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Posted to commits@groovy.apache.org by su...@apache.org on 2021/07/18 10:43:28 UTC
[groovy] branch master updated: Tweak GINQ user guide
This is an automated email from the ASF dual-hosted git repository.
sunlan pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/groovy.git
The following commit(s) were added to refs/heads/master by this push:
new aba530e Tweak GINQ user guide
aba530e is described below
commit aba530ea93c02063fac713dd177388d88ec156de
Author: Daniel Sun <su...@apache.org>
AuthorDate: Sun Jul 18 18:43:14 2021 +0800
Tweak GINQ user guide
---
subprojects/groovy-ginq/src/spec/doc/ginq-userguide.adoc | 9 ++++++++-
.../src/spec/test/org/apache/groovy/ginq/GinqTest.groovy | 13 +++++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/subprojects/groovy-ginq/src/spec/doc/ginq-userguide.adoc b/subprojects/groovy-ginq/src/spec/doc/ginq-userguide.adoc
index dc86bb5..7c19105 100644
--- a/subprojects/groovy-ginq/src/spec/doc/ginq-userguide.adoc
+++ b/subprojects/groovy-ginq/src/spec/doc/ginq-userguide.adoc
@@ -875,6 +875,13 @@ include::../test/org/apache/groovy/ginq/GinqTest.groovy[tags=ginq_winfunction_38
include::../test/org/apache/groovy/ginq/GinqTest.groovy[tags=ginq_tips_05,indent=0]
----
+==== Distinct
+GINQ does not support `distinct` of SQL for now, but we could invoke `distinct()` method to workaround:
+[source, groovy]
+----
+include::../test/org/apache/groovy/ginq/GinqTest.groovy[tags=ginq_tips_14,indent=0]
+----
+
==== List Comprehension
List comprehension is an elegant way to define and create lists based on existing lists:
@@ -909,7 +916,7 @@ include::../test/org/apache/groovy/ginq/GinqTest.groovy[tags=ginq_tips_07,indent
----
==== Alternative for `with` clause
-GINQ does not support `with` clause for now. We could define a temporary variable to workaround:
+GINQ does not support `with` clause for now, but we could define a temporary variable to workaround:
[source, groovy]
----
include::../test/org/apache/groovy/ginq/GinqTest.groovy[tags=ginq_tips_12,indent=0]
diff --git a/subprojects/groovy-ginq/src/spec/test/org/apache/groovy/ginq/GinqTest.groovy b/subprojects/groovy-ginq/src/spec/test/org/apache/groovy/ginq/GinqTest.groovy
index 18182f1..91c0d21 100644
--- a/subprojects/groovy-ginq/src/spec/test/org/apache/groovy/ginq/GinqTest.groovy
+++ b/subprojects/groovy-ginq/src/spec/test/org/apache/groovy/ginq/GinqTest.groovy
@@ -222,6 +222,19 @@ class GinqTest {
}
@Test
+ void "testGinq - from select - 12"() {
+ assertGinqScript '''
+// tag::ginq_tips_14[]
+ def result = GQ {
+ from n in [1, 2, 2, 3, 3, 3]
+ select n
+ }.distinct()
+ assert [1, 2, 3] == result.toList()
+// end::ginq_tips_14[]
+ '''
+ }
+
+ @Test
void "testGinq - from where select - 1"() {
assertGinqScript '''
def numbers = [0, 1, 2, 3, 4, 5]