PG_PREPARED_STATEMENTS

PG_PREPARED_STATEMENTS displays all prepared statements that are available in the current session.

Table 1 PG_PREPARED_STATEMENTS columns

Name	Type	Description
name	text	Identifier of the prepared statement
statement	text	Query string for creating this prepared statement. For prepared statements created through SQL, this is the PREPARE statement submitted by the client. For prepared statements created through the frontend/backend protocol, this is the text of the prepared statement itself.
prepare_time	timestamp with time zone	Timestamp when the prepared statement is created
parameter_types	regtype[]	Expected parameter types for the prepared statement in the form of an array of regtype. The OID corresponding to an element of this array can be obtained by converting the regtype value to oid.
from_sql	Boolean	True if the prepared statement was created through the PREPARE statement False if the statement was prepared through the frontend/backend protocol