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Optimize the recent transactions query #119

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merged 2 commits into from
Jan 4, 2023
Merged

Optimize the recent transactions query #119

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54c38fe
Optimize the recent transactions query
enobayram Jan 4, 2023
b2923e4
Avoid the JOIN on the blocks table entirely
enobayram Jan 4, 2023
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4 changes: 1 addition & 3 deletions exec/Chainweb/Server.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -650,11 +650,9 @@ queryRecentTxs logger pool = do
runSelectReturningList $ select $ do
limit_ 20 $ orderBy_ (desc_ . getHeight) $ do
tx <- all_ (_cddb_transactions database)
blk <- all_ (_cddb_blocks database)
guard_ (_tx_block tx `references_` blk)
return
( (_tx_chainId tx)
, (_block_height blk)
, (_tx_height tx)
, (unBlockId $ _tx_block tx)
, (_tx_creationTime tx)
, (_tx_requestKey tx)
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