An overview of the core components can be found in the included
TransactionalClusterMetadata.md
patch by Alex Petrov, Marcus Eriksson and Sam Tunnicliffe; reviewed by
Alex Petrov, Marcus Eriksson and Sam Tunnicliffe for CASSANDRA-18330
Co-authored-by: Marcus Eriksson <marcuse@apache.org>
Co-authored-by: Alex Petrov <oleksandr.petrov@gmail.com>
Co-authored-by: Sam Tunnicliffe <samt@apache.org>
This patch removes deprecated chunk_length_kb and sstable_compression in favor of
chunk_length_in_kb and class parameters.
The only deprecated compression parameter left, crc_check_chance (which is configurable outside
of compression parameters as a standalone table parameter) is meant to be treated separately.
patch by Stefan Miklosovic; reviewed by Maxim Muzafarov and Brandon Williams for CASSANDRA-18742
Allows to attach the native masking functions and UDFs to the definitions of
table columns in the schema, as defined by CEP-20.
The functions masking a column can be specified on CREATE TABLE queries, right
at the end of the column definition. The mask of a column can also be changed
or dropped with an ALTER TABLE query. Once a column is masked, SELECT queries
will always return the masked value of the column. That masking is done on the
coordinator, at the end of the query execution. Thus, masking won't affect any
filters or ordering, which would be based on the clear values of the masked
columns. Column masks are stored on the table system_schema.column_masks.
A new UNMASK permission allows to see the clear data of columns with an
attached mask. Also, a new SELECT_MASKED permission allows to run SELECT
queries restricting the clear values of masked columns. Superusers have both
permissions by default, whereas regular users don't have them.
Dynamic data masking can be enabled/disabled with the config property
dynamic_data_masking_enabled in cassandra.yaml. It is disabled by default.
This is the combination of multiple tickets:
* Add masking functions to column metadata (CASSANDRA-18068)
* Add UNMASK permission (CASSANDRA-18069)
* Add SELECT_MASKED permission (CASSANDRA-18070)
* Add support for using UDFs as masking functions (CASSANDRA-18071)
* Add feature flag for dynamic data masking (CASSANDRA-18316)
patch by Andrés de la Peña; reviewed by Benjamin Lerer and Berenguer Blasi for CASSANDRA-17940
IF (NOT) EXISTS is now also offered in cqlsh completion for CREATE TYPE, DROP TYPE, CREATE ROLE and DROP ROLE
patch by Brad Schoening; reviewed by Stefan Miklosovic and Brandon Williams for CASSANDRA-16640
patch by Tommy Stendahl; reviewed by Stefan Miklosovic and Aleksey Yeschenko for CASSANDRA-10383
Co-authored-by: Tommy Stendahl <tommy.stendahl@ericsson.com>
Co-authored-by: Stefan Miklosovic <smiklosovic@apache.org>
Patch by Benjamin Lerer; review by Andres De la Pena and Yifan Cai for CASSANDRA-11871
The patch allow to use pure monotonic functions on the last attribute of the GROUP BY clause and introduce some floor functions that can be use to group by time range.
A function is pure if:
1. The function return values are identical for identical arguments
2. The function application has no side effects
A function is monotonic if it is either entirely nonincreasing or nondecreasing.
patch by Robert Stupp and Berenguer Blasi; reviewed by Andres de la Peña for CASSANDRA-17334
Co-authored-by: Robert Stupp <snazy@snazy.de>
Co-authored-by: Berenguer Blasi <berenguerblasi@gmail.com>
patch by Francisco Guerrero; reviewed by Benjamin Lerer and Yifan Cai for CASSANDRA-17030
This commit allows GRANT/REVOKE statement to support multiple permissions with a single
statement. For example,
```
GRANT MODIFY, SELECT ON KEYSPACE field TO manager;
GRANT ALTER, DROP ON ROLE role1 TO role2;
```
Patch by Benjamin Lerer; Review by Andres de la Peña and Ekaterina Dimitrova for CASSANDRA-17027
In some cases it is useful to prevent users to alter or drop a keyspace
while allowing them to create new tables.
This patch add support for a new DataResource below KEYSPACE but above
TABLE. The syntax to grant permission at this level in ALL TABLES IN
KEYSPACE.
patch by Eduard Tudenhoefner; reviewed by Benjamin Lerer for
CASSANDRA-15706
This is so that those keyspaces don't show up in tab completions. This
also fixes the cqlsh completion tests.
Removed the strategy from cqlsh autocomplete, including an array for replication_factor autocomplete that was only used for SimpleStrategy and OldNetworkTopologyStrategy.
patch by Pedro Gordo; reviewed by Anthony Grasso, Mick Semb Wever for CASSANDRA-13990
Patch by Blake Eggleston, Benedict Elliott Smith, Marcus Eriksson, Alex Petrov, Ariel Weisberg; Reviewed by Blake Eggleston, Marcus Eriksson, Benedict Elliott Smith, Alex Petrov, Ariel Weisberg for CASSANDRA-14404
Co-authored-by: Blake Eggleston <bdeggleston@gmail.com>
Co-authored-by: Benedict Elliott Smith <benedict@apache.org>
Co-authored-by: Marcus Eriksson <marcuse@apache.org>
Co-authored-by: Alex Petrov <oleksandr.petrov@gmail.com>
Sam Tunnicliffe