type Plugin interface {
	Name() string
	Initialize(*DB) error
}

type ParamsFilter interface {
	ParamsFilter(ctx context.Context, sql string, params ...interface{}) (string, []interface{})
}

// ConnPool db conns pool interface
type ConnPool interface {
	PrepareContext(ctx context.Context, query string) (*sql.Stmt, error)
	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)

fs.s3a.endpoint=http://minio:9000
fs.s3a.impl=org.apache.hadoop.fs.s3a.S3AFileSystem

fs.s3a.committer.threads=2048 # Number of threads writing to MinIO
fs.s3a.connection.maximum=8192 # Maximum number of concurrent conns
fs.s3a.fast.upload.active.blocks=2048 # Number of parallel uploads
fs.s3a.fast.upload.buffer=disk # Use disk as the buffer for uploads
fs.s3a.fast.upload=true # Turn on fast upload mode

		Value: func() time.Duration {
			if orchestrated {
				return 30 * time.Second
			}
			return 10 * time.Minute
		}(),
		EnvVar: "MINIO_DNS_CACHE_TTL",
	},
	cli.IntFlag{
		Name:   "max-idle-conns-per-host",
		Usage:  "set a custom max idle connections per host value",
		Hidden: true,
		Value:  2048,
		EnvVar: "MINIO_MAX_IDLE_CONNS_PER_HOST",
	},
	cli.StringSliceFlag{
		Name:  "ftp",

// First finds the first record ordered by primary key, matching given conditions conds
func (db *DB) First(dest interface{}, conds ...interface{}) (tx *DB) {
	tx = db.Limit(1).Order(clause.OrderByColumn{
		Column: clause.Column{Table: clause.CurrentTable, Name: clause.PrimaryKey},
	})
	if len(conds) > 0 {
		if exprs := tx.Statement.BuildCondition(conds[0], conds[1:]...); len(exprs) > 0 {
			tx.Statement.AddClause(clause.Where{Exprs: exprs})

* Documentation automatique des modèles de données avec <a href="http://json-schema.org/"...

		},
	}

	defer func() {
		if !reflect.DeepEqual(conn.got, conn.expect) {
			t.Errorf("expect %#v but got %#v", conn.expect, conn.got)
		}
	}()

	db, err := gorm.Open(mysql.New(mysql.Config{Conn: conn, DisableWithReturning: true}))
	db.Logger = DB.Logger
	if err != nil {
		t.Fatalf("Should open db success, but got %v", err)
	}

//
// [docs]: https://gorm.io/docs/query.html#Conditions
func (db *DB) Where(query interface{}, args ...interface{}) (tx *DB) {
	tx = db.getInstance()
	if conds := tx.Statement.BuildCondition(query, args...); len(conds) > 0 {
		tx.Statement.AddClause(clause.Where{Exprs: conds})
	}
	return
}

// Not add NOT conditions
//
// Not works similarly to where, and has the same syntax.
//

								where.Exprs[0] = clause.AndConditions(orConds)
							}
						}
					}
					conds = append(conds, clause.And(where.Exprs...))
				} else if cs.Expression != nil {
					conds = append(conds, cs.Expression)
				}
			}
		case map[interface{}]interface{}:
			for i, j := range v {
				conds = append(conds, clause.Eq{Column: i, Value: j})
			}
		case map[string]string:
			keys := make([]string, 0, len(v))

				conds = append(conds, clause.IN{Column: pcolumn, Values: pvalues})
			} else {
				return ErrPrimaryKeyRequired
			}

			_, rvs := schema.GetIdentityFieldValuesMapFromValues(association.DB.Statement.Context, values, primaryFields)
			relColumn, relValues := schema.ToQueryValues(rel.Schema.Table, foreignKeys, rvs)
			conds = append(conds, clause.IN{Column: relColumn, Values: relValues})

	defer cancel()

	resp, err := healBucketRPC.Call(ctx, conn, mss)
	return resp.ValueOrZero(), toStorageErr(err)
}

// GetBucketInfo returns bucket stat info from a peer
func (client *remotePeerS3Client) GetBucketInfo(ctx context.Context, bucket string, opts BucketOptions) (BucketInfo, error) {
	conn := client.gridConn()
	if conn == nil {
		return BucketInfo{}, nil
	}