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Updated API changes between v3.0 and v3.1 (markdown)

lightmare 2017-05-02 10:50:30 +02:00
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API-changes-between-v3.0-and-v3.1.md

@ -6,9 +6,26 @@ TODO
## Changed
- PostGIS: Variables in postgis SQL queries must now be wrapped in `!`. In Mapnik 3.0.x you could supply `@foo` but now you must supply `!@foo!` - refs https://github.com/mapnik/mapnik/pull/3618
- PostGIS: the `geometry_table` argument must be quoted if it contains reserved words - refs https://github.com/mapnik/mapnik/pull/3618
- PostGIS: Variables in postgis SQL queries must now additionally be wrapped in `!` (refs [#3618](https://github.com/mapnik/mapnik/pull/3618)):
```sql
-- Mapnik 3.0
SELECT ... WHERE trait = @variable
-- Mapnik 3.1
SELECT ... WHERE trait = !@variable!
```
- PostGIS/PGraster: The `table`/`geometry_table`/`raster_table` parameter in XML style must be quoted if it would need quoting in SQL query (refs [#3618](https://github.com/mapnik/mapnik/pull/3618)):
```xml
<!-- Mapnik 3.0 -->
<Parameter name="geometry_table">rolling stones</Parameter>
<!-- Mapnik 3.1 -->
<Parameter name="geometry_table">"rolling stones"</Parameter>
```
## Added
- PGraster: Variable interpolation just like PostGIS plugin (refs [#3618](https://github.com/mapnik/mapnik/pull/3618)).
TODO