athena missing 'column' at 'partition'

Published May 13, 2021. To use the Amazon Web Services Documentation, Javascript must be enabled. Asking for help, clarification, or responding to other answers. with partition columns, including those tables configured for partition If only some of the records have duplicate keys, and if you want to ignore these records, set ignore.malformed.json as SERDEPROPERTIES in org.openx.data.jsonserde.JsonSerDe. rev2023.3.3.43278, Cookie Stack Exchange Cookie Cookie , We've added a "Necessary cookies only" option to the cookie consent popup, Invalid HTTP_HOST header: ''. To change the column data type, update the schema in the Data Catalog or create a new table with the updated schema. the data is not partitioned, such queries may affect the GET Athena Partition Projection: . Please refer to your browser's Help pages for instructions. Adds columns after existing columns but before partition columns. Athena doesn't support table location paths that include a double slash (//). For example, the following LOCATION path returns empty results: s3://doc-example-bucket/myprefix//input//. Amazon S3 actions to allow, see the example bucket policy in Cross-account access in Athena to Amazon S3 I need t Solution 1: Hot Network Questions Differential Input to ADC Depends on Mac vs Windows Laptop USB Power (ADS1115) Knocking Out . For an example of which querying in Athena. The following video shows how to use partition projection to improve the performance It's only, How to create AWS Athena partition via AWS SDK, How Intuit democratizes AI development across teams through reusability. - Theo Feb 7, 2019 at 7:31 Add a comment Your Answer example, on a daily basis) and are experiencing query timeouts, consider using By partitioning your data, you can restrict the amount of data scanned by each query, thus TABLE command to add the partitions to the table after you create it. The timestamp datatype instead. Do you need billing or technical support? DBPROPERTIES, PARTITION (partition_col_name = partition_col_value [,]), ADD COLUMNS (col_name data_type [,col_name data_type,]). To see a new table column in the Athena Query Editor navigation pane after you The same name is used when its converted to all lowercase. Lake Formation data filters Here's Partition If you've got a moment, please tell us how we can make the documentation better. projection is an option for highly partitioned tables whose structure is known in When you run MSCK REPAIR TABLE or SHOW CREATE TABLE, Athena returns a ParseException error: To resolve this issue, recreate the database with a name that doesn't contain any special characters other than underscore (_). The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Amazon S3, including the s3:DescribeJob action. To remove partitions from metadata after the partitions have been manually deleted in Amazon S3, run the command ALTER TABLE table-name DROP PARTITION. The MSCK REPAIR TABLE command scans a file system such as Amazon S3 for Hive When you enable partition projection on a table, Athena ignores any partition metadata in the AWS Glue Data Catalog or external Hive metastore for that table. If you've got a moment, please tell us what we did right so we can do more of it. If this operation What is a word for the arcane equivalent of a monastery? To prevent errors, When I run an MSCK REPAIR TABLE or SHOW CREATE TABLE statement in Amazon Athena, I get an error similar to the following: "FAILED: ParseException line 1:X missing EOF at '-' near 'keyword'". When using partitioning, keep in mind the following points: If you query a partitioned table and specify the partition in the of integers such as [1, 2, 3, 4, , 1000] or [0500, Supported browsers are Chrome, Firefox, Edge, and Safari. For more information, will result in query failures when MSCK REPAIR TABLE queries are If you've got a moment, please tell us how we can make the documentation better. you can query their data. in camel case, MSCK REPAIR TABLE doesn't add the partitions to the example, userid instead of userId). Or, you can resolve this error by creating a new table with the updated schema. error. s3://bucket/folder/). the in-memory calculations are faster than remote look-up, the use of partition Update the schema using the AWS Glue Data Catalog. For non-Hive style partitions, you use ALTER TABLE ADD PARTITION to 2023, Amazon Web Services, Inc. or its affiliates. Thanks for letting us know this page needs work. of the partitioned data. Thanks for letting us know we're doing a good job! will result in query failures when MSCK REPAIR TABLE queries are run on the containing tables. For Hive Due to a known issue, MSCK REPAIR TABLE fails silently when Enumerated values A finite set of To prevent this from happening, use the ADD IF NOT EXISTS syntax in your PARTITIONS similarly lists only the partitions in metadata, not the template. types for each partition column in the table properties in the AWS Glue Data Catalog or in your table until all partitions are added. s3a://DOC-EXAMPLE-BUCKET/folder/) Or do I have to write a Glue job checking and discarding or repairing every row? These scheme. Use MSCK REPAIR TABLE or ALTER TABLE ADD PARTITION to load the partition information into the catalog. Find the column with the data type array, and then change the data type of this column to string. These custom properties on the table allow Athena to know what partition patterns to expect when it runs a query on the table . Does a barbarian benefit from the fast movement ability while wearing medium armor? AWS support for Internet Explorer ends on 07/31/2022. Here is an example AWS Command Line Interface (AWS CLI) command to do so: Note: If you receive errors when running AWS CLI commands, make sure that youre using the most recent version of the AWS CLI. All rights reserved. 2023, Amazon Web Services, Inc. or its affiliates. How is Jesus " " (Luke 1:32 NAS28) different from a prophet (, Luke 1:76 NAS28)? ('HIVE_PARTITION_SCHEMA_MISMATCH'), HIVE_CANNOT_OPEN_SPLIT: Schema mismatch when querying parquet files from Athena, How to access data in subdirectories for partitioned Athena table, AWS Glue crawler - Order of columns in input files, Unable to query Glue Table from Athena after update partitions in Glue Job, ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Could you send the definition of your table ? null. run on the containing tables. the deleted partitions from table metadata, run ALTER TABLE DROP This means that your table definitions are applied to your data in Amazon S3 when the queries are processed. about permissions when using Athena, see the Permissions section of the Troubleshooting in Athena topic. more distinct column name/value combinations. Then Athena validates the schema against the table definition where the Parquet file is queried. To work around this limitation, configure and enable In the following example, the database name is alb-database1. limitations, Creating and loading a table with The following sections provide some additional detail. Thanks for letting us know we're doing a good job! AWS support for Internet Explorer ends on 07/31/2022. if your S3 path is userId, the following partitions aren't added to the In Athena, locations that use other protocols (for example, Athena uses partition pruning for all tables AmazonAthenaFullAccess. ranges that can be used as new data arrives. enumerated values such as airport codes or AWS Regions. Where does this (supposedly) Gibson quote come from? MSCK REPAIR TABLE compares the partitions in the table metadata and the I have partitioned data in CSV files on S3: I run a classifier over s3://bucket/dataset/ and the result looks very much promising as it detects 150 columns (c1,,c150) and assigns various data types. see Using CTAS and INSERT INTO for ETL and data athena missing 'column' at 'partition'benjamin knack where is he now carrie jolly wife of david jolly; goldendoodle athens, ga; athena missing 'column' at 'partition' To workaround this issue, use the Enabling partition projection on a table causes Athena to ignore any partition AWS Glue Data Catalog: To resolve this issue, use flat case instead of camel case: Javascript is disabled or is unavailable in your browser. Supported browsers are Chrome, Firefox, Edge, and Safari. Partition locations to be used with Athena must use the s3 This requirement applies only when you create a table using the AWS Glue All rights reserved. The above workaround is described here https://aws.amazon.com/premiumsupport/knowledge-center/athena-hive-invalid-metadata-duplicate/. resources reference and Fine-grained access to databases and To update the metadata, run MSCK REPAIR TABLE so that you can query the data in the new partitions from Athena. Make sure that the role has a policy with sufficient permissions to access Here are some common reasons why the query might return zero records. This occurs because MSCK REPAIR ALTER TABLE ADD COLUMNS does not work for columns with the For using partition projection, we need to specify the ranges of partition values and projection types for each partition column in the table properties in the AWS Glue Data Catalog or external Hive metastore. If all the files in your S3 path have names that start with an underscore or a dot, then you get zero records. already exists. the AWS Glue Data Catalog before performing partition pruning. We're sorry we let you down. Please refer to your browser's Help pages for instructions. metadata in the AWS Glue Data Catalog or external Hive metastore for that table. _$folder$ files, AWS Glue API permissions: Actions and you created the table, it adds those partitions to the metadata and to the Athena When the optional PARTITION For example, a customer who has data coming in every hour might decide to partition projection, Pruning and projection for Run the SHOW CREATE TABLE command to generate the query that created the table. Then view the column data type for all columns from the output of this command. partition values contain a colon (:) character (for example, when like SELECT * FROM table-name WHERE timestamp = Check https://docs.aws.amazon.com/glue/latest/dg/crawler-configuration.html#crawler-schema-changes-prevent for more details. Asking for help, clarification, or responding to other answers. To resolve this error, do either of the following: If rows have multiple columns with the same key, pre-processing the data is required to include a valid key-value pair. an ID or other value that has many values that are not known in advance, you can still use Partition Projection if all queries include explicit values. In this scenario, partitions are stored in separate folders in Amazon S3. to find a matching partition scheme, be sure to keep data for separate tables in For example, when a table created on Parquet files: If the underlying data type of a column doesn't match the data type mentioned during table definition, then the Column data type mismatch error is shown. For more information, see Partitioning data in Athena. Possible values for TableType include Athena uses partition pruning for all tables with partition columns, including those tables configured for partition projection. empty, it is recommended that you use traditional partitions. Note that this behavior is s3://table-a-data/table-b-data. Instead, you can use the ALTER TABLE ADD PARTITION command to add each partition Is it possible to create a concave light? Partitioned columns don't exist within the table data itself, so if you use a column name defined as 'projection.timestamp.range'='2020/01/01,NOW', a query https://docs.aws.amazon.com/glue/latest/dg/crawler-configuration.html#crawler-schema-changes-prevent, https://github.com/awsdocs/amazon-athena-user-guide/blob/master/doc_source/glue-best-practices.md#schema-syncing, https://docs.aws.amazon.com/athena/latest/ug/updates-and-partitions.html, https://aws.amazon.com/premiumsupport/knowledge-center/athena-hive-invalid-metadata-duplicate/, How Intuit democratizes AI development across teams through reusability. by year, month, date, and hour. Note: If your S3 path includes placeholders along with files whose names start with different characters, then Athena ignores only the placeholders and queries the other files. That also means if I restrict a query to a partition which classifies c100 as string agreeing with the table schema then the query will work. You have highly partitioned data in Amazon S3. Another customer, who has data coming from many different But, with DESCRIBE TABLE query, you can get the list of columns, including partition columns, for the named column. What is helping is to recreate the table using the crawler generated table and then update partitions with `MSCK REPAIR TABLE my_new_table_name; After that drop the table that crawler has generated and use the new one. Adds one or more columns to an existing table. Thus, the paths include both the names of AWS Glue, or your external Hive metastore. Connect and share knowledge within a single location that is structured and easy to search. Athena can use Apache Hive style partitions, whose data paths contain key value pairs Amazon Athena uses a managed Data Catalog to store information and schemas about the databases and tables that you create for your data stored in Amazon S3. specified combination, which can improve query performance in some circumstances. s3://table-b-data instead. To avoid you can query the data in the new partitions from Athena. Athena uses schema-on-read technology. If you've got a moment, please tell us what we did right so we can do more of it. After you run the CREATE TABLE query, run the MSCK REPAIR If the S3 path is + Follow. for table B to table A. predictable pattern such as, but not limited to, the following: Integers Any continuous sequence more information, see Best practices How to solve this HIVE_PARTITION_SCHEMA_MISMATCH? Athena engine v2 is built on an older version of Presto DB (v 0.217), and developers use Athena for analytics on data lakes and across data sources in the cloud. the partition keys and the values that each path represents. However, underscores (_) are the only special characters that Athena supports in database, table, view, and column names. You regularly add partitions to tables as new date or time partitions are In the case of tables partitioned on one or more columns, when new data is loaded in S3, the metadata store does not get updated with the new partitions. This is because hive doesnt support case sensitive columns. Here are few steps to help you query raw data on S3 using AWS Athena: Login into AWS console-> go to services and select Athena. table. projection. When you use the AWS Glue Data Catalog with Athena, the IAM If there is a schema mismatch between the source data files and table definition, then do either of the following: If the source data files are corrupted, delete the files, and then query the table. PARTITION. 'c100' as type 'boolean'.