impala show partitions

In Impala 1.4 and later, there is a SHOW PARTITIONS statement that displays information about each partition in a table. However on Impala, even after : REFRESH elevationP; and. Details. Priority: Major . IMPALA; IMPALA-1330; SHOW PARTITIONS doesn't return information on partition ids from HiveServer2. Turn on suggestions . share | improve this question | follow | edited Jan 23 '18 at 2:56. 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. For reasons I won't go into we have a need to provide information about the partitions in a table. 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. Can someone please help me how to solve this issue. SHOW PARTITIONS elevationP; is run on Hive, the updated list of partitions is displayed. asked Jan 22 '18 at 15:40. roh roh. 1 Impala 2.0 Update Sho Shimauchi, Cloudera 2014/10/31 2. Details. 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. I've verifified that the impala user is on the facl lists for these areas. Support Questions Find answers, ask questions, and share your expertise cancel. Impala should support a SHOW PARTITIONS statement for Kudu tables. 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. Type: Bug Status: Resolved. hadoop hive cloudera impala. IMPALA; IMPALA-10283; IllegalStateException in applying incremental partition updates. Hey Community, We are using a couple CDH clusters for our BI platform. Although, there is much more to learn about using Impala WITH Clause. Static and Dynamic Partitioning Clauses. FAQ. 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 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. Component/s: None Labels: None. The show tables statement in Impala is used to get the list of all the existing tables in the current database.. It does not apply to views. A ... Impala also supports cloud storage options such as S3 and ADLS. 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. 115k 12 12 gold badges 79 79 silver badges 165 165 bronze badges. Log In. Impala does â¦ So, in this article, we will discuss the whole concept of Impala WITH Clause. Different syntax and names for query hints. Grokbase âº Groups âº Hadoop âº impala-user âº January 2014. MapReduce specific features of SORT BY, DISTRIBUTE BY, or CLUSTER BY are not exposed. show tables in bank like '*cust*' It is returning the expected results like, which are the tables has a word cust in its name. But there are some differences between Hive and Impala â SQL war in the Hadoop Ecosystem. SHOW PARTITIONS databaseFoo.tableBar LIMIT 10; -- (Note: Hive 4.0.0 and later) SHOW PARTITIONS databaseFoo.tableBar PARTITION(ds='2010-03-03') LIMIT 10; -- (Note: Hive 4.0.0 and later) SHOW PARTITIONS databaseFoo.tableBar PARTITION(ds='2010-03-03') ORDER BY hr DESC LIMIT 10; -- (Note: Hive 4.0.0 and later) SHOW PARTITIONS databaseFoo.tableBar PARTITION(ds='2010-03-03') WHERE â¦ 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 Dropping it the same way on Impala â¦ Prior to Impala 1.4.0, it was not possible to use the CREATE TABLE LIKE view_name syntax. Static and Dynamic Partitioning Clauses . The partition can be one that Impala created and is already aware of, or a new partition â¦ XML Word Printable JSON. XML Word Printable JSON. Does anyone know why it would not be finding the data? If there are no cache directives in place for that table or partition, the result set displays NOT CACHED. Log In. 1 ACCEPTED SOLUTION Accepted Solutions Highlighted. Reply. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Solved: So I was trying to partition my Impala table with the column 'file' which has 1500 distinct records. Both Apache Hive and Impala, used for running queries on HDFS. I first run. Priority: Major . SHOW PARTITIONS: Displays information about each partition in a table. Following is an example of the show tables statement. The partition can be one that Impala created and is already aware of, or a new partition â¦ Example. YEAR=2017/MONTH=8/DAY=2), the data shows. 1. INVALIDATE METADATA elevationP; when. ImpalaTable.column_stats Return results of SHOW COLUMN STATS as a pandas DataFrame. ImpalaTable.compute_stats ([incremental]) Invoke Impala COMPUTE STATS command to compute column, table, and partition statistics. SHOW PARTITIONS elevationP; is run, the dropped partition is still being displayed. Impala 2.0 Update #impalajp 1. Export show files in sample_table partition (j < 5); show files in sample_table partition (k = 3, l between 1 and 10); show files in sample_table partition (month like 'J%');]]> < note > This statement applies to tables and partitions stored on HDFS, or in the Amazon Simple Storage System (S3). So, in this article, âImpala vs Hiveâ 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. The hive show partition results came back as expected. 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. ... For time-based data, split out the separate parts into their own columns, because Impala cannot partition based on a TIMESTAMP column. There are times when a query is way too complex. Queries do not need a FROM clause. That means 1500 partitions. The following statement provides that info: show partitions database.table; However that doesn't make the returned dataset queryable. Type: Sub-task Status: Resolved. See SHOW Statement for details. Syntax and usage notes for ALTER TABLE, COMPUTE STATS, and SHOW FILES. At that time using Impala WITH Clause, we can define aliases to complex parts and include them in the query. IMPALA-4403 Implement SHOW RANGE PARTITIONS for Kudu tables; IMPALA-5373; Document SHOW RANGE PARTITIONS syntax. Fix Version/s: Impala 2.0. Resolution: Fixed Affects Version/s: Impala 1.4.1. This capability allows convenient access to a storage system that is remotely managed, accessible from anywhere, and integrated with various cloud-based services. Blocked on https://issues.apache.org/jira/browse/KUDU-1153. Export. Mixed in a little bit with new Kudu syntax for ALTER TABLE. Real-time Query for Hadoop; mirror of Apache Impala - cloudera/Impala Description. Log In. Export. 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 PARTITIONS; SHOW TABLE EXTENDED; SHOW TBLPROPERTIES; SHOW FUNCTIONS; SHOW COLUMNS; SHOW CREATE TABLE; SHOW INDEXES; Semantic Differences in Impala Statements vs HiveQL. Badges; Users; Groups; Mismatched # of partitions between hive and impala; Sammy Yu. 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. 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. It is common to use daily, monthly, or yearly partitions. IMPALA; IMPALA-1595; Add location to SHOW PARTITIONS and/or SHOW TABLE STATS. hive cloudera hiveql cloudera-cdh impala. Thanks in advance !! 2,509 Views 0 Kudos 1. To unsubscribe from this group and stop receiving emails from it, send an email to impala-user+unsubscribe@cloudera.org. OneCricketeer. I tried using the show table stats command in impala, but I'm getting. Specifying all the partition columns in a SQL statement is called static partitioning, because the statement affects a single predictable partition. Change setting and parameters of an existing partition. Now my requirement is i want all the tables which will have cust in its name and table should not have quarter2. Table, COMPUTE STATS command to impala show partitions column, table, and show FILES distinct. Ids from HiveServer2 PARTITIONS database.table ; however that does n't make the returned dataset queryable information. For our BI platform â SQL war in the query now my requirement I..., we can define aliases to complex parts and include them in the query impala-4403 Implement show RANGE for. 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