Chnage raw_data type to binary from text

db/migrate/20180326202229_create_ci_job_trace_chunks.rb

@@ -8,7 +8,7 @@ class CreateCiJobTraceChunks < ActiveRecord::Migration
       t.integer :job_id, null: false
       t.integer :chunk_index, null: false
       t.integer :data_store, null: false
-      t.text :raw_data
+      t.binary :raw_data
 
       t.foreign_key :ci_builds, column: :job_id, on_delete: :cascade
       t.index [:job_id, :chunk_index], unique: true

db/migrate/limits_ci_job_trace_chunks_raw_data_for_mysql.rb

@@ -4,6 +4,6 @@ class LimitsCiJobTraceChunksRawDataForMysql < ActiveRecord::Migration
 
     # Mysql needs MEDIUMTEXT type (up to 16MB) rather than TEXT (up to 64KB)
     # Because 'raw_data' is always capped by Ci::JobTraceChunk::CHUNK_SIZE, which is 128KB
-    change_column :ci_job_trace_chunks, :raw_data, :text, limit: 16.megabytes - 1 #MEDIUMTEXT
+    change_column :ci_job_trace_chunks, :raw_data, :binary, limit: 16.megabytes - 1 #MEDIUMTEXT
   end
 end

db/schema.rb

@@ -375,7 +375,7 @@ ActiveRecord::Schema.define(version: 20180418053107) do
     t.integer "job_id", null: false
     t.integer "chunk_index", null: false
     t.integer "data_store", null: false
-    t.text "raw_data"
+    t.binary "raw_data"
   end
 
   add_index "ci_job_trace_chunks", ["job_id", "chunk_index"], name: "index_ci_job_trace_chunks_on_job_id_and_chunk_index", unique: true, using: :btree