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Merge 'Fix parsing of initial tablets by ALTER' from Pavel Emelyanov

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If the user wants to change the default initial tablets value, it uses ALTER KEYSPACE statement. However, specifying `WITH tablets = { initial: $value }`  will take no effect, because statement analyzer only applies `tablets` parameters together with the `replication` ones, so the working statement should be `WITH replication = $old_parameters AND tablets = ...` which is not very convenient.

This PR changes the analyzer so that altering `tablets` happens independently from `replication`. Test included.

fixes: #18801

Closes scylladb/scylladb#18899

* github.com:scylladb/scylladb:
  cql-pytest: Add validation of ALTER KEYSPACE WITH TABLETS
  cql3: Fix parsing of ALTER KEYSPACE's tablets parameters
  cql3: Remove unused ks_prop_defs/prepare_options() argument
This commit is contained in:
Nadav Har'El
2024-05-27 23:10:38 +03:00
parent e42d83dc46 1003391ed6
commit b7fa5261c8
2 changed files with 19 additions and 5 deletions
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14
test/cql-pytest/test_tablets.py
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@@ -100,6 +100,20 @@ def test_alter_changes_initial_tablets(cql, skip_without_tablets):
assert res.initial_tablets == 2
def test_alter_changes_initial_tablets_short(cql, skip_without_tablets):
ksdef = "WITH replication = {'class': 'NetworkTopologyStrategy', 'replication_factor': 1} AND tablets = {'initial': 1};"
with new_test_keyspace(cql, ksdef) as keyspace:
orig_rep = cql.execute(f"SELECT replication FROM system_schema.keyspaces WHERE keyspace_name = '{keyspace}'").one()
cql.execute(f"ALTER KEYSPACE {keyspace} WITH tablets = {{'initial': 2}};")
res = cql.execute(f"SELECT * FROM system_schema.scylla_keyspaces WHERE keyspace_name = '{keyspace}'").one()
assert res.initial_tablets == 2
# Test that replication parameters didn't change
rep = cql.execute(f"SELECT replication FROM system_schema.keyspaces WHERE keyspace_name = '{keyspace}'").one()
assert rep.replication == orig_rep.replication
# Test that initial number of tablets is preserved in describe
def test_describe_initial_tablets(cql, skip_without_tablets):
ksdef = "WITH REPLICATION = { 'class' : 'NetworkTopologyStrategy', 'replication_factor' : '1' } " \