andygrove commented on code in PR #666: URL: https://github.com/apache/datafusion-python/pull/666#discussion_r1598526974
########## examples/tpch/convert_data_to_parquet.py: ########## @@ -0,0 +1,142 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. + +""" +This is a utility function that will consumer the data generated by dbgen from TPC-H and convert +it into a parquet file with the column names as expected by the TPC-H specification. It assumes +the data generated resides in a path ../../benchmarks/tpch/data relative to the current file, +as will be generated by the script provided in this repository. +""" + +import os +import pyarrow +import datafusion + +ctx = datafusion.SessionContext() + +all_schemas = {} + +all_schemas["customer"] = [ + ("C_CUSTKEY", pyarrow.int32()), + ("C_NAME", pyarrow.string()), + ("C_ADDRESS", pyarrow.string()), + ("C_NATIONKEY", pyarrow.int32()), + ("C_PHONE", pyarrow.string()), + ("C_ACCTBAL", pyarrow.float32()), Review Comment: nit: not important for example usage, but the numeric fields should be decimal not float -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
