carthorse/dist/src/sql/queries/staging-queries.js

A geospatial trail data processing pipeline for building 3D trail databases with elevation data

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StagingQueries = void 0;
exports.StagingQueries = {
    // Schema creation
    createSchema: (schemaName) => `
    CREATE SCHEMA IF NOT EXISTS ${schemaName}
  `,
    // Data copying
    copyTrails: (sourceSchema, targetSchema, region, bbox) => `
    INSERT INTO ${targetSchema}.trails 
    SELECT * FROM ${sourceSchema}.trails 
    WHERE region = $1 
    ${bbox ? 'AND ST_Intersects(geometry, ST_MakeEnvelope($2, $3, $4, $5, 4326))' : ''}
  `,
    // Data validation
    validateStagingData: (schemaName) => `
    SELECT 
      COUNT(*) as total_trails,
      COUNT(CASE WHEN geometry IS NULL THEN 1 END) as null_geometry,
      COUNT(CASE WHEN NOT ST_IsValid(geometry) THEN 1 END) as invalid_geometry,
      COUNT(CASE WHEN length_km IS NULL OR length_km <= 0 THEN 1 END) as zero_or_null_length,
      COUNT(CASE WHEN ST_StartPoint(geometry) = ST_EndPoint(geometry) THEN 1 END) as self_loops,
      COUNT(CASE WHEN ST_Length(geometry) = 0 THEN 1 END) as zero_length_geometry,
      COUNT(CASE WHEN ST_NumPoints(geometry) < 2 THEN 1 END) as single_point_geometry
    FROM ${schemaName}.trails
  `,
    // Trail validation for routing
    validateTrailsForRouting: (schemaName) => `
    SELECT 
      COUNT(*) as total_trails,
      COUNT(CASE WHEN geometry IS NULL THEN 1 END) as null_geometry,
      COUNT(CASE WHEN geometry IS NOT NULL AND NOT ST_IsValid(geometry) THEN 1 END) as invalid_geometry,
      COUNT(CASE WHEN length_km IS NULL OR length_km <= 0 THEN 1 END) as zero_or_null_length,
      COUNT(CASE WHEN ST_StartPoint(geometry) = ST_EndPoint(geometry) THEN 1 END) as self_loops,
      COUNT(CASE WHEN ST_Length(geometry) = 0 THEN 1 END) as zero_length_geometry,
      COUNT(CASE WHEN ST_NumPoints(geometry) < 2 THEN 1 END) as single_point_geometry
    FROM ${schemaName}.trails
  `,
    // Schema existence check
    checkSchemaExists: (schemaName) => `
    SELECT schema_name FROM information_schema.schemata WHERE schema_name = $1
  `,
    // Data counts
    getTrailCount: (schemaName) => `
    SELECT COUNT(*) as count FROM ${schemaName}.trails
  `,
    getNodeCount: (schemaName) => `
    SELECT COUNT(*) as count FROM ${schemaName}.ways_noded_vertices_pgr
  `,
    getEdgeCount: (schemaName) => `
    SELECT COUNT(*) as count FROM ${schemaName}.ways_noded
  `,
    getIntersectionPointCount: (schemaName) => `
    SELECT COUNT(*) as count FROM ${schemaName}.intersection_points
  `,
    // Cleanup
    cleanupSchema: (schemaName) => `
    DROP SCHEMA IF EXISTS ${schemaName} CASCADE
  `,
    // Trail details for debugging
    getTrailDetails: (schemaName, limit = 10) => `
    SELECT app_uuid, name, ST_Length(geometry::geography) as length_meters 
    FROM ${schemaName}.trails 
    WHERE ST_StartPoint(geometry) = ST_EndPoint(geometry)
      AND (ST_Length(geometry) = 0 OR ST_NumPoints(geometry) < 2)
    LIMIT $1
  `
};
//# sourceMappingURL=staging-queries.js.map