...另外,通过包含实现 jar 文件(在 spark-submit 中使用 -jars 选项)的方式 PySpark 可以调用 Scala 或 Java 编写的 UDF(through the SparkContext...例如,Python UDF(比如上面的 CTOF 函数)会导致数据在执行器的 JVM 和运行 UDF 逻辑的 Python 解释器之间进行序列化操作;与 Jav
{{ config( materialized='table', ha=true, format='parquet', table_type='hive', partitioned_by=['status'], s3_data_naming='table_unique' ) }} select 'a' as user_id, 'pi' as user_name, 'active' as status union all select 'b' as user_id, 'sh' as user_name, 'disabled' as...
我已经做了以下代码,但它不工作- from pyspark.sql import functions as Fdf.withColumn('combcol',F.concat(F.lit('col_'),df['rank'])).groupby('id').pi 浏览13提问于2019-05-09得票数 0 1回答 sql developer中的pivot 、、 我试图将结果集放入SQL Developer的pivot中,但它看起来查询是不正确的。...
line 737, in save self._jwrite.save() File "/usr/lib/spark/python/lib/py4j-0.10.7-src.zip/py4j/java_gateway.py", line 1257, in __call__ answer, self.gateway_client, self.target_id, self.name) File "/usr/lib/spark/python/lib/pyspark.zip/pyspark/...
{{ config( materialized="incremental", incremental_strategy="insert_overwrite", partition_by={ "field": "created_date", "data_type": "timestamp", "granularity": "day", "time_ingestion_partitioning": true, "copy_partitions": true }) }}select user_id, event_name, created_at, -- values...
To run metadata queries in dbt, you need to have a namespace named default in Spark when connecting with Thrift. You can check available namespaces by using Spark's pyspark and running spark.sql("SHOW NAMESPACES").show(). If the default namespace doesn't exist, create it by running ...
{{ config( materialized='table', ha=true, format='parquet', table_type='hive', partitioned_by=['status'], s3_data_naming='table_unique' ) }} select 'a' as user_id, 'pi' as user_name, 'active' as status union all select 'b' as user_id, 'sh' as user_name, 'disabled' as...
{{ config( materialized='table', ha=true, format='parquet', table_type='hive', partitioned_by=['status'], s3_data_naming='table_unique' ) }} select 'a' as user_id, 'pi' as user_name, 'active' as status union all select 'b' as user_id, 'sh' as user_name, 'disabled' as...