regression-test/suites/rollup/test_materialized_view_hll.groovy

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suite("test_materialized_view_hll", "rollup") {
    def tbName1 = "test_materialized_view_hll"

    def getJobState = { tableName ->
        def jobStateResult = sql """  SHOW ALTER TABLE MATERIALIZED VIEW WHERE TableName='${tableName}' ORDER BY CreateTime DESC LIMIT 1; """
        return jobStateResult[0][8]
    }
    sql "DROP TABLE IF EXISTS ${tbName1}"
    sql """
            CREATE TABLE IF NOT EXISTS ${tbName1}(
                record_id int, 
                seller_id int, 
                store_id int, 
                sale_date date, 
                sale_amt bigint
            ) 
            DISTRIBUTED BY HASH(record_id) properties("replication_num" = "1");
        """

    sql "CREATE materialized VIEW amt_count AS SELECT store_id, hll_union(hll_hash(sale_amt)) FROM ${tbName1} GROUP BY store_id;"
    max_try_secs = 60
    while (max_try_secs--) {
        String res = getJobState(tbName1)
        if (res == "FINISHED") {
            break
        } else {
            Thread.sleep(2000)
            if (max_try_secs < 1) {
                println "test timeout," + "state:" + res
                assertEquals("FINISHED",res)
            }
        }
    }

    qt_sql "DESC ${tbName1} ALL;"

    sql "insert into ${tbName1} values(1, 1, 1, '2020-05-30',100);"
    sql "insert into ${tbName1} values(2, 1, 1, '2020-05-30',100);"
    qt_sql "SELECT store_id, hll_union_agg(hll_hash(sale_amt)) FROM ${tbName1} GROUP BY store_id;"

    explain {
        sql("SELECT store_id, hll_union_agg(hll_hash(sale_amt)) FROM ${tbName1} GROUP BY store_id;")
        contains "(amt_count)"
    }

    sql "DROP TABLE ${tbName1} FORCE;"
}