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70572a2ea7
Also known as the ORM case, it happens that other tools are used to create the target schema. In that case pgloader job is to fill in the exiting target tables with the data from the source tables. We still focus on load speed and pgloader will now DROP the constraints (Primary Key, Unique, Foreign Keys) and indexes before running the COPY statements, and re-install the schema it found in the target database once the data load is done. This behavior is activated when using the “create no tables” option as in the following test-case setup: with create no tables, include drop, truncate Fixes #400, for which I got a test-case to play with!
45 lines
1.5 KiB
Fish
45 lines
1.5 KiB
Fish
load database
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from mysql://root@localhost/sakila
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into postgresql:///sakila
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-- WITH include drop, create tables, no truncate,
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-- create indexes, reset sequences, foreign keys
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-- WITH batch rows = 10000
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WITH concurrency = 1, workers = 6,
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max parallel create index = 4
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-- uncomment the following line to test loading into an already
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-- existing schema, and make sure the schema actually is ready by
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-- having done a first migration without those options:
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--, create no tables, include drop, truncate
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SET maintenance_work_mem to '128MB',
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work_mem to '12MB',
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search_path to 'sakila, public, "$user"'
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CAST type date drop not null drop default using zero-dates-to-null,
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type datetime to timestamp drop default drop not null using zero-dates-to-null
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-- type tinyint to boolean using tinyint-to-boolean,
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-- type year to integer drop typemod -- now a default
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-- MATERIALIZE VIEWS film_list, staff_list
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MATERIALIZE ALL VIEWS
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ALTER TABLE NAMES MATCHING ~/_list$/, 'sales_by_store', ~/sales_by/
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SET SCHEMA 'mv'
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ALTER TABLE NAMES MATCHING 'sales_by_store' RENAME TO 'sales_by_store_list'
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ALTER TABLE NAMES MATCHING 'film' RENAME TO 'films'
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-- INCLUDING ONLY TABLE NAMES MATCHING ~/film/, 'actor'
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-- EXCLUDING TABLE NAMES MATCHING ~<ory>
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BEFORE LOAD DO
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$$ create schema if not exists sakila; $$,
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$$ create schema if not exists mv; $$,
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$$ alter database sakila set search_path to sakila, mv, public; $$;
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