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0001 --
0002 -- Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
0003 --
0004 --
0005 -- AGGREGATES [Part 1]
0006 -- https://github.com/postgres/postgres/blob/REL_12_BETA2/src/test/regress/sql/aggregates.sql#L1-L143
0007 
0008 -- avoid bit-exact output here because operations may not be bit-exact.
0009 -- SET extra_float_digits = 0;
0010 
0011 -- This test file was converted from postgreSQL/aggregates_part1.sql.
0012 
0013 SELECT avg(udf(four)) AS avg_1 FROM onek;
0014 
0015 SELECT udf(avg(a)) AS avg_32 FROM aggtest WHERE a < 100;
0016 
0017 -- In 7.1, avg(float4) is computed using float8 arithmetic.
0018 -- Round the result to 3 digits to avoid platform-specific results.
0019 
0020 select CAST(avg(udf(b)) AS Decimal(10,3)) AS avg_107_943 FROM aggtest;
0021 -- `student` has a column with data type POINT, which is not supported by Spark [SPARK-27766]
0022 -- SELECT avg(gpa) AS avg_3_4 FROM ONLY student;
0023 
0024 SELECT sum(udf(four)) AS sum_1500 FROM onek;
0025 SELECT udf(sum(a)) AS sum_198 FROM aggtest;
0026 SELECT udf(udf(sum(b))) AS avg_431_773 FROM aggtest;
0027 -- `student` has a column with data type POINT, which is not supported by Spark [SPARK-27766]
0028 -- SELECT sum(gpa) AS avg_6_8 FROM ONLY student;
0029 
0030 SELECT udf(max(four)) AS max_3 FROM onek;
0031 SELECT max(udf(a)) AS max_100 FROM aggtest;
0032 SELECT udf(udf(max(aggtest.b))) AS max_324_78 FROM aggtest;
0033 -- `student` has a column with data type POINT, which is not supported by Spark [SPARK-27766]
0034 -- SELECT max(student.gpa) AS max_3_7 FROM student;
0035 
0036 SELECT stddev_pop(udf(b)) FROM aggtest;
0037 SELECT udf(stddev_samp(b)) FROM aggtest;
0038 SELECT var_pop(udf(b)) FROM aggtest;
0039 SELECT udf(var_samp(b)) FROM aggtest;
0040 
0041 SELECT udf(stddev_pop(CAST(b AS Decimal(38,0)))) FROM aggtest;
0042 SELECT stddev_samp(CAST(udf(b) AS Decimal(38,0))) FROM aggtest;
0043 SELECT udf(var_pop(CAST(b AS Decimal(38,0)))) FROM aggtest;
0044 SELECT var_samp(udf(CAST(b AS Decimal(38,0)))) FROM aggtest;
0045 
0046 -- population variance is defined for a single tuple, sample variance
0047 -- is not
0048 SELECT udf(var_pop(1.0)), var_samp(udf(2.0));
0049 SELECT stddev_pop(udf(CAST(3.0 AS Decimal(38,0)))), stddev_samp(CAST(udf(4.0) AS Decimal(38,0)));
0050 
0051 
0052 -- verify correct results for null and NaN inputs
0053 select sum(udf(CAST(null AS int))) from range(1,4);
0054 select sum(udf(CAST(null AS long))) from range(1,4);
0055 select sum(udf(CAST(null AS Decimal(38,0)))) from range(1,4);
0056 select sum(udf(CAST(null AS DOUBLE))) from range(1,4);
0057 select avg(udf(CAST(null AS int))) from range(1,4);
0058 select avg(udf(CAST(null AS long))) from range(1,4);
0059 select avg(udf(CAST(null AS Decimal(38,0)))) from range(1,4);
0060 select avg(udf(CAST(null AS DOUBLE))) from range(1,4);
0061 select sum(CAST(udf('NaN') AS DOUBLE)) from range(1,4);
0062 select avg(CAST(udf('NaN') AS DOUBLE)) from range(1,4);
0063 
0064 -- [SPARK-27768] verify correct results for infinite inputs
0065 -- [SPARK-28291] UDFs cannot be evaluated within inline table definition
0066 -- SELECT avg(CAST(x AS DOUBLE)), var_pop(CAST(x AS DOUBLE))
0067 -- FROM (VALUES (CAST(udf('1') AS DOUBLE)), (CAST(udf('Infinity') AS DOUBLE))) v(x);
0068 SELECT avg(CAST(udf(x) AS DOUBLE)), var_pop(CAST(udf(x) AS DOUBLE))
0069 FROM (VALUES ('Infinity'), ('1')) v(x);
0070 SELECT avg(CAST(udf(x) AS DOUBLE)), var_pop(CAST(udf(x) AS DOUBLE))
0071 FROM (VALUES ('Infinity'), ('Infinity')) v(x);
0072 SELECT avg(CAST(udf(x) AS DOUBLE)), var_pop(CAST(udf(x) AS DOUBLE))
0073 FROM (VALUES ('-Infinity'), ('Infinity')) v(x);
0074 
0075 
0076 -- test accuracy with a large input offset
0077 SELECT avg(udf(CAST(x AS DOUBLE))), udf(var_pop(CAST(x AS DOUBLE)))
0078 FROM (VALUES (100000003), (100000004), (100000006), (100000007)) v(x);
0079 SELECT avg(udf(CAST(x AS DOUBLE))), udf(var_pop(CAST(x AS DOUBLE)))
0080 FROM (VALUES (7000000000005), (7000000000007)) v(x);
0081 
0082 -- SQL2003 binary aggregates [SPARK-23907]
0083 -- SELECT regr_count(b, a) FROM aggtest;
0084 -- SELECT regr_sxx(b, a) FROM aggtest;
0085 -- SELECT regr_syy(b, a) FROM aggtest;
0086 -- SELECT regr_sxy(b, a) FROM aggtest;
0087 -- SELECT regr_avgx(b, a), regr_avgy(b, a) FROM aggtest;
0088 -- SELECT regr_r2(b, a) FROM aggtest;
0089 -- SELECT regr_slope(b, a), regr_intercept(b, a) FROM aggtest;
0090 SELECT udf(covar_pop(b, udf(a))), covar_samp(udf(b), a) FROM aggtest;
0091 SELECT corr(b, udf(a)) FROM aggtest;
0092 
0093 
0094 -- test accum and combine functions directly [SPARK-23907]
0095 -- CREATE TABLE regr_test (x float8, y float8);
0096 -- INSERT INTO regr_test VALUES (10,150),(20,250),(30,350),(80,540),(100,200);
0097 -- SELECT count(*), sum(x), regr_sxx(y,x), sum(y),regr_syy(y,x), regr_sxy(y,x)
0098 -- FROM regr_test WHERE x IN (10,20,30,80);
0099 -- SELECT count(*), sum(x), regr_sxx(y,x), sum(y),regr_syy(y,x), regr_sxy(y,x)
0100 -- FROM regr_test;
0101 -- SELECT float8_accum('{4,140,2900}'::float8[], 100);
0102 -- SELECT float8_regr_accum('{4,140,2900,1290,83075,15050}'::float8[], 200, 100);
0103 -- SELECT count(*), sum(x), regr_sxx(y,x), sum(y),regr_syy(y,x), regr_sxy(y,x)
0104 -- FROM regr_test WHERE x IN (10,20,30);
0105 -- SELECT count(*), sum(x), regr_sxx(y,x), sum(y),regr_syy(y,x), regr_sxy(y,x)
0106 -- FROM regr_test WHERE x IN (80,100);
0107 -- SELECT float8_combine('{3,60,200}'::float8[],ELECT CAST(udf(covar_pop(b, udf(a))) AS '{0,0,0}'::float8[]);
0108 -- SELECT float8_combine('{0,0,0}'::float8[], '{2,180,200}'::float8[]);
0109 -- SELECT float8_combine('{3,60,200}'::float8[], '{2,180,200}'::float8[]);
0110 -- SELECT float8_regr_combine('{3,60,200,750,20000,2000}'::float8[],
0111 --                            '{0,0,0,0,0,0}'::float8[]);
0112 -- SELECT float8_regr_combine('{0,0,0,0,0,0}'::float8[],
0113 --                            '{2,180,200,740,57800,-3400}'::float8[]);
0114 -- SELECT float8_regr_combine('{3,60,200,750,20000,2000}'::float8[],
0115 --                            '{2,180,200,740,57800,-3400}'::float8[]);
0116 -- DROP TABLE regr_test;
0117 
0118 
0119 -- test count, distinct
0120 SELECT count(udf(four)) AS cnt_1000 FROM onek;
0121 SELECT udf(count(DISTINCT four)) AS cnt_4 FROM onek;
0122 
0123 select ten, udf(count(*)), sum(udf(four)) from onek
0124 group by ten order by ten;
0125 
0126 select ten, count(udf(four)), udf(sum(DISTINCT four)) from onek
0127 group by ten order by ten;
0128 
0129 -- user-defined aggregates
0130 -- SELECT newavg(four) AS avg_1 FROM onek;
0131 -- SELECT newsum(four) AS sum_1500 FROM onek;
0132 -- SELECT newcnt(four) AS cnt_1000 FROM onek;
0133 -- SELECT newcnt(*) AS cnt_1000 FROM onek;
0134 -- SELECT oldcnt(*) AS cnt_1000 FROM onek;
0135 -- SELECT sum2(q1,q2) FROM int8_tbl;
0136 
0137 -- test for outer-level aggregates
0138 
0139 -- this should work
0140 select ten, udf(sum(distinct four)) from onek a
0141 group by ten
0142 having exists (select 1 from onek b where udf(sum(distinct a.four)) = b.four);
0143 
0144 -- this should fail because subquery has an agg of its own in WHERE
0145 select ten, sum(distinct four) from onek a
0146 group by ten
0147 having exists (select 1 from onek b
0148                where sum(distinct a.four + b.four) = udf(b.four));
0149 
0150 -- [SPARK-27769] Test handling of sublinks within outer-level aggregates.
0151 -- Per bug report from Daniel Grace.
0152 select
0153   (select udf(max((select i.unique2 from tenk1 i where i.unique1 = o.unique1))))
0154 from tenk1 o;