$tree1=
SEL_TREE{
    SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
  }

$tree2=
  SEL_TREE{
    SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
  }

$tree3=tree_or($tree1, $tree2)

$tree3=
  SEL_TREE{
    SEL_ARG(670356<=tl_from..<=1066533, elems=2, nkp=varied)
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
    merges={
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
        }
        SEL_TREE{
          SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
        }
      }
    }
  }

$tree4= 
  SEL_TREE{
    SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
  }

$tree5=tree_or($tree4, $tree3)
$tree5=
  SEL_TREE{
    SEL_ARG(670356<=..tl_from..<=1333958, elems=3, nkp=varied)
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
    merges={
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=tl_from..<=1066533, elems=2, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
          merges={
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
              }
              SEL_TREE{
                SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
              }
            }
          }
        }
        SEL_TREE{
          SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
        }
      }
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
        }
        SEL_TREE{
          SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
        }
        SEL_TREE{
          SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
        }
      }
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=tl_from..<=1333958, elems=2, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
        SEL_TREE{
          SEL_ARG(1066533<=tl_from..<=1333958, elems=2, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
      }
    }
  }
  
...
$tree6=
SEL_TREE{
    SEL_ARG(921514<=tl_from<=921514, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(921514<=tl_from<=921514)))
  }

$tree7=tree_or($tree5, $tree6)
$tree7=
  SEL_TREE{
    SEL_ARG(670356<=..tl_from..<=1333958, elems=4, nkp=varied)
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
    merges={
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=..tl_from..<=1333958, elems=3, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
          merges={
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=tl_from..<=1066533, elems=2, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
                merges={
                  SEL_IMERGE {
                    SEL_TREE{
                      SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
                    }
                    SEL_TREE{
                      SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
                    }
                  }
                }
              }
              SEL_TREE{
                SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
              }
            }
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
              }
              SEL_TREE{
                SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
              }
              SEL_TREE{
                SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
              }
            }
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=tl_from..<=1333958, elems=2, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
              }
              SEL_TREE{
                SEL_ARG(1066533<=tl_from..<=1333958, elems=2, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
              }
            }
          }
        }
        SEL_TREE{
          SEL_ARG(921514<=tl_from<=921514, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(921514<=tl_from<=921514)))
        }
      }
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=tl_from..<=1066533, elems=2, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
        SEL_TREE{
          SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
        }
        SEL_TREE{
          SEL_ARG(921514<=tl_from<=921514, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(921514<=tl_from<=921514)))
        }
      }
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=..tl_from..<=1066533, elems=3, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
        SEL_TREE{
          SEL_ARG(921514<=..tl_from<=1333958, elems=2, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
      }
    }
  }

(gdb) printf "%s",  dbug_print_sel_tree(new_tree, 0)
  SEL_TREE{
    SEL_ARG(12783<=tl_from<=12783, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(12783<=tl_from<=12783)))
  }

tree_or
  SEL_TREE{
    SEL_ARG(12783<=..tl_from..<=1333958, elems=5, nkp=varied)
    SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
    merges={
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=..tl_from..<=1333958, elems=4, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
          merges={
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=..tl_from..<=1333958, elems=3, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
                merges={
                  SEL_IMERGE {
                    SEL_TREE{
                      SEL_ARG(670356<=tl_from..<=1066533, elems=2, nkp=varied)
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
                      merges={
                        SEL_IMERGE {
                          SEL_TREE{
                            SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                            SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
                          }
                          SEL_TREE{
                            SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                            SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
                          }
                        }
                      }
                    }
                    SEL_TREE{
                      SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
                    }
                  }
                  SEL_IMERGE {
                    SEL_TREE{
                      SEL_ARG(670356<=tl_from<=670356, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(670356<=tl_from<=670356)))
                    }
                    SEL_TREE{
                      SEL_ARG(1066533<=tl_from<=1066533, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1066533<=tl_from<=1066533)))
                    }
                    SEL_TREE{
                      SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
                    }
                  }
                  SEL_IMERGE {
                    SEL_TREE{
                      SEL_ARG(670356<=tl_from..<=1333958, elems=2, nkp=varied)
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
                    }
                    SEL_TREE{
                      SEL_ARG(1066533<=tl_from..<=1333958, elems=2, nkp=varied)
                      SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
                    }
                  }
                }
              }
              SEL_TREE{
                SEL_ARG(921514<=tl_from<=921514, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(921514<=tl_from<=921514)))
              }
            }
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=tl_from..<=1066533, elems=2, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
              }
              SEL_TREE{
                SEL_ARG(1333958<=tl_from<=1333958, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(1333958<=tl_from<=1333958)))
              }
              SEL_TREE{
                SEL_ARG(921514<=tl_from<=921514, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(921514<=tl_from<=921514)))
              }
            }
            SEL_IMERGE {
              SEL_TREE{
                SEL_ARG(670356<=..tl_from..<=1066533, elems=3, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
              }
              SEL_TREE{
                SEL_ARG(921514<=..tl_from<=1333958, elems=2, nkp=varied)
                SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
              }
            }
          }
        }
        SEL_TREE{
          SEL_ARG(12783<=tl_from<=12783, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(12783<=tl_from<=12783)))
        }
      }
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(670356<=..tl_from..<=1333958, elems=3, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
        SEL_TREE{
          SEL_ARG(921514<=tl_from<=921514, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(921514<=tl_from<=921514)))
        }
        SEL_TREE{
          SEL_ARG(12783<=tl_from<=12783, nkp=SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10)))
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=SEL_ARG(12783<=tl_from<=12783)))
        }
      }
      SEL_IMERGE {
        SEL_TREE{
          SEL_ARG(12783<=..tl_from..<=1333958, elems=4, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
        SEL_TREE{
          SEL_ARG(12783<=..tl_from<=921514, elems=2, nkp=varied)
          SEL_ARG(10<=tl_namespace<=10, nkp=SEL_ARG(Jaký?<=..tl_title..<=Transkripce, elems=10, nkp=varied))
        }
      }
    }
  }
(gdb)