Updated unique docs

pkg/yqlib/doc/operators/headers/unique.md

@@ -1,3 +1,4 @@
 # Unique
 
-This is used to filter out duplicated items in an array.
+This is used to filter out duplicated items in an array. Note that the original order of the array is maintained.
+

pkg/yqlib/doc/operators/unique.md

@@ -9,10 +9,12 @@ Note that versions prior to 4.18 require the 'eval/e' command to be specified.&#
 {% endhint %}
 
 ## Unique array of scalars (string/numbers)
+Note that unique maintains the original order of the array.
+
 Given a sample.yml file of:
 ```yaml
-- 1
 - 2
+- 1
 - 3
 - 2
 ```
@@ -22,8 +24,8 @@ yq 'unique' sample.yml
 ```
 will output
 ```yaml
-- 1
 - 2
+- 1
 - 3
 ```
 

pkg/yqlib/operator_unique_test.go

@@ -7,10 +7,11 @@ import (
 var uniqueOperatorScenarios = []expressionScenario{
 	{
 		description:    "Unique array of scalars (string/numbers)",
-		document:    `[1,2,3,2]`,
+		subdescription: "Note that unique maintains the original order of the array.",
+		document:       `[2,1,3,2]`,
 		expression:     `unique`,
 		expected: []string{
-			"D0, P[], (!!seq)::- 1\n- 2\n- 3\n",
+			"D0, P[], (!!seq)::- 2\n- 1\n- 3\n",
 		},
 	},
 	{

release_notes.txt

@@ -1,10 +1,10 @@
 4.25.1:
-  - Can specify a split expression file #1194
-  - Fixed append map bug when key matches value in existing map #1200
-  - Nicer error message when trying to use merge anchor tags other than maps #1184
-  - Fixed Don't automatically read stdin when the null input flag is used
-  - Added type as an alias for tag #1195
-  - Fixes bug when using write in-place with no expression and multiple files #1193
+- Can specify a split expression file #1194
+- Fixed append map bug when key matches value in existing map #1200
+- Nicer error message when trying to use merge anchor tags other than maps #1184
+- Fixed Don't automatically read stdin when the null input flag is used
+- Added type as an alias for tag #1195
+- Fixes bug when using write in-place with no expression and multiple files #1193
 
 4.24.5:
   - Fixed scenarios that dropped the first line if it's a comment (#1181)