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Route lag-tolerant reads to an optional Postgres read replica (#2084)

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Signed-off-by: Tyler Longwell <tlongwell@block.xyz>
Co-authored-by: npub1qyvc0c5kl4gqv2fd97fsk46tu378sqgy35vc83rvgfwne90sel7s0ed67d <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@sprout-oss.stage.blox.sqprod.co>
Co-authored-by: Tyler Longwell <tlongwell@block.xyz>
This commit is contained in:
Tyler
2026-07-18 22:45:33 -04:00
committed by GitHub
co-authored by npub1qyvc0c5kl4gqv2fd97fsk46tu378sqgy35vc83rvgfwne90sel7s0ed67d Tyler Longwell
parent c81806d1c8
commit 29c48883d3
13 changed files with 2030 additions and 26 deletions
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scripts/attach-schema-partitions.sql
+12 -3
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@@ -14,10 +14,12 @@ BEGIN
WHERE inhparent = 'events'::regclass
AND inhrelid = 'events_p_past'::regclass
) THEN
-- pgschema may copy the parent trigger onto standalone children. Drop
-- that copy before ATTACH; PostgreSQL recreates inherited parent
-- triggers while attaching and rejects a same-named child trigger.
-- pgschema may copy parent triggers onto standalone children. Drop
-- those copies before ATTACH; PostgreSQL recreates inherited parent
-- triggers while attaching and rejects same-named child triggers
-- (both the push-match trigger and the replica-fence floor guard).
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p_past;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p_past;
ALTER TABLE events ATTACH PARTITION events_p_past
FOR VALUES FROM (MINVALUE) TO ('2026-01-01');
END IF;
@@ -28,6 +30,7 @@ BEGIN
AND inhrelid = 'events_p2026_01'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p2026_01;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p2026_01;
ALTER TABLE events ATTACH PARTITION events_p2026_01
FOR VALUES FROM ('2026-01-01') TO ('2026-02-01');
END IF;
@@ -38,6 +41,7 @@ BEGIN
AND inhrelid = 'events_p2026_02'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p2026_02;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p2026_02;
ALTER TABLE events ATTACH PARTITION events_p2026_02
FOR VALUES FROM ('2026-02-01') TO ('2026-03-01');
END IF;
@@ -48,6 +52,7 @@ BEGIN
AND inhrelid = 'events_p2026_03'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p2026_03;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p2026_03;
ALTER TABLE events ATTACH PARTITION events_p2026_03
FOR VALUES FROM ('2026-03-01') TO ('2026-04-01');
END IF;
@@ -58,6 +63,7 @@ BEGIN
AND inhrelid = 'events_p2026_04'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p2026_04;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p2026_04;
ALTER TABLE events ATTACH PARTITION events_p2026_04
FOR VALUES FROM ('2026-04-01') TO ('2026-05-01');
END IF;
@@ -68,6 +74,7 @@ BEGIN
AND inhrelid = 'events_p2026_05'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p2026_05;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p2026_05;
ALTER TABLE events ATTACH PARTITION events_p2026_05
FOR VALUES FROM ('2026-05-01') TO ('2026-06-01');
END IF;
@@ -78,6 +85,7 @@ BEGIN
AND inhrelid = 'events_p2026_06'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p2026_06;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p2026_06;
ALTER TABLE events ATTACH PARTITION events_p2026_06
FOR VALUES FROM ('2026-06-01') TO ('2026-07-01');
END IF;
@@ -88,6 +96,7 @@ BEGIN
AND inhrelid = 'events_p_future'::regclass
) THEN
DROP TRIGGER IF EXISTS events_enqueue_push_match ON events_p_future;
DROP TRIGGER IF EXISTS events_created_at_floor ON events_p_future;
ALTER TABLE events ATTACH PARTITION events_p_future
FOR VALUES FROM ('2026-07-01') TO (MAXVALUE);
END IF;