concepts.dm.pdsketch.crow.crow_state.TotallyOrderedPlan#

class TotallyOrderedPlan[source]#

Bases: object

A totally ordered plan sequence.

Methods

exclude(index)

Exclude the given index from the sequence; return a new sequence.

gen_string()

Generate the string representation of the plan.

get_return_all_skeletons_flag(index)

Get the return_all_skeletons flag of the given index.

Attributes

sequence

The sequence of the plan.

return_all_skeletons_flags

For each item in the sequence, whether to return all the skeletons.

is_ordered

Whether the sequence is ordered.

__init__(sequence, return_all_skeletons_flags=None, is_ordered=True)[source]#

Initialize the totally ordered plan sequence.

Parameters:
__len__()[source]#
__new__(**kwargs)#
exclude(index)[source]#

Exclude the given index from the sequence; return a new sequence.

Parameters:

index (int)

gen_string()[source]#

Generate the string representation of the plan.

get_return_all_skeletons_flag(index)[source]#

Get the return_all_skeletons flag of the given index. If the flag is not set, then return True.

Parameters:

index (int)

Return type:

bool

is_ordered: bool#

Whether the sequence is ordered. If it’s not ordered, then the sequence is treated as a set.

return_all_skeletons_flags: Tuple[bool, ...] | None#

For each item in the sequence, whether to return all the skeletons. This value can be set to None when is_ordered is False.

sequence: Tuple[ValueOutputExpression | RegressionRuleApplier, ...]#

The sequence of the plan.