Today, etcdctl endpoint health only performs a quorum GET. If server is corrupted or exceeded quota (which put the server into read only mode), this command incorrectly returns healthy.

when running make rhinojs fails due to a missing cp command

cp rhino/buildGradle/libs/rhino*.jar rhino.jar
usage: cp [-R [-H | -L | -P]] [-fi | -n] [-apvXc] source_file target_file
       cp [-R [-H | -L | -P]] [-fi | -n] [-apvXc] source_file ... target_directory
make: *** [rhino.jar] Error 64

Issue was resolved by manually copying one of the jars

`cp rhino/buildGradle/libs/r

SQL supports hidden columns: columns that are only included in a projection if explicitly requested. An example of this is the rowid column that is created on tables without explicitly primary keys.

Currently, there is no way to get a hidden column on a user-defined table: it's only possible if you manually set the hidden boolean in the table descriptor, by editing the CockroachDB source code

Sometimes it is needed to store compressed data in the DB. Unfortunately not all the DBs have built-in compression and FUSE compressed FSes are not available for every OS. So it may make sense to store compressed binary blobs in the DB.

Unfortunately when one sees them in DBeaver he sees them compressed, but often they are needed uncompressed. So it'd be nice to have a feature to decompress the

The class TextProtocolBackendHandlerFactory has already split into multiple Factory classes. It is better to split test cases into suitable classes.

• Move TCL related test cases into TransactionBackendHandlerFactoryTest
• Keep one TCL SQL test case in TextProtocolBackendHandlerFactoryTest and assert return TransactionBackendHandler
• Move DAL related test cases into `DALBacke

Issue description

Go 1.15 will introduce a new Validator interface, which may be implemented by Conn to allow drivers to signal if a connection is valid or if it should be discarded:

https://tip.golang.org/pkg/database/sql/driver/#Validator

We should add the Default Timeout connection string keyword. Order of precedence would be:

1. SqliteCommand.CommandTimeout (always wins if set)
2. SqliteConnection.DefaultTimeout
3. Default Time= in the connection string
4. 30 (the ADO.NET default)