37 lines
931 B
MySQL
37 lines
931 B
MySQL
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-- recreate tables (can't add a referential constraint on an existing table)
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create table objects_ng(
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uid text primary key not null,
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x int,
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y int,
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z int,
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posx int,
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posy int,
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posz int,
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type varchar,
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mtime bigint
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);
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create table object_attributes_ng(
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object_uid text not null,
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key varchar not null,
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value varchar not null,
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FOREIGN KEY (object_uid) references objects_ng(uid) ON DELETE CASCADE
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primary key(object_uid, key)
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);
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-- migrate data
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insert into objects_ng(uid,x,y,z,posx,posy,posz,type,mtime)
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select id,x,y,z,posx,posy,posz,type,mtime from objects;
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insert into object_attributes_ng(object_uid, key, value)
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select objectid, key, value from object_attributes;
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-- remove old tables
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drop table object_attributes;
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drop table objects;
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-- rename tables
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alter table objects_ng rename to objects;
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alter table object_attributes_ng rename to object_attributes;
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-- journal mode, just in case
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pragma journal_mode=wal;
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