Successfully merging a pull request may close this issue. create table TEST_HIVE_BUCKETS_AGAIN ( COL1_NEW string, COL2_NEW string ) PARTITIONED BY ( eff_dt timestamp) CLUSTERED BY( COL2_NEW) INTO 10 BUCKETS; INSERT INTO TABLE TEST_HIVE_BUCKETS_AGAIN PARTITION (eff_dt) Select 'TEST_COL1-1', 'TEST_COL1', from_unixtime(unix_timestamp('20170101081559999', 'yyyyMMddHHmmssSSS')); INSERT INTO TABLE TEST_HIVE_BUCKETS_AGAIN PARTITION … PARTITIONED BY (country string, gps_date date) ALTER TABLE commands modifying columns are not supported. k. 1. CDH5.7.2 There should be two tables defined on the same data: delta_table_for_db: Defined on the data location. :(. See CREATE TABLE for more details on creating partitioned tables and partitions. // Fail here to be on the safe side. I am getting the below error: Query failed (#20171118_092228_00001_888jb): Hive table is corrupt. This seems to be the same as what Hive does I do not need to insert / update using presto. Do you have any insight on this ? @theJohnnyBrown recently we hit a similar problem. Create a new table containing the result of a SELECT query. DiskPart is a command-line disk partition management tool built-in all Windows versions, such as Windows 10, Windows 8, Windows 7, which replaces its predecessor, FDISK. STORED AS parquet integer2 is the default lifetime (in seconds) for the table's partitions. For example you have a SALES table with the following structureSuppose this table contains millions of records, but all the records belong to four years only i.e. Please advise, My only requirement is to query a transnational table using Presto. This would add a range partition for a table events in the schema myschema with the lower bound 2018-01-01 (more exactly 2018-01-01T00:00:00.000) and the upper bound 2018-07-01. Lets check the partitions for the created table customer_transactions using the show partitions command in Hive. at com.facebook.presto.hive.HivePageSourceProvider.getHiveRecordCursor(HivePageSourceProvider.java:128) Sign up for a free GitHub account to open an issue and contact its maintainers and the community. This shows bucket files are not directly under Partition folder but under a sub-directory starting with delta. List all partitions in the table orders starting from the year 2013 and sort them in reverse date order: SHOW PARTITIONS FROM orders WHERE ds >= '2013-01-01' ORDER BY ds DESC ; List the most recent partitions in the table orders : 'sa' at com.facebook.presto.hive.parquet.ParquetRecordCursorProvider.createHiveRecordCursor(ParquetRecordCursorProvider.java:88) The types are incompatible and cannot be coerced. And I use the following to create an external table with presto in hive: create table hive.testschema.au1 (count bigint, matched bigint) with (format='TEXTFILE', external_location='hdfs://192.168.0.115:9000/user/bzhang/filefortable'); Following up on an old thread. @cheekoo09 The Teradata fork of Presto fixes just a compatibility issue with Hive 2.x non-transactional bucketed tables, but is still incompatible with transactional tables. Found sub-directory in bucket directory for partition: filename=adjustyou [DB Errorcode=16777244] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) you can partition a table according to some criteria . To create a Hive table with partitions, you need to use PARTITIONED BY clause along with the column you wanted to partition and its type. Thanks for your response @electrum . java.lang.IllegalArgumentException: Can not read Parquet column: [HiveColumnHandle{clientId=hive, name=gps_date, ordinalPosition=9, hiveType=date, hiveColumnIndex=-1, partitionKey=true}] We really need to make this work. Priority: Minor From this result, you can retrieve mysql server records in Presto. Templates can also be used to write generic queries that are parameterized so they can be re-used easily. I have tested it with partitioned and bucketed table, it works fine on condition that all buckets in each partition are filled. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Creating a Range-Partitioned Table. at com.facebook.presto.operator.TableScanOperator.isFinished(TableScanOperator.java:206) name varchar(64), The text was updated successfully, but these errors were encountered: Currently does not support date partitions, I've just sent a PR to fix it: Partitions in SQL Server: Creating a Partitioned Table Partitions in SQL Server: Creating a Partitioned Table. create table employee( at com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:587) Let me know if you got any work around.. show partitions in Hive table Partitioned directory in the HDFS for the Hive table at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) presto 0.152. create a bucket table in hive: hive> create table employee( id int, name varchar(64), age int) clustered by (age) into 2 buckets stored as orc tblproperties('transactional'='true'); insert 2 rows to table employee: hive> insert into employee values(1,'hdfs',28),(2,'spark',17); select from hive (OK) hive> select * from employee; the HIVE create table statement: CREATE external table DRIVERS_LOCATIONS(event_at_utc timestamp, drivergk BIGINT, latitude decimal(9,6), longitude decimal(9,6), status string, ordergk BIGINT, gps_at timestamp, bearing int) PARTITIONED BY (country string, gps_date date) STORED AS parquet LOCATION 's3://some-place/DRIVERS_LOCATIONS' The error I'm getting: presto:dev> select * from … Sign in By any chance did you find any solution for this ? @sandeep-gunnam we are also having the same issue. at com.facebook.presto.execution.TaskExecutor$PrioritizedSplitRunner.process(TaskExecutor.java:505) If you issue queries against Amazon S3 buckets with a large number of objects and the data is not partitioned, such queries may affect the GET request rate limits in Amazon S3 and lead to Amazon S3 exceptions. Note, for Presto, you can either use Apache Spark or the Hive CLI to run the following command. This is going to be the first in a series of posts about partitions. The optional WITH clause can be used to set properties on the newly created table. SELECT * FROM some_table WHERE partition_key = '{{ presto.first_latest_partition(' some_table ') }}' Templating unleashes the power and capabilities of a programming language within your SQL code. column is the name of the TIMESTAMP, DATETIME, or DATE column used to create the partitions. at com.facebook.presto.operator.Driver.processInternal(Driver.java:377) at com.facebook.presto.execution.TaskExecutor$Runner.run(TaskExecutor.java:640) The columns sale_year, sale_month, and sale_day are the partitioning columns, while their values constitute the partitioning key of a specific row. Any plans in future to support the same? Log In. The code for parsing ACID bucket structure is copied from Hive 2.3, but it should be backwards compatible with earlier Hive versions. to your account. Now we hit this road block. stores ; Analyze partitions '1992-01-01', '1992-01-02' from a Hive partitioned table sales : Thanks. Create Table Using as Command. Apart from delta directories, there is another sub-directory that is now added called “Base directory” and is named as base_ under partition/table location. clustered by (id) into 2 buckets stored as orc tblproperties('transactional'='true'); insert into employee partition(country='eg') values(1,'hfs',29),(2,'hive',28); till now this works fine From Oracle Ver. I am really looking for some help. Have a question about this project? @richardxin .. we are also facing the same issue while using presto+hive. In Athena, a table and its partitions must use the same data formats but their schemas may differ. using hive parquet table with date partition. The following example creates a table of four partitions, one for each quarter of sales. Analyze table stores in catalog hive and schema default: ANALYZE hive . I believe Teradata distribution for Presto has fixed this issue. Use the following psql command, we can create the customer_address table in the public schema of the shipping database. Is there a ticket open to solve this issue? On the Select a Partitioning Column page, in the Available partitioning columns grid, select the column on which you want to partition your table. name string, city string, employee_id int ) PARTITIONED BY (year STRING, month STRING, day STRING) CLUSTERED BY (employee_id) INTO 256 BUCKETS. Per Node: 0.0 parallelism, 0 rows/s, 0B/s Sign in For example, to create a partitioned table execute the following: CREATE TABLE orders (order_date VARCHAR, order_region VARCHAR, order_id BIGINT, order_info VARCHAR) WITH (partitioned_by = ARRAY['order_date', 'order_region']) I've also experienced this issue with Hive 1.x and Presto 0.155. To turn this off set hive.exec.dynamic.partition.mode=nonstrict. This is the exception thrown in the BackgroundHiveSplitLoader. https://teradata.github.io/presto/docs/current/release/release-0.167-t.html#bugs-fixed. drivergk BIGINT, See: Alternative to FDISK Format Tool - MiniTool Partition Wizard. The VALUES LESS THAN clause determines the partition bound: rows with partitioning key values that compare less than the ordered list of values specified by the clause are stored in the partition. I think it is related to the directory structure expected by Presto for bucketed tables. Now a days enterprises run databases of hundred of Gigabytes in size. at com.facebook.presto.spi.classloader.ClassLoaderSafeConnectorPageSourceProvider.createPageSource(ClassLoaderSafeConnectorPageSourceProvider.java:43) does presto support date fields partitions? insert in partition table should fail from presto side but insert into select * in passing in partition table with single column partition table from presto side. These databases are known as Very Large Databases (VLDB). Example 4-1 creates a table of four partitions, one for each quarter of sales.time_id is the partitioning column, while its values constitute the partitioning key of a specific row. You signed in with another tab or window. @jsavolainen Is there any other solution to this problem ? When creating a composite partitioned table, you use the PARTITION and SUBPARTITION clauses of the CREATE TABLE SQL statement.. To create a composite partitioned table, you start by using the PARTITION BY {HASH | RANGE [INTERVAL]| LIST} clause of a CREATE TABLE statement. The optional IF NOT EXISTS clause causes the error to be suppressed if the table already exists. Over time, the schemas may start to differ. bearing int Splits: 20 total, 4 done (20.00%) What Is Diskpart. to your account, hive version: 1.1.0 CREATE TABLE AS is not supported. Will your solution work : https://github.com/jsavolainen/presto/tree/hive-acid ? If INCLUDING PROPERTIES is specified, all of the table properties are copied to the new table. Multiple LIKE clauses may be specified, which allows copying the columns from multiple tables.. The LIKE clause can be used to include all the column definitions from an existing table in the new table. }. at com.facebook.presto.hive.HivePageSourceProvider.createPageSource(HivePageSourceProvider.java:106) CREATE TABLE mytable (. We will like to handle data restatements and SCDs using Hive transactional tables and are looking for alternatives. In the Create Partition Wizard, on the Welcome to the Create Partition Wizard page, click Next. Let’s say you have a table. Sorted bucketed tables are not supported for writes. For more information, see Table Location and Partitions.. Like Hive and Presto, we can create the table programmatically from the command line or interactively; I prefer the programmatic approach. @cheekoo09, yes, that works for reading transactional tables but it can can cause unexpected query results or failures, so I would think twice before using it in production. if (isDirectory(next)) { The int part specifies the data type of the column used for partitioning. Call this table delta_table_for_presto. Table partitioning can apply to any supported encoding, e.g., csv, Avro, or Parquet. Partitions may have their own indexes, constraints and default values, distinct from those of other partitions. Below is the particular code in Presto that is causing the exception Let's wait for the review, and you could ask EMR to backport this PR. The column 'rating' in table 'DB.TEST1_PARTITIONED' is declared as type 'decimal(3,1)', but partition 'day=01' declared column 'rating' as … ) PARTITIONED BY (country String) com.facebook.presto.spi.PrestoException: There is a mismatch between the table and partition schemas. Insert records into partitioned table in Hive Show partitions in Hive. status string, Use CREATE TABLE AS to create a table with data. We’ll occasionally send you account related emails. Appreciate it. longitude decimal(9,6), but if I added one bucket in another partition. ) We are creating hive transnational tables for the first time in our application but Presto 0.189 doesn't seem to have support for querying transnational tables. I haven't seen any progress on this one, it seems that the ticket was closed as "NO_FIX" due to lack of demand. Has there been any update on transaction table support? Presto does not support ORC transactional tables. Query presto:tutorials> create table mysql.tutorials.sample as select * from mysql.tutorials.author; Result CREATE TABLE: 3 rows Indexes must be created separately for each partition. Or has it been solved already in a more recent version of Presto? 1991, 1992, 1993 and 1994. default . Full read support would be much more complicated to implement. at com.facebook.presto.operator.Driver.processFor(Driver.java:303) When you create a new partition, that partition usually inherits the schema of the table. XML Word Printable JSON. The next step is to create an external table in the Hive Metastore so that Presto (or Athena with Glue) can read the generated manifest file to identify which Parquet files to read for reading the latest snapshot of the Delta table. Presto-0.206 1.CREATE table with partitioned_by, then insert data, queries partitions works 2.CREATE table with external_location and partitioned_by (map to existing data with partitions), then queries partitions does not work, I checked the hive metastore, there is no partitions meta for external table. http://ip-10-100-144-234.eu-west-1.compute.internal:8889/v1/query/20151008_113848_00032_wjqrm?pretty. Using partitioning(partitioned_by) or bucketing(bucketed_by) columns are not supported in CREATE TABLE. By clicking “Sign up for GitHub”, you agree to our terms of service and Both INSERT and CREATE statements support partitioned tables. 2019-02-02 . Export. http://ip-10-100-144-234.eu-west-1.compute.internal:8889/v1/query/20151008_113848_00032_wjqrm?pretty It is declared as being bucketed, but the files do not match the bucketing declaration. #3791 The default is DAY if time_partitioning_type is unspecified. Transactional tables haven't really caught on, and without the demand, it is unlikely that anyone will implement support for them. @av-416, Can you suggest any work around this? Create a Partition Function. The comment in above code looks stale because hive does not have a problem with this directory structure. Use CREATE TABLE to create an empty table. CREATE external table DRIVERS_LOCATIONS( at com.facebook.presto.operator.TableScanOperator.createSourceIfNecessary(TableScanOperator.java:258) gps_at timestamp, Hey I'm using AWS EMR distribution of presto (version 0.119) and when trying to read data from a hive parquet table which has date type partition I'm getting an error (see below), when advised with aws support they said I need to change the partition filed type to string instead of date. This utility enables users to perform many disk and partition operations. Details. age int Presto can use DELETE on partitions using DELTE FROM table WHERE date=value; Also possible to create empty partitions upfront CALL system.create_empty_partition; See here for more details: https://www.educba.com/partitioning-in-hive/ In this week’s pull request https://github.com/trinodb/trino/pull/223, came from contributor Hao Luo. Presto has supported bucketed tables for both read an write for a long time now. name varchar(64), at java.lang.Thread.run(Thread.java:745). LOCATION 's3://some-place/DRIVERS_LOCATIONS'. The path of the data encodes the partitions and their values. ordergk BIGINT, We have the same usecase and planning to go to production with this. id int, Have a question about this project? Thanks for your response Dain. throw new PrestoException(HIVE_INVALID_BUCKET_FILES, format("%s Found sub-directory in bucket directory for partition: %s", CORRUPT_BUCKETING, hiveFileIterator.getPartitionName())); Next, you specify a SUBPARTITION BY clause that follows similar syntax and rules as the PARTITION BY clause. Are there plans to support Hive ACID tables in Presto? Please check https://github.com/jsavolainen/presto/tree/hive-acid for an experimental support for reading Hive ACID tables. But the BackgroundHiveSplitLoader is expecting the form TABLE DIR > BUCKET DIRS, which is the traditional form for non ACID bucketed tables. Mysql connector doesn’t support create table query but you can create a table using as command. 8.0 Oracle has provided the feature of table partitioning i.e. https://github.com/jsavolainen/presto/tree/hive-acid. Has anyone been able to resolve this issue? Type: Bug Status: Open. You signed in with another tab or window. event_at_utc timestamp, Create a new, empty table with the specified columns. Already on GitHub? latitude decimal(9,6), Create another table only for Presto or Athena using the manifest location. TABLE DIR > BASE OR DELTA DIR > BUCKET DIRS. Reasons include: For the ACID bucketed table you would have a folder structure like: presto:dev> select * from drivers_locations_test limit 10; Query 20151008_113848_00032_wjqrm, FAILED, 10 nodes The optional IF NOT EXISTS clause causes the error to be suppressed if the table already exists. In our case we have an int partition named hour and when we query from Presto, say for hour=1, we don't get any rows because the partition hour=1 didn't exist in the metastore while hour=01 did. It is not possible to turn a regular table into a partitioned table … Use the sql statement SHOW CREATE TABLE to query the existing range partitions (they are shown in the table property range_partitions). presto 0.152. id int, If the table is partitioned, call MSCK REPAIR TABLE delta_table_for_presto. ok, so it seems that Impala doesn't support bucket table either. Successfully merging a pull request may close this issue. Procedures# system.create_empty_partition(schema_name, table_name, partition_columns, partition_values) Create an empty partition in the specified table. CREATE PARTITION FUNCTION MoviesPartitionFunction (int) AS RANGE LEFT FOR VALUES (1, 100, 1000); GO. unit_time is either DAY, HOUR, MONTH, or YEAR, based on the desired time-unit partitioning granularity. age int If you query a partitioned table and specify the partition in the WHERE clause, Athena scans the data only from that partition. privacy statement. 1 statement failed. CPU Time: 0.0s total, 0 rows/s, 0B/s, 33% active ) clustered by (age) into 2 buckets stored as orc tblproperties('transactional'='true'); The text was updated successfully, but these errors were encountered: Have you configured this: set hive.enforce.bucketing = true? Could you please suggest any workaround for this problem for the moment. Insert to bucketed and sorted Hive table produces not sorted files on file system. Delta Directory: This type is created for the results of INSERT statements and is named delta__ under partition/table location. By clicking “Sign up for GitHub”, you agree to our terms of service and This type of directory is created by INSERT OVERWRITE TABLE query or by major compaction … Does presto can't be compatible with hive bucket table ? Next we create a partition function called MoviesPartitionFunction that will partition the table into four partitions. privacy statement. at com.facebook.presto.split.PageSourceManager.createPageSource(PageSourceManager.java:48) The optional WITH clause can be used to set properties on the newly created table or on single columns. To better understand how partitioning and bucketing works, please take a look at how data is stored in hive. When a ACID table is created in hive the folder structure is "PARTITION/delta_xxxx/bucket_xxx". 0:01 [0 rows, 0B] [0 rows/s, 0B/s], Query 20151008_113848_00032_wjqrm failed: Can not read Parquet column: [HiveColumnHandle{clientId=hive, name=gps_date, ordinalPosition=9, hiveType=date, hiveColumnIndex=-1, partitionKey=true}] If this sounds about right, I can take a look into this. Let’s create a partition table and load the CSV file into it. insert into employee partition(country='sa') values(3,'avro',32); We’ll occasionally send you account related emails. Already on GitHub? Parallelism: 0.0 this will throw the same exception, so make sure the table is partitioned and if ORC bucketed, make sure each partition has all buckets, I don't know how to manage this logic yet in my project. Currently this ACID support is limited to delta files with INSERT-only statements. Presto does not support transactional Hive tables.
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