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Optimise indexes and autoanalyze #2157

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f57981c
order of index columns reduces index size
CodiePP Jul 6, 2026
a023786
more indexes; faster autoanalyze for better query planning
CodiePP Jul 6, 2026
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2 changes: 1 addition & 1 deletion cardano-db/src/Cardano/Db/Schema/Core/StakeDelegation.hs
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Expand Up @@ -265,7 +265,7 @@ data EpochStake = EpochStake
type instance Key EpochStake = EpochStakeId

instance DbInfo EpochStake where
uniqueFields _ = ["addr_id", "pool_id", "epoch_no"]
uniqueFields _ = ["epoch_no", "addr_id", "pool_id"]
unnestParamTypes _ =
[ ("addr_id", "bigint[]")
, ("pool_id", "bigint[]")
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2 changes: 1 addition & 1 deletion schema/migration-2-0029-20240117.sql
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Expand Up @@ -15,7 +15,7 @@ BEGIN
EXECUTE 'ALTER TABLE "instant_reward" DROP COLUMN "earned_epoch"' ;
EXECUTE 'ALTER TABLE "instant_reward" ADD COLUMN "earned_epoch" bigint NOT NULL GENERATED ALWAYS AS ((CASE WHEN spendable_epoch >= 1 then spendable_epoch-1 else 0 end)) STORED' ;
EXECUTE 'ALTER TABLE "instant_reward" DROP COLUMN "pool_id"' ;
EXECUTE 'ALTER TABLE "instant_reward" ADD CONSTRAINT "unique_instant_reward" UNIQUE("addr_id","earned_epoch","type")' ;
EXECUTE 'ALTER TABLE "instant_reward" ADD CONSTRAINT "unique_instant_reward" UNIQUE("earned_epoch","addr_id","type")' ;

EXECUTE 'DELETE FROM "reward" WHERE "pool_id" IS NULL' ;
EXECUTE 'ALTER TABLE "reward" ALTER COLUMN "pool_id" SET NOT NULL' ;
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10 changes: 10 additions & 0 deletions schema/migration-4-0010-20260704.sql
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@@ -0,0 +1,10 @@

CREATE INDEX IF NOT EXISTS idx_redeemer_tx_id ON redeemer(tx_id);
CREATE INDEX IF NOT EXISTS idx_collateral_tx_out_tx_id ON collateral_tx_out(tx_id);
CREATE INDEX IF NOT EXISTS idx_reference_tx_in_tx_in_id ON reference_tx_in(tx_in_id);
CREATE INDEX IF NOT EXISTS idx_tx_metadata_tx_id_key ON tx_metadata(tx_id, key);
DROP INDEX IF EXISTS idx_tx_metadata_tx_id;

-- faster autoanalyze on heavy tables:
ALTER TABLE public.block SET (autovacuum_analyze_scale_factor = 0.02, autovacuum_analyze_threshold = 5000);
ALTER TABLE public.tx SET (autovacuum_analyze_scale_factor = 0.02, autovacuum_analyze_threshold = 5000);
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