56c7da5817
* migrations: add if statements for some queries * add better checks to upgrade posts v6 migration * use "is null" instead of "= null" * fix down script for users v6 * reflect review comments
36 строки
1.2 KiB
SQL
36 строки
1.2 KiB
SQL
DO $$
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<<migrate_root_id>>
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DECLARE
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parentid_exist boolean := false;
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alter_fileids boolean := false;
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alter_props boolean := false;
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BEGIN
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SELECT count(*) != 0 INTO parentid_exist
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FROM information_schema.columns
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WHERE table_name = 'posts'
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AND column_name = 'parentid';
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SELECT count(*) != 0 INTO alter_fileids
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FROM information_schema.columns
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WHERE table_name = 'posts'
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AND column_name = 'fileids'
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AND data_type = 'character varying'
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AND character_maximum_length != 300;
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SELECT count(*) != 0 INTO alter_props
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FROM information_schema.columns
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WHERE table_name = 'posts'
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AND column_name = 'props'
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AND data_type != 'jsonb';
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IF alter_fileids OR alter_props THEN
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IF parentid_exist THEN
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UPDATE posts SET rootid = parentid WHERE rootid = '' AND rootid != parentid;
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ALTER TABLE posts ALTER COLUMN fileids TYPE varchar(300), ALTER COLUMN props TYPE jsonb USING props::jsonb, DROP COLUMN ParentId;
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ELSE
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ALTER TABLE posts ALTER COLUMN fileids TYPE varchar(300), ALTER COLUMN props TYPE jsonb USING props::jsonb;
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END IF;
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END IF;
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END migrate_root_id $$;
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CREATE INDEX IF NOT EXISTS idx_posts_root_id_delete_at ON posts(rootid, deleteat);
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DROP INDEX IF EXISTS idx_posts_root_id;
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