goals. The four measures are referred to by DORA as measures of Software Delivery and Operational (SDO) performance and are metrics where elite and high performance excelled: 1. Deployment frequency DORA differences in performance between the very best teams and their less successful counterparts. SDO Measure Elite High Medium Low Deployment frequency On-demand (multiple deploys per day) Between 0-15% 46-60% A surprise: speed and stability support one another Combining the first and second SDO measures (lead time and deployment frequency) provides an indication of throughput. Combining the

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MySQL MBRContains(poly, geom) SpatiaLite Contains(poly, geom) contains_properly SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster om) SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) crosses Availability: PostGIS, SpatiaLite, PGRaster

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MySQL MBRContains(poly, geom) SpatiaLite Contains(poly, geom) 6.5. contrib objects.filter(poly__coveredby=geom) Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) covers Availability: PostGIS, Oracle, PGRaster (Bilateral) Tests if no point Zipcode.objects.filter(poly__covers=geom) Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) crosses Availability: PostGIS, SpatiaLite, PGRaster (Conversion) Tests if the

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MySQL MBRContains(poly, geom) SpatiaLite Contains(poly, geom) contains_properly objects.filter(poly__coveredby=geom) Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) covers Availability: PostGIS, Oracle, PGRaster (Bilateral) Tests if no point Zipcode.objects.filter(poly__covers=geom) Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) crosses Availability: PostGIS, SpatiaLite, PGRaster (Conversion) Tests if the

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MySQL MBRContains(poly, geom) SpatiaLite Contains(poly, geom) 6.5. contrib SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster om) SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) 3 For an explanation of this routine, read Quirks

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MariaDB ST_Contains(poly, geom) Backend SQL Equivalent MySQL ST_Contains(poly SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster om) SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) crosses Availability: PostGIS, MariaDB, MySQL,

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MariaDB ST_Contains(poly, geom) MySQL ST_Contains(poly, geom) SpatiaLite Contains(poly objects.filter(poly__coveredby=geom) Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster Zipcode.objects.filter(poly__covers=geom) Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) 3 For an explanation of this routine, read Quirks

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MariaDB ST_Contains(poly, geom) MySQL ST_Contains(poly, geom) SpatiaLite Contains(poly objects.filter(poly__coveredby=geom) Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster Zipcode.objects.filter(poly__covers=geom) Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) 3 For an explanation of this routine, read Quirks

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MariaDB ST_Contains(poly, geom) MySQL ST_Contains(poly, geom) SpatiaLite Contains(poly SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster om) SpatiaLite support was added. Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) crosses Availability: PostGIS, MariaDB, MySQL,

objects.filter(poly__contains=geom) Backend SQL Equivalent PostGIS ST_Contains(poly, geom) Oracle SDO_CONTAINS(poly, geom) MariaDB ST_Contains(poly, geom) MySQL ST_Contains(poly, geom) SpatiaLite Contains(poly objects.filter(poly__coveredby=geom) Backend SQL Equivalent PostGIS ST_CoveredBy(poly, geom) Oracle SDO_COVEREDBY(poly, geom) SpatiaLite CoveredBy(poly, geom) covers Availability: PostGIS, Oracle, PGRaster Zipcode.objects.filter(poly__covers=geom) Backend SQL Equivalent PostGIS ST_Covers(poly, geom) Oracle SDO_COVERS(poly, geom) SpatiaLite Covers(poly, geom) crosses Availability: PostGIS, MariaDB, MySQL,