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new 3e2d9014920 [improve](function) the offset params in lead/lag function
could use 0 (#33174)
3e2d9014920 is described below
commit 3e2d9014920db4a99e5d909e2865ac31790b36e1
Author: zhangstar333 <87313068+zhangstar...@users.noreply.github.com>
AuthorDate: Fri Apr 5 07:56:43 2024 +0800
[improve](function) the offset params in lead/lag function could use 0
(#33174)
---
.../nereids/trees/expressions/functions/window/Lag.java | 2 +-
.../nereids/trees/expressions/functions/window/Lead.java | 2 +-
.../correctness_p0/test_always_nullable_window_function.out | 12 ++++++++++++
.../test_always_nullable_window_function.groovy | 8 +++++++-
4 files changed, 21 insertions(+), 3 deletions(-)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lag.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lag.java
index d18a30b77cb..42b41a13556 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lag.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lag.java
@@ -92,7 +92,7 @@ public class Lag extends WindowFunction implements
TernaryExpression, Explicitly
if (children().size() >= 2) {
checkValidParams(getOffset(), true);
if (getOffset() instanceof Literal) {
- if (((Literal) getOffset()).getDouble() <= 0) {
+ if (((Literal) getOffset()).getDouble() < 0) {
throw new AnalysisException(
"The offset parameter of LAG must be a constant
positive integer: " + this.toSql());
}
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lead.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lead.java
index 04b62d76865..004b5195c0c 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lead.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/window/Lead.java
@@ -93,7 +93,7 @@ public class Lead extends WindowFunction implements
TernaryExpression, Explicitl
if (children().size() >= 2) {
checkValidParams(getOffset(), true);
if (getOffset() instanceof Literal) {
- if (((Literal) getOffset()).getDouble() <= 0) {
+ if (((Literal) getOffset()).getDouble() < 0) {
throw new AnalysisException(
"The offset parameter of LEAD must be a constant
positive integer: " + this.toSql());
}
diff --git
a/regression-test/data/correctness_p0/test_always_nullable_window_function.out
b/regression-test/data/correctness_p0/test_always_nullable_window_function.out
index 93605da2661..f38c4e9c9f7 100644
---
a/regression-test/data/correctness_p0/test_always_nullable_window_function.out
+++
b/regression-test/data/correctness_p0/test_always_nullable_window_function.out
@@ -95,3 +95,15 @@
24 02-24-10-21 1 \N \N \N \N \N \N
\N \N
24 02-24-10-21 1 1 1 1 1.0 1 1
\N \N
+-- !select_lead_lag --
+1 1 1 04-21-11 21
+1 1 1 04-21-11 21
+0 0 0 04-22-10-21 22
+0 0 0 04-22-10-21 22
+1 1 1 04-22-10-21 22
+1 1 1 04-22-10-21 22
+1 1 1 04-23-10 23
+1 1 1 04-23-10 23
+1 1 1 02-24-10-21 24
+1 1 1 02-24-10-21 24
+
diff --git
a/regression-test/suites/correctness_p0/test_always_nullable_window_function.groovy
b/regression-test/suites/correctness_p0/test_always_nullable_window_function.groovy
index 3ac6f17d8cd..a0774114176 100644
---
a/regression-test/suites/correctness_p0/test_always_nullable_window_function.groovy
+++
b/regression-test/suites/correctness_p0/test_always_nullable_window_function.groovy
@@ -172,5 +172,11 @@ suite("test_always_nullable_window_function") {
lead(state, 2, null) over (partition by myday order by time_col)
lead_value
from ${nullableTableName} order by myday, time_col, state;
"""
-
+ sql "set enable_nereids_planner = true"
+ qt_select_lead_lag """
+ select lag(state, 0, 22) over (partition by myday order by time_col)
lag_value,
+ lead(state, 0, 33) over (partition by myday order by time_col)
lead_value,
+ state,time_col,myday
+ from ${nullableTableName} order by myday, time_col, state;
+ """
}
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