"
In Cassandra, row columns are stored in a BTree that uses the following
ordering on them:
- all atomic columns go first, then all multi-cell ones
- columns of both types (atomic and multi-cell) are
lexicographically ordered by name regarding each other
Scylla needs to store columns and their respective indices using the
same ordering as well as when reading them back.
Fixes#3853
Tests: unit {release}
+
Checked that the following SSTables are dumped fine using Cassandra's
sstabledump:
cqlsh:sst3> CREATE TABLE atomic_and_collection3 ( pk int, ck int, rc1 text, rc2 list<text>, rc3 text, rc4 list<text>, rc5 text, rc6 list<text>, PRIMARY KEY (pk, ck)) WITH compression = {'sstable_compression': ''};
cqlsh:sst3> INSERT INTO atomic_and_collection3 (pk, ck, rc1, rc4, rc5) VALUES (0, 0, 'hello', ['beautiful','world'], 'here');
<< flush >>
sstabledump:
[
{
"partition" : {
"key" : [ "0" ],
"position" : 0
},
"rows" : [
{
"type" : "row",
"position" : 96,
"clustering" : [ 0 ],
"liveness_info" : { "tstamp" : "1540599270139464" },
"cells" : [
{ "name" : "rc1", "value" : "hello" },
{ "name" : "rc5", "value" : "here" },
{ "name" : "rc4", "deletion_info" : { "marked_deleted" : "1540599270139463", "local_delete_time" : "1540599270" } },
{ "name" : "rc4", "path" : [ "45e22cb0-d97d-11e8-9f07-000000000000" ], "value" : "beautiful" },
{ "name" : "rc4", "path" : [ "45e22cb1-d97d-11e8-9f07-000000000000" ], "value" : "world" }
]
}
]
}
]
"
* 'projects/sstables-30/columns-proper-order/v1' of https://github.com/argenet/scylla:
tests: Test interleaved atomic and multi-cell columns written to SSTables 3.x.
sstables: Re-order columns (atomic first, then collections) for SSTables 3.x.
sstables: Use a compound structure for storing information used for reading columns.
(cherry picked from commit 75dbff984c)
b7b217cc43