Spark3.0 Sql 使用HiveTableScanExec 读取Hive orc表源码分析及参数调优
Spark3.0 Sql 使用HiveTableScanExec 读取Hive orc表源码分析及参数调优 1 环境准备 1.1 示例代码 import org.apache.spark.sql.SparkSessionobject SparkSqlHive { def main(args: Ar...
hivesql 迁移spark3.0 sparksql报错如Cannot safely cast '字段
一问题 hivesql可以正常运行,spark3.0运行报错如图 spark3.0配置查看源码新增一个valSTORE_ASSIGNMENT_POLICY=buildConf("spark.sql.storeAssignmentPolicy").doc("Wheninsertingavaluein...