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store: Add explicit locking to a migration #6024

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Merged
lutter merged 1 commit into from
May 20, 2025
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store: Add explicit locking to a migration #6024

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9 changes: 9 additions & 0 deletions store/postgres/migrations/2025-05-13-173523_split_subgraph_deployment/up.sql
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Original file line number Diff line number Diff line change
@@ -1,3 +1,12 @@

-- Grab locks on all tables we are going to touch; otherwise, concurrently
-- running operations might cause deadlocks
lock table subgraphs.subgraph_deployment in access exclusive mode;
lock table subgraphs.subgraph_manifest in access exclusive mode;
lock table subgraphs.subgraph_error in access exclusive mode;
lock table subgraphs.table_stats in access exclusive mode;
lock table subgraphs.copy_state in access exclusive mode;

create table subgraphs.head (
id int4 primary key,
entity_count int8 not null,
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