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georgia-tech-db / eva / #758

04 Sep 2023 08:37PM UTC coverage: 0.0% (-78.3%) from 78.333%
#758

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hershd23
Increased underline length in at line 75 in text_summarization.rst
	modified:   docs/source/benchmarks/text_summarization.rst

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/evadb/catalog/schema_utils.py
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# coding=utf-8
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# Copyright 2018-2023 EvaDB
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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 typing import Dict, List
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from sqlalchemy import TEXT, Column, Float, Integer, LargeBinary
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from evadb.catalog.catalog_type import ColumnType
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from evadb.catalog.models.utils import ColumnCatalogEntry
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from evadb.utils.logging_manager import logger
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class SchemaUtils(object):
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    @staticmethod
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    def xform_to_sqlalchemy_column(df_column: ColumnCatalogEntry) -> Column:
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        column_type = df_column.type
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        sqlalchemy_column = None
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        if column_type == ColumnType.INTEGER:
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            sqlalchemy_column = Column(Integer)
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        elif column_type == ColumnType.FLOAT:
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            sqlalchemy_column = Column(Float)
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        elif column_type == ColumnType.TEXT:
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            sqlalchemy_column = Column(TEXT)
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        elif column_type == ColumnType.NDARRAY:
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            sqlalchemy_column = Column(LargeBinary)
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        else:
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            msg = "Invalid column type: " + str(column_type)
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            logger.error(msg)
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            raise NotImplementedError
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        return sqlalchemy_column
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    @staticmethod
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    def xform_to_sqlalchemy_schema(
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        column_list: List[ColumnCatalogEntry],
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    ) -> Dict[str, Column]:
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        """Converts the list of DataFrameColumns to SQLAlchemyColumns
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        Args:
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            column_list (List[ColumnCatalog]): columns to be converted
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        Returns:
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            Dict[str, Column]: mapping from column_name to sqlalchemy column object
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        """
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        return {
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            column.name: SchemaUtils.xform_to_sqlalchemy_column(column)
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            for column in column_list
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        }
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