Para obter metadados que descrevem uma tabela, use o comando aws redshift-data
describe-table da AWS CLI.
O comando a seguir da AWS CLI executa uma instrução SQL em um cluster e retorna metadados que descrevem uma tabela. Este exemplo usa o método de autenticação AWS Secrets Manager.
aws redshift-data describe-table --cluster-identifier mycluster-test --database dev --schema information_schema --table sql_features --secret arn:aws:secretsmanager:us-west-2:123456789012:secret:myuser-secret-hKgPWn
Este é um exemplo da resposta.
{
"ColumnList": [
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "feature_id",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "feature_name",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
}
]
}O comando a seguir da AWS CLI executa uma instrução SQL em um cluster que descreve uma tabela. Este exemplo usa o método de autenticação de credenciais temporárias.
aws redshift-data describe-table --db-user myuser --cluster-identifier mycluster-test --database dev --schema information_schema --table sql_features
Este é um exemplo da resposta.
{
"ColumnList": [
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "feature_id",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "feature_name",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "sub_feature_id",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "sub_feature_name",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "is_supported",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "is_verified_by",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
},
{
"isCaseSensitive": false,
"isCurrency": false,
"isSigned": false,
"length": 2147483647,
"name": "comments",
"nullable": 1,
"precision": 2147483647,
"scale": 0,
"schemaName": "information_schema",
"tableName": "sql_features",
"typeName": "character_data"
}
]
}