Impala shares the same tablespace with hive
Witryna26 paź 2024 · The solution would be: create table t1 as select i, x from (select max (position) as max_position from t) p lateral view posexplode (split (space (p.max_position), ' ')) pe as i, x select a.i, coalesce (b.value, 0) as value from t1 a LEFT JOIN t b on a.i = b.position where a.i != 0 Thanks Gordon! Share Improve this answer … Witryna26 mar 2024 · No idea how tableau works, try posting a new answer. If you connect to impala directly using the client or hue (in cdh distro) you should be able to run this command with problem. Even more, this is just a sql statement in impala, you should be able to run it as any other query. –
Impala shares the same tablespace with hive
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WitrynaBecause Impala and Hive share the same metastore database and their tables are often used interchangeably, the following section covers differences between Impala and Hive in detail. Continue reading: HiveQL Features not Available in Impala Semantic Differences Between Impala and HiveQL Features HiveQL Features not Available in …
Witryna26 sie 2024 · Then I make. spark.catalog ().refreshTable ("mytable");//mytable is External table. And after I'm trying to see the data from Impala I got the following exception: Failed to open HDFS file. No such file or directory. root cause: RemoteException: File does not exist. After I make on impala refresh mytable I can see the data. WitrynaImpala metadata is replicated as part of regular Hive/Impala replication operations. Impala metadata replication is performed as a part of Hive external table replication. …
WitrynaImpala supports a number of file formats used in Apache Hadoop. It can also load and query data files produced by other Hadoop components such as hive. After … Witryna11 sty 2024 · Hive doesn't support updates (or deletes), but it supports INSERT INTO, so it is possible to add new rows to an existing table. > insert overwrite table table_name > select *, case when [condition] then 1 else flag_col end as flag_col, from table_name //If you want to use you can add where// > where id <> 1; Share Follow
WitrynaTables are the primary containers for data in Impala. They have the familiar row and column layout similar to other database systems, plus some features such as …
Witryna26 lis 2024 · Impala uses the Hive metastore so anything created in Hive is available from Impala after issuing an INVALIDATE METADATA dbname.tablename. … bishop feehan girls soccerWitryna1 wrz 2024 · 1 I am having hive table with following structure CREATE TABLE gcganamrswp_work.historical_trend_result ( column_name string, metric_name string, current_percentage string, lower_threshold double, upper_threshold double, calc_status string, final_status string, support_override string, dataset_name string, … bishop feehan open houseWitrynaI'm trying to create a table in Impala from a CSV that I've uploaded into an HDFS directory. ... the following variations, based on suggestions from @K S Nidhin and @JTUP. However, each variation returned the same result as the queries written ... I was able to get a different variation of the query using the SERDE and … bishop feehan tuitionWitryna1 gru 2024 · Create new table in new database: Create Table table_name; Insert data in new tables from old tables using the command: insert into new_table_name partition (partition_column='value') select col1, col2, col3, col4 from old_db.old_table_name where partition_column='value'; Share Improve this answer Follow edited May 3, 2016 at … bishop feehan high school hockeyWitryna24 lis 2015 · impala Share Follow edited Nov 25, 2015 at 15:14 asked Nov 24, 2015 at 14:21 Tremo 589 6 19 More info : whether i sort/index/bucket tables or not in hive, the Impala queries on this table read the same amount of Bytes. I don't find an other way to use sort. – Tremo Nov 25, 2015 at 11:07 bishop feehan plus portalsWitryna31 lip 2024 · By default the directory is owned by hive user and hadoop group, you can run below hdfs command as hdfs user and then try to create a database hdfs dfs … bishop feehan high school tuitionWitryna10 gru 2013 · Impala can't access all hive table Ask Question Asked 9 years, 3 months ago Modified 4 years, 2 months ago Viewed 24k times 21 I try to query hbase data … dark horse manufacturing