filer store: add postgres2

2 files changed, 60 insertions, 48 deletions

diff --git a/weed/filer/postgres/postgres_sql_gen.go b/weed/filer/postgres/postgres_sql_gen.go
new file mode 100644
index 000000000..284cf254b
--- /dev/null
+++ b/weed/filer/postgres/postgres_sql_gen.go
@@ -0,0 +1,53 @@
+package postgres
+
+import (
+	"fmt"
+
+	"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
+	_ "github.com/lib/pq"
+)
+
+type SqlGenPostgres struct {
+	CreateTableSqlTemplate string
+	DropTableSqlTemplate   string
+}
+
+var (
+	_ = abstract_sql.SqlGenerator(&SqlGenPostgres{})
+)
+
+func (gen *SqlGenPostgres) GetSqlInsert(bucket string) string {
+	return fmt.Sprintf("INSERT INTO %s (dirhash,name,directory,meta) VALUES($1,$2,$3,$4)", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlUpdate(bucket string) string {
+	return fmt.Sprintf("UPDATE %s SET meta=$1 WHERE dirhash=$2 AND name=$3 AND directory=$4", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlFind(bucket string) string {
+	return fmt.Sprintf("SELECT meta FROM %s WHERE dirhash=$1 AND name=$2 AND directory=$3", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlDelete(bucket string) string {
+	return fmt.Sprintf("DELETE FROM %s WHERE dirhash=$1 AND name=$2 AND directory=$3", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlDeleteFolderChildren(bucket string) string {
+	return fmt.Sprintf("DELETE FROM %s WHERE dirhash=$1 AND directory=$2", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlListExclusive(bucket string) string {
+	return fmt.Sprintf("SELECT NAME, meta FROM %s WHERE dirhash=$1 AND name>$2 AND directory=$3 AND name like $4 ORDER BY NAME ASC LIMIT $5", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlListInclusive(bucket string) string {
+	return fmt.Sprintf("SELECT NAME, meta FROM %s WHERE dirhash=$1 AND name>=$2 AND directory=$3 AND name like $4 ORDER BY NAME ASC LIMIT $5", bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlCreateTable(bucket string) string {
+	return fmt.Sprintf(gen.CreateTableSqlTemplate, bucket)
+}
+
+func (gen *SqlGenPostgres) GetSqlDropTable(bucket string) string {
+	return fmt.Sprintf(gen.DropTableSqlTemplate, bucket)
+}
diff --git a/weed/filer/postgres/postgres_store.go b/weed/filer/postgres/postgres_store.go
index 8c36b8672..27c6278c7 100644
--- a/weed/filer/postgres/postgres_store.go
+++ b/weed/filer/postgres/postgres_store.go
@@ -14,51 +14,6 @@ const (
 	CONNECTION_URL_PATTERN = "host=%s port=%d sslmode=%s connect_timeout=30"
 )
 
-type SqlGenPostgres struct {
-	createTableSqlTemplate string
-	dropTableSqlTemplate string
-}
-
-var (
-	_ = abstract_sql.SqlGenerator(&SqlGenPostgres{})
-)
-
-func (gen *SqlGenPostgres) GetSqlInsert(bucket string) string {
-	return "INSERT INTO filemeta (dirhash,name,directory,meta) VALUES($1,$2,$3,$4)"
-}
-
-func (gen *SqlGenPostgres) GetSqlUpdate(bucket string) string {
-	return "UPDATE filemeta SET meta=$1 WHERE dirhash=$2 AND name=$3 AND directory=$4"
-}
-
-func (gen *SqlGenPostgres) GetSqlFind(bucket string) string {
-	return "SELECT meta FROM filemeta WHERE dirhash=$1 AND name=$2 AND directory=$3"
-}
-
-func (gen *SqlGenPostgres) GetSqlDelete(bucket string) string {
-	return "DELETE FROM filemeta WHERE dirhash=$1 AND name=$2 AND directory=$3"
-}
-
-func (gen *SqlGenPostgres) GetSqlDeleteFolderChildren(bucket string) string {
-	return "DELETE FROM filemeta WHERE dirhash=$1 AND directory=$2"
-}
-
-func (gen *SqlGenPostgres) GetSqlListExclusive(bucket string) string {
-	return "SELECT NAME, meta FROM filemeta WHERE dirhash=$1 AND name>$2 AND directory=$3 AND name like $4 ORDER BY NAME ASC LIMIT $5"
-}
-
-func (gen *SqlGenPostgres) GetSqlListInclusive(bucket string) string {
-	return "SELECT NAME, meta FROM filemeta WHERE dirhash=$1 AND name>=$2 AND directory=$3 AND name like $4 ORDER BY NAME ASC LIMIT $5"
-}
-
-func (gen *SqlGenPostgres) GetSqlCreateTable(bucket string) string {
-	return fmt.Sprintf(gen.createTableSqlTemplate, bucket)
-}
-
-func (gen *SqlGenPostgres) GetSqlDropTable(bucket string) string {
-	return fmt.Sprintf(gen.dropTableSqlTemplate, bucket)
-}
-
 func init() {
 	filer.Stores = append(filer.Stores, &PostgresStore{})
 }
@@ -78,18 +33,19 @@ func (store *PostgresStore) Initialize(configuration util.Configuration, prefix
 		configuration.GetString(prefix+"hostname"),
 		configuration.GetInt(prefix+"port"),
 		configuration.GetString(prefix+"database"),
+		configuration.GetString(prefix+"schema"),
 		configuration.GetString(prefix+"sslmode"),
 		configuration.GetInt(prefix+"connection_max_idle"),
 		configuration.GetInt(prefix+"connection_max_open"),
 	)
 }
 
-func (store *PostgresStore) initialize(user, password, hostname string, port int, database, sslmode string, maxIdle, maxOpen int) (err error) {
+func (store *PostgresStore) initialize(user, password, hostname string, port int, database, schema, sslmode string, maxIdle, maxOpen int) (err error) {
 
 	store.SupportBucketTable = false
 	store.SqlGenerator = &SqlGenPostgres{
-		createTableSqlTemplate: "",
-		dropTableSqlTemplate: "drop table %s",
+		CreateTableSqlTemplate: "",
+		DropTableSqlTemplate:   "drop table %s",
 	}
 
 	sqlUrl := fmt.Sprintf(CONNECTION_URL_PATTERN, hostname, port, sslmode)
@@ -102,6 +58,9 @@ func (store *PostgresStore) initialize(user, password, hostname string, port int
 	if database != "" {
 		sqlUrl += " dbname=" + database
 	}
+	if schema != "" {
+		sqlUrl += " search_path=" + schema
+	}
 	var dbErr error
 	store.DB, dbErr = sql.Open("postgres", sqlUrl)
 	if dbErr != nil {