#840

Committed 18 Oct 2023 09:51PM UTC coverage: 68.616% (-9.8%) from 78.391%

Build # #840

Build Type

push

circle-ci

Committed by

jiashenC

Commit Message

[BUMP]: v0.3.9+dev

Run Details

2 of 2 new or added lines in 1 file covered. (100.0%)

8634 of 12583 relevant lines covered (68.62%)

0.69 hits per line

Source File
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83.33

/evadb/executor/project_executor.py

# coding=utf-8
# Copyright 2018-2023 EvaDB
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Iterator

import pandas as pd

from evadb.database import EvaDBDatabase
from evadb.executor.abstract_executor import AbstractExecutor
from evadb.executor.executor_utils import (
    ExecutorError,
    apply_project,
    instrument_function_expression_cost,
)
from evadb.models.storage.batch import Batch
from evadb.plan_nodes.project_plan import ProjectPlan


class ProjectExecutor(AbstractExecutor):
    """ """

    def __init__(self, db: EvaDBDatabase, node: ProjectPlan):
        super().__init__(db, node)
        self.target_list = node.target_list

    def exec(self, *args, **kwargs) -> Iterator[Batch]:
        # SELECT expr;
        if len(self.children) == 0:
            # Create a dummy batch with size 1
            dummy_batch = Batch(pd.DataFrame([0]))
            batch = apply_project(dummy_batch, self.target_list)
            if not batch.empty():
                yield batch
        # SELECT expr FROM table;
        elif len(self.children) == 1:
            child_executor = self.children[0]
            for batch in child_executor.exec(**kwargs):
                batch = apply_project(batch, self.target_list)
                if not batch.empty():
                    yield batch
        else:
            raise ExecutorError("ProjectExecutor has more than 1 children.")

        # instrument required stats
        instrument_function_expression_cost(self.target_list, self.catalog())

1	# coding=utf-8
2	# Copyright 2018-2023 EvaDB
3	#
4	# Licensed under the Apache License, Version 2.0 (the "License");
5	# you may not use this file except in compliance with the License.
6	# You may obtain a copy of the License at
7	#
8	# http://www.apache.org/licenses/LICENSE-2.0
9	#
10	# Unless required by applicable law or agreed to in writing, software
11	# distributed under the License is distributed on an "AS IS" BASIS,
12	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	# See the License for the specific language governing permissions and
14	# limitations under the License.
15	from typing import Iterator	1✔
16
17	import pandas as pd	1✔
18
19	from evadb.database import EvaDBDatabase	1✔
20	from evadb.executor.abstract_executor import AbstractExecutor	1✔
21	from evadb.executor.executor_utils import (	1✔
22	ExecutorError,
23	apply_project,
24	instrument_function_expression_cost,
25	)
26	from evadb.models.storage.batch import Batch	1✔
27	from evadb.plan_nodes.project_plan import ProjectPlan	1✔
28
29
30	class ProjectExecutor(AbstractExecutor):	1✔
31	""" """
32
33	def __init__(self, db: EvaDBDatabase, node: ProjectPlan):	1✔
34	super().__init__(db, node)	1✔
35	self.target_list = node.target_list	1✔
36
37	def exec(self, args, *kwargs) -> Iterator[Batch]:	1✔
38	# SELECT expr;
39	if len(self.children) == 0:	1✔
40	# Create a dummy batch with size 1
41	dummy_batch = Batch(pd.DataFrame([0]))	×
42	batch = apply_project(dummy_batch, self.target_list)	×
43	if not batch.empty():	×
44	yield batch	×
45	# SELECT expr FROM table;
46	elif len(self.children) == 1:	1✔
47	child_executor = self.children[0]	1✔
48	for batch in child_executor.exec(**kwargs):	1✔
49	batch = apply_project(batch, self.target_list)	1✔
50	if not batch.empty():	1✔
51	yield batch	1✔
52	else:
53	raise ExecutorError("ProjectExecutor has more than 1 children.")
54
55	# instrument required stats
56	instrument_function_expression_cost(self.target_list, self.catalog())	1✔

georgia-tech-db / eva / #840

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