cycquery.ops.Sequential¶

class Sequential(*ops: QueryOp)[source]¶

class Sequential(ops: List[QueryOp])

class Sequential(op: OrderedDict[str, QueryOp])

Sequential query operations class.

Chains a sequence of query operations and executes the final query on a table.

Examples

>>> Sequential(Drop(["col1", "col2"]), ...)
>>> Sequential([Drop(["col1", "col2"]), ...])

Initialize the class.

Parameters:: args (QueryOp) – Query operations to be chained sequentially.

Methods

`append`	Append a given query op to the end.
`extend`	Extend the sequential query op with another sequential query op.
`insert`	Insert a given query op at the given index.
`pop`	Pop the query op at the given index.

__add__(other)[source]¶

Add two Sequential objects.

__call__(table)[source]¶

Execute the query operations on the table.

Parameters:: table (Union[Select, Subquery, Table, DBTable]) – Table to be queried.
Returns:: Query result after chaining the query operations.
Return type:: Subquery

__init__(*args)[source]¶

Initialize the class.

Parameters:: args (QueryOp) – Query operations to be chained sequentially.

append(op_)[source]¶

Append a given query op to the end.

extend(sequential)[source]¶

Extend the sequential query op with another sequential query op.

Parameters:: sequential (Sequential) – Sequential object to extend with.
Returns:: Sequential object with the other sequential query op extended.
Return type:: Sequential