mirror of
https://github.com/overleaf/overleaf.git
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80 lines
2.4 KiB
JavaScript
80 lines
2.4 KiB
JavaScript
/**
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* This is the initial migration, meant to replicate the current state of the
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* history database. If tables already exist, this migration is a noop.
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*/
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exports.up = async function (knex) {
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await knex.raw(`
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CREATE TABLE IF NOT EXISTS chunks (
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id SERIAL,
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doc_id integer NOT NULL,
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end_version integer NOT NULL,
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end_timestamp timestamp without time zone,
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CONSTRAINT chunks_version_non_negative CHECK (end_version >= 0)
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)
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`)
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await knex.raw(`
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CREATE UNIQUE INDEX IF NOT EXISTS index_chunks_on_doc_id_and_end_version
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ON chunks (doc_id, end_version)
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`)
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await knex.raw(`
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CREATE TABLE IF NOT EXISTS old_chunks (
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chunk_id integer NOT NULL PRIMARY KEY,
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doc_id integer NOT NULL,
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end_version integer,
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end_timestamp timestamp without time zone,
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deleted_at timestamp without time zone
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)
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`)
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await knex.raw(`
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CREATE INDEX IF NOT EXISTS index_old_chunks_on_doc_id_and_end_version
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ON old_chunks (doc_id, end_version)
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`)
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await knex.raw(`
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CREATE TABLE IF NOT EXISTS pending_chunks (
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id SERIAL,
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doc_id integer NOT NULL,
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end_version integer NOT NULL,
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end_timestamp timestamp without time zone,
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CONSTRAINT chunks_version_non_negative CHECK (end_version >= 0)
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)
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`)
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await knex.raw(`
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CREATE INDEX IF NOT EXISTS index_pending_chunks_on_doc_id_and_id
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ON pending_chunks (doc_id, id)
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`)
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await knex.raw(`
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CREATE TABLE IF NOT EXISTS blobs (
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hash_bytes bytea NOT NULL PRIMARY KEY,
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byte_length integer NOT NULL,
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string_length integer,
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global boolean,
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CONSTRAINT blobs_byte_length_non_negative CHECK (byte_length >= 0),
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CONSTRAINT blobs_string_length_non_negative
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CHECK (string_length IS NULL OR string_length >= 0)
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)
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`)
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await knex.raw(`
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CREATE TABLE IF NOT EXISTS project_blobs (
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project_id integer NOT NULL,
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hash_bytes bytea NOT NULL,
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byte_length integer NOT NULL,
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string_length integer,
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PRIMARY KEY (project_id, hash_bytes),
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CONSTRAINT project_blobs_byte_length_non_negative
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CHECK (byte_length >= 0),
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CONSTRAINT project_blobs_string_length_non_negative
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CHECK (string_length IS NULL OR string_length >= 0)
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)
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`)
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await knex.raw(`CREATE SEQUENCE IF NOT EXISTS docs_id_seq`)
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}
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exports.down = async function (knex) {
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// Don't do anything on the down migration
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}
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