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Tags: spark* + sql*

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1. Retrospect

   Retrospect is a system for scalable data analysis that combines the simplicity of Python with built‑in map‑reduce, a fast abstract machine, and a framework for distributed computation, aiming to provide easy‑to‑use, expressive, and scalable data analysis.

   2025-08-20 Tags: scalable data analysis, map-reduce, abstract machine, distributed computation, python-like language, google earth engine, spark, dask, sql, presto, bigquery by klotz
2. scala - Querying Spark SQL DataFrame with complex types - Stack Overflow

   Try

   2017-10-18 Tags: spark, sql, dataframe, nested by klotz
3. sparkmagic/Spark Kernel.ipynb at master · jupyter-incubator/sparkmagic

   "executorMemory": "4G", "executorCores":4}

   2017-07-28 Tags: spark, jupyter, hadoop, notebook, sparkmagic, scala, python, sql by klotz
4. scala - Spark dataframes: Extract a column based on the value of another column - Stack Overflow

   column name indirection

   2017-02-27 Tags: scala, spark, sql, tricks by klotz
5. scala - Querying Spark SQL DataFrame with complex types - Stack Overflow

   2017-02-13 Tags: spark, sql, array, map by klotz
6. Spark SQL and DataFrames - Spark 1.6.2 Documentation

   2016-11-22 Tags: spark, sql, dataframes, spark 1.6.2 by klotz
7. caching - Spark SQL: how to cache sql query result without using rdd.cache() - Stack Overflow

   output = sqlContext.sql("SELECT * From people")
   output.registerTempTable('people2')
   sqlContext.cacheTable('people2')
   sqlContext.sql("SELECT count(*) From people2").collect()

   2016-11-18 Tags: sql, spark, cache by klotz
8. Query Nested JSON via Spark SQL | Software Theory and Practice

   2016-11-18 Tags: spark, sql, json, hadoop, explode by klotz
9. 8 SQL-on-Hadoop frameworks worth checking out | Matthew Rathbone

   2014-09-05 Tags: hadoop, sql, spark, implala, shark by klotz

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