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cql: add "cql_row_ttl" cluster feature

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This patch adds a new cluster feature "CQL_ROW_TTL", for the new CQL
per-row TTL feature.

With this patch, this node reports supporting this feature, but the CQL
per-row TTL feature can only be used once all the nodes in the cluster
supports the feature. In other words, user requests to enable per-row TTL
on a table should check this feature flag (on the whole cluster) before
proceeding.

This is needed because the implementation of the per-row-TTL expiration
requires the cooperation of all nodes to participate in scanning for
expired items, so the feature can't be trusted until all nodes participate
in it.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
This commit is contained in:
Nadav Har'El
2026-01-22 09:44:54 +02:00
parent 0d6b7a6211
commit 4f4e93b695
1 changed files with 1 additions and 0 deletions
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gms/feature_service.hh
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@@ -81,6 +81,7 @@ public:
gms::feature user_defined_functions { *this, "UDF"sv };
gms::feature alternator_streams { *this, "ALTERNATOR_STREAMS"sv };
gms::feature alternator_ttl { *this, "ALTERNATOR_TTL"sv };
gms::feature cql_row_ttl { *this, "CQL_ROW_TTL"sv };
gms::feature range_scan_data_variant { *this, "RANGE_SCAN_DATA_VARIANT"sv };
gms::feature cdc_generations_v2 { *this, "CDC_GENERATIONS_V2"sv };
gms::feature user_defined_aggregates { *this, "UDA"sv };