From 1223669ba8df38f9bf927ae78e8a573b07d50893 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Knut=20Olav=20L=C3=B8ite?= <koloite@gmail.com>
Date: Fri, 20 Dec 2024 18:17:41 +0100
Subject: [PATCH] build: run samples during tests

Automatically run all samples as part of the tests.
---
 .github/workflows/samples.yaml                | 30 ++++++++++++++
 Gemfile                                       |  4 +-
 examples/snippets/Rakefile                    | 32 ++++++++++++---
 .../snippets/array-data-type/application.rb   |  6 +--
 .../array-data-type/config/database.yml       |  1 +
 .../snippets/array-data-type/db/schema.rb     | 31 ---------------
 .../bit-reversed-sequence/application.rb      |  4 --
 .../bit-reversed-sequence/config/database.yml |  1 +
 .../bit-reversed-sequence/db/schema.rb        | 31 ---------------
 examples/snippets/bulk-insert/application.rb  |  4 --
 .../snippets/bulk-insert/config/database.yml  |  1 +
 examples/snippets/bulk-insert/db/schema.rb    | 31 ---------------
 .../snippets/commit-timestamp/application.rb  |  4 --
 .../commit-timestamp/config/database.yml      |  1 +
 .../snippets/commit-timestamp/db/schema.rb    | 34 ----------------
 examples/snippets/config/environment.rb       |  4 ++
 .../snippets/create-records/application.rb    |  6 +--
 .../create-records/config/database.yml        |  1 +
 examples/snippets/create-records/db/schema.rb | 31 ---------------
 .../snippets/date-data-type/application.rb    |  6 +--
 .../date-data-type/config/database.yml        |  1 +
 examples/snippets/date-data-type/db/schema.rb | 26 -------------
 .../snippets/generated-column/application.rb  |  4 --
 .../generated-column/config/database.yml      |  1 +
 .../snippets/generated-column/db/schema.rb    | 26 -------------
 examples/snippets/hints/application.rb        |  4 --
 examples/snippets/hints/config/database.yml   |  1 +
 examples/snippets/hints/db/schema.rb          | 33 ----------------
 .../application.rb                            |  6 +--
 .../config/database.yml                       |  1 +
 .../db/schema.rb                              | 37 ------------------
 .../interleaved-tables/application.rb         |  6 +--
 .../interleaved-tables/config/database.yml    |  1 +
 .../snippets/interleaved-tables/db/schema.rb  | 39 -------------------
 .../interleaved-tables/models/album.rb        |  8 +++-
 .../interleaved-tables/models/track.rb        |  6 ++-
 examples/snippets/migrations/application.rb   |  4 --
 .../snippets/migrations/config/database.yml   |  1 +
 examples/snippets/migrations/db/schema.rb     | 38 ------------------
 examples/snippets/mutations/application.rb    |  4 --
 .../snippets/mutations/config/database.yml    |  1 +
 examples/snippets/mutations/db/schema.rb      | 32 ---------------
 .../optimistic-locking/application.rb         |  4 --
 .../optimistic-locking/config/database.yml    |  1 +
 .../snippets/optimistic-locking/db/schema.rb  | 34 ----------------
 .../snippets/partitioned-dml/application.rb   |  4 --
 .../partitioned-dml/config/database.yml       |  1 +
 .../snippets/partitioned-dml/db/schema.rb     | 31 ---------------
 examples/snippets/query-logs/application.rb   |  8 +---
 .../snippets/query-logs/config/database.yml   |  1 +
 examples/snippets/query-logs/db/schema.rb     | 31 ---------------
 examples/snippets/quickstart/application.rb   |  4 --
 .../snippets/quickstart/config/database.yml   |  1 +
 examples/snippets/quickstart/db/schema.rb     | 31 ---------------
 .../read-only-transactions/application.rb     |  4 --
 .../config/database.yml                       |  1 +
 .../read-only-transactions/db/schema.rb       | 31 ---------------
 .../read-write-transactions/application.rb    |  6 +--
 .../config/database.yml                       |  1 +
 .../read-write-transactions/db/schema.rb      | 32 ---------------
 examples/snippets/stale-reads/application.rb  |  4 --
 .../snippets/stale-reads/config/database.yml  |  1 +
 examples/snippets/stale-reads/db/schema.rb    | 31 ---------------
 examples/snippets/tags/application.rb         |  4 --
 examples/snippets/tags/config/database.yml    |  1 +
 examples/snippets/tags/db/schema.rb           | 31 ---------------
 .../timestamp-data-type/application.rb        |  4 --
 .../timestamp-data-type/config/database.yml   |  1 +
 .../snippets/timestamp-data-type/db/schema.rb | 26 -------------
 69 files changed, 103 insertions(+), 769 deletions(-)
 create mode 100644 .github/workflows/samples.yaml
 delete mode 100644 examples/snippets/array-data-type/db/schema.rb
 delete mode 100644 examples/snippets/bit-reversed-sequence/db/schema.rb
 delete mode 100644 examples/snippets/bulk-insert/db/schema.rb
 delete mode 100644 examples/snippets/commit-timestamp/db/schema.rb
 delete mode 100644 examples/snippets/create-records/db/schema.rb
 delete mode 100644 examples/snippets/date-data-type/db/schema.rb
 delete mode 100644 examples/snippets/generated-column/db/schema.rb
 delete mode 100644 examples/snippets/hints/db/schema.rb
 delete mode 100644 examples/snippets/interleaved-tables-before-7.1/db/schema.rb
 delete mode 100644 examples/snippets/interleaved-tables/db/schema.rb
 delete mode 100644 examples/snippets/migrations/db/schema.rb
 delete mode 100644 examples/snippets/mutations/db/schema.rb
 delete mode 100644 examples/snippets/optimistic-locking/db/schema.rb
 delete mode 100644 examples/snippets/partitioned-dml/db/schema.rb
 delete mode 100644 examples/snippets/query-logs/db/schema.rb
 delete mode 100644 examples/snippets/quickstart/db/schema.rb
 delete mode 100644 examples/snippets/read-only-transactions/db/schema.rb
 delete mode 100644 examples/snippets/read-write-transactions/db/schema.rb
 delete mode 100644 examples/snippets/stale-reads/db/schema.rb
 delete mode 100644 examples/snippets/tags/db/schema.rb
 delete mode 100644 examples/snippets/timestamp-data-type/db/schema.rb

diff --git a/.github/workflows/samples.yaml b/.github/workflows/samples.yaml
new file mode 100644
index 00000000..e237daed
--- /dev/null
+++ b/.github/workflows/samples.yaml
@@ -0,0 +1,30 @@
+on:
+  pull_request:
+name: samples
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      max-parallel: 4
+      matrix:
+        ruby: ["3.1", "3.2", "3.3"]
+        ar: ["~> 6.1.0", "~> 7.0.0", "~> 7.1.0", "~> 7.2.0", "~> 8.0.0"]
+        # Exclude combinations that are not supported.
+        exclude:
+          - ruby: "3.1"
+            ar: "~> 8.0.0"
+    env:
+      AR_VERSION: ${{ matrix.ar }}
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        bundler-cache: false
+        ruby-version: ${{ matrix.ruby }}
+    - name: Install dependencies
+      run: bundle install
+    - name: Run samples
+      run: bundle exec rake all
+      working-directory: examples/snippets
diff --git a/Gemfile b/Gemfile
index 25477334..607c61ac 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,8 +8,8 @@ gem "activerecord", ar_version
 gem "ostruct"
 gem "minitest", "~> 5.25.0"
 gem "minitest-rg", "~> 5.3.0"
-gem "pry", "~> 0.13.0"
-gem "pry-byebug", "~> 3.9.0"
+gem "pry", "~> 0.14.2"
+gem "pry-byebug", "~> 3.10.1"
 # Add sqlite3 for testing for compatibility with other adapters.
 gem 'sqlite3'
 
diff --git a/examples/snippets/Rakefile b/examples/snippets/Rakefile
index 35b98d6d..5acc07b6 100644
--- a/examples/snippets/Rakefile
+++ b/examples/snippets/Rakefile
@@ -7,19 +7,37 @@
 require_relative "config/environment"
 require "docker"
 
-desc "Lists all available samples."
-task :list do
-  samples = Dir.entries(".").select do |entry|
+def fetch_samples
+  Dir.entries(".").select do |entry|
     File.directory?(File.join(".", entry)) \
-     && !%w[. ..].include?(entry) \
-     && File.exist?(File.join(".", entry, "application.rb"))
+      && !%w[. ..].include?(entry) \
+      && File.exist?(File.join(".", entry, "application.rb"))
   end
+end
+
+desc "Lists all available samples."
+task :list do
+  samples = fetch_samples
   puts "Available samples: "
   samples.sort.each { |dir| puts "  #{dir}" }
   puts ""
   puts "Run a sample with the command `bundle exec rake run\\[<sample-name>\\]`"
 end
 
+desc "Runs all samples."
+task :all do
+  samples = fetch_samples
+  ar_version = ENV.fetch "AR_VERSION", "~> 7.1.0"
+  less_than_7_1 = ar_version.dup.to_s.sub("~>", "").strip < "7.1.0"
+  samples.delete "interleaved-tables" if less_than_7_1
+  samples.delete "interleaved-tables-before-7.1" unless less_than_7_1
+  samples.delete "bit-reversed-sequence" if less_than_7_1
+  samples.delete "query-logs" if less_than_7_1
+  samples.each do |sample|
+    run_sample sample
+  end
+end
+
 desc "Runs a simple ActiveRecord tutorial on a Spanner emulator."
 task :run, [:sample] do |_t, args|
   sample = args[:sample]
@@ -28,7 +46,11 @@ task :run, [:sample] do |_t, args|
     puts ""
     sample = "quickstart"
   end
+  run_sample sample
+end
 
+def run_sample sample
+  puts "Running #{sample}"
   puts "Downloading Spanner emulator image..."
   Docker::Image.create "fromImage" => "gcr.io/cloud-spanner-emulator/emulator:latest"
   puts "Creating Spanner emulator container..."
diff --git a/examples/snippets/array-data-type/application.rb b/examples/snippets/array-data-type/application.rb
index cebf8fd7..f32c4190 100644
--- a/examples/snippets/array-data-type/application.rb
+++ b/examples/snippets/array-data-type/application.rb
@@ -9,7 +9,7 @@
 require_relative "models/entity_with_array_types"
 
 class Application
-  def self.run # rubocop:disable Metrics/AbcSize
+  def self.run
     # Create a record with all array types.
     record = EntityWithArrayTypes.create \
       col_array_string: ["value1", "value2", "value3"],
@@ -35,10 +35,6 @@ def self.run # rubocop:disable Metrics/AbcSize
     puts "Bytes array: #{record.col_array_bytes.map(&:read)}"
     puts "Date array: #{record.col_array_date}"
     puts "Timestamp array: #{record.col_array_timestamp}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/array-data-type/config/database.yml b/examples/snippets/array-data-type/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/array-data-type/config/database.yml
+++ b/examples/snippets/array-data-type/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/array-data-type/db/schema.rb b/examples/snippets/array-data-type/db/schema.rb
deleted file mode 100644
index 918e0d0d..00000000
--- a/examples/snippets/array-data-type/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "entity_with_array_types", id: { limit: 8 }, force: :cascade do |t|
-    t.string "col_array_string"
-    t.integer "col_array_int64", limit: 8
-    t.float "col_array_float64"
-    t.decimal "col_array_numeric"
-    t.boolean "col_array_bool"
-    t.binary "col_array_bytes"
-    t.date "col_array_date"
-    t.time "col_array_timestamp"
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/bit-reversed-sequence/application.rb b/examples/snippets/bit-reversed-sequence/application.rb
index 89504bde..1b00caa1 100644
--- a/examples/snippets/bit-reversed-sequence/application.rb
+++ b/examples/snippets/bit-reversed-sequence/application.rb
@@ -22,10 +22,6 @@ def self.run
 
     # List all singers, albums and tracks.
     list_singers_albums
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 
   def self.find_album singerid, albumid
diff --git a/examples/snippets/bit-reversed-sequence/config/database.yml b/examples/snippets/bit-reversed-sequence/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/bit-reversed-sequence/config/database.yml
+++ b/examples/snippets/bit-reversed-sequence/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/bit-reversed-sequence/db/schema.rb b/examples/snippets/bit-reversed-sequence/db/schema.rb
deleted file mode 100644
index 227d2ebd..00000000
--- a/examples/snippets/bit-reversed-sequence/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema[7.1].define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", primary_key: ["singerid", "albumid"], force: :cascade do |t|
-    t.integer "singerid", limit: 8, null: false
-    t.integer "albumid", limit: 8, null: false
-    t.string "title"
-  end
-
-  create_table "singers", primary_key: "singerid", default: -> { "GET_NEXT_SEQUENCE_VALUE(SEQUENCE singer_sequence)" }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/bulk-insert/application.rb b/examples/snippets/bulk-insert/application.rb
index 5a332488..34acf2d3 100644
--- a/examples/snippets/bulk-insert/application.rb
+++ b/examples/snippets/bulk-insert/application.rb
@@ -54,10 +54,6 @@ def self.run # rubocop:disable Metrics/AbcSize
         puts "    with album #{a.title} with id #{a.id}"
       end
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/bulk-insert/config/database.yml b/examples/snippets/bulk-insert/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/bulk-insert/config/database.yml
+++ b/examples/snippets/bulk-insert/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/bulk-insert/db/schema.rb b/examples/snippets/bulk-insert/db/schema.rb
deleted file mode 100644
index 44205d95..00000000
--- a/examples/snippets/bulk-insert/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/commit-timestamp/application.rb b/examples/snippets/commit-timestamp/application.rb
index 62ea01c1..1116fef1 100644
--- a/examples/snippets/commit-timestamp/application.rb
+++ b/examples/snippets/commit-timestamp/application.rb
@@ -43,10 +43,6 @@ def self.run # rubocop:disable Metrics/AbcSize
     puts "Singer and album updated:"
     puts "#{singer.first_name} #{singer.last_name} (Last updated: #{singer.last_updated.strftime format})"
     puts "   #{album.title} (Last updated: #{album.last_updated.strftime format})"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/commit-timestamp/config/database.yml b/examples/snippets/commit-timestamp/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/commit-timestamp/config/database.yml
+++ b/examples/snippets/commit-timestamp/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/commit-timestamp/db/schema.rb b/examples/snippets/commit-timestamp/db/schema.rb
deleted file mode 100644
index 3bce4e80..00000000
--- a/examples/snippets/commit-timestamp/db/schema.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.decimal "marketing_budget"
-    t.integer "singer_id", limit: 8
-    t.time "last_updated", allow_commit_timestamp: true
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-    t.time "last_updated", allow_commit_timestamp: true
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/config/environment.rb b/examples/snippets/config/environment.rb
index 29ed328f..899d32c1 100644
--- a/examples/snippets/config/environment.rb
+++ b/examples/snippets/config/environment.rb
@@ -9,6 +9,10 @@
 
 Dir["../../lib/*.rb"].each { |file| require file }
 
+if ActiveRecord.version >= Gem::Version.create("7.2.0")
+  ActiveRecord::ConnectionAdapters.register "spanner", "ActiveRecord::ConnectionAdapters::SpannerAdapter"
+end
+
 Bundler.require
 
 ActiveRecord::Base.establish_connection(
diff --git a/examples/snippets/create-records/application.rb b/examples/snippets/create-records/application.rb
index 95183f45..d1a19805 100644
--- a/examples/snippets/create-records/application.rb
+++ b/examples/snippets/create-records/application.rb
@@ -13,7 +13,7 @@ class Application
   def self.run
     # Creating a single record without an explicit transaction will automatically save it to the database.
     # It is not recommended to call Entity.create repeatedly to insert multiple records, as each call will
-    # use a separate Spanner transaction. Instead multiple records should be created by passing an array of
+    # use a separate Spanner transaction. Instead, multiple records should be created by passing an array of
     # entities to the Entity.create method.
     singer = Singer.create first_name: "Dave", last_name: "Allison"
     puts ""
@@ -32,10 +32,6 @@ def self.run
     singers.each do |s|
       puts "  Created singer #{s.first_name} #{s.last_name} with id #{s.id}"
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/create-records/config/database.yml b/examples/snippets/create-records/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/create-records/config/database.yml
+++ b/examples/snippets/create-records/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/create-records/db/schema.rb b/examples/snippets/create-records/db/schema.rb
deleted file mode 100644
index 44205d95..00000000
--- a/examples/snippets/create-records/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/date-data-type/application.rb b/examples/snippets/date-data-type/application.rb
index 81ecadc0..b07b2b07 100644
--- a/examples/snippets/date-data-type/application.rb
+++ b/examples/snippets/date-data-type/application.rb
@@ -17,7 +17,7 @@ def self.run
       puts "#{"#{singer.first_name} #{singer.last_name}".ljust 30}#{singer.birth_date}"
     end
 
-    # Update the birth date of a random singer using the current system time. Any time and timezone information will be
+    # Update the birthdate of a random singer using the current system time. Any time and timezone information will be
     # lost after saving the record as a DATE only contains the year, month and day-of-month information.
     singer = Singer.all.sample
     singer.update birth_date: Time.now
@@ -25,10 +25,6 @@ def self.run
     puts ""
     puts "Updated birth date to current system time:"
     puts "#{"#{singer.first_name} #{singer.last_name}".ljust 30}#{singer.birth_date}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/date-data-type/config/database.yml b/examples/snippets/date-data-type/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/date-data-type/config/database.yml
+++ b/examples/snippets/date-data-type/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/date-data-type/db/schema.rb b/examples/snippets/date-data-type/db/schema.rb
deleted file mode 100644
index 77bfb5ef..00000000
--- a/examples/snippets/date-data-type/db/schema.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-    t.date "birth_date"
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/generated-column/application.rb b/examples/snippets/generated-column/application.rb
index 1ab132c9..c686b592 100644
--- a/examples/snippets/generated-column/application.rb
+++ b/examples/snippets/generated-column/application.rb
@@ -27,10 +27,6 @@ def self.run
     singer.reload
     puts ""
     puts "Singer updated: #{singer.full_name}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/generated-column/config/database.yml b/examples/snippets/generated-column/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/generated-column/config/database.yml
+++ b/examples/snippets/generated-column/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/generated-column/db/schema.rb b/examples/snippets/generated-column/db/schema.rb
deleted file mode 100644
index 347c57af..00000000
--- a/examples/snippets/generated-column/db/schema.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name", limit: 100
-    t.string "last_name", limit: 200, null: false
-    t.virtual "full_name", type: :string, limit: 300, null: false, as: "COALESCE(first_name || ' ', '') || last_name", stored: true
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/hints/application.rb b/examples/snippets/hints/application.rb
index fd1375cf..26ef7002 100644
--- a/examples/snippets/hints/application.rb
+++ b/examples/snippets/hints/application.rb
@@ -37,10 +37,6 @@ def self.run
           .distinct.order("last_name, first_name").each do |singer|
       puts singer.full_name
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/hints/config/database.yml b/examples/snippets/hints/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/hints/config/database.yml
+++ b/examples/snippets/hints/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/hints/db/schema.rb b/examples/snippets/hints/db/schema.rb
deleted file mode 100644
index f0377638..00000000
--- a/examples/snippets/hints/db/schema.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name", limit: 100
-    t.string "last_name", limit: 200, null: false
-    t.virtual "full_name", type: :string, limit: 300, null: false, as: "COALESCE(first_name || ' ', '') || last_name", stored: true
-    t.index ["full_name"], name: "index_singers_on_full_name", order: { full_name: :asc }
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/interleaved-tables-before-7.1/application.rb b/examples/snippets/interleaved-tables-before-7.1/application.rb
index cc41cc50..b80f3121 100644
--- a/examples/snippets/interleaved-tables-before-7.1/application.rb
+++ b/examples/snippets/interleaved-tables-before-7.1/application.rb
@@ -13,7 +13,7 @@
 class Application
   def self.run
     # List all singers, albums and tracks.
-    list_singers_albums_tracks
+    list_singers_albums
 
     # Create a new album with some tracks.
     create_new_album
@@ -28,10 +28,6 @@ def self.run
     # Try to delete an album that has at least one track. This IS possible as tracks IS marked with
     # ON DELETE CASCADE.
     delete_album_with_tracks
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 
   def self.find_singer
diff --git a/examples/snippets/interleaved-tables-before-7.1/config/database.yml b/examples/snippets/interleaved-tables-before-7.1/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/interleaved-tables-before-7.1/config/database.yml
+++ b/examples/snippets/interleaved-tables-before-7.1/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/interleaved-tables-before-7.1/db/schema.rb b/examples/snippets/interleaved-tables-before-7.1/db/schema.rb
deleted file mode 100644
index 7b5fe1e7..00000000
--- a/examples/snippets/interleaved-tables-before-7.1/db/schema.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", primary_key: "albumid", force: :cascade do |t|
-    t.integer "singerid", limit: 8, null: false
-    t.string "title"
-  end
-
-  create_table "singers", primary_key: "singerid", force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  create_table "tracks", primary_key: "trackid", force: :cascade do |t|
-    t.integer "singerid", limit: 8, null: false
-    t.integer "albumid", limit: 8, null: false
-    t.string "title"
-    t.decimal "duration"
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/interleaved-tables/application.rb b/examples/snippets/interleaved-tables/application.rb
index 9e325cc1..3d351ba6 100644
--- a/examples/snippets/interleaved-tables/application.rb
+++ b/examples/snippets/interleaved-tables/application.rb
@@ -13,7 +13,7 @@
 class Application
   def self.run
     # List all singers, albums and tracks.
-    list_singers_albums_tracks
+    list_singers_albums
 
     # Create a new album with some tracks.
     create_new_album
@@ -28,10 +28,6 @@ def self.run
     # Try to delete an album that has at least one track. This IS possible as tracks IS marked with
     # ON DELETE CASCADE.
     delete_album_with_tracks
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 
   def self.find_singer
diff --git a/examples/snippets/interleaved-tables/config/database.yml b/examples/snippets/interleaved-tables/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/interleaved-tables/config/database.yml
+++ b/examples/snippets/interleaved-tables/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/interleaved-tables/db/schema.rb b/examples/snippets/interleaved-tables/db/schema.rb
deleted file mode 100644
index 4f031c25..00000000
--- a/examples/snippets/interleaved-tables/db/schema.rb
+++ /dev/null
@@ -1,39 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema[7.1].define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", primary_key: ["singerid", "albumid"], force: :cascade do |t|
-    t.integer "singerid", limit: 8
-    t.integer "albumid", limit: 8
-    t.string "title"
-  end
-
-  create_table "singers", primary_key: "singerid", force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  create_table "tracks", primary_key: ["singerid", "albumid", "trackid"], force: :cascade do |t|
-    t.integer "singerid", limit: 8
-    t.integer "albumid", limit: 8
-    t.integer "trackid", limit: 8
-    t.string "title"
-    t.decimal "duration"
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/interleaved-tables/models/album.rb b/examples/snippets/interleaved-tables/models/album.rb
index 2f94f52d..12077f04 100644
--- a/examples/snippets/interleaved-tables/models/album.rb
+++ b/examples/snippets/interleaved-tables/models/album.rb
@@ -11,6 +11,10 @@ class Album < ActiveRecord::Base
 
   # `tracks` is defined as INTERLEAVE IN PARENT `albums`.
   # The primary key of `albums` is (`singerid`, `albumid`).
-  # Rails 7.1 requires using query_constraints to define a composite foreign key.
-  has_many :tracks, query_constraints: [:singerid, :albumid]
+  if ActiveRecord::VERSION::MAJOR >= 8
+    has_many :tracks, foreign_key: [:singerid, :albumid]
+  else
+    # Rails 7.1 requires using query_constraints to define a composite foreign key.
+    has_many :tracks, query_constraints: [:singerid, :albumid]
+  end
 end
diff --git a/examples/snippets/interleaved-tables/models/track.rb b/examples/snippets/interleaved-tables/models/track.rb
index f095f861..17125979 100644
--- a/examples/snippets/interleaved-tables/models/track.rb
+++ b/examples/snippets/interleaved-tables/models/track.rb
@@ -8,7 +8,11 @@ class Track < ActiveRecord::Base
   # `tracks` is defined as INTERLEAVE IN PARENT `albums`.
   # The primary key of `albums` is (`singerid`, `albumid`).
   # Rails 7.1 requires a composite primary key in a belongs_to relationship to be specified as query_constraints.
-  belongs_to :album, query_constraints: [:singerid, :albumid]
+  if ActiveRecord::VERSION::MAJOR >= 8
+    belongs_to :album, foreign_key: [:singerid, :albumid]
+  else
+    belongs_to :album, query_constraints: [:singerid, :albumid]
+  end
 
   # `tracks` also has a `singerid` column that can be used to associate a Track with a Singer.
   belongs_to :singer, foreign_key: :singerid
diff --git a/examples/snippets/migrations/application.rb b/examples/snippets/migrations/application.rb
index ccbdfa7f..bcce3d20 100644
--- a/examples/snippets/migrations/application.rb
+++ b/examples/snippets/migrations/application.rb
@@ -16,10 +16,6 @@ def self.run
     tables.rows.each do |row|
       puts row[:TABLE_NAME]
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/migrations/config/database.yml b/examples/snippets/migrations/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/migrations/config/database.yml
+++ b/examples/snippets/migrations/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/migrations/db/schema.rb b/examples/snippets/migrations/db/schema.rb
deleted file mode 100644
index 93f4bf6f..00000000
--- a/examples/snippets/migrations/db/schema.rb
+++ /dev/null
@@ -1,38 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singers_id", limit: 8
-    t.index ["singers_id"], name: "index_albums_on_singers_id", order: { singers_id: :asc }
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  create_table "tracks", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.decimal "duration"
-    t.integer "albums_id", limit: 8
-    t.index ["albums_id"], name: "index_tracks_on_albums_id", order: { albums_id: :asc }
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/mutations/application.rb b/examples/snippets/mutations/application.rb
index d520a4f0..74e8f472 100644
--- a/examples/snippets/mutations/application.rb
+++ b/examples/snippets/mutations/application.rb
@@ -37,10 +37,6 @@ def self.run # rubocop:disable Metrics/AbcSize
     puts "Budgets after commit:"
     puts "Marketing budget #{from_album.title}: #{from_album.reload.marketing_budget}"
     puts "Marketing budget #{to_album.title}: #{to_album.reload.marketing_budget}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/mutations/config/database.yml b/examples/snippets/mutations/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/mutations/config/database.yml
+++ b/examples/snippets/mutations/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/mutations/db/schema.rb b/examples/snippets/mutations/db/schema.rb
deleted file mode 100644
index 72a2302c..00000000
--- a/examples/snippets/mutations/db/schema.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.decimal "marketing_budget"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/optimistic-locking/application.rb b/examples/snippets/optimistic-locking/application.rb
index 0724110e..a3ff8d13 100644
--- a/examples/snippets/optimistic-locking/application.rb
+++ b/examples/snippets/optimistic-locking/application.rb
@@ -38,10 +38,6 @@ def self.run
 
     singer.reload
     puts "Reloaded singer data: #{singer.first_name} #{singer.last_name}, version: #{singer.lock_version}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/optimistic-locking/config/database.yml b/examples/snippets/optimistic-locking/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/optimistic-locking/config/database.yml
+++ b/examples/snippets/optimistic-locking/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/optimistic-locking/db/schema.rb b/examples/snippets/optimistic-locking/db/schema.rb
deleted file mode 100644
index f3209f44..00000000
--- a/examples/snippets/optimistic-locking/db/schema.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.decimal "marketing_budget"
-    t.integer "singer_id", limit: 8
-    t.integer "lock_version", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-    t.integer "lock_version", limit: 8
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/partitioned-dml/application.rb b/examples/snippets/partitioned-dml/application.rb
index 77962022..83a4f792 100644
--- a/examples/snippets/partitioned-dml/application.rb
+++ b/examples/snippets/partitioned-dml/application.rb
@@ -38,10 +38,6 @@ def self.run
     puts ""
     puts "Singers in the database: #{singer_count}"
     puts "Albums in the database: #{album_count}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/partitioned-dml/config/database.yml b/examples/snippets/partitioned-dml/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/partitioned-dml/config/database.yml
+++ b/examples/snippets/partitioned-dml/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/partitioned-dml/db/schema.rb b/examples/snippets/partitioned-dml/db/schema.rb
deleted file mode 100644
index 15764fa4..00000000
--- a/examples/snippets/partitioned-dml/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name", limit: 100
-    t.string "last_name", limit: 200, null: false
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/query-logs/application.rb b/examples/snippets/query-logs/application.rb
index 101e90df..d60ac7a2 100644
--- a/examples/snippets/query-logs/application.rb
+++ b/examples/snippets/query-logs/application.rb
@@ -17,10 +17,6 @@ def self.run
     puts "Query all Albums and include an automatically generated request tag"
     albums = Album.all
     puts "Queried #{albums.length} albums using an automatically generated request tag"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 
   def self.enable_query_logs
@@ -55,14 +51,14 @@ def self.enable_query_logs
   def self.enable_query_logs_without_rails
     # This block manually enables Query Logs without a full Rails application.
     # This should normally not be needed in your application.
-    ActiveRecord::QueryLogs.taggings.merge!(
+    ActiveRecord::QueryLogs.taggings = {
       application:  "example-app",
       action:       "run-test-application",
       pid:          -> { Process.pid.to_s },
       socket:       ->(context) { context[:connection].pool.db_config.socket },
       db_host:      ->(context) { context[:connection].pool.db_config.host },
       database:     ->(context) { context[:connection].pool.db_config.database }
-    )
+    }
   end
 end
 
diff --git a/examples/snippets/query-logs/config/database.yml b/examples/snippets/query-logs/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/query-logs/config/database.yml
+++ b/examples/snippets/query-logs/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/query-logs/db/schema.rb b/examples/snippets/query-logs/db/schema.rb
deleted file mode 100644
index dc7b860a..00000000
--- a/examples/snippets/query-logs/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema[7.1].define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/quickstart/application.rb b/examples/snippets/quickstart/application.rb
index 1269961f..80fb5482 100644
--- a/examples/snippets/quickstart/application.rb
+++ b/examples/snippets/quickstart/application.rb
@@ -41,10 +41,6 @@ def self.run # rubocop:disable Metrics/AbcSize
     Singer.where(last_name.matches("A%")).each do |s|
       puts "#{s.first_name} #{s.last_name}"
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/quickstart/config/database.yml b/examples/snippets/quickstart/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/quickstart/config/database.yml
+++ b/examples/snippets/quickstart/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/quickstart/db/schema.rb b/examples/snippets/quickstart/db/schema.rb
deleted file mode 100644
index 44205d95..00000000
--- a/examples/snippets/quickstart/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/read-only-transactions/application.rb b/examples/snippets/read-only-transactions/application.rb
index cd0c43aa..16a7223d 100644
--- a/examples/snippets/read-only-transactions/application.rb
+++ b/examples/snippets/read-only-transactions/application.rb
@@ -67,10 +67,6 @@ def self.run # rubocop:disable Metrics/AbcSize
         puts "This error is expected."
       end
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/read-only-transactions/config/database.yml b/examples/snippets/read-only-transactions/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/read-only-transactions/config/database.yml
+++ b/examples/snippets/read-only-transactions/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/read-only-transactions/db/schema.rb b/examples/snippets/read-only-transactions/db/schema.rb
deleted file mode 100644
index 44205d95..00000000
--- a/examples/snippets/read-only-transactions/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/read-write-transactions/application.rb b/examples/snippets/read-write-transactions/application.rb
index 38e8bb02..4f0db251 100644
--- a/examples/snippets/read-write-transactions/application.rb
+++ b/examples/snippets/read-write-transactions/application.rb
@@ -10,7 +10,7 @@
 require_relative "models/album"
 
 class Application
-  def self.run # rubocop:disable Metrics/AbcSize
+  def self.run
     from_album = nil
     to_album = nil
     # Use a read/write transaction to execute multiple statements as an atomic unit.
@@ -29,10 +29,6 @@ def self.run # rubocop:disable Metrics/AbcSize
     puts "Budgets after update:"
     puts "Marketing budget #{from_album.title}: #{from_album.reload.marketing_budget}"
     puts "Marketing budget #{to_album.title}: #{to_album.reload.marketing_budget}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/read-write-transactions/config/database.yml b/examples/snippets/read-write-transactions/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/read-write-transactions/config/database.yml
+++ b/examples/snippets/read-write-transactions/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/read-write-transactions/db/schema.rb b/examples/snippets/read-write-transactions/db/schema.rb
deleted file mode 100644
index 72a2302c..00000000
--- a/examples/snippets/read-write-transactions/db/schema.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.decimal "marketing_budget"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/stale-reads/application.rb b/examples/snippets/stale-reads/application.rb
index d767354b..59bd0ac2 100644
--- a/examples/snippets/stale-reads/application.rb
+++ b/examples/snippets/stale-reads/application.rb
@@ -53,10 +53,6 @@ def self.run # rubocop:disable Metrics/AbcSize
     puts ""
     puts "Updated album title: #{album.title}"
     puts "Title somewhere during the last 10 seconds: #{album_max_staleness&.title}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/stale-reads/config/database.yml b/examples/snippets/stale-reads/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/stale-reads/config/database.yml
+++ b/examples/snippets/stale-reads/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/stale-reads/db/schema.rb b/examples/snippets/stale-reads/db/schema.rb
deleted file mode 100644
index 44205d95..00000000
--- a/examples/snippets/stale-reads/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/tags/application.rb b/examples/snippets/tags/application.rb
index cdd82269..525a8c2a 100644
--- a/examples/snippets/tags/application.rb
+++ b/examples/snippets/tags/application.rb
@@ -22,10 +22,6 @@ def self.run
       albums = Album.annotate("request_tag: query-all-albums", "transaction_tag: sample-transaction").all
       puts "Queried #{albums.length} albums using a request and a transaction tag"
     end
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/tags/config/database.yml b/examples/snippets/tags/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/tags/config/database.yml
+++ b/examples/snippets/tags/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/tags/db/schema.rb b/examples/snippets/tags/db/schema.rb
deleted file mode 100644
index 44205d95..00000000
--- a/examples/snippets/tags/db/schema.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "albums", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.integer "singer_id", limit: 8
-  end
-
-  create_table "singers", id: { limit: 8 }, force: :cascade do |t|
-    t.string "first_name"
-    t.string "last_name"
-  end
-
-  add_foreign_key "albums", "singers"
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end
diff --git a/examples/snippets/timestamp-data-type/application.rb b/examples/snippets/timestamp-data-type/application.rb
index 84684278..7437ac16 100644
--- a/examples/snippets/timestamp-data-type/application.rb
+++ b/examples/snippets/timestamp-data-type/application.rb
@@ -32,10 +32,6 @@ def self.run
     # Simulate that the application is now running in the timezone America/Los_Angeles.
     Time.zone = "America/Los_Angeles"
     puts "#{'Meeting time in the local timezone (America/Los_Angeles):'.ljust 60} #{meeting.local_meeting_time}"
-
-    puts ""
-    puts "Press any key to end the application"
-    $stdin.getch
   end
 end
 
diff --git a/examples/snippets/timestamp-data-type/config/database.yml b/examples/snippets/timestamp-data-type/config/database.yml
index 905be603..f9f072b8 100644
--- a/examples/snippets/timestamp-data-type/config/database.yml
+++ b/examples/snippets/timestamp-data-type/config/database.yml
@@ -6,3 +6,4 @@ development:
   database: testdb
   pool: 5
   timeout: 5000
+  schema_dump: false
diff --git a/examples/snippets/timestamp-data-type/db/schema.rb b/examples/snippets/timestamp-data-type/db/schema.rb
deleted file mode 100644
index f68d7cb5..00000000
--- a/examples/snippets/timestamp-data-type/db/schema.rb
+++ /dev/null
@@ -1,26 +0,0 @@
-# This file is auto-generated from the current state of the database. Instead
-# of editing this file, please use the migrations feature of Active Record to
-# incrementally modify your database, and then regenerate this schema definition.
-#
-# This file is the source Rails uses to define your schema when running `bin/rails
-# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
-# be faster and is potentially less error prone than running all of your
-# migrations from scratch. Old migrations may fail to apply correctly if those
-# migrations use external dependencies or application code.
-#
-# It's strongly recommended that you check this file into your version control system.
-
-ActiveRecord::Schema.define(version: 1) do
-  connection.start_batch_ddl
-
-  create_table "meetings", id: { limit: 8 }, force: :cascade do |t|
-    t.string "title"
-    t.time "meeting_time"
-    t.string "meeting_timezone"
-  end
-
-  connection.run_batch
-rescue
-  abort_batch
-  raise
-end