phoenix5-spark3-it/src/it/java/org/apache/phoenix/spark/AggregateIT.java [54:89]:
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    protected void testCountNullInNonEmptyKeyValueCF(int columnEncodedBytes) throws Exception {
        try (Connection conn = DriverManager.getConnection(getUrl())) {
            //Type is INT
            String intTableName=generateUniqueName();
            String sql="create table " + intTableName + " (mykey integer not null primary key, A.COLA integer, B.COLB integer) "
                    + "IMMUTABLE_ROWS=true, IMMUTABLE_STORAGE_SCHEME = ONE_CELL_PER_COLUMN, COLUMN_ENCODED_BYTES = " + columnEncodedBytes + ", DISABLE_WAL=true";

            conn.createStatement().execute(sql);
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (1,1)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (2,1)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (3,1,2)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (4,1)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (5,1)");
            conn.commit();

            sql="select count(*) from "+intTableName;
            QueryBuilder queryBuilder = new QueryBuilder()
                .setSelectExpression("COUNT(*)")
                .setFullTableName(intTableName);
            ResultSet rs = executeQuery(conn, queryBuilder);
            assertTrue(rs.next());
            assertEquals(5, rs.getLong(1));

            sql="select count(*) from "+intTableName + " where b.colb is not null";
            queryBuilder.setWhereClause("`B.COLB` IS NOT NULL");
            rs = executeQuery(conn, queryBuilder);
            assertTrue(rs.next());
            assertEquals(1, rs.getLong(1));

            sql="select count(*) from "+intTableName + " where b.colb is null";
            queryBuilder.setWhereClause("`B.COLB` IS NULL");
            rs = executeQuery(conn, queryBuilder);
            assertTrue(rs.next());
            assertEquals(4, rs.getLong(1));
        }
    }
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phoenix5-spark/src/it/java/org/apache/phoenix/spark/AggregateIT.java [54:89]:
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    protected void testCountNullInNonEmptyKeyValueCF(int columnEncodedBytes) throws Exception {
        try (Connection conn = DriverManager.getConnection(getUrl())) {
            //Type is INT
            String intTableName=generateUniqueName();
            String sql="create table " + intTableName + " (mykey integer not null primary key, A.COLA integer, B.COLB integer) "
                    + "IMMUTABLE_ROWS=true, IMMUTABLE_STORAGE_SCHEME = ONE_CELL_PER_COLUMN, COLUMN_ENCODED_BYTES = " + columnEncodedBytes + ", DISABLE_WAL=true";

            conn.createStatement().execute(sql);
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (1,1)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (2,1)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (3,1,2)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (4,1)");
            conn.createStatement().execute("UPSERT INTO "+intTableName+" VALUES (5,1)");
            conn.commit();

            sql="select count(*) from "+intTableName;
            QueryBuilder queryBuilder = new QueryBuilder()
                .setSelectExpression("COUNT(*)")
                .setFullTableName(intTableName);
            ResultSet rs = executeQuery(conn, queryBuilder);
            assertTrue(rs.next());
            assertEquals(5, rs.getLong(1));

            sql="select count(*) from "+intTableName + " where b.colb is not null";
            queryBuilder.setWhereClause("`B.COLB` IS NOT NULL");
            rs = executeQuery(conn, queryBuilder);
            assertTrue(rs.next());
            assertEquals(1, rs.getLong(1));

            sql="select count(*) from "+intTableName + " where b.colb is null";
            queryBuilder.setWhereClause("`B.COLB` IS NULL");
            rs = executeQuery(conn, queryBuilder);
            assertTrue(rs.next());
            assertEquals(4, rs.getLong(1));
        }
    }
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