split files

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

cluster/hasql/cluster.go

@@ -3,20 +3,12 @@ package sql
 import (
 	"context"
 	"database/sql"
-	"errors"
 	"reflect"
 	"unsafe"
 
 	"golang.yandex/hasql/v2"
 )
 
-var (
-	ErrClusterChecker    = errors.New("cluster node checker required")
-	ErrClusterDiscoverer = errors.New("cluster node discoverer required")
-	ErrClusterPicker     = errors.New("cluster node picker required")
-	ErrorNoAliveNodes    = errors.New("cluster no alive nodes")
-)
-
 func newSQLRowError() *sql.Row {
 	row := &sql.Row{}
 	t := reflect.TypeOf(row).Elem()
@@ -33,25 +25,6 @@ type ClusterQuerier interface {
 	WaitForNodes(ctx context.Context, criterion ...hasql.NodeStateCriterion) error
 }
 
-type Querier interface {
-	// Basic connection methods
-	PingContext(ctx context.Context) error
-	Close() error
-
-	// Query methods with context
-	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
-	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
-	QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row
-
-	// Prepared statements with context
-	PrepareContext(ctx context.Context, query string) (*sql.Stmt, error)
-
-	// Transaction management with context
-	BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error)
-
-	Conn(ctx context.Context) (*sql.Conn, error)
-}
-
 type Cluster struct {
 	hasql   *hasql.Cluster[Querier]
 	options ClusterOptions