388 lines
19 KiB
Python
388 lines
19 KiB
Python
from unittest import mock
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from django.contrib.postgres.indexes import (
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BrinIndex, BTreeIndex, GinIndex, GistIndex, HashIndex, SpGistIndex,
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)
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from django.db import connection
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from django.db.models import CharField
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from django.db.models.functions import Length
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from django.db.models.query_utils import Q
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from django.db.utils import NotSupportedError
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from django.test import skipUnlessDBFeature
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from django.test.utils import register_lookup
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from . import PostgreSQLTestCase
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from .models import CharFieldModel, IntegerArrayModel
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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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@skipUnlessDBFeature('has_brin_index_support')
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class BrinIndexTests(IndexTestMixin, PostgreSQLTestCase):
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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, PostgreSQLTestCase):
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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, PostgreSQLTestCase):
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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, PostgreSQLTestCase):
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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, PostgreSQLTestCase):
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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, PostgreSQLTestCase):
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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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class SchemaTests(PostgreSQLTestCase):
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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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@skipUnlessDBFeature('has_gin_pending_list_limit')
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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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@mock.patch('django.db.backends.postgresql.features.DatabaseFeatures.has_gin_pending_list_limit', False)
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def test_gin_parameters_exception(self):
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index_name = 'gin_options_exception'
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index = GinIndex(fields=['field'], name=index_name, gin_pending_list_limit=64)
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msg = 'GIN option gin_pending_list_limit requires PostgreSQL 9.5+.'
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with self.assertRaisesMessage(NotSupportedError, msg):
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with connection.schema_editor() as editor:
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editor.add_index(IntegerArrayModel, index)
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self.assertNotIn(index_name, self.get_constraints(IntegerArrayModel._meta.db_table))
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@skipUnlessDBFeature('has_brin_index_support')
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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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@skipUnlessDBFeature('has_brin_index_support', 'has_brin_autosummarize')
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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_brin_index_not_supported(self):
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index_name = 'brin_index_exception'
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index = BrinIndex(fields=['field'], name=index_name)
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with self.assertRaisesMessage(NotSupportedError, 'BRIN indexes require PostgreSQL 9.5+.'):
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with mock.patch('django.db.backends.postgresql.features.DatabaseFeatures.has_brin_index_support', False):
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with connection.schema_editor() as editor:
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editor.add_index(CharFieldModel, index)
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self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
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@skipUnlessDBFeature('has_brin_index_support')
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def test_brin_autosummarize_not_supported(self):
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index_name = 'brin_options_exception'
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index = BrinIndex(fields=['field'], name=index_name, autosummarize=True)
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with self.assertRaisesMessage(NotSupportedError, 'BRIN option autosummarize requires PostgreSQL 10+.'):
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with mock.patch('django.db.backends.postgresql.features.DatabaseFeatures.has_brin_autosummarize', False):
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with connection.schema_editor() as editor:
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editor.add_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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def test_hash_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_hash'
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index = HashIndex(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'], HashIndex.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_hash_parameters(self):
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index_name = 'integer_array_hash_fillfactor'
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index = HashIndex(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'], HashIndex.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_spgist_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_spgist'
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index = SpGistIndex(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'], SpGistIndex.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_spgist_parameters(self):
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index_name = 'integer_array_spgist_fillfactor'
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index = SpGistIndex(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'], SpGistIndex.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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