Revert "feat: end and reconnect pool after error"

src/middleware/indexer.js

@@ -10,25 +10,18 @@ const {
 
 const replicaConnections = JSON.parse(INDEXER_DB_REPLICAS);
 const indexerConnection = replicaConnections[(new Date()).valueOf() % replicaConnections.length];
-let pool = new Pool({ connectionString: indexerConnection, maxUses: 1000 });
+const pool = new Pool({ connectionString: indexerConnection, maxUses: 1000 });
 
 pool.on('error', (err) => {
     console.error('Postgres pool error: ', err);
-    pool.end()
-        .then(() => {
-            pool = new Pool({ connectionString: indexerConnection, maxUses: 1000 });
-        })
-        .catch(() => {
-            console.error('failed to drain PG connection pool');
-        });
 });
 
 const poolMatch = NEAR_WALLET_ENV.startsWith('mainnet')
     ? JSON.stringify(['%.poolv1.near', '%.pool.near']).replace(/"/g, '\'')
     : JSON.stringify(['%.pool.%.m0', '%.factory01.littlefarm.testnet', '%.factory.colorpalette.testnet']).replace(/"/g, '\'');
 
 const findLastBlockByTimestamp = async () => {
-    const { rows: [lastBlock] } = await pool.query('select block_timestamp FROM blocks ORDER BY block_timestamp DESC LIMIT 1');
+    const { rows: [ lastBlock ] } = await pool.query('select block_timestamp FROM blocks ORDER BY block_timestamp DESC LIMIT 1');
     return lastBlock;
 };
 
@@ -134,7 +127,7 @@ const findReceivers = async (ctx) => {
 };
 
 const likelyTokensFromBlock = async ({ fromBlockTimestamp, accountId }) => {
-    const { block_timestamp: lastBlockTimestamp } = await findLastBlockByTimestamp();
+    const  { block_timestamp: lastBlockTimestamp } = await findLastBlockByTimestamp();
 
     const received = `
         select distinct receipt_receiver_account_id as receiver_account_id
@@ -175,7 +168,7 @@ const likelyTokensFromBlock = async ({ fromBlockTimestamp, accountId }) => {
 };
 
 const likelyNFTsFromBlock = async ({ fromBlockTimestamp, accountId }) => {
-    const { block_timestamp: lastBlockTimestamp } = await findLastBlockByTimestamp();
+    const  { block_timestamp: lastBlockTimestamp } = await findLastBlockByTimestamp();
 
     const ownershipChangeFunctionCalls = `
         select distinct receipt_receiver_account_id as receiver_account_id
@@ -215,7 +208,7 @@ const findLikelyTokensFromBlock = async (ctx) => {
         fromBlockTimestamp,
         accountId
     });
-
+    
     ctx.body = {
         version: '1.0.0',
         lastBlockTimestamp,