From 20ca77028f13f4a43ea2d633ad6b32bdef7bd3a8 Mon Sep 17 00:00:00 2001
From: Oleg Kovalov <oleg@hey.com>
Date: Fri, 1 Jul 2022 22:41:40 +0200
Subject: [PATCH] Update pgx

---
 dbump_pgx/go.mod      |  2 +-
 dbump_pgx/go.sum      |  4 ++--
 dbump_pgx/pgx.go      | 19 +++++++++++++++----
 dbump_pgx/pgx_test.go |  2 +-
 4 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/dbump_pgx/go.mod b/dbump_pgx/go.mod
index d73defa..97a60ec 100644
--- a/dbump_pgx/go.mod
+++ b/dbump_pgx/go.mod
@@ -3,6 +3,6 @@ module github.com/cristalhq/dbump/dbump_pgx
 go 1.16
 
 require (
-	github.com/cristalhq/dbump v0.9.0
+	github.com/cristalhq/dbump v0.11.0
 	github.com/jackc/pgx/v4 v4.16.1
 )
diff --git a/dbump_pgx/go.sum b/dbump_pgx/go.sum
index 4ce2520..a0eada0 100644
--- a/dbump_pgx/go.sum
+++ b/dbump_pgx/go.sum
@@ -5,8 +5,8 @@ github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMe
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/cristalhq/dbump v0.9.0 h1:kcyQ0T3KkUMaq9PiGpyGXfVjmO7+l/P0ZM67w9XBwZc=
-github.com/cristalhq/dbump v0.9.0/go.mod h1:rAjULuStbuNPCLrJT62Eu7Sp/2gVt/4URUvsnPK1yFA=
+github.com/cristalhq/dbump v0.11.0 h1:PhPRtOh2j/HXPabmeVv27bnIz0pMR9g/4OKHDIz/oWo=
+github.com/cristalhq/dbump v0.11.0/go.mod h1:rAjULuStbuNPCLrJT62Eu7Sp/2gVt/4URUvsnPK1yFA=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
diff --git a/dbump_pgx/pgx.go b/dbump_pgx/pgx.go
index cfe35d9..80e0e21 100644
--- a/dbump_pgx/pgx.go
+++ b/dbump_pgx/pgx.go
@@ -39,11 +39,9 @@ func NewMigrator(conn *pgx.Conn, cfg Config) *Migrator {
 	if cfg.Table == "" {
 		cfg.Table = "_dbump_log"
 	}
-	cfg.tableName += cfg.Table
 
-	h := fnv.New64()
-	h.Write([]byte(cfg.tableName))
-	cfg.lockNum = int64(h.Sum64())
+	cfg.tableName += cfg.Table
+	cfg.lockNum = hashTableName(cfg.tableName)
 
 	return &Migrator{
 		conn: conn,
@@ -62,6 +60,13 @@ CREATE TABLE IF NOT EXISTS %s (
 	return err
 }
 
+// Drop is a method from Migrator interface.
+func (pg *Migrator) Drop(ctx context.Context) error {
+	query := fmt.Sprintf(`DROP TABLE IF EXISTS %s;`, pg.cfg.tableName)
+	_, err := pg.conn.Exec(ctx, query)
+	return err
+}
+
 // LockDB is a method from Migrator interface.
 func (pg *Migrator) LockDB(ctx context.Context) error {
 	_, err := pg.conn.Exec(ctx, "SELECT pg_advisory_lock($1);", pg.cfg.lockNum)
@@ -105,3 +110,9 @@ func (pg *Migrator) DoStep(ctx context.Context, step dbump.Step) error {
 		return err
 	})
 }
+
+func hashTableName(s string) int64 {
+	h := fnv.New64()
+	h.Write([]byte(s))
+	return int64(h.Sum64())
+}
diff --git a/dbump_pgx/pgx_test.go b/dbump_pgx/pgx_test.go
index 29d2559..aba889f 100644
--- a/dbump_pgx/pgx_test.go
+++ b/dbump_pgx/pgx_test.go
@@ -104,7 +104,7 @@ func TestMigrateUp(t *testing.T) {
 			Table:  "TestMigrateUp",
 		}),
 		Loader: dbump.NewSliceLoader(migrations),
-		Mode:   dbump.ModeUp,
+		Mode:   dbump.ModeApplyAll,
 	}
 
 	failIfErr(t, dbump.Run(context.Background(), cfg))