[x] The following schema alternations should be done in production to support [PR #1007](https://github.com/wikimedia/restbase/pull/1007)
```
ALTER TABLE "others_T_parsoid__ng_data2pfX88WDfxDffCFHoTUDoy8"."data" ADD "headers" text;
ALTER TABLE "others_T_parsoid__ng_section9wYKz1EvijuZtgPVP5tq"."data" ADD "headers" text;
ALTER TABLE "others_T_parsoid__ng_html"."data" ADD "headers" text;
ALTER TABLE "others_T_mobile__ng_remaining"."data" ADD "headers" text;
ALTER TABLE "others_T_mobile__ng_lead"."data" ADD "headers" text;
ALTER TABLE "commons_T_parsoid__ng_data2pfX88WDfxDffCFHoTUDoy"."data" ADD "headers" text;
ALTER TABLE "commons_T_parsoid__ng_section9wYKz1EvijuZtgPVP5t"."data" ADD "headers" text;
ALTER TABLE "commons_T_parsoid__ng_html"."data" ADD "headers" text;
ALTER TABLE "commons_T_mobile__ng_remaining"."data" ADD "headers" text;
ALTER TABLE "commons_T_mobile__ng_lead"."data" ADD "headers" text;
ALTER TABLE "wikipedia_T_parsoid__ng_data2pfX88WDfxDffCFHoTUD"."data" ADD "headers" text;
ALTER TABLE "wikipedia_T_parsoid__ng_section9wYKz1EvijuZtgPVP"."data" ADD "headers" text;
ALTER TABLE "wikipedia_T_parsoid__ng_html"."data" ADD "headers" text;
ALTER TABLE "wikipedia_T_mobile__ng_remaining"."data" ADD "headers" text;
ALTER TABLE "wikipedia_T_mobile__ng_lead"."data" ADD "headers" text;
ALTER TABLE "enwiki_T_parsoid__ng_data2pfX88WDfxDffCFHoTUDoy8"."data" ADD "headers" text;
ALTER TABLE "enwiki_T_parsoid__ng_section9wYKz1EvijuZtgPVP5tq"."data" ADD "headers" text;
ALTER TABLE "enwiki_T_parsoid__ng_html"."data" ADD "headers" text;
ALTER TABLE "enwiki_T_mobile__ng_remaining"."data" ADD "headers" text;
ALTER TABLE "enwiki_T_mobile__ng_lead"."data" ADD "headers" text;
```
[x] The following alternations should be done in beta:
```
ALTER TABLE "others_T_parsoid__ng_data2pfX88WDfxDffCFHoTUDoy8"."data" ADD "headers" text;
ALTER TABLE "others_T_parsoid__ng_section9wYKz1EvijuZtgPVP5tq"."data" ADD "headers" text;
ALTER TABLE "others_T_parsoid__ng_html"."data" ADD "headers" text;
ALTER TABLE "others_T_mobile__ng_remaining"."data" ADD "headers" text;
ALTER TABLE "others_T_mobile__ng_lead"."data" ADD "headers" text;
```