Stop using overview tables

[enekid]

Context: [PROJECT] Deprecate raster overviews

Note: Don't merge into master until authorized.

Don't use overviews tables to generate dataviews and maps. Also, in order to maintain performance, Dynamic aggregation has to be enabled for raster tiles (issue).

Main steps:

• Use regular dataviews factory (non-overviews)

Current - Dataview Factory with Overviews

var DataviewFactoryWithOverviews = require('../models/dataview/overviews/factory');
//...
var dataviewDefinition = getDataviewDefinition(mapConfig.obj(), dataviewName);
//...
pg = new PSQL(dbParamsFromReqParams(params));
var query = getQueryWithFilters(dataviewDefinition, params);
var queryRewriteData = getQueryRewriteData(mapConfig, dataviewDefinition, params);
var dataviewFactory = DataviewFactoryWithOverviews.getFactory(overviewsQueryRewriter, queryRewriteData, {
        bbox: params.bbox
});
dataview = dataviewFactory.getDataview(query, dataviewDefinition);

Proposed - Dataview Factory without Overviews

var DataviewFactory = require('../models/dataview/factory');
//...
var dataviewDefinition = getDataviewDefinition(mapConfig.obj(), dataviewName);
//...
pg = new PSQL(dbParamsFromReqParams(params));
var query = getQueryWithFilters(dataviewDefinition, params);
dataview = DataviewFactory.getDataview(query, dataviewDefinition);

• Remove MapConfigOverviewsAdapter from adapter list

The api-router creates a list of chained adaptars that transform the original MapConfig. The one related to the overviews is MapConfigOverviewsAdapter. It tries to transform the sql in order to make use of the overviews tables.

        const mapConfigAdapter = new MapConfigAdapter(
            new MapConfigNamedLayersAdapter(templateMaps, pgConnection),
            new MapConfigBufferSizeAdapter(),
            new SqlWrapMapConfigAdapter(),
            new DataviewsWidgetsAdapter(),
            new AnalysisMapConfigAdapter(analysisBackend),
            new VectorMapConfigAdapter(pgConnection),
            new AggregationMapConfigAdapter(pgConnection),
            //new MapConfigOverviewsAdapter(overviewsMetadataBackend, filterStatsBackend),
            new TurboCartoAdapter()
        );