You're viewing version 2.2 of the OpenSearch documentation. This version is no longer maintained. For the latest version, see the current documentation. For information about OpenSearch version maintenance, see Release Schedule and Maintenance Policy.
Metadata queries
To see basic metadata about your indices, use the SHOW
and DESCRIBE
commands.
Syntax
Rule showStatement
:
Rule showFilter
:
Example 1: See metadata for indices
To see metadata for indices that match a specific pattern, use the SHOW
command. Use the wildcard %
to match all indices:
SHOW TABLES LIKE %
TABLE_CAT | TABLE_SCHEM | TABLE_NAME | TABLE_TYPE | REMARKS | TYPE_CAT | TYPE_SCHEM | TYPE_NAME | SELF_REFERENCING_COL_NAME | REF_GENERATION |
---|---|---|---|---|---|---|---|---|---|
docker-cluster | null | accounts | BASE TABLE | null | null | null | null | null | null |
docker-cluster | null | employees_nested | BASE TABLE | null | null | null | null | null | null |
Example 2: See metadata for a specific index
To see metadata for an index name with a prefix of acc
:
SHOW TABLES LIKE acc%
TABLE_CAT | TABLE_SCHEM | TABLE_NAME | TABLE_TYPE | REMARKS | TYPE_CAT | TYPE_SCHEM | TYPE_NAME | SELF_REFERENCING_COL_NAME | REF_GENERATION |
---|---|---|---|---|---|---|---|---|---|
docker-cluster | null | accounts | BASE TABLE | null | null | null | null | null | null |
Example 3: See metadata for fields
To see metadata for field names that match a specific pattern, use the DESCRIBE
command:
DESCRIBE TABLES LIKE accounts
TABLE_CAT | TABLE_SCHEM | TABLE_NAME | COLUMN_NAME | DATA_TYPE | TYPE_NAME | COLUMN_SIZE | BUFFER_LENGTH | DECIMAL_DIGITS | NUM_PREC_RADIX | NULLABLE | REMARKS | COLUMN_DEF | SQL_DATA_TYPE | SQL_DATETIME_SUB | CHAR_OCTET_LENGTH | ORDINAL_POSITION | IS_NULLABLE | SCOPE_CATALOG | SCOPE_SCHEMA | SCOPE_TABLE | SOURCE_DATA_TYPE | IS_AUTOINCREMENT | IS_GENERATEDCOLUMN |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
docker-cluster | null | accounts | account_number | null | long | null | null | null | 10 | 2 | null | null | null | null | null | 1 | null | null | null | null | NO | ||
docker-cluster | null | accounts | firstname | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 2 | null | null | null | null | NO | ||
docker-cluster | null | accounts | address | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 3 | null | null | null | null | NO | ||
docker-cluster | null | accounts | balance | null | long | null | null | null | 10 | 2 | null | null | null | null | null | 4 | null | null | null | null | NO | ||
docker-cluster | null | accounts | gender | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 5 | null | null | null | null | NO | ||
docker-cluster | null | accounts | city | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 6 | null | null | null | null | NO | ||
docker-cluster | null | accounts | employer | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 7 | null | null | null | null | NO | ||
docker-cluster | null | accounts | state | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 8 | null | null | null | null | NO | ||
docker-cluster | null | accounts | age | null | long | null | null | null | 10 | 2 | null | null | null | null | null | 9 | null | null | null | null | NO | ||
docker-cluster | null | accounts | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 10 | null | null | null | null | NO | |||
docker-cluster | null | accounts | lastname | null | text | null | null | null | 10 | 2 | null | null | null | null | null | 11 | null | null | null | null | NO |