maedhroz commented on code in PR #4290:
URL: https://github.com/apache/cassandra/pull/4290#discussion_r2334906276
##########
test/unit/org/apache/cassandra/index/sai/cql/AllowFilteringTest.java:
##########
@@ -433,4 +433,83 @@ public void testAllowFilteringDuringIndexBuild() throws
Throwable
execute("SELECT * FROM %s WHERE v=0");
execute("SELECT * FROM %s WHERE v=0 ALLOW FILTERING");
}
+
+ @Test
+ public void testAllowFilteringWithLikePrefixPostFiltering()
+ {
+ createTable("CREATE TABLE %S (k1 int, k2 text, k3 int, PRIMARY KEY
(k1))");
+ createIndex("CREATE INDEX ON %s(k3) USING 'sai'");
+
+ execute("insert into %s (k1, k2, k3) values (1, 'fo', 1)");
+ execute("insert into %s (k1, k2, k3) values (2, 'foo', 2)");
+ execute("insert into %s (k1, k2, k3) values (3, 'fo', 3)");
+ execute("insert into %s (k1, k2, k3) values (4, 'ba', 4)");
+ execute("insert into %s (k1, k2, k3) values (5, 'bar', 5)");
+
+ assertRowCount(execute("SELECT * FROM %s WHERE k3 > 0 AND k2 LIKE
'f%%' ALLOW FILTERING"), 3);
+ assertRowCount(execute("SELECT * FROM %s WHERE k3 > 0 AND k2 LIKE
'ca%%' ALLOW FILTERING"), 0);
+ assertThatThrownBy(() -> execute("SELECT * FROM %s WHERE k3 > 0 AND k2
LIKE 'f%%'"))
+ .hasMessageContaining("use ALLOW FILTERING")
Review Comment:
nit: Can we use `StatementRestrictions.REQUIRES_ALLOW_FILTERING_MESSAGE`?
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