wehub-resource-sync
bf2343b7e4
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12 lines
881 B
SQL
12 lines
881 B
SQL
-- Change entity_extension_time_series.timestamp from VIRTUAL to STORED for performance.
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-- STORED columns are materialized on disk, making unique constraint checks and range
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-- queries on timestamp significantly faster (especially for bulk pipeline status upserts).
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-- MySQL does not allow ALTER from VIRTUAL to STORED directly, so we drop and re-add.
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-- NOTE: This will lock the table for a full rebuild. On large deployments with millions
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-- of rows in entity_extension_time_series, plan for downtime accordingly.
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ALTER TABLE entity_extension_time_series
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DROP INDEX entity_extension_time_series_constraint,
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DROP COLUMN `timestamp`,
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ADD COLUMN `timestamp` bigint unsigned GENERATED ALWAYS AS (json_unquote(json_extract(`json`, _utf8mb4'$.timestamp'))) STORED NOT NULL,
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ADD UNIQUE KEY `entity_extension_time_series_constraint` (`entityFQNHash`, `extension`, `timestamp`);
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