adelapena commented on code in PR #2156:
URL: https://github.com/apache/cassandra/pull/2156#discussion_r1138587900
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src/java/org/apache/cassandra/cql3/statements/schema/DropFunctionStatement.java:
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@@ -120,9 +121,28 @@ public Keyspaces apply(Keyspaces schema)
if (!dependentAggregates.isEmpty())
throw ire("Function '%s' is still referenced by aggregates %s",
name, dependentAggregates);
+ String dependentMasks = keyspace.tables.stream()
+ .filter(table ->
hasDependingMask(table, function))
+ .map(table -> table.name)
+ .collect(joining(", "));
Review Comment:
I have just tried to do that with two new
`KeyspaceMetadata#tablesUsingFunction(Function)` and
`TableMetadata#dependsOn(Function)` methods.
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