This application allows users to generate and insert records into Cloud Spanner.

Following are key characteristics of this application:

• There're interleaved tables being used.
• Parent table Persons has contains all Cloud Spanner data types.
• Application takes 3-4 minutes to insert all tables when you select 100k records for parent.
• Application assumes you use Default Application Credentials for GCP.

Please run following DDL on Cloud Spanner console to create a schema:

CREATE TABLE Persons ( person_id STRING(200) NOT NULL, update_timestamp TIMESTAMP, firstname STRING(MAX), lastname STRING(MAX), sibling_count INT64, child_count INT64, height FLOAT64, weight FLOAT64, birthdate DATE, account_creation_date DATE, given_names ARRAY<STRING(MAX)>, is_active BOOL, profile_picture BYTES(MAX), ) PRIMARY KEY (person_id);

CREATE TABLE Friends ( person_id STRING(200) NOT NULL, friend_id STRING(200) NOT NULL, status STRING(20), connection_date DATE, ) PRIMARY KEY (person_id, friend_id), INTERLEAVE IN PARENT Persons ON DELETE CASCADE;

CREATE TABLE Activities ( person_id STRING(200) NOT NULL, activity_id STRING(200) NOT NULL, activity_type INT64 NOT NULL, ) PRIMARY KEY (person_id, activity_id), INTERLEAVE IN PARENT Persons ON DELETE CASCADE;

CREATE TABLE Posts ( person_id STRING(200) NOT NULL, activity_id STRING(200) NOT NULL, post_id STRING(200) NOT NULL, post_content BYTES(MAX), post_timestamp TIMESTAMP, ) PRIMARY KEY (person_id, activity_id, post_id) , INTERLEAVE IN PARENT Activities ON DELETE CASCADE;

Clean up: gcloud spanner databases ddl update $DATABASE_NAME --instance=$INSTANCE_NAME --ddl='drop table Posts' gcloud spanner databases ddl update $DATABASE_NAME --instance=$INSTANCE_NAME --ddl='drop table Activities' gcloud spanner databases ddl update $DATABASE_NAME --instance=$INSTANCE_NAME --ddl='drop table Friends' gcloud spanner databases ddl update $DATABASE_NAME --instance=$INSTANCE_NAME --ddl='drop table Persons'