regression-test/suites/nereids_p0/test_dict_with_null.groovy

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suite("dict_with_null", "query") {
    sql "SET enable_nereids_planner=true"
    sql "SET enable_fallback_to_original_planner=false"
    def tableName = "test_dict_with_null"
    sql "DROP TABLE IF EXISTS ${tableName}"
    sql """
        CREATE TABLE IF NOT EXISTS ${tableName} (
          c_int INT,
          c_string VARCHAR(10)
        )
        DISTRIBUTED BY HASH(c_int) BUCKETS 1
        PROPERTIES (
          "replication_num" = "1"
        )
    """

    // Here insert all rows in one statement to make sure they are in one same segment.
    // Insert 100 + 1 rows because `SegmentIterator` will read 100 rows in the first time.
    // The first 100 rows are all null to make no record be inserted into dictionary at the first read time.
    def insert_sql = "insert into ${tableName} values "
    for (int i in 1..100) {
        if (i != 1) {
            insert_sql += ", "
        }
        insert_sql += "(${i}, null)"
    }
    insert_sql += ", (101, 'abc')"

    sql insert_sql
    qt_sql1 "select * from test_dict_with_null where c_string > '0'"
    qt_sql2 "select * from test_dict_with_null where c_string < 'dfg'"
    qt_sql3 "select * from test_dict_with_null where c_string = 'abc'"
    qt_sql4 "select * from test_dict_with_null where c_string is null order by c_int desc"
}