From 533ad4ac834baef990e3ebf613c2b1fe54f13127 Mon Sep 17 00:00:00 2001
From: GitLab Bot <gitlab-bot@gitlab.com>
Date: Mon, 16 Oct 2023 15:12:07 +0000
Subject: Add latest changes from gitlab-org/gitlab@master

---
 ..._for_ci_sources_pipelines_pipeline_id_bigint.rb | 77 ++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 db/post_migrate/20231004091113_swap_columns_for_ci_sources_pipelines_pipeline_id_bigint.rb

(limited to 'db/post_migrate/20231004091113_swap_columns_for_ci_sources_pipelines_pipeline_id_bigint.rb')

diff --git a/db/post_migrate/20231004091113_swap_columns_for_ci_sources_pipelines_pipeline_id_bigint.rb b/db/post_migrate/20231004091113_swap_columns_for_ci_sources_pipelines_pipeline_id_bigint.rb
new file mode 100644
index 00000000000..6ce4e1a4da5
--- /dev/null
+++ b/db/post_migrate/20231004091113_swap_columns_for_ci_sources_pipelines_pipeline_id_bigint.rb
@@ -0,0 +1,77 @@
+# frozen_string_literal: true
+
+class SwapColumnsForCiSourcesPipelinesPipelineIdBigint < Gitlab::Database::Migration[2.1]
+  disable_ddl_transaction!
+
+  TABLE_NAME = :ci_sources_pipelines
+  TARGET_TABLE_NAME = :ci_pipelines
+  TRIGGER_FUNCTION_NAME = :trigger_68d7b6653c7d
+  COLUMN_NAMES = %i[pipeline_id source_pipeline_id]
+  BIGINT_COLUMN_NAMES = %i[pipeline_id_convert_to_bigint source_pipeline_id_convert_to_bigint]
+  FK_NAMES = [
+    :fk_e1bad85861, # for pipeline_id
+    :fk_d4e29af7d7 # for source_pipeline_id
+  ]
+  BIGINT_FK_NAMES = [
+    :fk_c1b5dc6b6f, # for pipeline_id_convert_to_bigint
+    :fk_1df371767f # for source_pipeline_id_convert_to_bigint
+  ]
+  INDEX_NAMES = %i[
+    index_ci_sources_pipelines_on_pipeline_id
+    index_ci_sources_pipelines_on_source_pipeline_id
+  ]
+  BIGINT_INDEX_NAMES = %i[
+    index_ci_sources_pipelines_on_pipeline_id_bigint
+    index_ci_sources_pipelines_on_source_pipeline_id_bigint
+  ]
+
+  def up
+    swap
+  end
+
+  def down
+    swap
+  end
+
+  private
+
+  def swap
+    with_lock_retries(raise_on_exhaustion: true) do
+      # Lock the tables involved.
+      execute "LOCK TABLE #{TARGET_TABLE_NAME}, #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
+
+      # Rename the columns to swap names
+      COLUMN_NAMES.each_with_index do |column_name, i|
+        bigint_column_name = BIGINT_COLUMN_NAMES[i]
+        temp_name = "temp_#{column_name}"
+
+        execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{column_name} TO #{temp_name}"
+        execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{bigint_column_name} TO #{column_name}"
+        execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{temp_name} TO #{bigint_column_name}"
+      end
+
+      # Reset the trigger function
+      execute "ALTER FUNCTION #{quote_column_name(TRIGGER_FUNCTION_NAME)} RESET ALL"
+
+      # Swap fkey constraint
+      FK_NAMES.each_with_index do |fk_name, i|
+        bigint_fk_name = BIGINT_FK_NAMES[i]
+        temp_fk_name = "temp_#{fk_name}"
+
+        execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{fk_name} TO #{temp_fk_name}"
+        execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{bigint_fk_name} TO #{fk_name}"
+        execute "ALTER TABLE #{TABLE_NAME} RENAME CONSTRAINT #{temp_fk_name} TO #{bigint_fk_name}"
+      end
+
+      # Swap index
+      INDEX_NAMES.each_with_index do |index_name, i|
+        bigint_index_name = BIGINT_INDEX_NAMES[i]
+        temp_index_name = "temp_#{index_name}"
+
+        execute "ALTER INDEX #{index_name} RENAME TO #{temp_index_name}"
+        execute "ALTER INDEX #{bigint_index_name} RENAME TO #{index_name}"
+        execute "ALTER INDEX #{temp_index_name} RENAME TO #{bigint_index_name}"
+      end
+    end
+  end
+end
-- 
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