The following examples show how to make Impala aware of data added to a single partition, after data is loaded into a partition's data directory using some mechanism outside Impala, such as Hive or Spark. 1 ACCEPTED SOLUTION Accepted Solutions Highlighted. Impala SHOW statement: For each table or partition, the SHOW TABLE STATS or SHOW PARTITIONS statement displays the number of bytes currently cached by the HDFS caching feature. Component/s: None Labels: None. Syntax and usage notes for ALTER TABLE, COMPUTE STATS, and SHOW FILES. I tried using the show table stats command in impala, but I'm getting. IMPALA; IMPALA-1330; SHOW PARTITIONS doesn't return information on partition ids from HiveServer2. MapReduce specific features of SORT BY, DISTRIBUTE BY, or CLUSTER BY are not exposed. Export. ImpalaTable.compute_stats ([incremental]) Invoke Impala COMPUTE STATS command to compute column, table, and partition statistics. SHOW PARTITIONS; SHOW TABLE EXTENDED; SHOW TBLPROPERTIES; SHOW FUNCTIONS; SHOW COLUMNS; SHOW CREATE TABLE; SHOW INDEXES; Semantic Differences in Impala Statements vs HiveQL. Impala should support a SHOW PARTITIONS statement for Kudu tables. The down side is that if I create a new table in Hive, I have to "invalidate metadata" in Impala for it to be able to see the new table and for existing tables, I have to "refresh" the underlying Hive table before I can run a query in Impala. For reasons I won't go into we have a need to provide information about the partitions in a table. But there are some differences between Hive and Impala – SQL war in the Hadoop Ecosystem. Computing stats for groups of partitions: In Impala 2.8 and higher, you can run COMPUTE INCREMENTAL STATS on multiple partitions, instead of the entire table or one partition at a time. If you want to get the list of tables in a particular database, first of all, change the context to the required database and get the list of tables in it using show tables statement as shown below. ImpalaTable.column_stats Return results of SHOW COLUMN STATS as a pandas DataFrame. INVALIDATE METADATA elevationP; when. The partition can be one that Impala created and is already aware of, or a new partition … Can someone please help me how to solve this issue. Resolution: Fixed Affects Version/s: Impala 1.4.1. It does not apply to views. Real-time Query for Hadoop; mirror of Apache Impala - cloudera/Impala It is common to use daily, monthly, or yearly partitions. If there are no cache directives in place for that table or partition, the result set displays NOT CACHED. Priority: Major . Does anyone know why it would not be finding the data? So, in this article, we will discuss the whole concept of Impala WITH Clause. FAQ. Example. I tried to find in impala doc if there is something like show latest partition tableName; as show partitions tableName but no luck on that. Details. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. That means 1500 partitions. Reply. Type: Bug Status: Resolved. Blocked on https://issues.apache.org/jira/browse/KUDU-1153. The hive show partition results came back as expected. After that, I have some Streaming Analytics to perform with Apache Flink SQL, and I also want permanent fast storage in Apache Kudu queried with Apache Impala. 1 Impala 2.0 Update Sho Shimauchi, Cloudera 2014/10/31 2. Prior to Impala 1.4.0, it was not possible to use the CREATE TABLE LIKE view_name syntax. YEAR=2017/MONTH=8/DAY=2), the data shows. Impala 2.0 Update #impalajp 1. 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