Date/time fragment Grouping data Name Relations Detailed description ym:s:year By year !., !=, <, <=, =., ==, >, >= ym:s:month By month !., !=, <, <=, =., ==, >, >= Grouping data Name Relations Detailed description ym:s:year By year !., !=, <, <=, =., ==, >, >= ym:s:month By month !., !=, <, <=, =., ==, >, >=