Avi Kivity d57395dce9 cql: prevent overflow when computing averages ...

Currently, we use type type of the column as the accumulator when we
average it. This can easily overflow, e.g. (2^31-1)+(3) = overflow.

Fix by using __int128 for the accumulator.  It's not standard, but
it's way more efficient and simpler than the alternatives.

Inspired by CASSANDRA-12417, but much simpler due to the availability
of __int128.
Message-Id: <20171112173529.30764-1-avi@scylladb.com>

2017-11-13 08:53:59 +01:00

..

functions

cql: prevent overflow when computing averages

2017-11-13 08:53:59 +01:00

restrictions

cql3/restrictions: Add statement_restrictions::index_restrictions() helper

2017-11-03 09:10:43 +02:00

selection

cql3/selectable: Add selectable::with_cast for CAST AS functions.

2017-10-07 21:04:40 +02:00

statements

cql3: Secondary-index backed select statements

2017-11-03 10:12:58 +02:00

abstract_marker.cc

abstract_marker::raw::prepare: add missing return statement

2017-08-22 15:06:18 +03:00

abstract_marker.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

assignment_testable.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

attributes.cc

Don't catch polymorphic exceptions by value

2017-07-27 09:39:58 +03:00

attributes.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

cf_name.cc

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

cf_name.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

column_condition.cc

Support duration CQL native type

2017-08-10 15:01:10 -04:00

column_condition.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

column_identifier.cc

schema: Revert back to the 1.7 layout of static compact tables in memory

2017-07-19 09:52:15 +02:00

column_identifier.hh

cql3: Add to_cql_string() to column_identifier class

2017-05-04 14:59:11 +03:00

column_specification.cc

cql3: Add column_specification::all_in_same_table() helper

2016-05-16 14:13:31 +03:00

column_specification.hh

cql3: Add column_specification::all_in_same_table() helper

2016-05-16 14:13:31 +03:00

constants.cc

Use abort() instead of assert + throw in unreachable code

2017-09-03 11:07:27 +03:00

constants.hh

Support duration CQL native type

2017-08-10 15:01:10 -04:00

cql3_type.cc

Support duration CQL native type

2017-08-10 15:01:10 -04:00

cql3_type.hh

Support duration CQL native type

2017-08-10 15:01:10 -04:00

cql_statement.hh

Merge seatar upstream (seastar namespace)

2017-05-21 12:26:15 +03:00

Cql.g

cql3: Add support for CAST AS functions to ANTLR grammar.

2017-10-07 21:04:40 +02:00

error_collector.hh

cql: Eagerly throw lexing and parsing exceptions

2017-07-01 12:13:44 +03:00

error_listener.hh

cql3: error_listener: add virtual destructor

2017-06-29 10:51:20 +02:00

index_name.cc

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

index_name.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

keyspace_element_name.cc

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

keyspace_element_name.hh

Merge seatar upstream (seastar namespace)

2017-05-21 12:26:15 +03:00

lists.cc

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

lists.hh

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

maps.cc

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

maps.hh

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

multi_column_relation.hh

cql3: Allow renaming an identifier in a relation

2016-12-20 13:06:11 +00:00

operation_impl.hh

counters/cql: allow wormholing actual counter values (with shards) via cql

2017-02-22 09:19:46 +00:00

operation.cc

cql3: operation: correctly format error messages

2017-07-02 20:06:50 +02:00

operation.hh

cql3: operation: correctly format error messages

2017-07-02 20:06:50 +02:00

operator.cc

CQL parser: "CREATE MATERIALIZED VIEW" statement

2016-10-06 15:42:37 +03:00

operator.hh

cql3: Make operator_type class non-copyable

2017-11-03 09:10:43 +02:00

prepared_statements_cache.hh

utils + cql3: use a functor class instead of std::function

2017-10-05 15:29:51 +01:00

query_options_fwd.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

query_options.cc

query_options: Allows creating query_options from query_options

2017-07-13 14:02:11 +03:00

query_options.hh

query_options: Allows creating query_options from query_options

2017-07-13 14:02:11 +03:00

query_processor.cc

cql3/query_processor: Fix formatting

2017-10-21 13:53:03 -04:00

query_processor.hh

cql3/query_processor: Fix formatting

2017-10-21 13:53:03 -04:00

relation.cc

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

relation.hh

cql3: Allow renaming an identifier in a relation

2016-12-20 13:06:11 +00:00

result_set.cc

cql3::metadata: fix undefined evaluation order in constructor

2017-04-24 10:40:12 +03:00

result_set.hh

cql3::metadata: fix undefined evaluation order in constructor

2017-04-24 10:40:12 +03:00

sets.cc

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

sets.hh

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

single_column_relation.cc

Generate an error when CONTAINS is used on a non-collection column

2017-07-11 11:30:49 +02:00

single_column_relation.hh

Support duration CQL native type

2017-08-10 15:01:10 -04:00

stats.hh

cql3: add more metrics for batch statements

2017-01-20 13:19:00 +02:00

term.hh

cql3: Introduce raw_value and raw_value_view types

2017-01-26 13:50:04 +02:00

token_relation.cc

to_string: move standard container overloads of to_string to std:: namespace

2017-04-17 23:03:15 +03:00

token_relation.hh

cql3: Allow renaming an identifier in a relation

2016-12-20 13:06:11 +00:00

tuples.hh

cql3/tuples: Don't catch polymorphic exception by value

2017-07-26 19:28:35 +03:00

type_cast.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

untyped_result_set.cc

untyped_result_set: make untyped_result_set::row a namespace scope class

2017-09-18 15:15:15 +02:00

untyped_result_set.hh

untyped_result_set: make untyped_result_set::row a namespace scope class

2017-09-18 15:15:15 +02:00

update_parameters.cc

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

update_parameters.hh

mutation: Set cell using clustering_key_prefix

2017-05-04 15:59:50 +02:00

user_options.cc

cql3::user_options: Add options wrapper type

2016-04-11 09:10:41 +00:00

user_options.hh

cql3::user_options: Add options wrapper type

2016-04-11 09:10:41 +00:00

user_types.cc

cql3/user_types: Unset value support

2017-01-27 09:24:36 +02:00

user_types.hh

cql3: Introduce raw_value and raw_value_view types

2017-01-26 13:50:04 +02:00

ut_name.cc

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

ut_name.hh

Fix pre-ScyllaDB copyright statements

2016-04-08 08:12:47 +03:00

util.hh

cql: Eagerly throw lexing and parsing exceptions

2017-07-01 12:13:44 +03:00

values.hh

cql3/values.hh: Fix to_bytes_opt(raw_value)

2017-01-30 10:49:31 +02:00

variable_specifications.cc

cql3: Fix variable_specifications class get_partition_key_bind_indexes()

2017-05-10 12:38:18 +03:00

variable_specifications.hh

cql3: Fix variable_specifications class get_partition_key_bind_indexes()

2017-05-10 12:38:18 +03:00