TextFieldModel, editor)),
|
|
)
|
|
with editor.connection.cursor() as cursor:
|
|
cursor.execute(self.get_opclass_query, [index_name])
|
|
self.assertCountEqual(cursor.fetchall(), [('text_pattern_ops', index_name)])
|
|
table = TextFieldModel._meta.db_table
|
|
constraints = self.get_constraints(table)
|
|
self.assertIn(index_name, constraints)
|
|
self.assertEqual(constraints[index_name]['orders'], ['DESC'])
|
|
with connection.schema_editor() as editor:
|
|
editor.remove_index(TextFieldModel, index)
|
|
self.assertNotIn(index_name, self.get_constraints(table))
|
|
|
|
def test_op_class_descending_partial(self):
|
|
index_name = 'test_op_class_descending_partial'
|
|
index = Index(
|
|
OpClass(Lower('field'), name='text_pattern_ops').desc(),
|
|
name=index_name,
|
|
condition=Q(field__contains='China'),
|
|
)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(TextFieldModel, index)
|
|
with editor.connection.cursor() as cursor:
|
|
cursor.execute(self.get_opclass_query, [index_name])
|
|
self.assertCountEqual(cursor.fetchall(), [('text_pattern_ops', index_name)])
|
|
constraints = self.get_constraints(TextFieldModel._meta.db_table)
|
|
self.assertIn(index_name, constraints)
|
|
self.assertEqual(constraints[index_name]['orders'], ['DESC'])
|
|
|
|
def test_op_class_descending_partial_tablespace(self):
|
|
index_name = 'test_op_class_descending_partial_tablespace'
|
|
index = Index(
|
|
OpClass(Lower('field').desc(), name='text_pattern_ops'),
|
|
name=index_name,
|
|
condition=Q(field__contains='China'),
|
|
db_tablespace='pg_default',
|
|
)
|
|
with connection.schema_editor() as editor:
|
|
editor.add_index(TextFieldModel, index)
|
|
self.assertIn(
|
|
'TABLESPACE "pg_default" ',
|
|
str(index.create_sql(TextFieldModel, editor))
|
|
)
|
|
with editor.connection.cursor() as cursor:
|
|
cursor.execute(self.get_opclass_query, [index_name])
|
|
self.assertCountEqual(cursor.fetchall(), [('text_pattern_ops', index_name)])
|
|
constraints = self.get_constraints(TextFieldModel._meta.db_table)
|
|
self.assertIn(index_name, constraints)
|
|
self.assertEqual(constraints[index_name]['orders'], ['DESC'])
|