The Common Query Language (CQL2) Standard is a generic filter grammar that can be used to specify how resource instances in a source collection of any item type, including features, can be filtered to identify a results set. Typically, CQL2 is used in query operations to identify the subset of resources, such as features, that should be included in a response document. However, CQL2 can also be used in other operations, such as updates, to identify the subset of resources that should be affected by an operation.
CQL2 specifies:
| Document title | Version | OGC Doc No. | Type |
|---|---|---|---|
| Common Query Language (CQL2) | 1.0.0 | 21-065r2 | IS |
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