Grokbase › Groups › Hadoop › impala-user › January 2014. So, in this article, “Impala vs Hive” we will compare Impala vs Hive performance on the basis of different features and discuss why Impala is faster than Hive, when to use Impala vs hive. Prior to Impala 1.4.0, it was not possible to use the CREATE TABLE LIKE view_name syntax. Objective. 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. The partition can be one that Impala created and is already aware of, or a new partition … It is common to use daily, monthly, or yearly partitions. Turn on suggestions . Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Impala should support a SHOW PARTITIONS statement for Kudu tables. Mixed in a little bit with new Kudu syntax for ALTER TABLE. Blocked on https://issues.apache.org/jira/browse/KUDU-1153. SHOW PARTITIONS; SHOW TABLE EXTENDED; SHOW TBLPROPERTIES; SHOW FUNCTIONS; SHOW COLUMNS; SHOW CREATE TABLE; SHOW INDEXES; Semantic Differences in Impala Statements vs HiveQL. Static and Dynamic Partitioning Clauses . Can someone please help me how to solve this issue. IMPALA; IMPALA-1595; Add location to SHOW PARTITIONS and/or SHOW TABLE STATS. Hi, Problem: I'm using 2.0.1-cdh5 impala version and observed comparison error between hive and impala when I run show partitions command to a SHOW PARTITIONS: Displays information about each partition in a table. XML Word Printable JSON. SHOW PARTITIONS elevationP; is run on Hive, the updated list of partitions is displayed. Component/s: None Labels: None. Type: Sub-task Status: Resolved. There are times when a query is way too complex. Thanks in advance !! Hey Community, We are using a couple CDH clusters for our BI platform. Export If there are no cache directives in place for that table or partition, the result set displays NOT CACHED. 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. Following is an example of the show tables statement. That means 1500 partitions. 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. Priority: Major . I should point out that if I ignore partitioning and instead just try and build a table on top of data from one day (IE. Description. Support Questions Find answers, ask questions, and share your expertise cancel. It does not apply to views. Queries do not need a FROM clause. Resolution: Fixed Affects Version/s: Impala 1.4.1. ... For time-based data, split out the separate parts into their own columns, because Impala cannot partition based on a TIMESTAMP column. The partition can be one that Impala created and is already aware of, or a new partition … 1 ACCEPTED SOLUTION Accepted Solutions Highlighted. Does anyone know why it would not be finding the data? The show tables statement in Impala is used to get the list of all the existing tables in the current database.. You include comparison operators other than = in the PARTITION clause, and the COMPUTE INCREMENTAL STATS statement applies to all partitions that match the comparison expression. 2,509 Views 0 Kudos 1. Log In. Priority: Major . Impala 2.0 Update #impalajp 1. show tables in bank like '*cust*' It is returning the expected results like, which are the tables has a word cust in its name. I tried using the show table stats command in impala, but I'm getting. YEAR=2017/MONTH=8/DAY=2), the data shows. 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. Dropping it the same way on Impala … Impala does … Change setting and parameters of an existing partition. Log In. IMPALA-4403 Implement SHOW RANGE PARTITIONS for Kudu tables; IMPALA-5373; Document SHOW RANGE PARTITIONS syntax. OneCricketeer. XML Word Printable JSON. Type: Bug Status: Resolved. hive cloudera hiveql cloudera-cdh impala. In Impala 1.4.0 and higher, you can create a table with the same column definitions as a view using the CREATE TABLE LIKE technique. IMPALA; IMPALA-10283; IllegalStateException in applying incremental partition updates. Details. INVALIDATE METADATA elevationP; when. Fix Version/s: Impala 2.0. The following statement provides that info: show partitions database.table; However that doesn't make the returned dataset queryable. 1 Impala 2.0 Update Sho Shimauchi, Cloudera 2014/10/31 2. ImpalaTable.column_stats Return results of SHOW COLUMN STATS as a pandas DataFrame. Different syntax and names for query hints. MapReduce specific features of SORT BY, DISTRIBUTE BY, or CLUSTER BY are not exposed. At that time using Impala WITH Clause, we can define aliases to complex parts and include them in the query. ImpalaTable.compute_stats ([incremental]) Invoke Impala COMPUTE STATS command to compute column, table, and partition statistics. Reply. Both Apache Hive and Impala, used for running queries on HDFS. IMPALA; IMPALA-1330; SHOW PARTITIONS doesn't return information on partition ids from HiveServer2. A ... Impala also supports cloud storage options such as S3 and ADLS. January 2014, send an email to impala-user+unsubscribe @ cloudera.org remotely managed, accessible anywhere. 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