begin sql statements

sql.go

@@ -0,0 +1,17 @@
+package ipld_eth_statedb
+
+const (
+	GetBalancePgStr = `SELECT balance FROM eth.state_cids
+						INNER JOIN eth.header_cids ON (
+							state_cids.header_id = header_cids.block_hash
+							AND state_cids.block_number = header_cids.block_number
+						)
+						WHERE state_leaf_key = $1
+						AND header_cids.block_number <= (SELECT block_number
+															FROM eth.header_cids
+															WHERE block_hash = $2)
+						AND header_cids.block_hash = (SELECT canonical_header_hash(header_cids.block_number))
+						ORDER BY header_cids.block_number DESC
+						LIMIT 1`
+	GetContractCodePgStr = `SELECT data FROM public.blocks WHERE key = $1`
+)