stac-api-extensions · philvarner · Apr 3, 2024
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased] - TBD
+
+### Changed
+
+- Added Basic Spatial Functions with additional Spatial Data Types definition, which defines
+  a class that has only S_INTERSECTS over all geometry data types
+- Renamed Basic Spatial Operators to Basic Spatial Functions
+- Renamed Spatial Operators to Spatial Functions
+- Renamed Temporal Operators to Temporal Functions
+- Renamed Array Operators to Array Functions
+
 ## [v1.0.0-rc.3] - 2023-10-18
 
 ### Added

diff --git a/README.md b/README.md
@@ -28,10 +28,10 @@
     - [Example 6: Temporal Intersection](#example-6-temporal-intersection)
       - [Example 6: T\_INTERSECTS cql2-text (GET)](#example-6-t_intersects-cql2-text-get)
       - [Example 6: T\_INTERSECTS cql2-json (POST)](#example-6-t_intersects-cql2-json-post)
-    - [Example 7: Spatial Intersection in Basic Spatial Operators](#example-7-spatial-intersection-in-basic-spatial-operators)
+    - [Example 7: Spatial Intersection in Basic Spatial Functions](#example-7-spatial-intersection-in-basic-spatial-functions)
       - [Example 7: S\_INTERSECTS cql2-text (GET)](#example-7-s_intersects-cql2-text-get)
       - [Example 7: S\_INTERSECTS cql2-json (POST)](#example-7-s_intersects-cql2-json-post)
-    - [Example 8: Spatial Intersection in Spatial Operators](#example-8-spatial-intersection-in-spatial-operators)
+    - [Example 8: Spatial Intersection](#example-8-spatial-intersection)
       - [Example 8: S\_INTERSECTS cql2-text (GET)](#example-8-s_intersects-cql2-text-get)
       - [Example 8: S\_INTERSECTS cql2-json (POST)](#example-8-s_intersects-cql2-json-post)
     - [Example 9: Spatial Intersection Disjunction](#example-9-spatial-intersection-disjunction)
@@ -52,6 +52,9 @@
     - [Example 14: Using the ACCENTI Accent-insensitive Comparison Function](#example-14-using-the-accenti-accent-insensitive-comparison-function)
       - [Example 14: cql2-text (GET)](#example-14-cql2-text-get)
       - [Example 14: cql2-json (POST)](#example-14-cql2-json-post)
+    - [Example 15: Using the IN List predicate](#example-15-using-the-in-list-predicate)
+      - [Example 15: cql2-text (GET)](#example-15-cql2-text-get)
+      - [Example 15: cql2-json (POST)](#example-15-cql2-json-post)
 
 ## Overview
 
@@ -65,12 +68,13 @@
   - CQL2 JSON: `http://www.opengis.net/spec/cql2/1.0/conf/cql2-json`
   - Basic CQL2: `http://www.opengis.net/spec/cql2/1.0/conf/basic-cql2`
   - Advanced Comparison Operators: `http://www.opengis.net/spec/cql2/1.0/conf/advanced-comparison-operators`
-  - Basic Spatial Operators: `http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-operators`
-  - Spatial Operators: `http://www.opengis.net/spec/cql2/1.0/conf/spatial-operators`
-  - Temporal Operators: `http://www.opengis.net/spec/cql2/1.0/conf/temporal-operators`
+  - Basic Spatial Functions: `http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-functions`
+  - Basic Spatial Functions with additional Spatial Data Types: `http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-functions-plus`
+  - Spatial Functions: `http://www.opengis.net/spec/cql2/1.0/conf/spatial-functions`
+  - Temporal Functions: `http://www.opengis.net/spec/cql2/1.0/conf/temporal-functions`
   - Custom Functions: `http://www.opengis.net/spec/cql2/1.0/conf/functions`
   - Arithmetic Expressions: `http://www.opengis.net/spec/cql2/1.0/conf/arithmetic`
-  - Array Operators: `http://www.opengis.net/spec/cql2/1.0/conf/array-operators`
+  - Array Functions: `http://www.opengis.net/spec/cql2/1.0/conf/array-functions`
   - Property-Property Comparisons: `http://www.opengis.net/spec/cql2/1.0/conf/property-property`
   - Accent and Case-insensitive Comparison: `http://www.opengis.net/spec/cql2/1.0/conf/accent-case-insensitive-comparison`
 - **Scope:** STAC API - Features, STAC API - Item Search
@@ -147,10 +151,11 @@ CQL2 enables more expressive queries than supported by STAC API Item Search. The
 
 OAFeat Part 3 CQL2 defines several conformance classes that allow implementers to create compositions of
 functionality that support whatever expressiveness they need. This allows implementers to incrementally support CQL
-syntax, without needing to implement a huge spec all at once.  Some implementers choose not to incur the cost of
+syntax, without needing to implement a large specification all at once.  Some implementers choose not to incur the cost of
 implementing functionality they do not need or may not be able to implement functionality that is not supported by
 their underlying datastore, e.g., Elasticsearch does not support the spatial predicates required by the
-Spatial Operators conformance class, only the `S_INTERSECTS` operator in the Basic Spatial Operators class.
+Spatial Functions conformance class, only the `S_INTERSECTS` function against geometries in the
+Basic Spatial Functions with additional Spatial Data Types class.
 
 The STAC API Filter Extension reuses the definitions and conformance classes in OAFeat CQL,
 adding only the *Item Search Filter* conformance class
@@ -190,26 +195,31 @@ For additional capabilities, the following classes may be implemented:
   (`http://www.opengis.net/spec/cql2/1.0/conf/advanced-comparison-operators`) defines the `LIKE`,
   `BETWEEN`, and `IN` operators. **Note**: this conformance class no longer requires implementing the
   `lower` and `upper` functions.
-- Basic Spatial Operators (`http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-operators`) defines the intersects operator (`S_INTERSECTS`)
-  that accepts only a BBOX or POINT parameter.
-- Spatial Operators
-  (`http://www.opengis.net/spec/cql2/1.0/conf/spatial-operators`) defines a set of operators that
-  are part of the Dimensionally Extended Nine-intersection Model (DE-9IM) relation operators
-  (`S_CONTAINS`, `S_CROSSES`, `S_DISJOINT`, `S_EQUALS`, `S_INTERSECTS`, `S_OVERLAPS`, `S_TOUCHES`, and `S_WITHIN`),
-  and additionally defines the intersects operator (`S_INTERSECTS`) to accept LINESTRING,
-  POLYGON, MULTIPOINT, MULTILINESTRING, and MULTIPOLYGON,
-  in addition to BBOX and POINT as supported in Basic Spatial Operators.
-- Temporal Operators
-  (`http://www.opengis.net/spec/cql2/1.0/conf/temporal-operators`) defines several temporal
-  operators that provide more expressivity with datetime types than the relative comparison
+- Basic Spatial Functions (`http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-functions`) defines the intersects function (`S_INTERSECTS`)
+  that accepts only a BBOX or Point parameter.
+- Basic Spatial Functions with additional Spatial Data Types
+  (`http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-functions-plus`) defines the
+  intersects function (`S_INTERSECTS`)
+  to accept any geometry data type, including Point, MultiPoint, LineString, MultiLineString,
+  Polygon, MultiPolygon, or GeometryCollection, in addition to BBOX and POINT as supported in
+  Basic Spatial Functions.
+- Spatial Functions
+  (`http://www.opengis.net/spec/cql2/1.0/conf/spatial-functions`) defines a set of functions that
+  are part of the Dimensionally Extended Nine-intersection Model (DE-9IM) relation functions
+  (`S_CONTAINS`, `S_CROSSES`, `S_DISJOINT`, `S_EQUALS`, `S_INTERSECTS`, `S_OVERLAPS`,
+  `S_TOUCHES`, and `S_WITHIN`) over both BBOX and geometry data types Point, MultiPoint,
+  LineString, MultiLineString, Polygon, MultiPolygon, or GeometryCollection.
+- Temporal Functions
+  (`http://www.opengis.net/spec/cql2/1.0/conf/temporal-functions`) defines several temporal
+  functions that provide more expressivity with datetime types than the relative comparison
   operators
   in the Basic CQL2 class.
 - Custom Functions (`http://www.opengis.net/spec/cql2/1.0/conf/functions`) defines support
   for function definition and usage.
 - Arithmetic Expressions: (`http://www.opengis.net/spec/cql2/1.0/conf/arithmetic`) defines
   support for arithmetic expressions.
-- Array Operators: (`http://www.opengis.net/spec/cql2/1.0/conf/array-operators`)
-  defines array operators (`A_EQUALS`, `A_CONTAINS`, `A_CONTAINED_BY`, and `A_OVERLAPS`).
+- Array Functions: (`http://www.opengis.net/spec/cql2/1.0/conf/array-functions`)
+  defines array functions (`A_EQUALS`, `A_CONTAINS`, `A_CONTAINED_BY`, and `A_OVERLAPS`).
 - Property-Property Comparisons: (`http://www.opengis.net/spec/cql2/1.0/conf/property-property`)
   allows the use of queryables (e.g., properties) in both positions of a clause, not just in the
   first position. This allows predicates like `property1 = property2` be expressed, whereas the
@@ -404,9 +414,8 @@ at least these values:
     "http://www.opengis.net/spec/cql2/1.0/conf/cql2-text",
     "http://www.opengis.net/spec/cql2/1.0/conf/cql2-json",
     "http://www.opengis.net/spec/cql2/1.0/conf/basic-cql2",
-    "http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-operators",
+    "http://www.opengis.net/spec/cql2/1.0/conf/basic-spatial-functions",
     "http://www.opengis.net/spec/cql2/1.0/conf/advanced-comparison-operators"
-
   ],
   "links": [
     {
@@ -810,7 +819,7 @@ filter=prop1 = prop2
 
 This uses the same queryables as Example 3.
 
-The only temporal operator required is `T_INTERSECTS`. This is effectively that the datetime or interval operands
+The only temporal function required is `T_INTERSECTS`. This is effectively that the datetime or interval operands
 have any overlap between them.
 
 #### Example 6: T_INTERSECTS cql2-text (GET)
@@ -834,9 +843,9 @@ filter=T_INTERSECTS(datetime, INTERVAL('2020-11-11T00:00:00Z', '2020-11-12T00:00
 }
 ```
 
-### Example 7: Spatial Intersection in Basic Spatial Operators
+### Example 7: Spatial Intersection in Basic Spatial Functions
 
-The only spatial operator that must be implemented for Basic Spatial Operators
+The only spatial function that must be implemented for Basic Spatial Functions
 is `S_INTERSECTS` supporting BBOX and POINT. This has the same semantics as provided
 by the Item Search `intersects` parameter.  The `cql2-text` format uses WKT geometries and the `cql2-json`
 format uses GeoJSON geometries.
@@ -865,9 +874,10 @@ filter=S_INTERSECTS(geometry,POINT(-77.0824 38.7886))
 }
 ```
 
-### Example 8: Spatial Intersection in Spatial Operators
+### Example 8: Spatial Intersection
 
-The Spatial Operators extends the Basic Spatial Operators by adding support for additional
+The Basic Spatial Functions with additional Spatial Data Types class extends
+the Basic Spatial Functions class by adding support for additional
 geometries to the `S_INTERSECTS` parameter. This has the same semantics as provided
 by the Item Search `intersects` parameter.  The `cql2-text` format uses WKT geometries and the `cql2-json`
 format uses GeoJSON geometries.

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -12,7 +12,7 @@
     "dependencies": {
         "@redocly/openapi-cli": "^1.0.0-beta.94",
         "@stoplight/spectral-cli": "^6.11.0",
-        "gh-pages": "^6.0.0",
+        "gh-pages": "^6.1.1",
         "redoc-cli": "^0.13.21",
         "remark-cli": "^12.0.0",
         "remark-lint": "^9.1.2",