diff options
3 files changed, 40 insertions, 1 deletions
diff --git a/changelogs/unreleased/add-composite-index-on-merge-requests-merge-commit-sha.yml b/changelogs/unreleased/add-composite-index-on-merge-requests-merge-commit-sha.yml new file mode 100644 index 00000000000..9a600282716 --- /dev/null +++ b/changelogs/unreleased/add-composite-index-on-merge-requests-merge-commit-sha.yml @@ -0,0 +1,5 @@ +--- +title: Add index for merge_requests.merge_commit_sha +merge_request: +author: +type: other diff --git a/db/migrate/20170928100231_add_composite_index_on_merge_requests_merge_commit_sha.rb b/db/migrate/20170928100231_add_composite_index_on_merge_requests_merge_commit_sha.rb new file mode 100644 index 00000000000..9f02daf04c1 --- /dev/null +++ b/db/migrate/20170928100231_add_composite_index_on_merge_requests_merge_commit_sha.rb @@ -0,0 +1,33 @@ +# See http://doc.gitlab.com/ce/development/migration_style_guide.html +# for more information on how to write migrations for GitLab. + +class AddCompositeIndexOnMergeRequestsMergeCommitSha < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + # Set this constant to true if this migration requires downtime. + DOWNTIME = false + + # The default index name is too long for PostgreSQL and would thus be + # truncated. + INDEX_NAME = 'index_merge_requests_on_tp_id_and_merge_commit_sha_and_id' + + COLUMNS = [:target_project_id, :merge_commit_sha, :id] + + disable_ddl_transaction! + + def up + return if index_is_present? + + add_concurrent_index(:merge_requests, COLUMNS, name: INDEX_NAME) + end + + def down + return unless index_is_present? + + remove_concurrent_index(:merge_requests, COLUMNS, name: INDEX_NAME) + end + + def index_is_present? + index_exists?(:merge_requests, COLUMNS, name: INDEX_NAME) + end +end diff --git a/db/schema.rb b/db/schema.rb index 330336e8e61..e6200cfccd6 100644 --- a/db/schema.rb +++ b/db/schema.rb @@ -11,7 +11,7 @@ # # It's strongly recommended that you check this file into your version control system. -ActiveRecord::Schema.define(version: 20170921115009) do +ActiveRecord::Schema.define(version: 20170928100231) do # These are extensions that must be enabled in order to support this database enable_extension "plpgsql" @@ -895,6 +895,7 @@ ActiveRecord::Schema.define(version: 20170921115009) do add_index "merge_requests", ["source_project_id", "source_branch"], name: "index_merge_requests_on_source_project_id_and_source_branch", using: :btree add_index "merge_requests", ["target_branch"], name: "index_merge_requests_on_target_branch", using: :btree add_index "merge_requests", ["target_project_id", "iid"], name: "index_merge_requests_on_target_project_id_and_iid", unique: true, using: :btree + add_index "merge_requests", ["target_project_id", "merge_commit_sha", "id"], name: "index_merge_requests_on_tp_id_and_merge_commit_sha_and_id", using: :btree add_index "merge_requests", ["title"], name: "index_merge_requests_on_title", using: :btree add_index "merge_requests", ["title"], name: "index_merge_requests_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"} |