52.44. `pg_propgraph_property`
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## 52.44. `pg_propgraph_property` #

The catalog `pg_propgraph_property` stores information about the properties in a property graph. This only stores information that applies to a property throughout the graph, independent of what label or element it is on. Additional information, including the actual expressions that define the properties are in the catalog `pg_propgraph_label_property`.

Table 52.44. `pg_propgraph_property` Columns

Column Type Description
`oid` `oid` Row identifier
`pgppgid` `oid` (references `pg_class`.`oid`) Reference to the property graph that this property belongs to
`pgpname` `name` The name of the property. This is unique among the properties in a graph.
`pgptypid` `oid` (references `pg_type`.`oid`) The data type of this property. (This is required to be fixed for a given property in a property graph, even if the property is defined multiple times in different elements and labels.)
`pgptypmod` `int4` `typmod` to be applied to the data type of this property. (This is required to be fixed for a given property in a property graph, even if the property is defined multiple times in different elements and labels.)
`pgpcollation` `oid` (references `pg_collation`.`oid`) The defined collation of this property, or zero if the property is not of a collatable data type. (This is required to be fixed for a given property in a property graph, even if the property is defined multiple times in different elements and labels.)

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