LOAD DATABASE
     FROM      mysql://{{ .mysql_user }}:{{ .mysql_password }}@mysql:3306/{{ .source_schema }}
     INTO      pgsql://{{ .pg_user }}:{{ .pg_password }}@postgres:5432/{{ .target_schema }}

WITH data only,
    workers = 8, concurrency = 1,
    multiple readers per thread, rows per range = 10000,
    prefetch rows = 10000, batch rows = 2500,
    create no tables, create no indexes,
    preserve index names

SET PostgreSQL PARAMETERS
    maintenance_work_mem to '128MB',
    work_mem to '12MB'

SET MySQL PARAMETERS
    net_read_timeout  = '120',
    net_write_timeout = '120'

 CAST column Channels.Type to "channel_type" drop typemod,
    column Teams.Type to "team_type" drop typemod,
    column UploadSessions.Type to "upload_session_type" drop typemod,
    column ChannelBookmarks.Type to "channel_bookmark_type" drop typemod,
    column Drafts.Priority to text,
    type int when (= precision 11) to integer drop typemod,
    type bigint when (= precision 20) to bigint drop typemod,
    type text to varchar drop typemod using remove-null-characters,
    type tinyint when (<= precision 4) to boolean using tinyint-to-boolean,
    type json to jsonb drop typemod using remove-null-characters

EXCLUDING TABLE NAMES MATCHING ~<IR_>, ~<focalboard>

BEFORE LOAD DO
    $$ ALTER SCHEMA public RENAME TO {{ .source_schema }}; $$,
    $$ TRUNCATE TABLE {{ .source_schema }}.systems; $$,
    $$ DROP INDEX IF EXISTS {{ .source_schema }}.idx_posts_message_txt; $$,
    $$ DROP INDEX IF EXISTS {{ .source_schema }}.idx_fileinfo_content_txt; $$

AFTER LOAD DO
     $$ UPDATE {{ .source_schema }}.db_migrations set name='add_createat_to_teamembers' where version=92; $$,
     $$ CREATE INDEX IF NOT EXISTS idx_posts_message_txt ON {{ .source_schema }}.posts USING gin(to_tsvector('english', message)); $$,
     $$ CREATE INDEX IF NOT EXISTS idx_fileinfo_content_txt ON {{ .source_schema }}.fileinfo USING gin(to_tsvector('english', content)); $$,
     $$ ALTER SCHEMA {{ .source_schema }} RENAME TO public; $$,
     $$ SELECT pg_catalog.set_config('search_path', '"$user", public', false); $$,
     $$ ALTER USER {{ .pg_user }} SET SEARCH_PATH TO 'public'; $$;