Description
SHOW TABLE EXTENDED will show information for all tables matching the given regular expression. Output includes basic table information and file system information like Last Access, Created By, Type, Provider, Table Properties, Location, Serde Library, InputFormat, OutputFormat, Storage Properties, Partition Provider, Partition Columns and Schema.
If a partition specification is present, it outputs the given partition's file-system-specific information such as Partition Parameters and Partition Statistics. Note that a table regex cannot be used with a partition specification.
Syntax
SHOW TABLE EXTENDED [ IN | FROM database_name ] LIKE 'identifier_with_wildcards' [ partition_spec ]
Parameters
-
IN|FROM database_name - Specifies database name. If not provided, will use the current database.
-
LIKE string_pattern -
Specifies the regular expression pattern that is used to filter out unwanted tables.
- Except for `*` and `|` character, the pattern works like a regex.
- `*` alone matches 0 or more characters and `|` is used to separate multiple different regexes, any of which can match.
- The leading and trailing blanks are trimmed in the input pattern before processing.
-
partition_spec -
An optional parameter that specifies a comma separated list of key and value pairs for partitions. Note that a table regex cannot be used with a partition specification.
Syntax:PARTITION ( partition_col_name [ = partition_col_val ] [ , ... ] )
Examples
-- Assumes employee table created with partitioned by column grade -- +-------+--------+--+ -- | name | grade | -- +-------+--------+--+ -- | sam | 1 | -- | suj | 2 | -- +-------+--------+--+
-- Show the details of the table SHOW TABLE EXTENDED LIKE employee; +--------+---------+-----------+--------------------------------------------------------------- |database|tableName|isTemporary| information +--------+---------+-----------+--------------------------------------------------------------- |default |employee |false |Database: default Table: employee Owner: root Created Time: Fri Aug 30 15:10:21 IST 2019 Last Access: Thu Jan 01 05:30:00 IST 1970 Created By: Spark 3.0.0-SNAPSHOT Type: MANAGED Provider: hive Table Properties: [transient_lastDdlTime=1567158021] Location: file:/opt/spark1/spark/spark-warehouse/employee Serde Library: org.apache.hadoop.hive.serde2.lazy
.LazySimpleSerDe InputFormat: org.apache.hadoop.mapred.TextInputFormat OutputFormat: org.apache.hadoop.hive.ql.io .HiveIgnoreKeyTextOutputFormat Storage Properties: [serialization.format=1] Partition Provider: Catalog Partition Columns: [grade] Schema: root |-- name: string (nullable = true) |-- grade: integer (nullable = true)
+--------+---------+-----------+---------------------------------------------------------------
-- showing the multiple table details with pattern matching SHOW TABLE EXTENDED LIKE employe*; +--------+---------+-----------+--------------------------------------------------------------- |database|tableName|isTemporary| information +--------+---------+-----------+--------------------------------------------------------------- |default |employee |false |Database: default Table: employee Owner: root Created Time: Fri Aug 30 15:10:21 IST 2019 Last Access: Thu Jan 01 05:30:00 IST 1970 Created By: Spark 3.0.0-SNAPSHOT Type: MANAGED Provider: hive Table Properties: [transient_lastDdlTime=1567158021] Location: file:/opt/spark1/spark/spark-warehouse/employee Serde Library: org.apache.hadoop.hive.serde2.lazy .LazySimpleSerDe InputFormat: org.apache.hadoop.mapred.TextInputFormat OutputFormat: org.apache.hadoop.hive.ql.io .HiveIgnoreKeyTextOutputFormat Storage Properties: [serialization.format=1] Partition Provider: Catalog Partition Columns: [grade] Schema: root |-- name: string (nullable = true) |-- grade: integer (nullable = true)
|default |employee1|false |Database: default Table: employee1 Owner: root Created Time: Fri Aug 30 15:22:33 IST 2019 Last Access: Thu Jan 01 05:30:00 IST 1970 Created By: Spark 3.0.0-SNAPSHOT Type: MANAGED Provider: hive Table Properties: [transient_lastDdlTime=1567158753] Location: file:/opt/spark1/spark/spark-warehouse/employee1 Serde Library: org.apache.hadoop.hive.serde2.lazy .LazySimpleSerDe InputFormat: org.apache.hadoop.mapred.TextInputFormat OutputFormat: org.apache.hadoop.hive.ql.io .HiveIgnoreKeyTextOutputFormat Storage Properties: [serialization.format=1] Partition Provider: Catalog Schema: root |-- name: string (nullable = true)
+--------+---------+----------+----------------------------------------------------------------
-- show partition file system details SHOW TABLE EXTENDED IN default LIKE employee PARTITION (grade=1); +--------+---------+-----------+--------------------------------------------------------------- |database|tableName|isTemporary| information
+--------+---------+-----------+--------------------------------------------------------------- |default |employee |false | Partition Values: [grade=1] Location: file:/opt/spark1/spark/spark-warehouse/employee /grade=1 Serde Library: org.apache.hadoop.hive.serde2.lazy .LazySimpleSerDe InputFormat: org.apache.hadoop.mapred.TextInputFormat OutputFormat: org.apache.hadoop.hive.ql.io .HiveIgnoreKeyTextOutputFormat Storage Properties: [serialization.format=1] Partition Parameters: {rawDataSize=-1, numFiles=1, transient_lastDdlTime=1567158221, totalSize=4, COLUMN_STATS_ACCURATE=false, numRows=-1} Created Time: Fri Aug 30 15:13:41 IST 2019 Last Access: Thu Jan 01 05:30:00 IST 1970 Partition Statistics: 4 bytes | +--------+---------+-----------+---------------------------------------------------------------
-- show partition file system details with regex fails as shown below SHOW TABLE EXTENDED IN default LIKE empl* PARTITION (grade=1); Error: Error running query: org.apache.spark.sql.catalyst.analysis.NoSuchTableException: Table or view 'emplo*' not found in database 'default'; (state=,code=0)