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    MaxCompute:SHOW

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    MaxCompute:SHOW

    Last Updated:Sep 20, 2023

    This topic describes how to use SHOW commands in different operations.

    The following table describes the usage of SHOW commands in different operations.

    Section

    Description

    SET operations

    View the properties that you configured by using the SET command.

    Tunnel operations

    View the commands that are used to upload or download data or the logs of the upload or download operations.

    Security operations

    View the security configuration properties of a project.

    Package operations

    View the packages that are created or installed in a MaxCompute project.

    Backup operations

    • View the information about tables in a project and tables in the backup state. You can view information such as table names, table IDs, creation time, and deletion time.

    • View the backup data of a specified table and obtain information about data versions within the retention period.

    • View the backup data of a deleted table and obtain information about data versions within the retention period.

    • View the backup data of a specified partition and obtain information about data versions within the retention period.

    • View the backup data of a deleted partition and obtain information about data versions within the retention period.

    Table operations

    • View the CREATE TABLE statement.

    • View all objects or objects that meet specific rules in a project. The objects include tables, external tables, views, and materialized views.

    • View all external tables or external tables that meet specific rules in a project.

    • View all views or views that meet specific rules in a project.

    • View all materialized views or materialized views that meet specific rules in a project.

    • View all the partitions of a table.

    Function operations

    • View all user-defined functions (UDFs) in a MaxCompute project.

    • View all built-in functions or built-in functions that meet specific rules in a MaxCompute project.

    Instance operations

    View the information about an instance. The information includes StartTime (accurate to the second), RunTime (in seconds), Status, InstanceID, Owner, and Query (query statement).

    Permission query operations

    Query the permissions of users or roles and permissions on objects.

    Operations that can be performed to collect information about the optimizer of MaxCompute

    Test collection results of column stats metrics.

    SET operations

    Displays the properties that you configured by using the SET statement. Syntax:

    show flags;
    Note

    For more information about SET operations, see SET operations.

    Tunnel operations

    • Displays historical records.
      • Syntax
        tunnel show history [-n <number>];

        -n <number>: specifies the number of times that the command is executed.

      • Examples
        Example 1: Display history records. By default, 500 data records are saved. 
        tunnel show history;
        The following result is returned:
        20230505xxxxxxxxxxxxxx0b0d5b3c  bad     'upload d:\data.txt sale_detail/sale_date=201312,region=hangzhou -dbr true -time true'
20230505xxxxxxxxxxxxxx0ad720a3  failed  'upload d:\data.txt sale_detail/sale_date=201312,region=hangzhou -time true'
20230505xxxxxxxxxxxxxx0ad5ca68  bad     'upload d:\data.txt sale_detail/sale_date=201312,region=hangzhou -dbr true'
......
        Example 2: Display the commands used in the last five data uploads or downloads. 
        tunnel show history -n 5;
        The following result is returned:
        20230505xxxxxxxxxxxxxx0aa48c4b  success 'download sale_detail/sale_date=201312,region=hangzhou result.txt'
20230505xxxxxxxxxxxxxx0aa6165c  success 'download sale_detail/sale_date=201312,region=hangzhou result.txt'
20230505xxxxxxxxxxxxxx0af11472  failed  'upload d:\data.txt sale_detail/sale_date=201312,region=hangzhou -s false'
20230505xxxxxxxxxxxxxx0b464374  success 'upload d:\data.txt sale_detail/sale_date=201312,region=hangzhou -s false'
20230505xxxxxxxxxxxxxx02dbb6bd  failed  'upload d:\data.txt sale_detail/sale_date="201312",region="hangzhou" -s false'
    • Displays the logs of the last data upload or download. 
      tunnel show log;
    Note

    For more information about Tunnel commands, see Tunnel commands.

    Security operations

    Views the security configuration properties of the current project.

    Note

    For more information about security operations, see Security operations.

    Package operations

    A package creator views the packages that are created or installed in a MaxCompute project.

    • Syntax

      show packages;

    • Examples

      View the information about the packages that are created or installed in the test_project_a project. Sample command: 

      -- View packages. 
show packages;

      The returned result contains the following information:

      • PackageName: the name of the package that is created or installed.

      • CreateTime: the time when the package is created.

      • SourceProject: the name of the MaxCompute project to which the package belongs.

      • InstallTime: the time when the package is installed.

      • Status: the status of the package.

      +-------------+--------------------------+
| PackageName | CreateTime               |
+-------------+--------------------------+
| datashare   | 2021-12-28T18:10:39+0800 |
+-------------+--------------------------+
+-------------+--------------------+--------------------------+--------+
| PackageName | SourceProject      | InstallTime              | Status |
+-------------+--------------------+--------------------------+--------+
| systables   | information_schema | 2020-11-24T14:11:23+0800 | OK     |
+-------------+--------------------+--------------------------+--------+
    Note

    For more information about package operations, see Cross-project resource access based on packages.

    Backup operations

    • View the information about tables including deleted tables in a project and tables in the backup state. You can filter the tables by table name. Sample command:

      show history for tables [like <table_name>];

    • View the backup data of a specified table and obtain information about data versions within the retention period. 

      show history for table <table_name>;

    • View the backup data of a deleted table and obtain information about data versions within the retention period. 

      show history for table table_name ('id'='xxxx');

    • View the backup data of a specified partition and obtain information about data versions within the retention period. 

      show history for table table_name partition_spec;

    • View the backup data of a deleted partition and obtain information about data versions within the retention period. You can obtain the value of id from the ObjectId field in the output of the show history for table <table_name>; command. 

      show history for table table_name PARTITION('id'='xxxx');

    For more information about backup and restoration commands, see Backup and restoration.

    Table operation

    • View the CREATE TABLE statement.

      • Syntax

        show create table <table_name>;

      • Parameters

        table_name: required. The name of the table for which you want to view the CREATE TABLE statement.

      • Examples

        -- View the CREATE TABLE statement that is used to create the sale_detail table. 
show create table sale_detail;

        The following result is returned: 

        CREATE TABLE IF NOT EXISTS doc_test_dev.sale_detail(shop_name STRING,customer_id STRING,total_price DOUBLE) PARTITIONED BY (sale_date STRING,region STRING) STORED AS ALIORC;

    • View all objects or objects that meet specific rules in a project. The objects include tables, external tables, views, and materialized views.

      • Syntax

        -- View all objects or objects that meet specific rules in a project. The objects include tables, external tables, views, and materialized views. 
show tables;
-- View the tables, external tables, views, and materialized views whose names match the condition specified by chart in a project. 
show tables like '<chart>';

      • Examples

        -- View the tables, external tables, views, and materialized views whose names match the sale* keyword in a project. The asterisk (*) indicates any character. 
show tables like 'sale*';

        The following result is returned: 

        ALIYUN$account_name:sale_detail
......
-- ALIYUN is a system prompt, which indicates that the table is created by using an Alibaba Cloud account. If the table was created by a RAM user, the system prompt is RAM.

    • View all external tables or external tables that meet specific rules in a project.

      • Syntax

        -- View all external tables in a project. 
show external tables;
-- View the external tables whose names match the condition specified by external_chart in a project. 
show external tables like '<external_chart>';

      • Examples

        -- View the external tables whose names match the a* keyword in a project. The asterisk (*) indicates any character. 
show external tables like 'a*';

        The following result is returned: 

        ALIYUN$account_name:a_et
......
-- ALIYUN is a system prompt, which indicates that the table is created by using an Alibaba Cloud account. If the table was created by a RAM user, the system prompt is RAM.

      Note

      Only MaxCompute client (odpscmd) V0.43.0 or later allows you to run the show external tables; command.

    • View all views or the views that meet specific rules in a project.

      • Syntax

        -- View all views in a project. 
show views;
-- View the views whose names match the condition specified by view in a project. 
show views like '<view>';

      • Examples

        -- View the views whose names match the mf* keyword in a project. The asterisk (*) indicates any character. 
show views like 'mf*';

        The following result is returned: 

        ALIYUN$account_name:mf_v
......
-- ALIYUN is a system prompt, which indicates that the table is created by using an Alibaba Cloud account. If the table was created by a RAM user, the system prompt is RAM.

      Note

      Only MaxCompute client (odpscmd) V0.43.0 or later allows you to run the show views; command.

    • View all materialized views or the materialized views that meet specific rules in a project.

      • Syntax

        -- View all materialized views in a project. 
show materialized views;
-- View the materialized views whose names match the condition specified by materialized_view in a project. 
show materialized views like '<materialized_view>';

      • Examples

        -- View the materialized views whose names match the test* keyword in a project. The asterisk (*) indicates any character. 
show materialized views like 'test*';

        The following result is returned: 

        ALIYUN$account_name:test_two_mv
ALIYUN$account_name:test_create_one_mv
......
-- ALIYUN is a system prompt, which indicates that the table is created by using an Alibaba Cloud account. If the table was created by a RAM user, the system prompt is RAM.

      Note

      Only MaxCompute client (odpscmd) V0.43.0 or later allows you to run the show materialized views; command.

    • View all the partitions of a table. If the table does not exist or the table is a non-partitioned table, an error is returned.

      • Syntax

        show partitions <table_name>;

      • Parameters

        table_name: required. The name of the partitioned table whose partition information you want to view.

      • Examples

        -- Display all the partitions of the sale_detail table. 
show partitions sale_detail;

        The following result is returned: 

        sale_date=201310/region=beijing
sale_date=201312/region=shenzhen
sale_date=201312/region=xian
sale_date=2014/region=shenzhen

OK
    Note

    For more information about table operations, see Table operations.

    Function operations

    • View the information of all UDFs in a MaxCompute project.

      • Syntax You can use one of the following syntaxes to view all UDFs in a MaxCompute project: 

        • list functions [-p <project_name>];
        • show functions;

      • Parameters

        project_name: optional. The name of a MaxCompute project.

      • Example

        list functions;

        The following result is returned: 

        Name              Owner                                        Create Time           Class                             Resources
ipv4_ipv6_aton    ALIYUN$****@aliyun.com 2021-11-15 13:42:14   com.aliyun.odps.udf.udfFunction.IpLocation ipv4.txt,ipv6.txt,udf-1.0-SNAPSHOT.jar
Lower_test        ALIYUN$****@aliyun.com 2021-08-25 15:51:22   com.aliyun.odps.udf.example.Lower udf-1.0-SNAPSHOT.jar
my_add            ALIYUN$****@aliyun.com 2021-05-08 11:26:02
my_index          ALIYUN$****@aliyun.com 2021-08-25 12:01:05   com.aliyun.odps.examples.udf.UdfArray udf-1.0-SNAPSHOT.jar
my_sum            ALIYUN$****@aliyun.com 2021-05-08 10:24:58
my_udtf           ALIYUN$****@aliyun.com 2021-02-23 11:37:30   com.aliyun.odps.examples.udf.UDTFResource udf-1.0-SNAPSHOT.jar
numpy             ALIYUN$****@aliyun.com 2020-11-11 14:12:50   numpy.TryImport                   numpy.py,numpy-1.19.4-cp37-cp37m-manylinux1_x86_64.zip
ST_Aggr_ConvexHull ALIYUN$****@aliyun.com 2021-03-18 17:06:29   com.esri.hadoop.hive.ST_Aggr_ConvexHull esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Aggr_Intersection ALIYUN$****@aliyun.com 2021-03-18 17:06:29   com.esri.hadoop.hive.ST_Aggr_Intersection esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Aggr_Union     ALIYUN$****@aliyun.com 2021-03-18 17:06:30   com.esri.hadoop.hive.ST_Aggr_Union esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Area           ALIYUN$****@aliyun.com 2021-03-18 17:06:30   com.esri.hadoop.hive.ST_Area      esri-geometry-api.jar,spatial-sdk-hive.jar
ST_AsBinary       ALIYUN$****@aliyun.com 2021-03-18 17:06:30   com.esri.hadoop.hive.ST_AsBinary  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_AsGeoJson      ALIYUN$****@aliyun.com 2021-03-18 17:06:49   com.esri.hadoop.hive.ST_AsGeoJson esri-geometry-api.jar,spatial-sdk-hive.jar
ST_AsJson         ALIYUN$****@aliyun.com 2021-03-18 17:06:50   com.esri.hadoop.hive.ST_AsJson    esri-geometry-api.jar,spatial-sdk-hive.jar
ST_AsShape        ALIYUN$****@aliyun.com 2021-03-18 17:06:50   com.esri.hadoop.hive.ST_AsShape   esri-geometry-api.jar,spatial-sdk-hive.jar
ST_AsText         ALIYUN$****@aliyun.com 2021-03-18 17:06:50   com.esri.hadoop.hive.ST_AsText    esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Bin            ALIYUN$****@aliyun.com 2021-03-18 17:06:50   com.esri.hadoop.hive.ST_Bin       esri-geometry-api.jar,spatial-sdk-hive.jar
ST_BinEnvelope    ALIYUN$****@aliyun.com 2021-03-18 17:07:01   com.esri.hadoop.hive.ST_BinEnvelope esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Boundary       ALIYUN$****@aliyun.com 2021-03-18 17:07:01   com.esri.hadoop.hive.ST_Boundary  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Buffer         ALIYUN$****@aliyun.com 2021-03-18 17:07:01   com.esri.hadoop.hive.ST_Buffer    esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Centroid       ALIYUN$****@aliyun.com 2021-03-18 17:07:01   com.esri.hadoop.hive.ST_Centroid  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Contains       ALIYUN$****@aliyun.com 2021-03-18 17:07:01   com.esri.hadoop.hive.ST_Contains  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_ConvexHull     ALIYUN$****@aliyun.com 2021-03-18 17:07:13   com.esri.hadoop.hive.ST_ConvexHull esri-geometry-api.jar,spatial-sdk-hive.jar
ST_CoordDim       ALIYUN$****@aliyun.com 2021-03-18 17:07:14   com.esri.hadoop.hive.ST_CoordDim  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Crosses        ALIYUN$****@aliyun.com 2021-03-18 17:07:14   com.esri.hadoop.hive.ST_Crosses   esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Difference     ALIYUN$****@aliyun.com 2021-03-18 17:07:14   com.esri.hadoop.hive.ST_Difference esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Dimension      ALIYUN$****@aliyun.com 2021-03-18 17:07:14   com.esri.hadoop.hive.ST_Dimension esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Disjoint       ALIYUN$****@aliyun.com 2021-03-18 17:07:31   com.esri.hadoop.hive.ST_Disjoint  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Distance       ALIYUN$****@aliyun.com 2021-03-18 17:07:31   com.esri.hadoop.hive.ST_Distance  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_EndPoint       ALIYUN$****@aliyun.com 2021-03-18 17:07:31   com.esri.hadoop.hive.ST_EndPoint  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Envelope       ALIYUN$****@aliyun.com 2021-03-18 17:07:32   com.esri.hadoop.hive.ST_Envelope  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_EnvIntersects  ALIYUN$****@aliyun.com 2021-03-18 17:07:32   com.esri.hadoop.hive.ST_EnvIntersects esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Equals         ALIYUN$****@aliyun.com 2021-03-18 17:07:44   com.esri.hadoop.hive.ST_Equals    esri-geometry-api.jar,spatial-sdk-hive.jar
ST_ExteriorRing   ALIYUN$****@aliyun.com 2021-03-18 17:07:44   com.esri.hadoop.hive.ST_ExteriorRing esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeodesicLengthWGS84 ALIYUN$****@aliyun.com 2021-03-18 17:07:44   com.esri.hadoop.hive.ST_GeodesicLengthWGS84 esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeomCollection ALIYUN$****@aliyun.com 2021-03-18 17:07:44   com.esri.hadoop.hive.ST_GeomCollection esri-geometry-api.jar,spatial-sdk-hive.jar
ST_Geometry       ALIYUN$****@aliyun.com 2021-03-18 17:07:44   com.esri.hadoop.hive.ST_Geometry  esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeometryN      ALIYUN$****@aliyun.com 2021-03-18 17:07:55   com.esri.hadoop.hive.ST_GeometryN esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeometryType   ALIYUN$****@aliyun.com 2021-03-18 17:07:55   com.esri.hadoop.hive.ST_GeometryType esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeomFromGeoJson ALIYUN$****@aliyun.com 2021-03-18 17:07:55   com.esri.hadoop.hive.ST_GeomFromGeoJson esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeomFromJson   ALIYUN$****@aliyun.com 2021-03-18 17:07:55   com.esri.hadoop.hive.ST_GeomFromJson esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeomFromShape  ALIYUN$****@aliyun.com 2021-03-18 17:07:56   com.esri.hadoop.hive.ST_GeomFromShape esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeomFromText   ALIYUN$****@aliyun.com 2021-03-18 17:08:10   com.esri.hadoop.hive.ST_GeomFromText esri-geometry-api.jar,spatial-sdk-hive.jar
ST_GeomFromWKB    ALIYUN$****@aliyun.com 2021-03-18 17:08:10   com.esri.hadoop.hive.ST_GeomFromWKB esri-geometry-api.jar,spatial-sdk-hive.jar
      Note

      Only MaxCompute client (odpscmd) V0.43.0 or later allows you to run the show functions; command.

    • View the information of all built-in functions or the built-in functions that meet specific rules in a MaxCompute project.

      • Syntax

        -- View all built-in functions in a project. 
show builtin functions;
-- Query the built-in function named <function_name> in the project. 
show builtin functions [<function_name>];
-- View the built-in functions whose names are the same as the value of <function_name> in a project. The asterisk (*) indicates any character. 
show builtin functions like '<function_name>';

      • Examples

        • Example 1:

          show builtin functions;

          The following result is returned: 

          ID = 20230307081023424gef2hwowr1
::ABS   SCALAR  DECIMAL(?,?) ABS(DECIMAL(?,?) arg0),DOUBLE ABS(DOUBLE arg0),BIGINT ABS(BIGINT arg0),INT ABS(INT arg0)
::ACOS  SCALAR  DOUBLE ACOS(DOUBLE arg0),DOUBLE ACOS(DECIMAL(?,?) arg0)
::ADD_MONTHS    SCALAR  STRING ADD_MONTHS(DATE arg0, BIGINT arg1),STRING ADD_MONTHS(TIMESTAMP arg0, BIGINT arg1),STRING ADD_MONTHS(STRING arg0, BIGINT arg1)
::ALL_MATCH     SCALAR  BOOLEAN ALL_MATCH(ARRAY<T> arg0, java.util.function.Function<T, java.lang.Boolean> arg1)
::ANY_MATCH     SCALAR  BOOLEAN ANY_MATCH(ARRAY<T> arg0, java.util.function.Function<T, java.lang.Boolean> arg1)
::ANY_VALUE     AGGREGATOR      T ANY_VALUE([DISTINCT] T arg1)
::APPROX_DISTINCT       AGGREGATOR      BIGINT APPROX_DISTINCT([DISTINCT] P arg1, DOUBLE arg2),BIGINT APPROX_DISTINCT([DISTINCT] P arg1)
::ARG_MAX       AGGREGATOR      R ARG_MAX([DISTINCT] T arg1, R arg2)
::ARG_MIN       AGGREGATOR      R ARG_MIN([DISTINCT] T arg1, R arg2)
::ARRAY SCALAR  ARRAY<STRING> ARRAY(),ARRAY<T> ARRAY(T arg0...)
::ARRAYS_OVERLAP        SCALAR  BOOLEAN ARRAYS_OVERLAP(ARRAY<T> arg0, ARRAY<T> arg1)
::ARRAYS_ZIP    SCALAR  null
::ARRAY_CONTAINS        SCALAR  BOOLEAN ARRAY_CONTAINS(ARRAY<T> arg0, T arg1)
::ARRAY_DISTINCT        SCALAR  ARRAY<T> ARRAY_DISTINCT(ARRAY<T> arg0)
::ARRAY_EXCEPT  SCALAR  ARRAY<T> ARRAY_EXCEPT(ARRAY<T> arg0, ARRAY<T> arg1)
::ARRAY_INTERSECT       SCALAR  null
::ARRAY_JOIN    SCALAR  STRING ARRAY_JOIN(ARRAY<STRING> arg0, STRING arg1, STRING arg2),STRING ARRAY_JOIN(ARRAY<STRING> arg0, STRING arg1)
::ARRAY_MAX     SCALAR  T ARRAY_MAX(ARRAY<T> arg0)
::ARRAY_MIN     SCALAR  T ARRAY_MIN(ARRAY<T> arg0)
::ARRAY_NORMALIZE       SCALAR  ARRAY<FLOAT> ARRAY_NORMALIZE(ARRAY<FLOAT> arg0, FLOAT arg1),ARRAY<DOUBLE> ARRAY_NORMALIZE(ARRAY<DOUBLE> arg0, DOUBLE arg1)
::ARRAY_POSITION        SCALAR  BIGINT ARRAY_POSITION(ARRAY<T> arg0, T arg1, BIGINT arg2),BIGINT ARRAY_POSITION(ARRAY<T> arg0, T arg1)
::ARRAY_REDUCE  SCALAR  OUT ARRAY_REDUCE(ARRAY<IN> arg0, BUF arg1, java.util.function.BiFunction<BUF, IN, BUF> arg2, java.util.function.Function<BUF, OUT> arg3)
::ARRAY_REMOVE  SCALAR  ARRAY<T> ARRAY_REMOVE(ARRAY<T> arg0, T arg1)
::ARRAY_REPEAT  SCALAR  ARRAY<T> ARRAY_REPEAT(T arg0, BIGINT arg1)
::ARRAY_SORT    SCALAR  ARRAY<T> ARRAY_SORT(ARRAY<T> arg0, java.util.function.BiFunction<T, T, java.lang.Long> arg1)
::ARRAY_UNION   SCALAR  ARRAY<T> ARRAY_UNION(ARRAY<T> arg0, ARRAY<T> arg1)
::ASCII SCALAR  BIGINT ASCII(STRING arg0)
::ASIN  SCALAR  DOUBLE ASIN(DOUBLE arg0),DOUBLE ASIN(DECIMAL(?,?) arg0)
::ATAN  SCALAR  DOUBLE ATAN(DECIMAL(?,?) arg0),DOUBLE ATAN(DOUBLE arg0)
::ATAN2 SCALAR  DOUBLE ATAN2(DECIMAL(?,?) arg0, DECIMAL(?,?) arg1),DOUBLE ATAN2(DOUBLE arg0, DOUBLE arg1)
::AVG   AGGREGATOR      DECIMAL(?,?) AVG([DISTINCT] DECIMAL(?,?) arg1),DOUBLE AVG([DISTINCT] DOUBLE arg1)
::AVG   WINDOW  DOUBLE AVG([DISTINCT] DOUBLE arg0),DECIMAL(?,?) AVG([DISTINCT] DECIMAL(?,?) arg0)
::BASE64        SCALAR  STRING BASE64(BINARY arg0)
::BIN   SCALAR  STRING BIN(BIGINT arg0)
::BITAND        SCALAR  BIGINT BITAND(BIGINT arg0, BIGINT arg1)
::BITNOT        SCALAR  BIGINT BITNOT(BIGINT arg0)
::BITOR SCALAR  BIGINT BITOR(BIGINT arg0, BIGINT arg1)
::BITWISE_AND_AGG       AGGREGATOR      BIGINT BITWISE_AND_AGG([DISTINCT] BIGINT arg1)
::BITWISE_OR_AGG        AGGREGATOR      BIGINT BITWISE_OR_AGG([DISTINCT] BIGINT arg1)
::BITXOR        SCALAR  BIGINT BITXOR(BIGINT arg0, BIGINT arg1)
::BROUND        SCALAR  DOUBLE BROUND(DOUBLE arg0, BIGINT arg1),DOUBLE BROUND(DOUBLE arg0)
......
          Note

          Only MaxCompute client (odpscmd) V0.43.0 or later allows you to run the show builtin functions; command.

        • Example 2:

          -- Query the built-in function named abs in the project. 
show builtin functions abs;

          The following result is returned: 

          ID = 20230307085650740gm4qqqk6dox5
::ABS   SCALAR  DOUBLE ABS(DOUBLE arg0),DECIMAL(?,?) ABS(DECIMAL(?,?) arg0),BIGINT ABS(BIGINT arg0),INT ABS(INT arg0)

        • Example 3:

          -- View the built-in functions whose names match the a* keyword in a project. The asterisk (*) indicates any character. 
show builtin functions like 'a*';

          The following result is returned: 

          ID = 20230307085929584g784o0q9z8d1
::ABS   SCALAR  INT ABS(INT arg0),DOUBLE ABS(DOUBLE arg0),BIGINT ABS(BIGINT arg0),DECIMAL(?,?) ABS(DECIMAL(?,?) arg0)
::ACOS  SCALAR  DOUBLE ACOS(DOUBLE arg0),DOUBLE ACOS(DECIMAL(?,?) arg0)
::ADD_MONTHS    SCALAR  STRING ADD_MONTHS(STRING arg0, BIGINT arg1),STRING ADD_MONTHS(TIMESTAMP arg0, BIGINT arg1),STRING ADD_MONTHS(DATE arg0, BIGINT arg1)
::ALL_MATCH     SCALAR  BOOLEAN ALL_MATCH(ARRAY<T> arg0, java.util.function.Function<T, java.lang.Boolean> arg1)
::ANY_MATCH     SCALAR  BOOLEAN ANY_MATCH(ARRAY<T> arg0, java.util.function.Function<T, java.lang.Boolean> arg1)
::ANY_VALUE     AGGREGATOR      T ANY_VALUE([DISTINCT] T arg1)
::APPROX_DISTINCT       AGGREGATOR      BIGINT APPROX_DISTINCT([DISTINCT] P arg1, DOUBLE arg2),BIGINT APPROX_DISTINCT([DISTINCT] P arg1)
::ARG_MAX       AGGREGATOR      R ARG_MAX([DISTINCT] T arg1, R arg2)
::ARG_MIN       AGGREGATOR      R ARG_MIN([DISTINCT] T arg1, R arg2)
::ARRAY SCALAR  ARRAY<T> ARRAY(T arg0...),ARRAY<STRING> ARRAY()
::ARRAYS_OVERLAP        SCALAR  BOOLEAN ARRAYS_OVERLAP(ARRAY<T> arg0, ARRAY<T> arg1)
::ARRAYS_ZIP    SCALAR  null
::ARRAY_CONTAINS        SCALAR  BOOLEAN ARRAY_CONTAINS(ARRAY<T> arg0, T arg1)
::ARRAY_DISTINCT        SCALAR  ARRAY<T> ARRAY_DISTINCT(ARRAY<T> arg0)
::ARRAY_EXCEPT  SCALAR  ARRAY<T> ARRAY_EXCEPT(ARRAY<T> arg0, ARRAY<T> arg1)
::ARRAY_INTERSECT       SCALAR  null
::ARRAY_JOIN    SCALAR  STRING ARRAY_JOIN(ARRAY<STRING> arg0, STRING arg1, STRING arg2),STRING ARRAY_JOIN(ARRAY<STRING> arg0, STRING arg1)
::ARRAY_MAX     SCALAR  T ARRAY_MAX(ARRAY<T> arg0)
::ARRAY_MIN     SCALAR  T ARRAY_MIN(ARRAY<T> arg0)
::ARRAY_NORMALIZE       SCALAR  ARRAY<FLOAT> ARRAY_NORMALIZE(ARRAY<FLOAT> arg0, FLOAT arg1),ARRAY<DOUBLE> ARRAY_NORMALIZE(ARRAY<DOUBLE> arg0, DOUBLE arg1)
::ARRAY_POSITION        SCALAR  BIGINT ARRAY_POSITION(ARRAY<T> arg0, T arg1, BIGINT arg2),BIGINT ARRAY_POSITION(ARRAY<T> arg0, T arg1)
::ARRAY_REDUCE  SCALAR  OUT ARRAY_REDUCE(ARRAY<IN> arg0, BUF arg1, java.util.function.BiFunction<BUF, IN, BUF> arg2, java.util.function.Function<BUF, OUT> arg3)
::ARRAY_REMOVE  SCALAR  ARRAY<T> ARRAY_REMOVE(ARRAY<T> arg0, T arg1)
::ARRAY_REPEAT  SCALAR  ARRAY<T> ARRAY_REPEAT(T arg0, BIGINT arg1)
::ARRAY_SORT    SCALAR  ARRAY<T> ARRAY_SORT(ARRAY<T> arg0, java.util.function.BiFunction<T, T, java.lang.Long> arg1)
::ARRAY_UNION   SCALAR  ARRAY<T> ARRAY_UNION(ARRAY<T> arg0, ARRAY<T> arg1)
::ASCII SCALAR  BIGINT ASCII(STRING arg0)
::ASIN  SCALAR  DOUBLE ASIN(DECIMAL(?,?) arg0),DOUBLE ASIN(DOUBLE arg0)
::ATAN  SCALAR  DOUBLE ATAN(DECIMAL(?,?) arg0),DOUBLE ATAN(DOUBLE arg0)
::ATAN2 SCALAR  DOUBLE ATAN2(DECIMAL(?,?) arg0, DECIMAL(?,?) arg1),DOUBLE ATAN2(DOUBLE arg0, DOUBLE arg1)
::AVG   AGGREGATOR      DECIMAL(?,?) AVG([DISTINCT] DECIMAL(?,?) arg1),DOUBLE AVG([DISTINCT] DOUBLE arg1)
::AVG   WINDOW  DOUBLE AVG([DISTINCT] DOUBLE arg0),DECIMAL(?,?) AVG([DISTINCT] DECIMAL(?,?) arg0)
    Note

    For more information about function operations, see Function operations.

    Instance operations

    Views instance information. The information includes StartTime (in seconds), RunTime (in seconds), Status, InstanceID, Owner, and Query statements.

    • Syntax
      show p|proc|processlist|instances [from <startdate>] [to <enddate>] [-p <project_name>] [-limit <number> | <number>] [-all];
ls|list instances [from <startdate>] [to <enddate>] [-p <project_name>] [-limit <number> | <number>] [-all];

      The following statements are equivalent: show p, show proc, show processlist, show instances, ls instances, and list instances.

    • Parameters
      • startdate and enddate: optional. The instance information that is submitted by a user within the period from startdate to enddate is returned. The date specified by the startdate parameter must be earlier than the date specified by the enddate parameter. The instance information that is submitted on the day that is specified by enddate is not included. The values of the two parameters must be in the yyyy-mm-dd format and are accurate to the day. If you do not configure the parameters, the instance information that is submitted on the current day is returned.
      • project_name: optional. The name of the MaxCompute project to which the instance that you want to query belongs. You must have the permissions to view the instance of the MaxCompute project. If you do not configure this parameter, the instance of the current MaxCompute project is queried.
      • number: optional. The number of instances that you want to return.
      • If you configure this parameter, information about N instances that is submitted at the time nearest to the current time is returned in chronological order. N is specified by the number parameter. If you do not configure this parameter, information about the instances that meet specific requirements is returned. -limit <number> and number are equivalent.
      • -all: optional. Information about all instances that are run by the members of the MaxCompute project is returned. If you do not configure this parameter, information about the instances that are run by the current user in the MaxCompute project is returned.

        If the number parameter is not specified, information about up to 50 instances is returned by default. If the number parameter is configured, information about N instances is returned. N is specified by the number parameter.

    • Examples
      • Example 1: View the information about all instances that are run by the current user in the current MaxCompute project on the current day. Sample statement: 
        show p;
        The following result is returned: 
        StartTime             RunTime  Status   InstanceID                    Owner                            Query
2021-09-14 11:43:04   0s       Success  20210914**************3rw2    ALIYUN$****@test.aliyunid.com
2021-09-14 11:43:05   1s       Success  20210914**************5t32    ALIYUN$****@test.aliyunid.com select date_sub(datetime '2005-03-01 00:00:00', 1);
2021-09-14 11:58:13   0s       Success  20210914**************5pr2    ALIYUN$****@test.aliyunid.com
2021-09-14 11:58:15   1s       Success  20210914**************5qgr    ALIYUN$****@test.aliyunid.com select date_sub(date '2005-02-28', -1);
2021-09-14 12:02:15   1s       Success  20210914**************h8o7    ALIYUN$****@test.aliyunid.com select date_sub('2008-03-01 00:00:00', 2);
2021-09-14 12:02:15   0s       Success  20210914**************5t32    ALIYUN$****@test.aliyunid.com
2021-09-14 12:02:31   0s       Success  20210914**************5pr2    ALIYUN$****@test.aliyunid.com
2021-09-14 12:02:32   0s       Success  20210914**************euq2    ALIYUN$****@test.aliyunid.com select date_sub('2005-03-01 00:00:00', 2);
2021-09-14 13:35:42   0s       Success  20210914**************1ms2    ALIYUN$****@test.aliyunid.com
2021-09-14 13:35:43   0s       Success  20210914**************j8o7    ALIYUN$****@test.aliyunid.com select date_sub(getdate(),1);
2021-09-14 13:40:40   1s       Success  20210914**************h3wz    ALIYUN$****@test.aliyunid.com select date_sub(getdate(),0);
2021-09-14 13:40:40   0s       Success  20210914**************9nm7    ALIYUN$****@test.aliyunid.com
12 instances
      • Example 2: View the information about the instances that are run by the current user in the current MaxCompute project within a specified period of time, and specify the number of instances whose information you want to query. Sample statement: 
        show instances from 2021-09-14 to 2021-09-15 -limit 10;
        The following result is returned: 
        StartTime             RunTime  Status   InstanceID                    Owner                            Query
2021-09-14 11:58:13   0s       Success  20210914**************5pr2    ALIYUN$****@test.aliyunid.com
2021-09-14 11:58:15   1s       Success  20210914**************5qgr    ALIYUN$****@test.aliyunid.com    select date_sub(date '2005-02-28', -1);
2021-09-14 12:02:15   1s       Success  20210914**************h8o7    ALIYUN$****@test.aliyunid.com    select date_sub('2008-03-01 00:00:00', 2);
2021-09-14 12:02:15   0s       Success  20210914**************5t32    ALIYUN$****@test.aliyunid.com
2021-09-14 12:02:31   0s       Success  20210914**************5pr2    ALIYUN$****@test.aliyunid.com
2021-09-14 12:02:32   0s       Success  20210914**************euq2    ALIYUN$****@test.aliyunid.com    select date_sub('2005-03-01 00:00:00', 2);
2021-09-14 13:35:42   0s       Success  20210914**************1ms2    ALIYUN$****@test.aliyunid.com
2021-09-14 13:35:43   0s       Success  20210914**************j8o7    ALIYUN$****@test.aliyunid.com    select date_sub(getdate(),1);
2021-09-14 13:40:40   1s       Success  20210914**************h3wz    ALIYUN$****@test.aliyunid.com    select date_sub(getdate(),0);
2021-09-14 13:40:40   0s       Success  20210914**************9nm7    ALIYUN$****@test.aliyunid.com
10 instances
      • Example 3: View the information about the instances that are run by all users in another MaxCompute project within a specified period of time and specify the number of instances whose information you want to query. Sample statement: 
        ls instances from 2021-09-14 to 2021-09-15 -p doc_test_dev -all -limit 10;
        The following result is returned: 
        StartTime             RunTime  Status   InstanceID                    Owner                            Query
2021-09-14 11:59:16   0s       Success  20210914**************6pr3    ALIYUN$****@test.aliyunid.com
2021-09-14 11:59:20   1s       Success  20210914**************6qgr    ALIYUN$****@test.aliyunid.com    select date_sub(date '2007-02-26', -1);
2021-09-14 12:02:19   1s       Success  20210914**************h8o7    ALIYUN$****@test.aliyunid.com    select date_sub('2009-03-01 00:00:00', 2);
2021-09-14 12:02:25   0s       Success  20210914**************7t42    ALIYUN$****@test.aliyunid.com
2021-09-14 12:02:37   0s       Success  20210914**************7pr2    ALIYUN$****@test.aliyunid.com
2021-09-14 12:02:40   0s       Success  20210914**************emq2    ALIYUN$****@test.aliyunid.com    select date_sub('2015-03-01 00:00:00', 2);
2021-09-14 13:35:42   0s       Success  20210914**************1ms2    ALIYUN$****@test.aliyunid.com
2021-09-14 13:35:43   0s       Success  20210914**************68o7    ALIYUN$kiki                      select date_sub(getdate(),1);
2021-09-14 13:45:40   1s       Success  20210914**************73wz    ALIYUN$kiki                      select date_sub(getdate(),0);
2021-09-14 13:45:45   0s       Success  20210914**************9nm7    ALIYUN$dreak
10 instances
      • Example 4: View the information about the instances that are run by all users in another MaxCompute project on the current day, and specify the number of instances whose information you want to query. Sample statement: 
        show p -p doc_test_dev -all 5;
        The following result is returned: 
        StartTime             RunTime  Status   InstanceID                    Owner                            Query
2021-09-14 12:02:40   0s       Success  20210914**************emq2    ALIYUN$****@test.aliyunid.com    select date_sub('2015-03-01 00:00:00', 2);
2021-09-14 13:35:42   0s       Success  20210914**************1ms2    ALIYUN$****@test.aliyunid.com
2021-09-14 13:35:43   0s       Success  20210914**************68o7    ALIYUN$kiki                      select date_sub(getdate(),1);
2021-09-14 13:45:40   1s       Success  20210914**************73wz    ALIYUN$kiki                      select date_sub(getdate(),0);
2021-09-14 13:45:45   0s       Success  20210914**************9nm7    ALIYUN$dreak
5 instances
    Note

    For more information about instance operations, see Instance operations.

    Permission query operations

    MaxCompute allows you to query the permissions of a user or a role, or the permissions on an object by using SHOW commands. For more information, see Query permissions by using MaxCompute SQL or Permission-related command set.

    Operations that can be performed to collect information about the optimizer of MaxCompute

    You can run the show statistic command to test collection results of column stats metrics.

    • Examples

      -- Test the collection result of the tinyint1 column. 
show statistic analyze2_test columns (tinyint1);

-- Test the collection results of the smallint1, string1, boolean1, and timestamp1 columns. 
show statistic analyze2_test columns (smallint1, string1, boolean1, timestamp1);

-- Test the collection results of all columns. 
show statistic analyze2_test columns;

    • Returned result

      -- Collection result of the tinyint1 column: 
ID = 20201126085225150gnqo****
tinyint1:MaxValue:      20                   -- The value of max. 
tinyint1:DistinctNum:   4.0                  -- The value of ndv. 
tinyint1:MinValue:      1                    -- The value of min. 
tinyint1:NullNum:       1.0                  -- The value of nNulls. 
tinyint1:TopK:  {1=1.0, 10=1.0, 20=1.0}      -- The value of topK. 10=1.0 indicates that the occurrence frequency of column value 10 is 1. Up to 20 values with the highest occurrence frequency can be returned. 

-- Collection results of the smallint1, string1, boolean1, and timestamp1 columns: 
ID = 20201126091636149gxgf****
smallint1:MaxValue:     20
smallint1:DistinctNum:  4.0
smallint1:MinValue:     2
smallint1:NullNum:      1.0
smallint1:TopK:         {2=1.0, 7=1.0, 20=1.0}

string1:MaxLength       6.0                  -- The value of maxColLen. 
string1:AvgLength:      3.0                  -- The value of avgColLen. 
string1:DistinctNum:    4.0
string1:NullNum:        1.0
string1:TopK:   {str1=1.0, str12=1.0, str123=1.0}

boolean1:DistinctNum:   3.0
boolean1:NullNum:       1.0
boolean1:TopK:  {false=2.0, true=1.0}

timestamp1:DistinctNum:         3.0
timestamp1:NullNum:     1.0
timestamp1:TopK:        {2018-09-17 00:00:00.0=2.0, 2018-09-18 00:00:00.0=1.0}

-- Collection results of all columns: 
ID = 20201126092022636gzm1****
tinyint1:MaxValue:      20
tinyint1:DistinctNum:   4.0
tinyint1:MinValue:      1
tinyint1:NullNum:       1.0
tinyint1:TopK:  {1=1.0, 10=1.0, 20=1.0}

smallint1:MaxValue:     20
smallint1:DistinctNum:  4.0
smallint1:MinValue:     2
smallint1:NullNum:      1.0
smallint1:TopK:         {2=1.0, 7=1.0, 20=1.0}

int1:MaxValue:  7
int1:DistinctNum:       3.0
int1:MinValue:  4
int1:NullNum:   1.0
int1:TopK:      {4=2.0, 7=1.0}

bigint1:MaxValue:       11111118
bigint1:DistinctNum:    4.0
bigint1:MinValue:       8
bigint1:NullNum:        1.0
bigint1:TopK:   {8=1.0, 2222228=1.0, 11111118=1.0}

double1:MaxValue:       123452.3
double1:DistinctNum:    4.0
double1:MinValue:       12.3
double1:NullNum:        1.0
double1:TopK:   {12.3=1.0, 67892.3=1.0, 123452.3=1.0}

decimal1:MaxValue:      22.4
decimal1:DistinctNum:   4.0
decimal1:MinValue:      2.4
decimal1:NullNum:       1.0
decimal1:TopK:  {2.4=1.0, 12.4=1.0, 22.4=1.0}

decimal2:MaxValue:      52.5
decimal2:DistinctNum:   4.0
decimal2:MinValue:      2.57
decimal2:NullNum:       1.0
decimal2:TopK:  {2.57=1.0, 42.5=1.0, 52.5=1.0}

string1:MaxLength       6.0
string1:AvgLength:      3.0
string1:DistinctNum:    4.0
string1:NullNum:        1.0
string1:TopK:   {str1=1.0, str12=1.0, str123=1.0}

varchar1:MaxLength      6.0
varchar1:AvgLength:     3.0
varchar1:DistinctNum:   4.0
varchar1:NullNum:       1.0
varchar1:TopK:  {str2=1.0, str200=1.0, str21=1.0}

boolean1:DistinctNum:   3.0
boolean1:NullNum:       1.0
boolean1:TopK:  {false=2.0, true=1.0}

timestamp1:DistinctNum:         3.0
timestamp1:NullNum:     1.0
timestamp1:TopK:        {2018-09-17 00:00:00.0=2.0, 2018-09-18 00:00:00.0=1.0}

datetime1:DistinctNum:  3.0
datetime1:NullNum:      1.0
datetime1:TopK:         {1537117199000=2.0, 1537030799000=1.0}
    Note

    For more information about how to collect metadata for the optimizer of MaxCompute, see Collect information for the optimizer of MaxCompute.