Previously, scylla used min/max(blob)->blob overload for collections,
tuples and UDTs; effectively making the results being printed as blobs.
This PR adds "dynamically"-typed min()/max() functions for compound types.
These types can be complicated, like map<int,set<tuple<..., and created
in runtime, so functions for them are created on-demand,
similarly to tojson(). The comparison remains unchanged - underneath
this is still byte-by-byte weak lex ordering.
Fixes#5139
* jul-stas/5139-minmax-bad-printing-collections:
cql_query_tests: Added tests for min/max/count on collections
cql3: min()/max() for collections/tuples/UDTs do not cast to blobs
This tests new min/max function for collections and tuples. CFs
in test suite were named according to types being tested, e.g.
`cf_map<int,text>' what is not a valid CF name. Therefore, these
names required "escaping" of invalid characters, here: simply
replacing with '_'.
"
In several cases in distributed testing (dtest) we trigger compaction using nodetool compact assuming that when it is done, it is indeed really done.
However, the way compaction is currently implemented in scylla, it may leave behind some background tasks to delete the old sstables that were compacted.
This commit changes major compaction (triggered via the ss::force_keyspace_compaction api) so it would wait on the background deletes and will return only when they finish.
Fixes#4909
Tests: unit(dev), nodetool_refresh_with_data_perms_test, test_nodetool_snapshot_during_major_compaction
"
I found these mismatched types while converting some member functions
to standalone functions, since they have to use the public API that
has more type checks.
Signed-off-by: Rafael Ávila de Espíndola <espindola@scylladb.com>
Message-Id: <20191120181213.111758-4-espindola@scylladb.com>
is_value_compatible_with_internal and update_user_type were generalized
to the non-frozen case.
For now, all user_type_impls in the code are non-multi-cell (frozen).
This will be changed in future commits.
The purpose of collection_type_impl::to_value was to serialize a
collection for sending over CQL. The corresponding function in origin
is called serializeForNativeProtocol, but the name is a bit lengthy,
so I settled for serialize_for_cql.
The method now became a free-standing function, using the visit
function to perform a dispatch on the collection type instead
of a virtual call. This also makes it easier to generalize it to UDTs
in future commits.
Remove the old serialize_for_native_protocol with a FIXME: implement
inside. It was already implemented (to_value), just called differently.
remove dead methods: enforce_limit and serialized_values. The
corresponding methods in C* are auxiliary methods used inside
serializeForNativeProtocol. In our case, the entire algorithm
is wholly written in serialize_for_cql.
collection_type_impl::mutation became collection_mutation_description.
collection_type_impl::mutation_view became collection_mutation_view_description.
These classes now reside inside collection_mutation.hh.
Additional documentation has been written for these classes.
Related function implementations were moved to collection_mutation.cc.
This makes it easier to generalize these classes to non-frozen UDTs in future commits.
The new names (together with documentation) better describe their purpose.
Frozen empty lists/map/sets are not equal to null value,
whil multi-cell empty lists/map/sets are equal to null values.
Return a NULL value for an empty multi-cell set or list
if we know the receiver is not frozen - this makes it
easy to compare the parameter with the receiver.
Add a test case for inserting an empty list or set
- the result is indistinguishable from NULL value.
Message-Id: <20191003092157.92294-2-kostja@scylladb.com>
If the user supplies the 'replication_factor' to the 'NetworkTopologyStrategy' class,
it will expand into a replication factor for each existing DC for their convenience.
Resolves#4210.
Signed-off-by: Kamil Braun <kbraun@scylladb.com>
Now that compaction returns only after the compacted sstables are
deleted we no longer need to stop the base to force waiting
for deletes (that were previously done asynchronously)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Some tests are currently discarding futures unjustifiably, however
adding code to wait on these futures is quite inconvenient due to the
continuation style code of these tests. Convert them to run in a seastar
thread to make the fix easier.
Cartesian products (via IN restrictions) make it easy to generate huge
primary key sets with simple queries, overflowing server resources. Limit
them in the coordinator and report an exception instead of trying to
execute a query that would consume all of our memory.
A unit test is added.
We need a way to configure the cql interpreter and runtime. So far we relied
on accessing the configuration class via various backdoors, but that causes
its own problems around initialization order and testability. To avoid that,
this patch adds an empty cql_config class and propagates it from main.cc
(and from tests) to the cql interpreter via the query_options class, which is
already passed everywhere.
Later patches will fill it with contents.
Currently we create a regex from the LIKE pattern for every row
considered during filtering, even though the pattern is always the
same. This is wasteful, especially since we require costly
optimization in the regex compiler. Fix it by reusing the regex
whenever the pattern is unchanged since the last call.
Tests: unit (dev)
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
"
Follow-up to #4610, where a review comment asked for test coverage on all types. Existing tests cover all the types admissible in LIKE, while this PR adds coverage for all inadmissible types.
Tests: unit (dev)
"
* 'like-nonstring' of https://github.com/dekimir/scylla:
cql_query_test: Add LIKE tests for all types
cql_query_test: Remove LIKE-nonstring-pattern case
cql_query_test: Move a testcase elsewhere in file
This testcase was previously commented out, pending a fix that cannot
be made. Currently it is impossible to validate the marker-value type
at filtering time. The value is entered into the options object under
its presumed type of string, regardless of what it was made from.
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
Somehow this test case sits in the middle of LIKE-operator tests:
test_alter_type_on_compact_storage_with_no_regular_columns_does_not_crash
Move it so LIKE test cases are contiguous.
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
With this patch the logic for walking all nested types is moved to a
helper function. It also fixes reversed_type_impl not being handled in
references_duration.
Signed-off-by: Rafael Ávila de Espíndola <espindola@scylladb.com>
Match SQL's LIKE in allowing an empty pattern, which matches only
an empty text field.
Tests: unit (dev)
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
We were missing calls to underlying_type in a few locations and so the
insert would think the given literal was invalid and the select would
refuse to fetch a UDT field.
Fixes#4672
Signed-off-by: Rafael Ávila de Espíndola <espindola@scylladb.com>
Message-Id: <20190708200516.59841-1-espindola@scylladb.com>
"
Implement LIKE parsing, intermediate representation, and query processing. Add tests
for this implementation (leaving the LIKE functionality tests in
tests/like_matcher_test.cc).
Refs #4477.
"
* 'finish-like' of https://github.com/dekimir/scylla:
cql3: Add LIKE operator to CQL grammar
cql3: Ensure LIKE filtering for partition columns
cql3: Add LIKE restriction
cql3: Add LIKE relation
config_file and db::config are soon not going to be copyable. The reason is that
in order to support live updating, we'll need per-shard copies of each value,
and per-shard tracking of references to values. While these can be copied, it
will be an asycnronous operation and thus cannot be done from a copy constructor.
So to prepare for these changes, replace all copies of db::config by references
and delete config_file's copy constructor.
Some existing references had to be made const in order to adapt the const-ness
of db::config now being propagated (rather than being terminated by a non-const
copy).
"
If the database supports infinite bound range deletions,
CQL layer will no longer throw an error indicating that both ranges
need to be specified.
Fixes#432
Update test_range_deletion_scenarios unit test accordingly.
"
* 'cql3-lift-infinite-bound-check' of https://github.com/bhalevy/scylla:
cql3: lift infinite bound check if it's supported
service: enable infinite bound range deletions with mc
database: add flag for infinite bound range deletions
If the database supports infinite bound range deletions,
CQL layer will no longer throw an error indicating that both ranges
need to be specified.
[bhalevy] Update test_range_deletion_scenarios unit test accordingly.
Fixes#432
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
When a column is not present in the select clause, but used for
filtering, it usually needs to be fetched from replicas.
Sometimes it can be avoided, e.g. if primary key columns form a valid
prefix - then, they will be optimized out before filtering itself.
However, clustering key prefix can only be qualified for this
optimization if the whole partition key is restricted - otherwise
the clustering columns still need to be present for filtering.
This commit also fixes tests in cql_query_test suite, because they now
expect more values - columns fetched for filtering will be present as
well (only internally, the clients receive only data they asked for).
Fixes#4541
Message-Id: <f08ebae5562d570ece2bb7ee6c84e647345dfe48.1560410018.git.sarna@scylladb.com>
GROUP BY is currently supported by simple_selection, the class used
when all selectors are simple. But when selectors are mixed, we use
selection_with_processing, which does not yet support GROUP BY. This
patch fixes that.
It also adapts one testcase in filtering_test to the new behavior of
simple_selector. The test currently expects the last value seen, but
simple_selector now outputs the first value seen.
(More details: the WHERE clause implicitly selects the columns it
references, and unit tests are forced to provide expected values for
these columns. The user-visible result is unchanged in the test;
users never see the WHERE column values due to filtering in
cql::transport, outside unit tests.)
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
Scylla currently rejects SELECT statements with both simple and
aggregate selectors, but Cassandra allows them. This patch brings
parity to Scylla.
Fixes#4447.
Tests: unit (dev)
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
"
Cassandra has supported GROUP BY in SELECT statements since 2016
(v3.10), while ScyllaDB currently treats it as a syntax error. To
achieve parity with Cassandra in this important bit of functionality,
this patch adds full support for GROUP BY, from parsing to validation
to implementation to testing.
"
* 'groupby-implPP' of https://github.com/dekimir/scylla:
Implement grouping in selection processing
Propagate GROUP BY indices to result_set_builder
Process GROUP BY columns into select_statement
Parse GROUP BY clause, store column identifiers
Make result_set_builder obey its _group_by_cell_indices by recognizing
group boundaries and resetting the selectors.
Also make simple_selectors work correctly when grouping.
Fixes#2206.
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
"
gcc 9 complains a lot about pessimizing moves, narrowing conversions, and
has tighter deduction rules, plus other nice warnings. Fix problems found
by it, and make some non-problems compile without warnings.
"
* tag 'gcc9/v1' of https://github.com/avikivity/scylla:
types: fix pessimizing moves
thrift: fix pessimizing moves
tests: fix pessimizing moves
tests: cql_query_test: silence narrowing conversion warning
test: cql_auth_syntax_test: fix ambiguity due to parser uninitialized<T>
table: fix potentially wrong schema when reading from zero sstables
storage_proxy: fix pessimizing moves
memtable: fix pessimizing moves
IDL: silence narrowing conversion in bool serializer
compaction: fix pessimizing moves
cache: fix pessimizing moves
locator: fix pessimizing moves
database: fix pessimizing moves
cql: fix pessimizing moves
cql parser: fix conversion from uninitalized<T> to optional<T> with gcc 9
Many tests verify exception messages. Currently, they do so via
verbose lambdas or inner functions that hide test-failure locations.
This patch adds utilities for quick creation of message-checking tests
and replaces existing ad-hoc methods with these new utilities.
Tests: unit (dev)
Signed-off-by: Dejan Mircevski <dejan@scylladb.com>
Message-Id: <20190506210006.124645-1-dejan@scylladb.com>
There was nothing keeping the verify lambda alive after the return. It
worked most of the time since the only state kept by the lambda was
a pointer to cql_test_env.
Signed-off-by: Rafael Ávila de Espíndola <espindola@scylladb.com>
Message-Id: <20190426203823.15562-1-espindola@scylladb.com>
"
Previously we weren't validating elements of collections so it
was possible to add non-UTF-8 string to a column with type
list<text>.
Tests: unit(release)
Fixes#4009
"
* 'haaawk/4009/v5' of github.com:scylladb/seastar-dev:
types: Test correct map validation
types: Test correct in clause validation
types: Test correct tuple validation
types: Test correct set validation
types: Test correct list validation
types: Add test_tuple_elements_validation
types: Add test_in_clause_validation
types: Add test_map_elements_validation
types: Add test_set_elements_validation
types: Add test_list_elements_validation
types: Validate input when tuples
types: Validate input when parsing a set
types: Validate input when parsing a map
types: Validate input when parsing a list
types: Implement validation for tuple
types: Implement validation for set
types: Implement validation for map
types: Implement validation for list
types: Add cql_serialization_format parameter to validate
