mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2026-08-19 13:46:58 +00:00
Chris LuandGitHub
873705baf9
* postgres2: default the filemeta CREATE TABLE when createTable is unset An empty createTable rendered through fmt.Sprintf produced %!(EXTRA string=filemeta), which Postgres rejected with a syntax error at init. Fall back to a working template so a minimal config bootstraps. * mysql2: default the filemeta CREATE TABLE when createTable is unset Same empty-template failure the postgres2 path had: an unset createTable rendered to %!(EXTRA string=filemeta) and MySQL rejected it at init. Fall back to a working template.
82 lines
3.2 KiB
Go
82 lines
3.2 KiB
Go
package mysql
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
_ "github.com/go-sql-driver/mysql"
|
|
"github.com/seaweedfs/seaweedfs/weed/filer/abstract_sql"
|
|
)
|
|
|
|
type SqlGenMysql struct {
|
|
CreateTableSqlTemplate string
|
|
DropTableSqlTemplate string
|
|
UpsertQueryTemplate string
|
|
// Force byte ordering on a non-binary name column; see ConfigureListOrdering.
|
|
ForceBinaryCollation bool
|
|
}
|
|
|
|
// DefaultUpsertQuery keeps INSERTs idempotent so the inode-index KvPut
|
|
// after every entry write does not emit a duplicate-key roundtrip on
|
|
// every mutation. The VALUES() form works on MariaDB and MySQL >=5.7;
|
|
// the newer "AS new" alias from MySQL 8.0.19 errors on MariaDB, so it
|
|
// is left for users to opt into via an explicit upsertQuery.
|
|
const DefaultUpsertQuery = "INSERT INTO `%s` (`dirhash`,`name`,`directory`,`meta`) VALUES(?,?,?,?) ON DUPLICATE KEY UPDATE `meta` = VALUES(`meta`)"
|
|
|
|
// DefaultCreateTableQuery is used when createTable is left unset; an empty
|
|
// template would otherwise render as %!(EXTRA ...) garbage SQL.
|
|
const DefaultCreateTableQuery = "CREATE TABLE IF NOT EXISTS `%s` (`dirhash` BIGINT NOT NULL, `name` VARCHAR(766) NOT NULL, `directory` TEXT NOT NULL, `meta` LONGBLOB, PRIMARY KEY (`dirhash`, `name`)) DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin"
|
|
|
|
var (
|
|
_ = abstract_sql.SqlGenerator(&SqlGenMysql{})
|
|
)
|
|
|
|
func (gen *SqlGenMysql) GetSqlInsert(tableName string) string {
|
|
if gen.UpsertQueryTemplate != "" {
|
|
return fmt.Sprintf(gen.UpsertQueryTemplate, tableName)
|
|
} else {
|
|
return fmt.Sprintf("INSERT INTO `%s` (`dirhash`,`name`,`directory`,`meta`) VALUES(?,?,?,?)", tableName)
|
|
}
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlUpdate(tableName string) string {
|
|
return fmt.Sprintf("UPDATE `%s` SET `meta` = ? WHERE `dirhash` = ? AND `name` = ? AND `directory` = ?", tableName)
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlFind(tableName string) string {
|
|
return fmt.Sprintf("SELECT `meta` FROM `%s` WHERE `dirhash` = ? AND `name` = ? AND `directory` = ?", tableName)
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlDelete(tableName string) string {
|
|
return fmt.Sprintf("DELETE FROM `%s` WHERE `dirhash` = ? AND `name` = ? AND `directory` = ?", tableName)
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlDeleteFolderChildren(tableName string) string {
|
|
return fmt.Sprintf("DELETE FROM `%s` WHERE `dirhash` = ? AND `directory` = ?", tableName)
|
|
}
|
|
|
|
// nameExpr forces byte ordering on a non-binary column at the cost of a filesort.
|
|
func (gen *SqlGenMysql) nameExpr() string {
|
|
if gen.ForceBinaryCollation {
|
|
return "BINARY `name`"
|
|
}
|
|
return "`name`"
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlListExclusive(tableName string) string {
|
|
name := gen.nameExpr()
|
|
return fmt.Sprintf("SELECT `name`, `meta` FROM `%s` WHERE `dirhash` = ? AND %s > ? AND `directory` = ? AND %s LIKE ? ORDER BY %s ASC LIMIT ?", tableName, name, name, name)
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlListInclusive(tableName string) string {
|
|
name := gen.nameExpr()
|
|
return fmt.Sprintf("SELECT `name`, `meta` FROM `%s` WHERE `dirhash` = ? AND %s >= ? AND `directory` = ? AND %s LIKE ? ORDER BY %s ASC LIMIT ?", tableName, name, name, name)
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlCreateTable(tableName string) string {
|
|
return fmt.Sprintf(gen.CreateTableSqlTemplate, tableName)
|
|
}
|
|
|
|
func (gen *SqlGenMysql) GetSqlDropTable(tableName string) string {
|
|
return fmt.Sprintf(gen.DropTableSqlTemplate, tableName)
|
|
}
|