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authorMichael Widenius <monty@mariadb.org>2018-03-09 14:05:35 +0200
committerMonty <monty@mariadb.org>2018-03-29 13:59:44 +0300
commita7abddeffa6a760ce948c2dfb007cdf3f1a369d5 (patch)
tree70eb743fa965a17380bbc0ac88ae79ca1075b896 /mysql-test/main/win_lead_lag.test
parentab1941266c59a19703a74b5593cf3f508a5752d7 (diff)
downloadmariadb-git-a7abddeffa6a760ce948c2dfb007cdf3f1a369d5.tar.gz
Create 'main' test directory and move 't' and 'r' there
Diffstat (limited to 'mysql-test/main/win_lead_lag.test')
-rw-r--r--mysql-test/main/win_lead_lag.test110
1 files changed, 110 insertions, 0 deletions
diff --git a/mysql-test/main/win_lead_lag.test b/mysql-test/main/win_lead_lag.test
new file mode 100644
index 00000000000..2824f83789c
--- /dev/null
+++ b/mysql-test/main/win_lead_lag.test
@@ -0,0 +1,110 @@
+create table t1 (
+ pk int primary key,
+ a int,
+ b int,
+ c char(10),
+ d decimal(10, 3),
+ e real
+);
+
+insert into t1 values
+( 1, 0, 1, 'one', 0.1, 0.001),
+( 2, 0, 2, 'two', 0.2, 0.002),
+( 3, 0, 3, 'three', 0.3, 0.003),
+( 4, 1, 2, 'three', 0.4, 0.004),
+( 5, 1, 1, 'two', 0.5, 0.005),
+( 6, 1, 1, 'one', 0.6, 0.006),
+( 7, 2, NULL, 'n_one', 0.5, 0.007),
+( 8, 2, 1, 'n_two', NULL, 0.008),
+( 9, 2, 2, NULL, 0.7, 0.009),
+(10, 2, 0, 'n_four', 0.8, 0.010),
+(11, 2, 10, NULL, 0.9, NULL);
+
+select pk,
+ lead(pk) over (order by pk),
+ lead(pk, 1) over (order by pk),
+ lead(pk, 2) over (order by pk),
+ lead(pk, 0) over (order by pk),
+ lead(pk, -1) over (order by pk),
+ lead(pk, -2) over (order by pk)
+from t1
+order by pk asc;
+
+select pk,
+ lag(pk) over (order by pk),
+ lag(pk, 1) over (order by pk),
+ lag(pk, 2) over (order by pk),
+ lag(pk, 0) over (order by pk),
+ lag(pk, -1) over (order by pk),
+ lag(pk, -2) over (order by pk)
+from t1
+order by pk asc;
+
+select pk, pk - 2,
+ lag(pk, pk - 2) over (order by pk),
+ lead(pk, pk - 2) over (order by pk)
+from t1
+order by pk asc;
+
+select pk, pk - 2,
+ lag(pk, pk + 2) over (order by pk),
+ lead(pk, pk + 2) over (order by pk)
+from t1
+order by pk asc;
+
+select pk, a,
+ lead(pk) over (partition by a order by pk),
+ lead(pk, 1) over (partition by a order by pk),
+ lead(pk, 2) over (partition by a order by pk),
+ lead(pk, 0) over (partition by a order by pk),
+ lead(pk, -1) over (partition by a order by pk),
+ lead(pk, -2) over (partition by a order by pk)
+from t1
+order by pk asc;
+
+select pk, a,
+ lag(pk) over (partition by a order by pk),
+ lag(pk, 1) over (partition by a order by pk),
+ lag(pk, 2) over (partition by a order by pk),
+ lag(pk, 0) over (partition by a order by pk),
+ lag(pk, -1) over (partition by a order by pk),
+ lag(pk, -2) over (partition by a order by pk)
+from t1
+order by pk asc;
+
+select pk, a, pk - 2,
+ lag(pk, pk - 2) over (partition by a order by pk),
+ lead(pk, pk - 2) over (partition by a order by pk),
+ lag(pk, a - 2) over (partition by a order by pk),
+ lead(pk, a - 2) over (partition by a order by pk)
+from t1
+order by pk asc;
+
+select pk, a, pk - 2,
+ lag(pk, pk + 2) over (partition by a order by pk),
+ lead(pk, pk + 2) over (partition by a order by pk),
+ lag(pk, a + 2) over (partition by a order by pk),
+ lead(pk, a + 2) over (partition by a order by pk)
+from t1
+order by pk asc;
+
+select pk, a, b, c, d, e,
+ lag(a) over (partition by a order by pk),
+ lag(b) over (partition by a order by pk),
+ lag(c) over (partition by a order by pk),
+ lag(d) over (partition by a order by pk),
+ lag(e) over (partition by a order by pk)
+from t1
+order by pk asc;
+
+select pk, a, b, a+b,
+ lag(a + b) over (partition by a order by pk)
+from t1
+order by pk asc;
+
+select pk, a, b, a+b,
+ lag(a + b) over (partition by a order by pk) + pk
+from t1
+order by pk asc;
+
+drop table t1;