error: relation "snapshots" does not exist

Hi,

I keep getting this error even after creating all the tables snapshots and ops from the script provided.

CREATE TABLE IF NOT EXISTS ops (
  collection character varying(255) not null,
  doc_id character varying(255) not null,
  version integer not null,
  operation jsonb not null, -- {v:0, create:{...}} or {v:n, op:[...]}
  PRIMARY KEY (collection, doc_id, version)
);

CREATE TABLE IF NOT EXISTS snapshots (
  collection character varying(255) not null,
  doc_id character varying(255) not null,
  doc_type character varying(255) not null,
  version integer not null,
  data jsonb not null,
  PRIMARY KEY (collection, doc_id)
);

error: relation "snapshots" does not exist
    at Parser.parseErrorMessage (/Users/../workspace/colaboration-demos/sharedb/examples/rich-text-presence/node_modules/pg-protocol/dist/parser.js:283:98)
    at Parser.handlePacket (/Users/../workspace/colaboration-demos/sharedb/examples/rich-text-presence/node_modules/pg-protocol/dist/parser.js:122:29)
    at Parser.parse (/Users/../workspace/colaboration-demos/sharedb/examples/rich-text-presence/node_modules/pg-protocol/dist/parser.js:35:38)
    at Socket.<anonymous> (/Users/../workspace/colaboration-demos/sharedb/examples/rich-text-presence/node_modules/pg-protocol/dist/index.js:11:42)
    at Socket.emit (node:events:520:28)
    at addChunk (node:internal/streams/readable:559:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:510:3)
    at Readable.push (node:internal/streams/readable:390:5)
    at TCP.onStreamRead (node:internal/stream_base_commons:191:23)

Start with the rich-text-presence example and its PostgreSQL setup, then compare the database and schema used by the running example with the SQL that creates ops and snapshots. Reproduce the error and confirm that the example starts without the relation "snapshots" error.