Merge pull request #14 from vulcanize/iterator_support_1.9.10

utilize eth key preimage table

database.go

@@ -154,15 +154,23 @@ func (d *Database) NewBatch() ethdb.Batch {
 	return b
 }
 
-// NewIterator satisfies the ethdb.Iteratee interface
+// NewIterator creates a binary-alphabetical iterator over the entire keyspace
-// it creates a binary-alphabetical iterator over a subset
+// contained within the key-value database.
-// of database content with a particular key prefix, starting at a particular
+func (d *Database) NewIterator() ethdb.Iterator {
-// initial key (or after, if it does not exist).
+	return NewIterator([]byte{}, []byte{}, d.blockService)
-//
+}
-// Note: This method assumes that the prefix is NOT part of the start, so there's
+
-// no need for the caller to prepend the prefix to the start
+// NewIteratorWithStart creates a binary-alphabetical iterator over a subset of
-func (d *Database) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
+// database content starting at a particular initial key (or after, if it does
-	return NewIterator(start, prefix, d.blockService)
+// not exist).
+func (d *Database) NewIteratorWithStart(start []byte) ethdb.Iterator {
+	return NewIterator(start, []byte{}, d.blockService)
+}
+
+// NewIteratorWithPrefix creates a binary-alphabetical iterator over a subset
+// of database content with a particular key prefix.
+func (d *Database) NewIteratorWithPrefix(prefix []byte) ethdb.Iterator {
+	return NewIterator([]byte{}, prefix, d.blockService)
 }
 
 // Close satisfies the io.Closer interface

go.mod

@@ -3,7 +3,7 @@ module github.com/vulcanize/ipfs-ethdb
 go 1.13
 
 require (
-	github.com/ethereum/go-ethereum v1.9.15
+	github.com/ethereum/go-ethereum v1.9.10
 	github.com/hashicorp/golang-lru v0.5.4
 	github.com/ipfs/go-block-format v0.0.2
 	github.com/ipfs/go-blockservice v0.1.3
@@ -16,4 +16,5 @@ require (
 	github.com/multiformats/go-multihash v0.0.13
 	github.com/onsi/ginkgo v1.8.0
 	github.com/onsi/gomega v1.5.0
+	github.com/sirupsen/logrus v1.6.0
 )

go.sum

@@ -15,7 +15,10 @@ github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbt
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
+github.com/VictoriaMetrics/fastcache v1.5.3 h1:2odJnXLbFZcoV9KYtQ+7TH1UOq3dn3AssMgieaezkR4=
+github.com/VictoriaMetrics/fastcache v1.5.3/go.mod h1:+jv9Ckb+za/P1ZRg/sulP5Ni1v49daAVERr0H3CuscE=
 github.com/VictoriaMetrics/fastcache v1.5.7 h1:4y6y0G8PRzszQUYIQHHssv/jgPHAb5qQuuDNdCbyAgw=
 github.com/VictoriaMetrics/fastcache v1.5.7/go.mod h1:ptDBkNMQI4RtmVo8VS/XwRY6RoTu1dAWCbrk+6WsEM8=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
@@ -41,6 +44,7 @@ github.com/btcsuite/winsvc v1.0.0/go.mod h1:jsenWakMcC0zFBFurPLEAyrnc/teJEM1O46f
 github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
+github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18/go.mod h1:HD5P3vAIAh+Y2GAxg0PrPN1P8WkepXGpjbUPDHJqqKM=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cloudflare/cloudflare-go v0.10.2-0.20190916151808-a80f83b9add9/go.mod h1:1MxXX1Ux4x6mqPmjkUgTP1CdXIBXKX7T+Jk9Gxrmx+U=
@@ -57,9 +61,16 @@ github.com/dgryski/go-farm v0.0.0-20190104051053-3adb47b1fb0f/go.mod h1:SqUrOPUn
 github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/dlclark/regexp2 v1.2.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
 github.com/docker/docker v1.4.2-0.20180625184442-8e610b2b55bf/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/dop251/goja v0.0.0-20200106141417-aaec0e7bde29/go.mod h1:Mw6PkjjMXWbTj+nnj4s3QPXq1jaT0s5pC0iFD4+BOAA=
 github.com/dop251/goja v0.0.0-20200219165308-d1232e640a87/go.mod h1:Mw6PkjjMXWbTj+nnj4s3QPXq1jaT0s5pC0iFD4+BOAA=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/edsrzf/mmap-go v0.0.0-20160512033002-935e0e8a636c/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
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+github.com/elastic/gosigar v0.8.1-0.20180330100440-37f05ff46ffa/go.mod h1:cdorVVzy1fhmEqmtgqkoE3bYtCfSCkVyjTyCIo22xvs=
+github.com/ethereum/go-ethereum v1.9.10 h1:jooX7tWcscpC7ytufk73t9JMCeJQ7aJF2YmZJQEuvFo=
+github.com/ethereum/go-ethereum v1.9.10/go.mod h1:lXHkVo/MTvsEXfYsmNzelZ8R1e0DTvdk/wMZJIRpaRw=
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@@ -92,11 +103,13 @@ github.com/gorilla/websocket v1.4.1-0.20190629185528-ae1634f6a989/go.mod h1:E7qH
 github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
 github.com/gxed/hashland/keccakpg v0.0.1/go.mod h1:kRzw3HkwxFU1mpmPP8v1WyQzwdGfmKFJ6tItnhQ67kU=
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+github.com/hashicorp/golang-lru v0.0.0-20160813221303-0a025b7e63ad/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
 github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
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+github.com/huin/goupnp v0.0.0-20161224104101-679507af18f3/go.mod h1:MZ2ZmwcBpvOoJ22IJsc7va19ZwoheaBk43rKg12SKag=
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@@ -167,6 +180,7 @@ github.com/karalabe/usb v0.0.0-20190919080040-51dc0efba356/go.mod h1:Od972xHfMJo
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
+github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/koron/go-ssdp v0.0.0-20180514024734-4a0ed625a78b/go.mod h1:5Ky9EC2xfoUKUor0Hjgi2BJhCSXJfMOFlmyYrVKGQMk=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@@ -291,15 +305,19 @@ github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7q
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
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 github.com/rs/cors v0.0.0-20160617231935-a62a804a8a00/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
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 github.com/shirou/gopsutil v2.20.5-0.20200531151128-663af789c085+incompatible h1:+gAR1bMhuoQnZMTWFIvp7ukynULPsteLzG+siZKLtD8=
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 github.com/spacemonkeygo/openssl v0.0.0-20181017203307-c2dcc5cca94a/go.mod h1:7AyxJNCJ7SBZ1MfVQCWD6Uqo2oubI2Eq2y2eqf+A5r0=
 github.com/spacemonkeygo/spacelog v0.0.0-20180420211403-2296661a0572/go.mod h1:w0SWMsp6j9O/dk4/ZpIhL+3CkG8ofA2vuv7k+ltqUMc=
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+github.com/spaolacci/murmur3 v1.0.1-0.20190317074736-539464a789e9/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
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@@ -330,6 +348,7 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8 h1:1wopBVtVdWnn03fZelqdXTqk7U7zPQCb+T4rbU9ZEoU=
 golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200311171314-f7b00557c8c4 h1:QmwruyY+bKbDDL0BaglrbZABEali68eoMFhTZpCjYVA=
 golang.org/x/crypto v0.0.0-20200311171314-f7b00557c8c4/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -338,6 +357,8 @@ golang.org/x/net v0.0.0-20181011144130-49bb7cea24b1/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190227160552-c95aed5357e7/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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+golang.org/x/net v0.0.0-20190628185345-da137c7871d7 h1:rTIdg5QFRR7XCaK4LCjBiPbx8j4DQRpdYMnGn/bJUEU=
+golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 h1:Jcxah/M+oLZ/R4/z5RzfPzGbPXnVDPkEDtf2JnuxN+U=
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@@ -349,7 +370,10 @@ golang.org/x/sys v0.0.0-20190219092855-153ac476189d/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -367,7 +391,9 @@ gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8
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+gopkg.in/olebedev/go-duktape.v3 v3.0.0-20190213234257-ec84240a7772/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
 gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200603215123-a4a8cb9d2cbc/go.mod h1:uAJfkITjFhyEEuUfm7bsmCZRbW5WRq8s9EY8HZ6hCns=
+gopkg.in/sourcemap.v1 v1.0.5/go.mod h1:2RlvNNSMglmRrcvhfuzp4hQHwOtjxlbjX7UPY/GXb78=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/urfave/cli.v1 v1.20.0/go.mod h1:vuBzUtMdQeixQj8LVd+/98pzhxNGQoyuPBlsXHOQNO0=

postgres/batch.go

@@ -51,6 +51,9 @@ func (b *Batch) Put(key []byte, value []byte) (err error) {
 	if _, err = b.tx.Exec(putPgStr, mhKey, value); err != nil {
 		return err
 	}
+	if _, err = b.tx.Exec(putPreimagePgStr, key, mhKey); err != nil {
+		return err
+	}
 	b.valueSize += len(value)
 	return nil
 }
@@ -58,11 +61,7 @@ func (b *Batch) Put(key []byte, value []byte) (err error) {
 // Delete satisfies the ethdb.Batch interface
 // Delete removes the key from the key-value data store
 func (b *Batch) Delete(key []byte) (err error) {
-	mhKey, err := MultihashKeyFromKeccak256(key)
+	_, err = b.tx.Exec(deletePgStr, key)
-	if err != nil {
-		return err
-	}
-	_, err = b.tx.Exec(deletePgStr, mhKey)
 	return err
 }
 

postgres/database.go

@@ -21,6 +21,8 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/sirupsen/logrus"
+
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/jmoiron/sqlx"
 )
@@ -28,11 +30,12 @@ import (
 var errNotSupported = errors.New("this operation is not supported")
 
 var (
-	hasPgStr    = "SELECT exists(select 1 from public.blocks WHERE key = $1)"
+	hasPgStr         = "SELECT exists(select 1 from eth.key_preimages WHERE eth_key = $1)"
-	getPgStr    = "SELECT data FROM public.blocks WHERE key = $1"
+	getPgStr         = "SELECT data FROM public.blocks INNER JOIN eth.key_preimages ON (ipfs_key = blocks.key) WHERE eth_key = $1"
-	putPgStr    = "INSERT INTO public.blocks (key, data) VALUES ($1, $2) ON CONFLICT (key) DO NOTHING"
+	putPgStr         = "INSERT INTO public.blocks (key, data) VALUES ($1, $2) ON CONFLICT (key) DO NOTHING"
-	deletePgStr = "DELETE FROM public.blocks WHERE key = $1"
+	putPreimagePgStr = "INSERT INTO eth.key_preimages (eth_key, ipfs_key) VALUES ($1, $2) ON CONFLICT (eth_key) DO NOTHING"
-	dbSizePgStr = "SELECT pg_database_size(current_database())"
+	deletePgStr      = "DELETE FROM public.blocks USING eth.key_preimages WHERE ipfs_key = blocks.key AND eth_key = $1"
+	dbSizePgStr      = "SELECT pg_database_size(current_database())"
 )
 
 // Database is the type that satisfies the ethdb.Database and ethdb.KeyValueStore interfaces for PG-IPFS Ethereum data using a direct Postgres connection
@@ -56,46 +59,54 @@ func NewDatabase(db *sqlx.DB) ethdb.Database {
 
 // Has satisfies the ethdb.KeyValueReader interface
 // Has retrieves if a key is present in the key-value data store
+// Has uses the eth.key_preimages table
 func (d *Database) Has(key []byte) (bool, error) {
-	mhKey, err := MultihashKeyFromKeccak256(key)
-	if err != nil {
-		return false, err
-	}
 	var exists bool
-	return exists, d.db.Get(&exists, hasPgStr, mhKey)
+	return exists, d.db.Get(&exists, hasPgStr, key)
 }
 
 // Get satisfies the ethdb.KeyValueReader interface
 // Get retrieves the given key if it's present in the key-value data store
+// Get uses the eth.key_preimages table
 func (d *Database) Get(key []byte) ([]byte, error) {
-	mhKey, err := MultihashKeyFromKeccak256(key)
-	if err != nil {
-		return nil, err
-	}
 	var data []byte
-	return data, d.db.Get(&data, getPgStr, mhKey)
+	return data, d.db.Get(&data, getPgStr, key)
 }
 
 // Put satisfies the ethdb.KeyValueWriter interface
 // Put inserts the given value into the key-value data store
 // Key is expected to be the keccak256 hash of value
+// Put inserts the keccak256 key into the eth.key_preimages table
 func (d *Database) Put(key []byte, value []byte) error {
 	mhKey, err := MultihashKeyFromKeccak256(key)
 	if err != nil {
 		return err
 	}
-	_, err = d.db.Exec(putPgStr, mhKey, value)
+	tx, err := d.db.Beginx()
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if err := tx.Rollback(); err != nil {
+				logrus.Error(err)
+			}
+		} else {
+			err = tx.Commit()
+		}
+	}()
+	if _, err = tx.Exec(putPgStr, mhKey, value); err != nil {
+		return err
+	}
+	_, err = tx.Exec(putPreimagePgStr, key, mhKey)
 	return err
 }
 
 // Delete satisfies the ethdb.KeyValueWriter interface
 // Delete removes the key from the key-value data store
+// Delete uses the eth.key_preimages table
 func (d *Database) Delete(key []byte) error {
-	mhKey, err := MultihashKeyFromKeccak256(key)
+	_, err := d.db.Exec(deletePgStr, key)
-	if err != nil {
-		return err
-	}
-	_, err = d.db.Exec(deletePgStr, mhKey)
 	return err
 }
 
@@ -186,15 +197,23 @@ func (d *Database) NewBatch() ethdb.Batch {
 	return NewBatch(d.db, nil)
 }
 
-// NewIterator satisfies the ethdb.Iteratee interface
+// NewIterator creates a binary-alphabetical iterator over the entire keyspace
-// it creates a binary-alphabetical iterator over a subset
+// contained within the key-value database.
-// of database content with a particular key prefix, starting at a particular
+func (d *Database) NewIterator() ethdb.Iterator {
-// initial key (or after, if it does not exist).
+	return NewIterator([]byte{}, []byte{}, d.db)
-//
+}
-// Note: This method assumes that the prefix is NOT part of the start, so there's
+
-// no need for the caller to prepend the prefix to the start
+// NewIteratorWithStart creates a binary-alphabetical iterator over a subset of
-func (d *Database) NewIterator(prefix []byte, start []byte) ethdb.Iterator {
+// database content starting at a particular initial key (or after, if it does
-	return NewIterator(start, prefix, d.db)
+// not exist).
+func (d *Database) NewIteratorWithStart(start []byte) ethdb.Iterator {
+	return NewIterator(start, []byte{}, d.db)
+}
+
+// NewIteratorWithPrefix creates a binary-alphabetical iterator over a subset
+// of database content with a particular key prefix.
+func (d *Database) NewIteratorWithPrefix(prefix []byte) ethdb.Iterator {
+	return NewIterator([]byte{}, prefix, d.db)
 }
 
 // Close satisfies the io.Closer interface

postgres/database_test.go

@@ -59,6 +59,8 @@ var _ = Describe("Database", func() {
 		It("returns true if a key-pair exists in the db", func() {
 			_, err = db.Exec("INSERT into public.blocks (key, data) VALUES ($1, $2)", testMhKey, testValue)
 			Expect(err).ToNot(HaveOccurred())
+			_, err = db.Exec("INSERT into eth.key_preimages (eth_key, ipfs_key) VALUES ($1, $2)", testEthKey, testMhKey)
+			Expect(err).ToNot(HaveOccurred())
 			has, err := database.Has(testEthKey)
 			Expect(err).ToNot(HaveOccurred())
 			Expect(has).To(BeTrue())
@@ -74,6 +76,8 @@ var _ = Describe("Database", func() {
 		It("returns the value associated with the key, if the pair exists", func() {
 			_, err = db.Exec("INSERT into public.blocks (key, data) VALUES ($1, $2)", testMhKey, testValue)
 			Expect(err).ToNot(HaveOccurred())
+			_, err = db.Exec("INSERT into eth.key_preimages (eth_key, ipfs_key) VALUES ($1, $2)", testEthKey, testMhKey)
+			Expect(err).ToNot(HaveOccurred())
 			val, err := database.Get(testEthKey)
 			Expect(err).ToNot(HaveOccurred())
 			Expect(val).To(Equal(testValue))

postgres/db/migrations/00001_create_ipfs_blocks_table.sql

@@ -0,0 +1,8 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS public.blocks (
+  key TEXT UNIQUE NOT NULL,
+  data BYTEA NOT NULL
+);
+
+-- +goose Down
+DROP TABLE public.blocks;

postgres/db/migrations/00002_create_eth_schema.sql

@@ -0,0 +1,5 @@
+-- +goose Up
+CREATE SCHEMA eth;
+
+-- +goose Down
+DROP SCHEMA eth;

postgres/db/migrations/00003_create_eth_key_preimages_table.sql

@@ -0,0 +1,8 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS eth.key_preimages (
+  eth_key BYTEA UNIQUE NOT NULL,
+  ipfs_key TEXT NOT NULL REFERENCES public.blocks (key) ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED
+);
+
+-- +goose Down
+DROP TABLE eth.key_preimages;

postgres/util.go

@@ -44,6 +44,6 @@ func TestDB() (*sqlx.DB, error) {
 
 // ResetTestDB drops all rows in the test db public.blocks table
 func ResetTestDB(db *sqlx.DB) error {
-	_, err := db.Exec("TRUNCATE public.blocks")
+	_, err := db.Exec("TRUNCATE public.blocks CASCADE")
 	return err
 }