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chore: simplify migration script postgres version_4 (#2674)

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Ivan FB 2024-05-07 11:20:54 +02:00 committed by GitHub
parent 38f8b08c7c
commit 91c85738a0
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1 changed files with 1 additions and 64 deletions
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migrations/message_store_postgres/content_script_version_4.nim
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@ -1,72 +1,9 @@
const ContentScriptVersion_4* =
"""
ALTER TABLE IF EXISTS messages_backup RENAME TO messages;
ALTER TABLE messages RENAME TO messages_backup;
CREATE TABLE IF NOT EXISTS messages (
pubsubTopic VARCHAR NOT NULL,
contentTopic VARCHAR NOT NULL,
payload VARCHAR,
version INTEGER NOT NULL,
timestamp BIGINT NOT NULL,
id VARCHAR NOT NULL,
messageHash VARCHAR NOT NULL,
storedAt BIGINT NOT NULL,
meta VARCHAR,
CONSTRAINT messageIndex PRIMARY KEY (messageHash, storedAt)
) PARTITION BY RANGE (storedAt);
DO $$
DECLARE
min_storedAt numeric;
max_storedAt numeric;
min_storedAtSeconds integer = 0;
max_storedAtSeconds integer = 0;
partition_name TEXT;
create_partition_stmt TEXT;
BEGIN
SELECT MIN(storedAt) into min_storedAt
FROM messages_backup;
SELECT MAX(storedAt) into max_storedAt
FROM messages_backup;
min_storedAtSeconds := min_storedAt / 1000000000;
max_storedAtSeconds := max_storedAt / 1000000000;
partition_name := 'messages_' || min_storedAtSeconds || '_' || max_storedAtSeconds;
create_partition_stmt := 'CREATE TABLE ' || partition_name ||
' PARTITION OF messages FOR VALUES FROM (' ||
min_storedAt || ') TO (' || (max_storedAt + 1) || ')';
IF min_storedAtSeconds > 0 AND max_storedAtSeconds > 0 THEN
EXECUTE create_partition_stmt USING partition_name, min_storedAt, max_storedAt;
END IF;
END $$;
INSERT INTO messages (
pubsubTopic,
contentTopic,
payload,
version,
timestamp,
id,
messageHash,
storedAt
)
SELECT pubsubTopic,
contentTopic,
payload,
version,
timestamp,
id,
messageHash,
storedAt
FROM messages_backup;
ALTER TABLE messages ADD meta VARCHAR default null;
CREATE INDEX IF NOT EXISTS i_query ON messages (contentTopic, pubsubTopic, storedAt, id);
DROP TABLE messages_backup;
UPDATE version SET version = 4 WHERE version = 3;
"""