试图用HQL中的变量替换Hive String字面

Question

嗨，我有一个简单的创建表语句...

set location_stage=${env:HDFS_STAGING_DIR};
CREATE EXTERNAL TABLE IF NOT EXISTS stage.test(
TEST_ID INT,
TEST_NAME STRING
)
ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.OpenCSVSerde'
WITH SERDEPROPERTIES (
   "separatorChar" = ",",
   "quoteChar"     = """,
   "escapeChar"    = "\")
STORED AS TEXTFILE
LOCATION "${hivevar:location_stage}";

我不需要'hivevar：location_stage' - 我只需要'env：hdfs_staging_dir'。但是，都没有工作。我在"位置"子句中使用了这两个。我都用命令行

运行

hive -f test_hive_variable.sql

但是我会收到以下错误...

FAILED: IllegalArgumentException java.net.URISyntaxException: Relative path in absolute URI: ${hivevar:location_stage%7D

Hive版本为Hive 1.2.1000.2.4.2.0-258

Answer 1

您的脚本可以：

CREATE EXTERNAL TABLE IF NOT EXISTS stage.test(
TEST_ID INT,
TEST_NAME STRING
)
ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.OpenCSVSerde'
WITH SERDEPROPERTIES (
   "separatorChar" = ",",
   "quoteChar"     = """,
   "escapeChar"    = "\")
STORED AS TEXTFILE
LOCATION "${HDFS_STAGING_DIR}";

然后通过HDFS_STAGING_DIR，您可以使用：

hive -f test_hive_variable.hql --hivevar HDFS_STAGING_DIR="/user/hive/warehouse/staging_dir"