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Create an index for the hash component of derivation filenames

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This is to aid rendering of narinfo files. They're requested with the path
/HASH.narinfo, so to quickly find the relevant derivation, this index can be
used.
This commit is contained in:
Christopher Baines 2019-12-26 09:28:20 +00:00
parent a8d58e0541
commit ff01144e87
4 changed files with 22 additions and 0 deletions
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7
sqitch/deploy/derivations_hash_index.sql Normal file
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-- Deploy guix-data-service:derivations_hash_index to pg
BEGIN;
CREATE INDEX derivations_hash ON derivations (substring(file_name from 12 for 32));
COMMIT;