3 Commits

Author	SHA1	Message	Date
Duarte Nunes	42f407ad9e	row: Use cached hash for hash calculation ... This entails doing the cell hash calculation slightly differently, where the cell is hashed individually, the resulting hash being added to the running one. Instead of propagating a flag all through the call chain, we detect whether we are in the new mode by the employed hash algorithm. Signed-off-by: Duarte Nunes <duarte@scylladb.com>	2018-02-01 01:02:49 +00:00
Duarte Nunes	99a3e3aa76	mutation_partition: Allow caching cell hashes ... We add storage to a row to hold the cached hashes of each individual cell. We don't store the hash in each cell because that would a) change the cell equality function, and b) require us to change a cell in a potentially fragmented buffer. Signed-off-by: Duarte Nunes <duarte@scylladb.com>	2018-02-01 01:02:47 +00:00
Duarte Nunes	041acb7aea	query: Add class to encapsulate digest algorithm ... This patch paves the way for us to encapsulate the actual digest algorithm used for a query. The digester class dispatches to a concrete implementation based on the digest algorithm being used. It wraps the xxHash algorithm to provide a 128 bit hash, which is the size of digest expected by the inter-node protocol. Signed-off-by: Duarte Nunes <duarte@scylladb.com>	2018-02-01 00:22:50 +00:00