table all field

qry.go

@@ -7,6 +7,7 @@ import (
 	"context"
 	"strconv"
 	"strings"
+	"sync"
 
 	"github.com/jackc/pgx/v5"
 )
@@ -34,6 +35,23 @@ type (
 	}
 )
 
+var sbPool = sync.Pool{
+	New: func() any {
+		return new(strings.Builder)
+	},
+}
+
+// get string builder from pool
+func getSB() *strings.Builder {
+	return sbPool.Get().(*strings.Builder)
+}
+
+// put string builder back to pool
+func putSB(sb *strings.Builder) {
+	sb.Reset()
+	sbPool.Put(sb)
+}
+
 func And(cond ...Conditioner) Conditioner {
 	return &CondGroup{op: " AND ", cond: cond}
 }