SQLite 3.51.1.

Lock tweaks.
Remove MinLevel.
2026-01-19 09:04:16 +00:00 · 2025-11-30 10:24:34 +00:00 · 2025-11-29 16:12:29 +00:00 · 2025-11-27 17:29:47 +00:00 · 2025-11-27 16:28:16 +00:00 · 2025-11-26 14:07:44 +00:00
50 changed files with 1320 additions and 354 deletions
--- a/.github/workflows/build-test.sh
+++ b/.github/workflows/build-test.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail

-echo 'set -eu' > test.sh
+echo 'set -eux' > test.sh

 for p in $(go list ./...); do
  dir=".${p#github.com/ncruces/go-sqlite3}"
--- a/.github/workflows/libc.yml
+++ b/.github/workflows/libc.yml
@@ -14,7 +14,7 @@ jobs:
    runs-on: ${{ matrix.os }}

    steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with: { go-version: stable }

--- a/.github/workflows/repro.yml
+++ b/.github/workflows/repro.yml
@@ -17,7 +17,7 @@ jobs:

    steps:
    - uses: ilammy/msvc-dev-cmd@v1
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6

    - name: Build
      shell: bash
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -30,7 +30,7 @@ jobs:
      contents: write

    steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with: { go-version: stable }

@@ -51,17 +51,17 @@ jobs:
      run: go vet ./...

    - name: Build
-      run: go build -v ./...
+      run: go build ./...

    - name: Test
-      run: go test -v ./... -bench . -benchtime=1x
+      run: go test ./... -bench . -benchtime=1x

    - name: Test BSD locks
-      run: go test -v -tags sqlite3_flock ./...
+      run: go test -tags sqlite3_flock ./...
      if: matrix.os != 'windows-latest'

    - name: Test dot locks
-      run: go test -v -tags sqlite3_dotlk ./...
+      run: go test -tags sqlite3_dotlk ./...
      if: matrix.os != 'windows-latest'

    - name: Test modules
@@ -69,12 +69,12 @@ jobs:
      run: |
        go work init .
        go work use -r embed gormlite
-        go test -v ./embed/bcw2/...
+        go test ./embed/bcw2/...

    - name: Test GORM
      shell: bash
      run: gormlite/test.sh
-      if: matrix.os != 'windows-latest'
+      if: matrix.os == 'ubuntu-latest'

    - name: Collect coverage
      run: |
@@ -99,32 +99,30 @@ jobs:
        os:
          - name: freebsd
            version: '14.3'
-            flags: '-test.v'
          - name: netbsd
            version: '10.1'
-            flags: '-test.v'
          - name: freebsd
            arch: arm64
            version: '14.3'
-            flags: '-test.v -test.short'
+            tflags: '-test.short'
          - name: netbsd
            arch: arm64
            version: '10.1'
-            flags: '-test.v -test.short'
+            tflags: '-test.short'
          - name: openbsd
            version: '7.8'
-            flags: '-test.v -test.short'
+            tflags: '-test.short'
    runs-on: ubuntu-latest
    needs: test

    steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6

    - name: Build
      env:
        GOOS: ${{ matrix.os.name }}
        GOARCH: ${{ matrix.os.arch }}
-        TESTFLAGS: ${{ matrix.os.flags }}
+        TESTFLAGS: ${{ matrix.os.tflags }}
      run: .github/workflows/build-test.sh

    - name: Test
@@ -143,19 +141,16 @@ jobs:
        os:
          - name: dragonfly
            action: 'vmactions/dragonflybsd-vm@v1'
-            tflags: '-test.v'
          - name: illumos
            action: 'vmactions/omnios-vm@v1'
-            tflags: '-test.v'
          - name: solaris
            action: 'vmactions/solaris-vm@v1'
            bflags: '-tags sqlite3_dotlk'
-            tflags: '-test.v'
    runs-on: ubuntu-latest
    needs: test

    steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6

    - name: Build
      env:
@@ -174,7 +169,7 @@ jobs:

    steps:
    - uses: bytecodealliance/actions/wasmtime/setup@v1
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with: { go-version: stable }

@@ -187,7 +182,7 @@ jobs:
        GOARCH: wasm
        GOWASIRUNTIME: wasmtime
        GOWASIRUNTIMEARGS: '--env CI=true'
-      run: go test -v -short -tags sqlite3_dotlk -skip Example ./...
+      run: go test -short -tags sqlite3_dotlk -skip Example ./...

  test-qemu:
    runs-on: ubuntu-latest
@@ -195,42 +190,60 @@ jobs:

    steps:
    - uses: docker/setup-qemu-action@v3
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with: { go-version: stable }

    - name: Test 386 (32-bit)
-      run: GOARCH=386 go test -v -short ./...
+      run: GOARCH=386 go test -short ./...

    - name: Test riscv64 (interpreter)
-      run: GOARCH=riscv64 go test -v -short ./...
+      run: GOARCH=riscv64 go test -short ./...

    - name: Test ppc64le (interpreter)
-      run: GOARCH=ppc64le go test -v -short ./...
+      run: GOARCH=ppc64le go test -short ./...
+
+    - name: Test loong64 (interpreter)
+      run: GOARCH=loong64 go test -short ./...

    - name: Test s390x (big-endian)
-      run: GOARCH=s390x go test -v -short -tags sqlite3_dotlk ./...
+      run: GOARCH=s390x go test -short -tags sqlite3_dotlk ./...

  test-linuxarm:
    runs-on: ubuntu-24.04-arm
    needs: test

    steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with: { go-version: stable }

    - name: Test
-      run: go test -v ./...
+      run: go test ./...
+
+    - name: Test arm (32-bit)
+      run: GOARCH=arm GOARM=7 go test -short ./...

  test-macintel:
    runs-on: macos-15-intel
    needs: test

    steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with: { go-version: stable }

    - name: Test
-      run: go test -v ./...
+      run: go test ./...
+
+  test-winarm:
+    runs-on: windows-11-arm
+    needs: test
+
+    steps:
+    - uses: actions/checkout@v6
+    - uses: actions/setup-go@v6
+      with: { go-version: stable }
+
+    - name: Test
+      run: go test ./...
--- a/README.md
+++ b/README.md
@@ -84,14 +84,14 @@ It also benefits greatly from [SQLite's](https://sqlite.org/testing.html) and
 thorough testing.

 Every commit is tested on:
-* Linux: amd64, arm64, 386, riscv64, ppc64le, s390x
+* Linux: amd64, arm64, 386, arm, riscv64, ppc64le, loong64, s390x
 * macOS: amd64, arm64
-* Windows: amd64
+* Windows: amd64, arm64
 * BSD:
  * FreeBSD: amd64, arm64
-  * OpenBSD: amd64
  * NetBSD: amd64, arm64
  * DragonFly BSD: amd64
+  * OpenBSD: amd64
 * illumos: amd64
 * Solaris: amd64

--- a/driver/driver.go
+++ b/driver/driver.go
@@ -263,10 +263,8 @@ func (n *connector) Connect(ctx context.Context) (ret driver.Conn, err error) {
 			return nil, err
 		}
 		defer s.Close()
-		if s.Step() && s.ColumnBool(0) {
-			c.readOnly = '1'
-		} else {
-			c.readOnly = '0'
+		if s.Step() {
+			c.readOnly = s.ColumnBool(0)
 		}
 		err = s.Close()
 		if err != nil {
@@ -322,7 +320,7 @@ type conn struct {
 	txReset  string
 	tmRead   sqlite3.TimeFormat
 	tmWrite  sqlite3.TimeFormat
-	readOnly byte
+	readOnly bool
 }

 var (
@@ -358,9 +356,9 @@ func (c *conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, e

 	c.txReset = ``
 	txBegin := `BEGIN ` + txLock
-	if opts.ReadOnly {
+	if opts.ReadOnly && !c.readOnly {
 		txBegin += ` ; PRAGMA query_only=on`
-		c.txReset = `; PRAGMA query_only=` + string(c.readOnly)
+		c.txReset = `; PRAGMA query_only=off`
 	}

 	if old := c.Conn.SetInterrupt(ctx); old != ctx {
--- a/embed/README.md
+++ b/embed/README.md
@@ -1,6 +1,6 @@
 # Embeddable Wasm build of SQLite

-This folder includes an embeddable Wasm build of SQLite 3.50.4 for use with
+This folder includes an embeddable Wasm build of SQLite 3.51.1 for use with
 [`github.com/ncruces/go-sqlite3`](https://pkg.go.dev/github.com/ncruces/go-sqlite3).

 The following optional features are compiled in:
--- a/embed/bcw2/bcw2.wasm
+++ b/embed/bcw2/bcw2.wasm
--- a/embed/bcw2/bcw2_test.go
+++ b/embed/bcw2/bcw2_test.go
@@ -53,7 +53,7 @@ func Test_bcw2(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if version != "3.51.0" {
+	if version != "3.52.0" {
 		t.Error(version)
 	}
 }
--- a/embed/bcw2/build.sh
+++ b/embed/bcw2/build.sh
@@ -15,9 +15,9 @@ cp "$ROOT"/sqlite3/*.[ch] build/
 cp "$ROOT"/sqlite3/*.patch build/
 cd sqlite/

-# https://sqlite.org/src/info/0e862bc9ed7aa9ae
-curl -#L https://github.com/sqlite/sqlite/archive/0b99392.tar.gz | tar xz --strip-components=1
-# curl -#L https://sqlite.org/src/tarball/sqlite.tar.gz?r=0e862bc9ed | tar xz --strip-components=1
+# https://sqlite.org/src/info/f273f6b8245c5dca
+curl -#L https://github.com/sqlite/sqlite/archive/7c126d7.tar.gz | tar xz --strip-components=1
+# curl -#L https://sqlite.org/src/tarball/sqlite.tar.gz?r=f273f6b824 | tar xz --strip-components=1

 if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
 	MSYS_NO_PATHCONV=1 nmake /f makefile.msc sqlite3.c "OPTS=-DSQLITE_ENABLE_UPDATE_DELETE_LIMIT -DSQLITE_ENABLE_ORDERED_SET_AGGREGATES"
@@ -58,6 +58,8 @@ cd ~-
 	-Wl,--initial-memory=327680 \
 	-D_HAVE_SQLITE_CONFIG_H \
 	-DSQLITE_ENABLE_UPDATE_DELETE_LIMIT \
+	-DSQLITE_ENABLE_ORDERED_SET_AGGREGATES \
+	-DSQLITE_EXPERIMENTAL_PRAGMA_20251114 \
 	-DSQLITE_CUSTOM_INCLUDE=sqlite_opt.h \
 	$(awk '{print "-Wl,--export="$0}' ../exports.txt)

--- a/embed/bcw2/go.mod
+++ b/embed/bcw2/go.mod
@@ -2,11 +2,11 @@ module github.com/ncruces/go-sqlite3/embed/bcw2

 go 1.24.0

-require github.com/ncruces/go-sqlite3 v0.30.0
+require github.com/ncruces/go-sqlite3 v0.30.2

 require (
 	github.com/ncruces/julianday v1.0.0 // indirect
 	github.com/ncruces/sort v0.1.6 // indirect
-	github.com/tetratelabs/wazero v1.10.0 // indirect
+	github.com/tetratelabs/wazero v1.10.1 // indirect
 	golang.org/x/sys v0.38.0 // indirect
 )
--- a/embed/bcw2/go.sum
+++ b/embed/bcw2/go.sum
@@ -1,12 +1,12 @@
-github.com/ncruces/go-sqlite3 v0.30.0 h1:EcoP5wtm8lRfRGQmOI782t/matUvzpqI3om9rTDngQ8=
-github.com/ncruces/go-sqlite3 v0.30.0/go.mod h1:6mcRKUuA9qvAo7PcQU+wwcT2j/qGimg1qXO/pmj8Ryk=
+github.com/ncruces/go-sqlite3 v0.30.2 h1:1GVbHAkKAOwjJd3JYl8ldrYROudfZUOah7oXPD7VZbQ=
+github.com/ncruces/go-sqlite3 v0.30.2/go.mod h1:AxKu9sRxkludimFocbktlY6LiYSkxiI5gTA8r+os/Nw=
 github.com/ncruces/julianday v1.0.0 h1:fH0OKwa7NWvniGQtxdJRxAgkBMolni2BjDHaWTxqt7M=
 github.com/ncruces/julianday v1.0.0/go.mod h1:Dusn2KvZrrovOMJuOt0TNXL6tB7U2E8kvza5fFc9G7g=
 github.com/ncruces/sort v0.1.6 h1:TrsJfGRH1AoWoaeB4/+gCohot9+cA6u/INaH5agIhNk=
 github.com/ncruces/sort v0.1.6/go.mod h1:obJToO4rYr6VWP0Uw5FYymgYGt3Br4RXcs/JdKaXAPk=
-github.com/tetratelabs/wazero v1.10.0 h1:CXP3zneLDl6J4Zy8N/J+d5JsWKfrjE6GtvVK1fpnDlk=
-github.com/tetratelabs/wazero v1.10.0/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
+github.com/tetratelabs/wazero v1.10.1 h1:2DugeJf6VVk58KTPszlNfeeN8AhhpwcZqkJj2wwFuH8=
+github.com/tetratelabs/wazero v1.10.1/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
 golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
 golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
-golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
+golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
+golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
--- a/embed/build.sh
+++ b/embed/build.sh
@@ -23,6 +23,7 @@ trap 'rm -f sqlite3.tmp' EXIT
 	-Wl,--import-undefined \
 	-Wl,--initial-memory=327680 \
 	-D_HAVE_SQLITE_CONFIG_H \
+	-DSQLITE_EXPERIMENTAL_PRAGMA_20251114 \
 	-DSQLITE_CUSTOM_INCLUDE=sqlite_opt.h \
 	$(awk '{print "-Wl,--export="$0}' exports.txt)

--- a/embed/init_test.go
+++ b/embed/init_test.go
@@ -19,7 +19,7 @@ func Test_init(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if version != "3.51.0" {
+	if version != "3.51.1" {
 		t.Error(version)
 	}
 }
--- a/embed/sqlite3.wasm
+++ b/embed/sqlite3.wasm
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/ncruces/julianday v1.0.0
 	github.com/ncruces/sort v0.1.6
 	github.com/ncruces/wbt v0.2.0
-	github.com/tetratelabs/wazero v1.10.0
+	github.com/tetratelabs/wazero v1.10.1
 	golang.org/x/sys v0.38.0
 )

@@ -14,9 +14,9 @@ require (
 	github.com/dchest/siphash v1.2.3 // ext/bloom
 	github.com/google/uuid v1.6.0 // ext/uuid
 	github.com/psanford/httpreadat v0.1.0 // example
-	golang.org/x/crypto v0.43.0 // vfs/adiantum vfs/xts
-	golang.org/x/sync v0.17.0 // test
-	golang.org/x/text v0.30.0 // ext/unicode
+	golang.org/x/crypto v0.45.0 // vfs/adiantum vfs/xts
+	golang.org/x/sync v0.18.0 // test
+	golang.org/x/text v0.31.0 // ext/unicode
 	lukechampine.com/adiantum v1.1.1 // vfs/adiantum
 )

--- a/go.sum
+++ b/go.sum
@@ -10,15 +10,15 @@ github.com/ncruces/wbt v0.2.0 h1:Q9zlKOBSZc7Yy/R2cGa35g6RKUUE3BjNIW3tfGC4F04=
 github.com/ncruces/wbt v0.2.0/go.mod h1:DtF92amvMxH69EmBFUSFWRDAlo6hOEfoNQnClxj9C/c=
 github.com/psanford/httpreadat v0.1.0 h1:VleW1HS2zO7/4c7c7zNl33fO6oYACSagjJIyMIwZLUE=
 github.com/psanford/httpreadat v0.1.0/go.mod h1:Zg7P+TlBm3bYbyHTKv/EdtSJZn3qwbPwpfZ/I9GKCRE=
-github.com/tetratelabs/wazero v1.10.0 h1:CXP3zneLDl6J4Zy8N/J+d5JsWKfrjE6GtvVK1fpnDlk=
-github.com/tetratelabs/wazero v1.10.0/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
-golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
-golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
-golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
-golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+github.com/tetratelabs/wazero v1.10.1 h1:2DugeJf6VVk58KTPszlNfeeN8AhhpwcZqkJj2wwFuH8=
+github.com/tetratelabs/wazero v1.10.1/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
+golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
+golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
+golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
 golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
-golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
+golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
+golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
 lukechampine.com/adiantum v1.1.1 h1:4fp6gTxWCqpEbLy40ExiYDDED3oUNWx5cTqBCtPdZqA=
 lukechampine.com/adiantum v1.1.1/go.mod h1:LrAYVnTYLnUtE/yMp5bQr0HstAf060YUF8nM0B6+rUw=
--- a/gormlite/go.mod
+++ b/gormlite/go.mod
@@ -3,7 +3,7 @@ module github.com/ncruces/go-sqlite3/gormlite
 go 1.24.0

 require (
-	github.com/ncruces/go-sqlite3 v0.30.0
+	github.com/ncruces/go-sqlite3 v0.30.2
 	gorm.io/gorm v1.31.1
 )

@@ -11,7 +11,7 @@ require (
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/ncruces/julianday v1.0.0 // indirect
-	github.com/tetratelabs/wazero v1.10.0 // indirect
+	github.com/tetratelabs/wazero v1.10.1 // indirect
 	golang.org/x/sys v0.38.0 // indirect
-	golang.org/x/text v0.30.0 // indirect
+	golang.org/x/text v0.31.0 // indirect
 )
--- a/gormlite/go.sum
+++ b/gormlite/go.sum
@@ -2,15 +2,15 @@ github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
-github.com/ncruces/go-sqlite3 v0.30.0 h1:EcoP5wtm8lRfRGQmOI782t/matUvzpqI3om9rTDngQ8=
-github.com/ncruces/go-sqlite3 v0.30.0/go.mod h1:6mcRKUuA9qvAo7PcQU+wwcT2j/qGimg1qXO/pmj8Ryk=
+github.com/ncruces/go-sqlite3 v0.30.2 h1:1GVbHAkKAOwjJd3JYl8ldrYROudfZUOah7oXPD7VZbQ=
+github.com/ncruces/go-sqlite3 v0.30.2/go.mod h1:AxKu9sRxkludimFocbktlY6LiYSkxiI5gTA8r+os/Nw=
 github.com/ncruces/julianday v1.0.0 h1:fH0OKwa7NWvniGQtxdJRxAgkBMolni2BjDHaWTxqt7M=
 github.com/ncruces/julianday v1.0.0/go.mod h1:Dusn2KvZrrovOMJuOt0TNXL6tB7U2E8kvza5fFc9G7g=
-github.com/tetratelabs/wazero v1.10.0 h1:CXP3zneLDl6J4Zy8N/J+d5JsWKfrjE6GtvVK1fpnDlk=
-github.com/tetratelabs/wazero v1.10.0/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
+github.com/tetratelabs/wazero v1.10.1 h1:2DugeJf6VVk58KTPszlNfeeN8AhhpwcZqkJj2wwFuH8=
+github.com/tetratelabs/wazero v1.10.1/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
 golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
 golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
-golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
+golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
+golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
 gorm.io/gorm v1.31.1 h1:7CA8FTFz/gRfgqgpeKIBcervUn3xSyPUmr6B2WXJ7kg=
 gorm.io/gorm v1.31.1/go.mod h1:XyQVbO2k6YkOis7C2437jSit3SsDK72s7n7rsSHd+Gs=
--- a/internal/alloc/alloc_unix.go
+++ b/internal/alloc/alloc_unix.go
@@ -5,8 +5,9 @@ package alloc
 import (
 	"math"

-	"github.com/tetratelabs/wazero/experimental"
 	"golang.org/x/sys/unix"
+
+	"github.com/tetratelabs/wazero/experimental"
 )

 func NewMemory(cap, max uint64) experimental.LinearMemory {
--- a/internal/alloc/alloc_windows.go
+++ b/internal/alloc/alloc_windows.go
@@ -5,8 +5,9 @@ import (
 	"reflect"
 	"unsafe"

-	"github.com/tetratelabs/wazero/experimental"
 	"golang.org/x/sys/windows"
+
+	"github.com/tetratelabs/wazero/experimental"
 )

 func NewMemory(cap, max uint64) experimental.LinearMemory {
--- a/internal/util/mmap_unix.go
+++ b/internal/util/mmap_unix.go
@@ -7,8 +7,9 @@ import (
 	"os"
 	"unsafe"

-	"github.com/tetratelabs/wazero/api"
 	"golang.org/x/sys/unix"
+
+	"github.com/tetratelabs/wazero/api"
 )

 type mmapState struct {
--- a/litestream/README.md
+++ b/litestream/README.md
@@ -0,0 +1,26 @@
+# Litestream in-process replication and lightweight read-replicas
+
+This package adds **EXPERIMENTAL** support for in-process [Litestream](https://litestream.io/).
+
+## Lightweight read-replicas
+
+The `"litestream"` SQLite VFS implements Litestream
+[lightweight read-replicas](https://fly.io/blog/litestream-revamped/#lightweight-read-replicas).
+
+See the [example](example_test.go) for how to use.
+
+To improve performance, increase `PollInterval` as much as you can,
+and set [`PRAGMA cache_size=N`](https://www.sqlite.org/pragma.html#pragma_cache_size)
+(or use `_pragma=cache_size(N)`).
+
+## In-process replication
+
+For disaster recovery, it is probably best if you run Litestream as a separate background process,
+as recommended by the [tutorial](https://litestream.io/getting-started/).
+
+However, running Litestream as a background process requires
+compatible locking and cross-process shared memory WAL
+(see our [support matrix](https://github.com/ncruces/go-sqlite3/wiki/Support-matrix)).
+
+If your OS lacks locking or shared memory support,
+you can use `NewPrimary` with the `sqlite3_dotlk` build tag to setup in-process replication.
--- a/litestream/api.go
+++ b/litestream/api.go
@@ -0,0 +1,101 @@
+// Package litestream implements a Litestream lightweight read-replica VFS.
+package litestream
+
+import (
+	"context"
+	"log/slog"
+	"sync"
+	"time"
+
+	"github.com/benbjohnson/litestream"
+
+	"github.com/ncruces/go-sqlite3/vfs"
+)
+
+const (
+	// The default poll interval.
+	DefaultPollInterval = 1 * time.Second
+
+	// The default cache size: 10 MiB.
+	DefaultCacheSize = 10 * 1024 * 1024
+)
+
+func init() {
+	vfs.Register("litestream", liteVFS{})
+}
+
+var (
+	liteMtx sync.RWMutex
+	// +checklocks:liteMtx
+	liteDBs = map[string]*liteDB{}
+)
+
+// ReplicaOptions represents options for [NewReplica].
+type ReplicaOptions struct {
+	// Where to log error messages. May be nil.
+	Logger *slog.Logger
+
+	// Replica poll interval.
+	// Should be less than the compaction interval
+	// used by the replica at MinLevel+1.
+	PollInterval time.Duration
+
+	// CacheSize is the maximum size of the page cache in bytes.
+	// Zero means DefaultCacheSize, negative disables caching.
+	CacheSize int
+}
+
+// NewReplica creates a read-replica from a Litestream client.
+func NewReplica(name string, client ReplicaClient, options ReplicaOptions) {
+	if options.Logger != nil {
+		options.Logger = options.Logger.With("name", name)
+	} else {
+		options.Logger = slog.New(slog.DiscardHandler)
+	}
+	if options.PollInterval <= 0 {
+		options.PollInterval = DefaultPollInterval
+	}
+	if options.CacheSize == 0 {
+		options.CacheSize = DefaultCacheSize
+	}
+
+	liteMtx.Lock()
+	defer liteMtx.Unlock()
+	liteDBs[name] = &liteDB{
+		client: client,
+		opts:   options,
+		cache:  pageCache{size: options.CacheSize},
+	}
+}
+
+// RemoveReplica removes a replica by name.
+func RemoveReplica(name string) {
+	liteMtx.Lock()
+	defer liteMtx.Unlock()
+	delete(liteDBs, name)
+}
+
+// NewPrimary creates a new primary that replicates through client.
+// If restore is not nil, the database is first restored.
+func NewPrimary(ctx context.Context, path string, client ReplicaClient, restore *RestoreOptions) (*litestream.DB, error) {
+	lsdb := litestream.NewDB(path)
+	lsdb.Replica = litestream.NewReplicaWithClient(lsdb, client)
+
+	if restore != nil {
+		err := lsdb.Replica.Restore(ctx, *restore)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	err := lsdb.Open()
+	if err != nil {
+		return nil, err
+	}
+	return lsdb, nil
+}
+
+type (
+	ReplicaClient  = litestream.ReplicaClient
+	RestoreOptions = litestream.RestoreOptions
+)
--- a/litestream/api_test.go
+++ b/litestream/api_test.go
@@ -0,0 +1,104 @@
+package litestream
+
+import (
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/benbjohnson/litestream"
+	"github.com/benbjohnson/litestream/file"
+	"github.com/ncruces/go-sqlite3/driver"
+	_ "github.com/ncruces/go-sqlite3/embed"
+)
+
+func Test_integration(t *testing.T) {
+	dir := t.TempDir()
+	dbpath := filepath.Join(dir, "test.db")
+	backup := filepath.Join(dir, "backup", "test.db")
+
+	db, err := driver.Open(dbpath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer db.Close()
+
+	client := file.NewReplicaClient(backup)
+	NewReplica("test.db", client, ReplicaOptions{})
+
+	if err := setupPrimary(t, dbpath, client); err != nil {
+		t.Fatal(err)
+	}
+
+	replica, err := driver.Open("file:test.db?vfs=litestream")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer replica.Close()
+
+	_, err = db.ExecContext(t.Context(), `CREATE TABLE users (id INT, name VARCHAR(10))`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = db.ExecContext(t.Context(),
+		`INSERT INTO users (id, name) VALUES (0, 'go'), (1, 'zig'), (2, 'whatever')`)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	time.Sleep(DefaultPollInterval + litestream.DefaultMonitorInterval)
+
+	rows, err := replica.QueryContext(t.Context(), `SELECT id, name FROM users`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer rows.Close()
+
+	row := 0
+	ids := []int{0, 1, 2}
+	names := []string{"go", "zig", "whatever"}
+	for ; rows.Next(); row++ {
+		var id int
+		var name string
+		err := rows.Scan(&id, &name)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if id != ids[row] {
+			t.Errorf("got %d, want %d", id, ids[row])
+		}
+		if name != names[row] {
+			t.Errorf("got %q, want %q", name, names[row])
+		}
+	}
+	if row != 3 {
+		t.Errorf("got %d, want %d", row, len(ids))
+	}
+
+	var lag int
+	err = replica.QueryRowContext(t.Context(), `PRAGMA litestream_lag`).Scan(&lag)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if lag < 0 || lag > 2 {
+		t.Errorf("got %d", lag)
+	}
+
+	var txid string
+	err = replica.QueryRowContext(t.Context(), `PRAGMA litestream_txid`).Scan(&txid)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if txid != "0000000000000001" {
+		t.Errorf("got %q", txid)
+	}
+}
+
+func setupPrimary(tb testing.TB, path string, client ReplicaClient) error {
+	db, err := NewPrimary(tb.Context(), path, client, nil)
+	if err == nil {
+		tb.Cleanup(func() { db.Close(tb.Context()) })
+	}
+	return err
+}
--- a/litestream/cache.go
+++ b/litestream/cache.go
@@ -0,0 +1,72 @@
+package litestream
+
+import (
+	"encoding/binary"
+	"sync"
+
+	"golang.org/x/sync/singleflight"
+
+	"github.com/superfly/ltx"
+)
+
+type pageCache struct {
+	single singleflight.Group
+	pages  map[uint32]cachedPage // +checklocks:mtx
+	size   int
+	mtx    sync.Mutex
+}
+
+type cachedPage struct {
+	data []byte
+	txid ltx.TXID
+}
+
+func (c *pageCache) getOrFetch(pgno uint32, maxTXID ltx.TXID, fetch func() (any, error)) ([]byte, error) {
+	if c.size >= 0 {
+		c.mtx.Lock()
+		if c.pages == nil {
+			c.pages = map[uint32]cachedPage{}
+		}
+		page := c.pages[pgno]
+		c.mtx.Unlock()
+
+		if page.txid == maxTXID {
+			return page.data, nil
+		}
+	}
+
+	var key [12]byte
+	binary.LittleEndian.PutUint32(key[0:], pgno)
+	binary.LittleEndian.PutUint64(key[4:], uint64(maxTXID))
+	v, err, _ := c.single.Do(string(key[:]), fetch)
+
+	if err != nil {
+		return nil, err
+	}
+
+	page := cachedPage{v.([]byte), maxTXID}
+	if c.size >= 0 {
+		c.mtx.Lock()
+		c.evict(len(page.data))
+		c.pages[pgno] = page
+		c.mtx.Unlock()
+	}
+	return page.data, nil
+}
+
+// +checklocks:c.mtx
+func (c *pageCache) evict(pageSize int) {
+	// Evict random keys until we're under the maximum size.
+	// SQLite has its own page cache, which it will use for each connection.
+	// Since this is a second layer of shared cache,
+	// random eviction is probably good enough.
+	if pageSize*len(c.pages) < c.size {
+		return
+	}
+	for key := range c.pages {
+		delete(c.pages, key)
+		if pageSize*len(c.pages) < c.size {
+			return
+		}
+	}
+}
--- a/litestream/example_test.go
+++ b/litestream/example_test.go
@@ -0,0 +1,48 @@
+package litestream_test
+
+import (
+	"log"
+	"time"
+
+	"github.com/benbjohnson/litestream/s3"
+
+	"github.com/ncruces/go-sqlite3/driver"
+	_ "github.com/ncruces/go-sqlite3/embed"
+	"github.com/ncruces/go-sqlite3/litestream"
+)
+
+func ExampleNewReplica() {
+	client := s3.NewReplicaClient()
+	client.Bucket = "test-bucket"
+	client.Path = "fruits.db"
+
+	litestream.NewReplica("fruits.db", client, litestream.ReplicaOptions{
+		PollInterval: 5 * time.Second,
+	})
+
+	db, err := driver.Open("file:fruits.db?vfs=litestream")
+	if err != nil {
+		log.Fatalln(err)
+	}
+	defer db.Close()
+
+	for {
+		time.Sleep(time.Second)
+		rows, err := db.Query("SELECT * FROM fruits")
+		if err != nil {
+			log.Fatalln(err)
+		}
+
+		for rows.Next() {
+			var name, color string
+			err := rows.Scan(&name, &color)
+			if err != nil {
+				log.Fatalln(err)
+			}
+			log.Println(name, color)
+		}
+
+		log.Println("===")
+		rows.Close()
+	}
+}
--- a/litestream/go.mod
+++ b/litestream/go.mod
@@ -0,0 +1,64 @@
+module github.com/ncruces/go-sqlite3/litestream
+
+go 1.24.4
+
+require (
+	github.com/benbjohnson/litestream v0.5.3-0.20251109214555-48dc960260f0
+	github.com/ncruces/go-sqlite3 v0.30.2
+	github.com/ncruces/wbt v0.2.0
+	github.com/superfly/ltx v0.5.0
+	golang.org/x/sync v0.18.0
+)
+
+// github.com/ncruces/go-sqlite3
+require (
+	github.com/ncruces/julianday v1.0.0 // indirect
+	github.com/tetratelabs/wazero v1.10.1 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+)
+
+// github.com/superfly/ltx
+require github.com/pierrec/lz4/v4 v4.1.22 // indirect
+
+// github.com/benbjohnson/litestream
+require (
+	filippo.io/age v1.2.1 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/prometheus/client_golang v1.23.2 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.67.4 // indirect
+	github.com/prometheus/procfs v0.19.2 // indirect
+	github.com/psanford/sqlite3vfs v0.0.0-20251127171934-4e34e03a991a // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	golang.org/x/crypto v0.45.0 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
+	modernc.org/sqlite v1.40.1 // indirect
+)
+
+// github.com/benbjohnson/litestream/s3
+require (
+	github.com/aws/aws-sdk-go-v2 v1.37.1 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.0 // indirect
+	github.com/aws/aws-sdk-go-v2/config v1.30.2 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.18.2 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.1 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.18.2 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.1 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.1 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.0 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.8.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.19.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.85.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.26.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.31.1 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.35.1 // indirect
+	github.com/aws/smithy-go v1.22.5 // indirect
+)
+
+replace modernc.org/sqlite => github.com/ncruces/go-sqlite3/litestream/modernc v0.30.1
--- a/litestream/go.sum
+++ b/litestream/go.sum
@@ -0,0 +1,199 @@
+c2sp.org/CCTV/age v0.0.0-20240306222714-3ec4d716e805 h1:u2qwJeEvnypw+OCPUHmoZE3IqwfuN5kgDfo5MLzpNM0=
+c2sp.org/CCTV/age v0.0.0-20240306222714-3ec4d716e805/go.mod h1:FomMrUJ2Lxt5jCLmZkG3FHa72zUprnhd3v/Z18Snm4w=
+cloud.google.com/go v0.111.0 h1:YHLKNupSD1KqjDbQ3+LVdQ81h/UJbJyZG203cEfnQgM=
+cloud.google.com/go v0.111.0/go.mod h1:0mibmpKP1TyOOFYQY5izo0LnT+ecvOQ0Sg3OdmMiNRU=
+cloud.google.com/go/compute v1.23.3 h1:6sVlXXBmbd7jNX0Ipq0trII3e4n1/MsADLK6a+aiVlk=
+cloud.google.com/go/compute v1.23.3/go.mod h1:VCgBUoMnIVIR0CscqQiPJLAG25E3ZRZMzcFZeQ+h8CI=
+cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
+cloud.google.com/go/iam v1.1.5 h1:1jTsCu4bcsNsE4iiqNT5SHwrDRCfRmIaaaVFhRveTJI=
+cloud.google.com/go/iam v1.1.5/go.mod h1:rB6P/Ic3mykPbFio+vo7403drjlgvoWfYpJhMXEbzv8=
+cloud.google.com/go/storage v1.36.0 h1:P0mOkAcaJxhCTvAkMhxMfrTKiNcub4YmmPBtlhAyTr8=
+cloud.google.com/go/storage v1.36.0/go.mod h1:M6M/3V/D3KpzMTJyPOR/HU6n2Si5QdaXYEsng2xgOs8=
+filippo.io/age v1.2.1 h1:X0TZjehAZylOIj4DubWYU1vWQxv9bJpo+Uu2/LGhi1o=
+filippo.io/age v1.2.1/go.mod h1:JL9ew2lTN+Pyft4RiNGguFfOpewKwSHm5ayKD/A4004=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.18.2 h1:Hr5FTipp7SL07o2FvoVOX9HRiRH3CR3Mj8pxqCcdD5A=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.18.2/go.mod h1:QyVsSSN64v5TGltphKLQ2sQxe4OBQg0J1eKRcVBnfgE=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.11.0 h1:MhRfI58HblXzCtWEZCO0feHs8LweePB3s90r7WaR1KU=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.11.0/go.mod h1:okZ+ZURbArNdlJ+ptXoyHNuOETzOl1Oww19rm8I2WLA=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.2 h1:9iefClla7iYpfYWdzPCRDozdmndjTm8DXdpCzPajMgA=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.11.2/go.mod h1:XtLgD3ZD34DAaVIIAyG3objl5DynM3CQ/vMcbBNJZGI=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.6.2 h1:FwladfywkNirM+FZYLBR2kBz5C8Tg0fw5w5Y7meRXWI=
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+go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.46.1 h1:SpGay3w+nEwMpfVnbqOLH5gY52/foP8RE8UzTZ1pdSE=
+go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.46.1/go.mod h1:4UoMYEZOC0yN/sPGH76KPkkU7zgiEWYWL9vwmbnTJPE=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1 h1:aFJWCqJMNjENlcleuuOkGAPH82y0yULBScfXcIEdS24=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.46.1/go.mod h1:sEGXWArGqc3tVa+ekntsN65DmVbVeW+7lTKTjZF3/Fo=
+go.opentelemetry.io/otel v1.21.0 h1:hzLeKBZEL7Okw2mGzZ0cc4k/A7Fta0uoPgaJCr8fsFc=
+go.opentelemetry.io/otel v1.21.0/go.mod h1:QZzNPQPm1zLX4gZK4cMi+71eaorMSGT3A4znnUvNNEo=
+go.opentelemetry.io/otel/metric v1.21.0 h1:tlYWfeo+Bocx5kLEloTjbcDwBuELRrIFxwdQ36PlJu4=
+go.opentelemetry.io/otel/metric v1.21.0/go.mod h1:o1p3CA8nNHW8j5yuQLdc1eeqEaPfzug24uvsyIEJRWM=
+go.opentelemetry.io/otel/trace v1.21.0 h1:WD9i5gzvoUPuXIXH24ZNBudiarZDKuekPqi/E8fpfLc=
+go.opentelemetry.io/otel/trace v1.21.0/go.mod h1:LGbsEB0f9LGjN+OZaQQ26sohbOmiMR+BaslueVtS/qQ=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
+go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
+go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
+golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
+golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
+golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
+golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
+golang.org/x/oauth2 v0.32.0 h1:jsCblLleRMDrxMN29H3z/k1KliIvpLgCkE6R8FXXNgY=
+golang.org/x/oauth2 v0.32.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
+golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
+golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
+golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
+golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
+golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
+golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/api v0.154.0 h1:X7QkVKZBskztmpPKWQXgjJRPA2dJYrL6r+sYPRLj050=
+google.golang.org/api v0.154.0/go.mod h1:qhSMkM85hgqiokIYsrRyKxrjfBeIhgl4Z2JmeRkYylc=
+google.golang.org/genproto v0.0.0-20231212172506-995d672761c0 h1:YJ5pD9rF8o9Qtta0Cmy9rdBwkSjrTCT6XTiUQVOtIos=
+google.golang.org/genproto v0.0.0-20231212172506-995d672761c0/go.mod h1:l/k7rMz0vFTBPy+tFSGvXEd3z+BcoG1k7EHbqm+YBsY=
+google.golang.org/genproto/googleapis/api v0.0.0-20231212172506-995d672761c0 h1:s1w3X6gQxwrLEpxnLd/qXTVLgQE2yXwaOaoa6IlY/+o=
+google.golang.org/genproto/googleapis/api v0.0.0-20231212172506-995d672761c0/go.mod h1:CAny0tYF+0/9rmDB9fahA9YLzX3+AEVl1qXbv5hhj6c=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20231212172506-995d672761c0 h1:/jFB8jK5R3Sq3i/lmeZO0cATSzFfZaJq1J2Euan3XKU=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20231212172506-995d672761c0/go.mod h1:FUoWkonphQm3RhTS+kOEhF8h0iDpm4tdXolVCeZ9KKA=
+google.golang.org/grpc v1.60.1 h1:26+wFr+cNqSGFcOXcabYC0lUVJVRa2Sb2ortSK7VrEU=
+google.golang.org/grpc v1.60.1/go.mod h1:OlCHIeLYqSSsLi6i49B5QGdzaMZK9+M7LXN2FKz4eGM=
+google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
+google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/litestream/modernc/go.mod
+++ b/litestream/modernc/go.mod
@@ -2,10 +2,10 @@ module modernc.org/sqlite

 go 1.24.0

-require github.com/ncruces/go-sqlite3 v0.30.0
+require github.com/ncruces/go-sqlite3 v0.30.2

 require (
 	github.com/ncruces/julianday v1.0.0 // indirect
-	github.com/tetratelabs/wazero v1.10.0 // indirect
+	github.com/tetratelabs/wazero v1.10.1 // indirect
 	golang.org/x/sys v0.38.0 // indirect
 )
--- a/litestream/modernc/go.sum
+++ b/litestream/modernc/go.sum
@@ -1,10 +1,10 @@
-github.com/ncruces/go-sqlite3 v0.30.0 h1:EcoP5wtm8lRfRGQmOI782t/matUvzpqI3om9rTDngQ8=
-github.com/ncruces/go-sqlite3 v0.30.0/go.mod h1:6mcRKUuA9qvAo7PcQU+wwcT2j/qGimg1qXO/pmj8Ryk=
+github.com/ncruces/go-sqlite3 v0.30.2 h1:1GVbHAkKAOwjJd3JYl8ldrYROudfZUOah7oXPD7VZbQ=
+github.com/ncruces/go-sqlite3 v0.30.2/go.mod h1:AxKu9sRxkludimFocbktlY6LiYSkxiI5gTA8r+os/Nw=
 github.com/ncruces/julianday v1.0.0 h1:fH0OKwa7NWvniGQtxdJRxAgkBMolni2BjDHaWTxqt7M=
 github.com/ncruces/julianday v1.0.0/go.mod h1:Dusn2KvZrrovOMJuOt0TNXL6tB7U2E8kvza5fFc9G7g=
-github.com/tetratelabs/wazero v1.10.0 h1:CXP3zneLDl6J4Zy8N/J+d5JsWKfrjE6GtvVK1fpnDlk=
-github.com/tetratelabs/wazero v1.10.0/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
+github.com/tetratelabs/wazero v1.10.1 h1:2DugeJf6VVk58KTPszlNfeeN8AhhpwcZqkJj2wwFuH8=
+github.com/tetratelabs/wazero v1.10.1/go.mod h1:DRm5twOQ5Gr1AoEdSi0CLjDQF1J9ZAuyqFIjl1KKfQU=
 golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
 golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
-golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
+golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
+golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
--- a/litestream/vfs.go
+++ b/litestream/vfs.go
@@ -0,0 +1,322 @@
+package litestream
+
+import (
+	"context"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"strconv"
+	"sync"
+	"time"
+
+	"github.com/benbjohnson/litestream"
+	"github.com/superfly/ltx"
+
+	"github.com/ncruces/go-sqlite3"
+	"github.com/ncruces/go-sqlite3/util/vfsutil"
+	"github.com/ncruces/go-sqlite3/vfs"
+	"github.com/ncruces/wbt"
+)
+
+type liteVFS struct{}
+
+func (liteVFS) Open(name string, flags vfs.OpenFlag) (vfs.File, vfs.OpenFlag, error) {
+	// Temp journals, as used by the sorter, use SliceFile.
+	if flags&vfs.OPEN_TEMP_JOURNAL != 0 {
+		return &vfsutil.SliceFile{}, flags | vfs.OPEN_MEMORY, nil
+	}
+	// Refuse to open all other file types.
+	if flags&vfs.OPEN_MAIN_DB == 0 {
+		return nil, flags, sqlite3.CANTOPEN
+	}
+
+	liteMtx.RLock()
+	defer liteMtx.RUnlock()
+	if db, ok := liteDBs[name]; ok {
+		// Build the page index so we can lookup individual pages.
+		if err := db.buildIndex(context.Background()); err != nil {
+			db.opts.Logger.Error("build index", "error", err)
+			return nil, 0, err
+		}
+		return &liteFile{db: db}, flags | vfs.OPEN_READONLY, nil
+	}
+	return nil, flags, sqlite3.CANTOPEN
+}
+
+func (liteVFS) Delete(name string, dirSync bool) error {
+	// notest // used to delete journals
+	return sqlite3.IOERR_DELETE_NOENT
+}
+
+func (liteVFS) Access(name string, flag vfs.AccessFlag) (bool, error) {
+	// notest // used to check for journals
+	return false, nil
+}
+
+func (liteVFS) FullPathname(name string) (string, error) {
+	return name, nil
+}
+
+type liteFile struct {
+	db       *liteDB
+	conn     *sqlite3.Conn
+	pages    *pageIndex
+	txid     ltx.TXID
+	pageSize uint32
+}
+
+func (f *liteFile) Close() error { return nil }
+
+func (f *liteFile) ReadAt(p []byte, off int64) (n int, err error) {
+	ctx := f.context()
+	pages, txid := f.pages, f.txid
+	if pages == nil {
+		pages, txid, err = f.db.pollReplica(ctx)
+	}
+	if err != nil {
+		return 0, err
+	}
+
+	pgno := uint32(1)
+	if off >= 512 {
+		pgno += uint32(off / int64(f.pageSize))
+	}
+
+	elem, ok := pages.Get(pgno)
+	if !ok {
+		return 0, io.EOF
+	}
+
+	data, err := f.db.cache.getOrFetch(pgno, elem.MaxTXID, func() (any, error) {
+		_, data, err := litestream.FetchPage(ctx, f.db.client, elem.Level, elem.MinTXID, elem.MaxTXID, elem.Offset, elem.Size)
+		return data, err
+	})
+	if err != nil {
+		f.db.opts.Logger.Error("fetch page", "error", err)
+		return 0, err
+	}
+
+	// Update the first page to pretend we are in journal mode,
+	// load the page size and track changes to the database.
+	if pgno == 1 && len(data) >= 100 &&
+		data[18] >= 1 && data[19] >= 1 &&
+		data[18] <= 3 && data[19] <= 3 {
+		data[18], data[19] = 0x01, 0x01
+		binary.BigEndian.PutUint32(data[24:28], uint32(txid))
+		f.pageSize = uint32(256 * binary.LittleEndian.Uint16(data[16:18]))
+	}
+
+	n = copy(p, data[off%int64(len(data)):])
+	return n, nil
+}
+
+func (f *liteFile) WriteAt(b []byte, off int64) (n int, err error) {
+	// notest // OPEN_READONLY
+	return 0, sqlite3.IOERR_WRITE
+}
+
+func (f *liteFile) Truncate(size int64) error {
+	// notest // OPEN_READONLY
+	return sqlite3.IOERR_TRUNCATE
+}
+
+func (f *liteFile) Sync(flag vfs.SyncFlag) error {
+	// notest // OPEN_READONLY
+	return sqlite3.IOERR_FSYNC
+}
+
+func (f *liteFile) Size() (size int64, err error) {
+	if max := f.pages.Max(); max != nil {
+		size = int64(max.Key()) * int64(f.pageSize)
+	}
+	return
+}
+
+func (f *liteFile) Lock(lock vfs.LockLevel) (err error) {
+	if lock >= vfs.LOCK_RESERVED {
+		return sqlite3.IOERR_LOCK
+	}
+	f.pages, f.txid, err = f.db.pollReplica(f.context())
+	return err
+}
+
+func (f *liteFile) Unlock(lock vfs.LockLevel) error {
+	f.pages, f.txid = nil, 0
+	return nil
+}
+
+func (f *liteFile) CheckReservedLock() (bool, error) {
+	// notest // used to check for hot journals
+	return false, nil
+}
+
+func (f *liteFile) SectorSize() int {
+	// notest // safe default
+	return 0
+}
+
+func (f *liteFile) DeviceCharacteristics() vfs.DeviceCharacteristic {
+	// notest // safe default
+	return 0
+}
+
+func (f *liteFile) Pragma(name, value string) (string, error) {
+	switch name {
+	case "litestream_txid":
+		txid := f.txid
+		if txid == 0 {
+			// Outside transaction.
+			f.db.mtx.Lock()
+			txid = f.db.txids[0]
+			f.db.mtx.Unlock()
+		}
+		return txid.String(), nil
+
+	case "litestream_lag":
+		f.db.mtx.Lock()
+		lastPoll := f.db.lastPoll
+		f.db.mtx.Unlock()
+
+		if lastPoll.IsZero() {
+			// Never polled successfully.
+			return "-1", nil
+		}
+		lag := time.Since(lastPoll) / time.Second
+		return strconv.FormatInt(int64(lag), 10), nil
+	}
+
+	return "", sqlite3.NOTFOUND
+}
+
+func (f *liteFile) SetDB(conn any) {
+	f.conn = conn.(*sqlite3.Conn)
+}
+
+func (f *liteFile) context() context.Context {
+	if f.conn != nil {
+		return f.conn.GetInterrupt()
+	}
+	return context.Background()
+}
+
+type liteDB struct {
+	client   litestream.ReplicaClient
+	opts     ReplicaOptions
+	cache    pageCache
+	pages    *pageIndex // +checklocks:mtx
+	lastPoll time.Time  // +checklocks:mtx
+	txids    levelTXIDs // +checklocks:mtx
+	mtx      sync.Mutex
+}
+
+func (f *liteDB) buildIndex(ctx context.Context) error {
+	f.mtx.Lock()
+	defer f.mtx.Unlock()
+
+	// Skip if we already have an index.
+	if f.pages != nil {
+		return nil
+	}
+
+	// Build the index from scratch from a Litestream restore plan.
+	infos, err := litestream.CalcRestorePlan(ctx, f.client, 0, time.Time{}, f.opts.Logger)
+	if err != nil {
+		if !errors.Is(err, litestream.ErrTxNotAvailable) {
+			return fmt.Errorf("calc restore plan: %w", err)
+		}
+		return nil
+	}
+
+	for _, info := range infos {
+		err := f.updateInfo(ctx, info)
+		if err != nil {
+			return err
+		}
+	}
+
+	f.lastPoll = time.Now()
+	return nil
+}
+
+func (f *liteDB) pollReplica(ctx context.Context) (*pageIndex, ltx.TXID, error) {
+	f.mtx.Lock()
+	defer f.mtx.Unlock()
+
+	// Limit polling interval.
+	if time.Since(f.lastPoll) < f.opts.PollInterval {
+		return f.pages, f.txids[0], nil
+	}
+
+	for level := range []int{0, 1, litestream.SnapshotLevel} {
+		if err := f.updateLevel(ctx, level); err != nil {
+			f.opts.Logger.Error("cannot poll replica", "error", err)
+			return nil, 0, err
+		}
+	}
+
+	f.lastPoll = time.Now()
+	return f.pages, f.txids[0], nil
+}
+
+// +checklocks:f.mtx
+func (f *liteDB) updateLevel(ctx context.Context, level int) error {
+	var nextTXID ltx.TXID
+	// Snapshots must start from scratch,
+	// other levels can start from where they were left.
+	if level != litestream.SnapshotLevel {
+		nextTXID = f.txids[level] + 1
+	}
+
+	// Start reading from the next LTX file after the current position.
+	itr, err := f.client.LTXFiles(ctx, level, nextTXID, false)
+	if err != nil {
+		return fmt.Errorf("ltx files: %w", err)
+	}
+	defer itr.Close()
+
+	// Build an update across all new LTX files.
+	for itr.Next() {
+		info := itr.Item()
+
+		// Skip LTX files already fully loaded into the index.
+		if info.MaxTXID <= f.txids[level] {
+			continue
+		}
+
+		err := f.updateInfo(ctx, info)
+		if err != nil {
+			return err
+		}
+	}
+	if err := itr.Err(); err != nil {
+		return err
+	}
+	return itr.Close()
+}
+
+// +checklocks:f.mtx
+func (f *liteDB) updateInfo(ctx context.Context, info *ltx.FileInfo) error {
+	idx, err := litestream.FetchPageIndex(ctx, f.client, info)
+	if err != nil {
+		return fmt.Errorf("fetch page index: %w", err)
+	}
+
+	// Replace pages in the index with new pages.
+	for k, v := range idx {
+		// Patch avoids mutating the index for an unmodified page.
+		f.pages = f.pages.Patch(k, func(node *pageIndex) (ltx.PageIndexElem, bool) {
+			return v, node == nil || v != node.Value()
+		})
+	}
+
+	// Track the MaxTXID for each level.
+	maxTXID := &f.txids[info.Level]
+	*maxTXID = max(*maxTXID, info.MaxTXID)
+	f.txids[0] = max(f.txids[0], *maxTXID)
+	return nil
+}
+
+// Type aliases; these are a mouthful.
+type pageIndex = wbt.Tree[uint32, ltx.PageIndexElem]
+type levelTXIDs = [litestream.SnapshotLevel + 1]ltx.TXID
--- a/sqlite3/download.sh
+++ b/sqlite3/download.sh
@@ -3,11 +3,11 @@ set -euo pipefail

 cd -P -- "$(dirname -- "$0")"

-curl -#OL "https://sqlite.org/2025/sqlite-autoconf-3510000.tar.gz"
+curl -#OL "https://sqlite.org/2025/sqlite-autoconf-3510100.tar.gz"

 # Verify download.
 if hash=$(openssl dgst -sha3-256 sqlite-autoconf-*.tar.gz); then
-  if ! [[ $hash =~ fa52f9cc74dbca004aa650ae698036a3350611f672649e165078f4eae21d6a2e ]]; then
+  if ! [[ $hash =~ 9b2b1e73f577def1d5b75c5541555a7f42e6e073ad19f7a9118478389c9bbd9b ]]; then
    echo $hash
    exit 1
  fi
@@ -23,7 +23,7 @@ mv sqlite-*/sqlite3.h .
 mv sqlite-*/sqlite3ext.h .
 rm -r sqlite-*

-GITHUB_TAG="https://github.com/sqlite/sqlite/raw/version-3.51.0"
+GITHUB_TAG="https://github.com/sqlite/sqlite/raw/version-3.51.1"

 mkdir -p ext/
 cd ext/
--- a/sqlite3/libc/libc.wasm
+++ b/sqlite3/libc/libc.wasm
--- a/sqlite3/libc/libc.wat
+++ b/sqlite3/libc/libc.wat
@@ -4,7 +4,8 @@
 (type $2 (func (param i32 i32 i32 i32)))
 (type $3 (func (param i32) (result i32)))
 (memory $0 256)
- (data $0 (i32.const 4096) "\01")
+ (data $.data (i32.const 4097) "\10\00\00\01\00\00\00\00\00\00\00\0c\10\00\00\0c\10\00\00\0c\10")
+ (data $.data.1 (i32.const 4157) "\10\00\00\00\10")
 (table $0 1 1 funcref)
 (export "memory" (memory $0))
 (export "qsort" (func $qsort))
@@ -1493,33 +1494,243 @@
  (local $2 i32)
  (local $3 i32)
  (local $4 i32)
-  (local $5 i32)
+  (local $5 v128)
  (local $6 v128)
  (local $7 v128)
  (local $8 v128)
-  (local $9 v128)
-  (block $block
-   (if
-    (local.tee $3
-     (i32.load8_u
-      (local.get $1)
+  (block $block2
+   (block $block
+    (br_if $block
+     (i32.eqz
+      (local.tee $3
+       (i32.load8_u
+        (local.get $1)
+       )
+      )
     )
    )
-    (then
-     (br_if $block
+    (br_if $block
+     (i32.eqz
      (i32.load8_u offset=1
       (local.get $1)
      )
     )
    )
+    (loop $label
+     (v128.store
+      (i32.const 4080)
+      (local.get $6)
+     )
+     (i32.store8
+      (i32.or
+       (local.tee $3
+        (i32.and
+         (local.tee $2
+          (i32.load8_u
+           (local.get $1)
+          )
+         )
+         (i32.const 15)
+        )
+       )
+       (i32.const 4080)
+      )
+      (i32.or
+       (i32.load8_u
+        (i32.or
+         (local.get $3)
+         (i32.const 4080)
+        )
+       )
+       (i32.shl
+        (i32.const 1)
+        (i32.sub
+         (local.tee $4
+          (i32.shr_u
+           (local.get $2)
+           (i32.const 4)
+          )
+         )
+         (i32.const 8)
+        )
+       )
+      )
+     )
+     (v128.store
+      (i32.const 4064)
+      (local.get $5)
+     )
+     (i32.store8
+      (local.tee $3
+       (i32.or
+        (local.get $3)
+        (i32.const 4064)
+       )
+      )
+      (i32.or
+       (i32.load8_u
+        (local.get $3)
+       )
+       (i32.shl
+        (i32.const 1)
+        (local.get $4)
+       )
+      )
+     )
+     (local.set $1
+      (i32.add
+       (local.get $1)
+       (i32.const 1)
+      )
+     )
+     (local.set $6
+      (v128.load
+       (i32.const 4080)
+      )
+     )
+     (local.set $5
+      (v128.load
+       (i32.const 4064)
+      )
+     )
+     (br_if $label
+      (local.get $2)
+     )
+    )
+    (block $block1
+     (if
+      (v128.any_true
+       (local.tee $7
+        (v128.and
+         (v128.or
+          (i8x16.swizzle
+           (local.get $6)
+           (v128.xor
+            (local.tee $8
+             (v128.and
+              (local.tee $7
+               (v128.load
+                (local.tee $2
+                 (i32.and
+                  (local.get $0)
+                  (i32.const -16)
+                 )
+                )
+               )
+              )
+              (v128.const i32x4 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f)
+             )
+            )
+            (v128.const i32x4 0x80808080 0x80808080 0x80808080 0x80808080)
+           )
+          )
+          (i8x16.swizzle
+           (local.get $5)
+           (local.get $8)
+          )
+         )
+         (i8x16.swizzle
+          (v128.const i32x4 0x08040201 0x80402010 0x08040201 0x80402010)
+          (i8x16.shr_u
+           (local.get $7)
+           (i32.const 4)
+          )
+         )
+        )
+       )
+      )
+      (then
+       (br_if $block1
+        (local.tee $1
+         (i32.and
+          (i32.xor
+           (i8x16.bitmask
+            (i8x16.eq
+             (local.get $7)
+             (v128.const i32x4 0x00000000 0x00000000 0x00000000 0x00000000)
+            )
+           )
+           (i32.const 65535)
+          )
+          (i32.shl
+           (i32.const -1)
+           (i32.and
+            (local.get $0)
+            (i32.const 15)
+           )
+          )
+         )
+        )
+       )
+      )
+     )
+     (loop $label1
+      (br_if $label1
+       (i32.eqz
+        (v128.any_true
+         (local.tee $7
+          (v128.and
+           (v128.or
+            (i8x16.swizzle
+             (local.get $6)
+             (v128.xor
+              (local.tee $8
+               (v128.and
+                (local.tee $7
+                 (v128.load
+                  (local.tee $2
+                   (i32.add
+                    (local.get $2)
+                    (i32.const 16)
+                   )
+                  )
+                 )
+                )
+                (v128.const i32x4 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f)
+               )
+              )
+              (v128.const i32x4 0x80808080 0x80808080 0x80808080 0x80808080)
+             )
+            )
+            (i8x16.swizzle
+             (local.get $5)
+             (local.get $8)
+            )
+           )
+           (i8x16.swizzle
+            (v128.const i32x4 0x08040201 0x80402010 0x08040201 0x80402010)
+            (i8x16.shr_u
+             (local.get $7)
+             (i32.const 4)
+            )
+           )
+          )
+         )
+        )
+       )
+      )
+     )
+     (local.set $1
+      (i32.xor
+       (i8x16.bitmask
+        (i8x16.eq
+         (local.get $7)
+         (v128.const i32x4 0x00000000 0x00000000 0x00000000 0x00000000)
+        )
+       )
+       (i32.const 65535)
+      )
+     )
+    )
+    (br $block2)
   )
-   (block $block1
+   (block $block3
    (if
     (v128.any_true
-      (local.tee $6
+      (local.tee $5
       (v128.or
        (i8x16.eq
-         (local.tee $7
+         (local.tee $6
          (v128.load
           (local.tee $2
            (i32.and
@@ -1532,8 +1743,8 @@
         (v128.const i32x4 0x00000000 0x00000000 0x00000000 0x00000000)
        )
        (i8x16.eq
-         (local.get $7)
-         (local.tee $7
+         (local.get $6)
+         (local.tee $6
          (i8x16.splat
           (local.get $3)
          )
@@ -1543,11 +1754,11 @@
      )
     )
     (then
-      (br_if $block1
+      (br_if $block3
       (local.tee $1
        (i32.and
         (i8x16.bitmask
-          (local.get $6)
+          (local.get $5)
         )
         (i32.shl
          (i32.const -1)
@@ -1561,14 +1772,14 @@
      )
     )
    )
-    (loop $label
-     (br_if $label
+    (loop $label2
+     (br_if $label2
      (i32.eqz
       (v128.any_true
-        (local.tee $6
+        (local.tee $5
         (v128.or
          (i8x16.eq
-           (local.tee $6
+           (local.tee $5
            (v128.load
             (local.tee $2
              (i32.add
@@ -1581,8 +1792,8 @@
           (v128.const i32x4 0x00000000 0x00000000 0x00000000 0x00000000)
          )
          (i8x16.eq
+           (local.get $5)
           (local.get $6)
-           (local.get $7)
          )
         )
        )
@@ -1592,230 +1803,10 @@
    )
    (local.set $1
     (i8x16.bitmask
-      (local.get $6)
-     )
-    )
-   )
-   (return
-    (i32.add
-     (i32.ctz
-      (local.get $1)
-     )
-     (i32.sub
-      (local.get $2)
-      (local.get $0)
-     )
-    )
-   )
-  )
-  (local.set $4
-   (i32.and
-    (local.get $0)
-    (i32.const 15)
-   )
-  )
-  (loop $label1
-   (v128.store
-    (i32.const 4080)
-    (local.get $7)
-   )
-   (i32.store8
-    (i32.or
-     (local.tee $3
-      (i32.and
-       (local.tee $2
-        (i32.load8_u
-         (local.get $1)
-        )
-       )
-       (i32.const 15)
-      )
-     )
-     (i32.const 4080)
-    )
-    (i32.or
-     (i32.load8_u
-      (i32.or
-       (local.get $3)
-       (i32.const 4080)
-      )
-     )
-     (i32.shl
-      (i32.const 1)
-      (i32.sub
-       (local.tee $5
-        (i32.shr_u
-         (local.get $2)
-         (i32.const 4)
-        )
-       )
-       (i32.const 8)
-      )
-     )
-    )
-   )
-   (v128.store
-    (i32.const 4064)
-    (local.get $6)
-   )
-   (i32.store8
-    (local.tee $3
-     (i32.or
-      (local.get $3)
-      (i32.const 4064)
-     )
-    )
-    (i32.or
-     (i32.load8_u
-      (local.get $3)
-     )
-     (i32.shl
-      (i32.const 1)
      (local.get $5)
     )
    )
   )
-   (local.set $1
-    (i32.add
-     (local.get $1)
-     (i32.const 1)
-    )
-   )
-   (local.set $7
-    (v128.load
-     (i32.const 4080)
-    )
-   )
-   (local.set $6
-    (v128.load
-     (i32.const 4064)
-    )
-   )
-   (br_if $label1
-    (local.get $2)
-   )
-  )
-  (block $block2
-   (if
-    (v128.any_true
-     (local.tee $8
-      (v128.and
-       (v128.or
-        (i8x16.swizzle
-         (local.get $7)
-         (v128.xor
-          (local.tee $9
-           (v128.and
-            (local.tee $8
-             (v128.load
-              (local.tee $2
-               (i32.and
-                (local.get $0)
-                (i32.const -16)
-               )
-              )
-             )
-            )
-            (v128.const i32x4 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f)
-           )
-          )
-          (v128.const i32x4 0x80808080 0x80808080 0x80808080 0x80808080)
-         )
-        )
-        (i8x16.swizzle
-         (local.get $6)
-         (local.get $9)
-        )
-       )
-       (i8x16.swizzle
-        (v128.const i32x4 0x08040201 0x80402010 0x08040201 0x80402010)
-        (i8x16.shr_u
-         (local.get $8)
-         (i32.const 4)
-        )
-       )
-      )
-     )
-    )
-    (then
-     (br_if $block2
-      (local.tee $1
-       (i32.and
-        (i32.xor
-         (i8x16.bitmask
-          (i8x16.eq
-           (local.get $8)
-           (v128.const i32x4 0x00000000 0x00000000 0x00000000 0x00000000)
-          )
-         )
-         (i32.const 65535)
-        )
-        (i32.shl
-         (i32.const -1)
-         (local.get $4)
-        )
-       )
-      )
-     )
-    )
-   )
-   (loop $label2
-    (br_if $label2
-     (i32.eqz
-      (v128.any_true
-       (local.tee $8
-        (v128.and
-         (v128.or
-          (i8x16.swizzle
-           (local.get $7)
-           (v128.xor
-            (local.tee $9
-             (v128.and
-              (local.tee $8
-               (v128.load
-                (local.tee $2
-                 (i32.add
-                  (local.get $2)
-                  (i32.const 16)
-                 )
-                )
-               )
-              )
-              (v128.const i32x4 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f 0x8f8f8f8f)
-             )
-            )
-            (v128.const i32x4 0x80808080 0x80808080 0x80808080 0x80808080)
-           )
-          )
-          (i8x16.swizzle
-           (local.get $6)
-           (local.get $9)
-          )
-         )
-         (i8x16.swizzle
-          (v128.const i32x4 0x08040201 0x80402010 0x08040201 0x80402010)
-          (i8x16.shr_u
-           (local.get $8)
-           (i32.const 4)
-          )
-         )
-        )
-       )
-      )
-     )
-    )
-   )
-   (local.set $1
-    (i32.xor
-     (i8x16.bitmask
-      (i8x16.eq
-       (local.get $8)
-       (v128.const i32x4 0x00000000 0x00000000 0x00000000 0x00000000)
-      )
-     )
-     (i32.const 65535)
-    )
-   )
  )
  (i32.add
   (i32.ctz
--- a/sqlite3/tools.sh
+++ b/sqlite3/tools.sh
@@ -26,8 +26,8 @@ elif [[ "$OSTYPE" == "darwin"* ]]; then
  fi
 fi

-WASI_SDK="https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-28/wasi-sdk-28.0-$WASI_SDK.tar.gz"
-BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_124/binaryen-version_124-$BINARYEN.tar.gz"
+WASI_SDK="https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-29/wasi-sdk-29.0-$WASI_SDK.tar.gz"
+BINARYEN="https://github.com/WebAssembly/binaryen/releases/download/version_125/binaryen-version_125-$BINARYEN.tar.gz"

 # Download tools
 mkdir -p "$ROOT/tools"
--- a/vfs/README.md
+++ b/vfs/README.md
@@ -117,9 +117,13 @@ The VFS can be customized with a few build tags:

 - [`github.com/ncruces/go-sqlite3/vfs/memdb`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/memdb)
  implements an in-memory VFS.
+- [`github.com/ncruces/go-sqlite3/vfs/mvcc`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/mvcc)
+  implements an in-memory MVCC VFS.
 - [`github.com/ncruces/go-sqlite3/vfs/readervfs`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/readervfs)
  implements a VFS for immutable databases.
 - [`github.com/ncruces/go-sqlite3/vfs/adiantum`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/adiantum)
  wraps a VFS to offer encryption at rest.
 - [`github.com/ncruces/go-sqlite3/vfs/xts`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/vfs/xts)
  wraps a VFS to offer encryption at rest.
+- [`github.com/ncruces/go-sqlite3/litestream`](https://pkg.go.dev/github.com/ncruces/go-sqlite3/litestream)
+  implements Litestream [lightweight read-replicas](https://fly.io/blog/litestream-revamped/#lightweight-read-replicas).
--- a/vfs/adiantum/adiantum.go
+++ b/vfs/adiantum/adiantum.go
@@ -4,6 +4,7 @@ import (
 	"crypto/rand"

 	"golang.org/x/crypto/argon2"
+
 	"lukechampine.com/adiantum"
 	"lukechampine.com/adiantum/hbsh"
 )
--- a/vfs/adiantum/example_test.go
+++ b/vfs/adiantum/example_test.go
@@ -8,6 +8,7 @@ import (
 	"os"

 	"golang.org/x/crypto/argon2"
+
 	"lukechampine.com/adiantum/hbsh"
 	"lukechampine.com/adiantum/hpolyc"

--- a/vfs/memdb/memdb.go
+++ b/vfs/memdb/memdb.go
@@ -223,7 +223,7 @@ func (m *memFile) Lock(lock vfs.LockLevel) error {
 		m.reserved = true

 	case vfs.LOCK_EXCLUSIVE:
-		if m.lock < vfs.LOCK_PENDING {
+		if m.lock == vfs.LOCK_RESERVED {
 			m.lock = vfs.LOCK_PENDING
 			m.pending = true
 		}
--- a/vfs/mvcc/mvcc.go
+++ b/vfs/mvcc/mvcc.go
@@ -90,6 +90,7 @@ type mvccFile struct {
 	data     *wbt.Tree[int64, string]
 	lock     vfs.LockLevel
 	readOnly bool
+	wrflag   bool
 }

 var (
@@ -212,6 +213,14 @@ func (m *mvccFile) Truncate(size int64) error {
 	return nil
 }

+func (m *mvccFile) Pragma(name, value string) (string, error) {
+	// notest // https://sqlite.org/forum/forumpost/c4ca8e7f4a887aa4
+	if name == "experimental_pragma_20251114" {
+		m.wrflag = true
+	}
+	return "", sqlite3.NOTFOUND
+}
+
 func (m *mvccFile) Lock(lock vfs.LockLevel) error {
 	if m.lock >= lock {
 		return nil
@@ -225,7 +234,7 @@ func (m *mvccFile) Lock(lock vfs.LockLevel) error {
 	defer m.mtx.Unlock()

 	// Take a snapshot of the database.
-	if lock == vfs.LOCK_SHARED {
+	if lock == vfs.LOCK_SHARED && !m.wrflag {
 		m.data = m.mvccDB.data
 		m.lock = lock
 		return nil
@@ -243,9 +252,8 @@ func (m *mvccFile) Lock(lock vfs.LockLevel) error {
 		}
 		defer time.AfterFunc(time.Millisecond, m.waiter.Broadcast).Stop()
 		for m.owner != nil {
-			// Our snapshot is invalid.
-			if m.data != m.mvccDB.data {
-				return sqlite3.BUSY_SNAPSHOT
+			if m.data != nil && m.data != m.mvccDB.data {
+				return sqlite3.BUSY_SNAPSHOT // Our snapshot is invalid.
 			}
 			if time.Since(before) > time.Millisecond {
 				return sqlite3.BUSY
@@ -253,9 +261,11 @@ func (m *mvccFile) Lock(lock vfs.LockLevel) error {
 			m.waiter.Wait()
 		}
 	}
-	// Our snapshot is invalid.
-	if m.data != m.mvccDB.data {
-		return sqlite3.BUSY_SNAPSHOT
+	switch {
+	case m.data == nil:
+		m.data = m.mvccDB.data
+	case m.data != m.mvccDB.data:
+		return sqlite3.BUSY_SNAPSHOT // Our snapshot is invalid.
 	}
 	// Take ownership.
 	m.lock = lock
@@ -264,6 +274,7 @@ func (m *mvccFile) Lock(lock vfs.LockLevel) error {
 }

 func (m *mvccFile) Unlock(lock vfs.LockLevel) error {
+	m.wrflag = false // SQLite calls unlock even if locking is unsuccessful.
 	if m.lock <= lock {
 		return nil
 	}
@@ -274,7 +285,9 @@ func (m *mvccFile) Unlock(lock vfs.LockLevel) error {
 	// Relase ownership, commit changes.
 	if m.owner == m {
 		m.owner = nil
-		m.mvccDB.data = m.data
+		if m.lock == vfs.LOCK_EXCLUSIVE {
+			m.mvccDB.data = m.data
+		}
 		if m.waiter != nil {
 			m.waiter.Broadcast()
 		}
--- a/vfs/shm.go
+++ b/vfs/shm.go
@@ -1,4 +1,4 @@
-//go:build ((linux || darwin || windows || freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le)) || sqlite3_flock || sqlite3_dotlk
+//go:build ((linux || darwin || windows || freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64)) || sqlite3_flock || sqlite3_dotlk

 package vfs

--- a/vfs/shm_bsd.go
+++ b/vfs/shm_bsd.go
@@ -1,4 +1,4 @@
-//go:build ((freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le) && !sqlite3_dotlk) || sqlite3_flock
+//go:build ((freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64) && !sqlite3_dotlk) || sqlite3_flock

 package vfs

@@ -11,9 +11,10 @@ import (
 	"os"
 	"sync"

-	"github.com/tetratelabs/wazero/api"
 	"golang.org/x/sys/unix"

+	"github.com/tetratelabs/wazero/api"
+
 	"github.com/ncruces/go-sqlite3/internal/util"
 )

--- a/vfs/shm_copy.go
+++ b/vfs/shm_copy.go
@@ -1,4 +1,4 @@
-//go:build (windows && (386 || arm || amd64 || arm64 || riscv64 || ppc64le)) || sqlite3_dotlk
+//go:build (windows && (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64)) || sqlite3_dotlk

 package vfs

--- a/vfs/shm_memlk.go
+++ b/vfs/shm_memlk.go
@@ -1,4 +1,4 @@
-//go:build ((freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le)) || sqlite3_flock || sqlite3_dotlk
+//go:build ((freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64)) || sqlite3_flock || sqlite3_dotlk

 package vfs

--- a/vfs/shm_ofd.go
+++ b/vfs/shm_ofd.go
@@ -1,4 +1,4 @@
-//go:build (linux || darwin) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le) && !(sqlite3_flock || sqlite3_dotlk)
+//go:build (linux || darwin) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64) && !(sqlite3_flock || sqlite3_dotlk)

 package vfs

@@ -9,9 +9,10 @@ import (
 	"sync"
 	"time"

-	"github.com/tetratelabs/wazero/api"
 	"golang.org/x/sys/unix"

+	"github.com/tetratelabs/wazero/api"
+
 	"github.com/ncruces/go-sqlite3/internal/util"
 )

--- a/vfs/shm_other.go
+++ b/vfs/shm_other.go
@@ -1,4 +1,4 @@
-//go:build !(((linux || darwin || windows || freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le)) || sqlite3_flock || sqlite3_dotlk)
+//go:build !(((linux || darwin || windows || freebsd || openbsd || netbsd || dragonfly || illumos) && (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64)) || sqlite3_flock || sqlite3_dotlk)

 package vfs

--- a/vfs/shm_windows.go
+++ b/vfs/shm_windows.go
@@ -1,4 +1,4 @@
-//go:build (386 || arm || amd64 || arm64 || riscv64 || ppc64le) && !sqlite3_dotlk
+//go:build (386 || arm || amd64 || arm64 || riscv64 || ppc64le || loong64) && !sqlite3_dotlk

 package vfs

@@ -8,9 +8,10 @@ import (
 	"os"
 	"sync"

-	"github.com/tetratelabs/wazero/api"
 	"golang.org/x/sys/windows"

+	"github.com/tetratelabs/wazero/api"
+
 	"github.com/ncruces/go-sqlite3/internal/util"
 )

--- a/vfs/tests/mptest/wasm/mptest.wasm
+++ b/vfs/tests/mptest/wasm/mptest.wasm
--- a/vfs/tests/speedtest1/wasm/speedtest1.wasm
+++ b/vfs/tests/speedtest1/wasm/speedtest1.wasm
Author	SHA1	Message	Date
Nuno Cruces	7028e3a5b9	SQLite 3.51.1.	2025-11-30 10:24:34 +00:00
Nuno Cruces	03bb20de6e	Lock tweaks.	2025-11-29 16:12:29 +00:00
Nuno Cruces	20a51a344e	Remove MinLevel.	2025-11-27 17:29:47 +00:00
Nuno Cruces	2dbcc480f7	Initial pragma support.	2025-11-27 16:28:16 +00:00
Nuno Cruces	0f0716c438	Inprocess Litestream primary.	2025-11-26 14:07:44 +00:00
Nuno Cruces	0286e50e25	Experimental file control opcode for write transaction (#339 )	2025-11-21 12:48:31 +00:00
dependabot[bot]	8ac10eb8b4	Bump actions/checkout from 5 to 6 (#338 ) Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/v5...v6) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-11-20 22:48:29 +00:00
Nuno Cruces	0ff41bb966	Deps.	2025-11-20 18:47:59 +00:00
Nuno Cruces	ba9caf0405	Shared page cache.	2025-11-20 18:30:51 +00:00
Nuno Cruces	2c167dd116	Avoid polling intermediate levels.	2025-11-19 16:22:10 +00:00
Nuno Cruces	ce0da893b4	Fix #335 .	2025-11-19 11:27:42 +00:00
Nuno Cruces	9bbbab77f6	Fix define.	2025-11-18 17:58:56 +00:00
Nuno Cruces	bab2d26652	Deps.	2025-11-11 23:03:31 +00:00
Nuno Cruces	3132b272de	Test more, log less.	2025-11-10 11:26:28 +00:00
Nuno Cruces	8f9a6ca4c1	Litestream lightweight read-replicas. (#328 )	2025-11-09 13:16:08 +00:00
Nuno Cruces	99b097de3b	Windows ARM runners.	2025-11-09 12:44:32 +00:00