5.2. Constructor Functions

Each temporal type has a constructor function with the same name as the type and a suffix for the subtype, where the suffixes ‘_inst’, ‘_instset’, ‘_seq’, and ‘_seqset’ correspond, respectively, to the subtypes instant, instant set, sequence, and sequence set. Examples are tint_seq or tgeompoint_seqset. Using the constructor function is frequently more convenient than writing a literal constant.

We give next the constructor functions for the various subtypes.