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query: add full_slice

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query::full_slice is a partiton slice which has full clustering row
ranges for all partition keys and no per-partition row limit.
Options and columns are not set.

It is used as a helper object in cases when a reference to
partition_slice is needed but the user code needs just all data there is
(an example of such case would be sstable compaction).

Signed-off-by: Paweł Dziepak <pdziepak@scylladb.com>
This commit is contained in:
Paweł Dziepak
2016-06-23 13:28:34 +01:00
parent 599ed7f1ed
commit 3c08ffb275
2 changed files with 6 additions and 0 deletions
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4
query-request.hh
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@@ -157,6 +157,10 @@ public:
constexpr auto max_partitions = std::numeric_limits<uint32_t>::max(); constexpr auto max_partitions = std::numeric_limits<uint32_t>::max();
// This is a partition slice which a full clustering row range and maximum
// per-partition row limit. No options or columns are set.
extern const query::partition_slice full_slice;
// Full specification of a query to the database. // Full specification of a query to the database.
// Intended for passing across replicas. // Intended for passing across replicas.
// Can be accessed across cores. // Can be accessed across cores.

2
query.cc
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@@ -34,6 +34,8 @@ namespace query {
const partition_range full_partition_range = partition_range::make_open_ended_both_sides(); const partition_range full_partition_range = partition_range::make_open_ended_both_sides();
const query::partition_slice full_slice = query::partition_slice({ query::clustering_range::make_open_ended_both_sides() }, { }, { }, { });
std::ostream& operator<<(std::ostream& out, const specific_ranges& s); std::ostream& operator<<(std::ostream& out, const specific_ranges& s);
std::ostream& operator<<(std::ostream& out, const partition_slice& ps) { std::ostream& operator<<(std::ostream& out, const partition_slice& ps) {