googleapis · rahul2393 · Feb 26, 2024 · Feb 9, 2024 · Feb 19, 2024 · Feb 20, 2024
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+#!/usr/bin/env python
+
+# Copyright 2024 Google, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""This application demonstrates how to do basic operations using Cloud
+Spanner PostgreSql dialect.
+For more information, see the README.rst under /spanner.
+"""
+from google.cloud import spanner
+from google.cloud.spanner_admin_database_v1.types import spanner_database_admin
+
+OPERATION_TIMEOUT_SECONDS = 240
+
+
+def create_table_with_datatypes(instance_id, database_id):
+ """Creates a table with supported datatypes."""
+ # [START spanner_postgresql_create_table_with_datatypes]
+ # instance_id = "your-spanner-instance"
+ # database_id = "your-spanner-db-id"
+ spanner_client = spanner.Client()
+ instance = spanner_client.instance(instance_id)
+ database = instance.database(database_id)
+
+ request = spanner_database_admin.UpdateDatabaseDdlRequest(
+ database=database.name,
+ statements=[
+ """CREATE TABLE Venues (
+ VenueId BIGINT NOT NULL,
+ VenueName character varying(100),
+ VenueInfo BYTEA,
+ Capacity BIGINT,
+ OutdoorVenue BOOL,
+ PopularityScore FLOAT8,
+ Revenue NUMERIC,
+ LastUpdateTime SPANNER.COMMIT_TIMESTAMP NOT NULL,
+ PRIMARY KEY (VenueId))"""
+ ],
+ )
+ operation = spanner_client.database_admin_api.update_database_ddl(request)
+
+ print("Waiting for operation to complete...")
+ operation.result(OPERATION_TIMEOUT_SECONDS)
+
+ print(
+ "Created Venues table on database {} on instance {}".format(
+ database_id, instance_id
+ )
+ )
+ # [END spanner_postgresql_create_table_with_datatypes]
+
+
+# [START spanner_postgresql_jsonb_add_column]
+def add_jsonb_column(instance_id, database_id):
+ """
+ Alters Venues tables in the database adding a JSONB column.
+ You can create the table by running the `create_table_with_datatypes`
+ sample or by running this DDL statement against your database:
+ CREATE TABLE Venues (
+ VenueId BIGINT NOT NULL,
+ VenueName character varying(100),
+ VenueInfo BYTEA,
+ Capacity BIGINT,
+ OutdoorVenue BOOL,
+ PopularityScore FLOAT8,
+ Revenue NUMERIC,
+ LastUpdateTime SPANNER.COMMIT_TIMESTAMP NOT NULL,
+ PRIMARY KEY (VenueId))
+ """
+ # instance_id = "your-spanner-instance"
+ # database_id = "your-spanner-db-id"
+
+ spanner_client = spanner.Client()
+ instance = spanner_client.instance(instance_id)
+ database = instance.database(database_id)
+
+ request = spanner_database_admin.UpdateDatabaseDdlRequest(
+ database=database.name,
+ statements=["ALTER TABLE Venues ADD COLUMN VenueDetails JSONB"],
+ )
+
+ operation = spanner_client.database_admin_api.update_database_ddl(request)
+
+ print("Waiting for operation to complete...")
+ operation.result(OPERATION_TIMEOUT_SECONDS)
+
+ print(
+ 'Altered table "Venues" on database {} on instance {}.'.format(
+ database_id, instance_id
+ )
+ )
+
+
+# [END spanner_postgresql_jsonb_add_column]
@@ -0,0 +1,119 @@
+# Copyright 2024 Google, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import uuid
+
+import pg_samples as samples
+import pytest
+from google.api_core import exceptions
+from google.cloud.spanner_admin_database_v1.types.common import DatabaseDialect
+from test_utils.retry import RetryErrors
+
+CREATE_TABLE_SINGERS = """\
+CREATE TABLE Singers (
+ SingerId BIGINT NOT NULL,
+ FirstName CHARACTER VARYING(1024),
+ LastName CHARACTER VARYING(1024),
+ SingerInfo BYTEA,
+ FullName CHARACTER VARYING(2048)
+ GENERATED ALWAYS AS (FirstName || ' ' || LastName) STORED,
+ PRIMARY KEY (SingerId)
+)
+"""
+
+CREATE_TABLE_ALBUMS = """\
+CREATE TABLE Albums (
+ SingerId BIGINT NOT NULL,
+ AlbumId BIGINT NOT NULL,
+ AlbumTitle CHARACTER VARYING(1024),
+ PRIMARY KEY (SingerId, AlbumId)
+ ) INTERLEAVE IN PARENT Singers ON DELETE CASCADE
+"""
+
+retry_429 = RetryErrors(exceptions.ResourceExhausted, delay=15)
+
+
+@pytest.fixture(scope="module")
+def sample_name():
+ return "pg_snippets"
+
+
+@pytest.fixture(scope="module")
+def database_dialect():
+ """Spanner dialect to be used for this sample.
+ The dialect is used to initialize the dialect for the database.
+ It can either be GoogleStandardSql or PostgreSql.
+ """
+ return DatabaseDialect.POSTGRESQL
+
+
+@pytest.fixture(scope="module")
+def create_instance_id():
+ """Id for the low-cost instance."""
+ return f"create-instance-{uuid.uuid4().hex[:10]}"
+
+
+@pytest.fixture(scope="module")
+def lci_instance_id():
+ """Id for the low-cost instance."""
+ return f"lci-instance-{uuid.uuid4().hex[:10]}"
+
+
+@pytest.fixture(scope="module")
+def database_id():
+ return f"test-db-{uuid.uuid4().hex[:10]}"
+
+
+@pytest.fixture(scope="module")
+def create_database_id():
+ return f"create-db-{uuid.uuid4().hex[:10]}"
+
+
+@pytest.fixture(scope="module")
+def cmek_database_id():
+ return f"cmek-db-{uuid.uuid4().hex[:10]}"
+
+
+@pytest.fixture(scope="module")
+def default_leader_database_id():
+ return f"leader_db_{uuid.uuid4().hex[:10]}"
+
+
+@pytest.fixture(scope="module")
+def database_ddl():
+ """Sequence of DDL statements used to set up the database.
+ Sample testcase modules can override as needed.
+ """
+ return [CREATE_TABLE_SINGERS, CREATE_TABLE_ALBUMS]
+
+
+@pytest.fixture(scope="module")
+def default_leader():
+ """Default leader for multi-region instances."""
+ return "us-east4"
+
+
+@pytest.mark.dependency(name="create_table_with_datatypes")
+def test_create_table_with_datatypes(capsys, instance_id, sample_database):
+ samples.create_table_with_datatypes(instance_id, sample_database.database_id)
+ out, _ = capsys.readouterr()
+ assert "Created Venues table on database" in out
+
+
+@pytest.mark.dependency(name="add_jsonb_column", depends=["insert_datatypes_data"])
+def test_add_jsonb_column(capsys, instance_id, sample_database):
+ samples.add_jsonb_column(instance_id, sample_database.database_id)
+ out, _ = capsys.readouterr()
+ assert "Waiting for operation to complete..." in out
+ assert 'Altered table "Venues" on database ' in out