It does not apply to views. Hey Community, We are using a couple CDH clusters for our BI platform. 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. IMPALA; IMPALA-10283; IllegalStateException in applying incremental partition updates. SHOW PARTITIONS; SHOW TABLE EXTENDED; SHOW TBLPROPERTIES; SHOW FUNCTIONS; SHOW COLUMNS; SHOW CREATE TABLE; SHOW INDEXES; Semantic Differences in Impala Statements vs HiveQL. 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. Queries do not need a FROM clause. 115k 12 12 gold badges 79 79 silver badges 165 165 bronze badges. hadoop hive cloudera impala. Type: Sub-task Status: Resolved. That means 1500 partitions. 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. show tables in bank like '*cust*' It is returning the expected results like, which are the tables has a word cust in its name. 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. Fix Version/s: Impala 2.0. Details. 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. It is common to use daily, monthly, or yearly partitions. 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. If there are no cache directives in place for that table or partition, the result set displays NOT CACHED. Support Questions Find answers, ask questions, and share your expertise cancel. Objective. OneCricketeer. For reasons I won't go into we have a need to provide information about the partitions in a table. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Static and Dynamic Partitioning Clauses. INVALIDATE METADATA elevationP; when. The show tables statement in Impala is used to get the list of all the existing tables in the current database.. Impala 2.0 Update #impalajp 1. So, in this article, we will discuss the whole concept of Impala WITH Clause. Component/s: None Labels: None. Different syntax and names for query hints. asked Jan 22 '18 at 15:40. roh roh. However on Impala, even after : REFRESH elevationP; and. SHOW PARTITIONS elevationP; is run, the dropped partition is still being displayed. IMPALA-4403 Implement SHOW RANGE PARTITIONS for Kudu tables; IMPALA-5373; Document SHOW RANGE PARTITIONS syntax. Blocked on https://issues.apache.org/jira/browse/KUDU-1153. 1 ACCEPTED SOLUTION Accepted Solutions Highlighted. Type: Bug Status: Resolved. 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. The following statement provides that info: show partitions database.table; However that doesn't make the returned dataset queryable. See SHOW Statement for details. Dropping it the same way on Impala â¦ 2,509 Views 0 Kudos 1. This capability allows convenient access to a storage system that is remotely managed, accessible from anywhere, and integrated with various cloud-based services. There are times when a query is way too complex. At that time using Impala WITH Clause, we can define aliases to complex parts and include them in the query. Thanks in advance !! Export. Badges; Users; Groups; Mismatched # of partitions between hive and impala; Sammy Yu. SHOW PARTITIONS: Displays information about each partition in a table. Export. Example. Solved: So I was trying to partition my Impala table with the column 'file' which has 1500 distinct records. Prior to Impala 1.4.0, it was not possible to use the CREATE TABLE LIKE view_name syntax. share | improve this question | follow | edited Jan 23 '18 at 2:56. But there are some differences between Hive and Impala â SQL war in the Hadoop Ecosystem. Static and Dynamic Partitioning Clauses . I tried using the show table stats command in impala, but I'm getting. A ... Impala also supports cloud storage options such as S3 and ADLS. 1 Impala 2.0 Update Sho Shimauchi, Cloudera 2014/10/31 2. Impala does â¦ Log In. 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 Impala should support a SHOW PARTITIONS statement for Kudu tables. Log In. ... For time-based data, split out the separate parts into their own columns, because Impala cannot partition based on a TIMESTAMP column.