georgia-tech-db / eva / #725

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78.57
/eva/executor/create_executor.py
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# coding=utf-8
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# Copyright 2018-2022 EVA
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from eva.catalog.catalog_manager import CatalogManager
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from eva.executor.abstract_executor import AbstractExecutor
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from eva.executor.executor_utils import handle_if_not_exists
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from eva.plan_nodes.create_plan import CreatePlan
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from eva.storage.storage_engine import StorageEngine
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class CreateExecutor(AbstractExecutor):




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    def __init__(self, node: CreatePlan):




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        super().__init__(node)




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        self.catalog = CatalogManager()




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    def exec(self, *args, **kwargs):




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        if not handle_if_not_exists(self.node.table_info, self.node.if_not_exists):




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            catalog_entry = self.catalog.create_and_insert_table_catalog_entry(




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                self.node.table_info, self.node.column_list










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            )










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            storage_engine = StorageEngine.factory(catalog_entry)




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            storage_engine.create(table=catalog_entry)




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