Expand description
Read retained physical scalar bytes only when a SQL operation observes the value. Type inspection, copying and NULL tests do not invoke this decoder.
Functions§
- contains_
datum - Whether catalog-free constant evaluation could reach an admitted physical value.
- copy_
constant_ field - Copy a selected constant field at planning time, detoasting variable-width storage without interpreting its scalar contents. Whole records remain deferred.
- read
- read_
with_ catalog - Read an admitted physical value through the current statement’s catalog, without invoking type input or domain checks.
- read_
with_ catalog_ and_ control - Preserve the caller’s output allowance and cancellation boundary during catalog-dependent physical reads.
- read_
with_ control - read_
with_ value_ catalog_ and_ control - Decode a reached value through the same borrowed catalog used by SQL comparison, hashing and output.
- type_
name