DB4AI.PREPARE_SNAPSHOT_INTERNAL

PREPARE_SNAPSHOT_INTERNAL is a built-in execution function of the DB4AI.PREPARE_SNAPSHOT function. The function involves information verification and cannot be directly invoked.

**Table 1** DB4AI.PREPARE_SNAPSHOT_INTERNAL input parameters and return values
Parameter	Type	Description
s_id	IN BIGINT	Snapshot ID
p_id	IN BIGINT	Parent snapshot ID
m_id	IN BIGINT	Matrix ID
r_id	IN BIGINT	Root snapshot ID
i_schema	IN NAME	Snapshot schema
i_name	IN NAME	Snapshot name
i_commands	IN TEXT[]	DDL and DML commands for modifying snapshots
i_comment	IN TEXT	Snapshot description
i_owner	IN NAME	Snapshot owner
i_idx	INOUT INT	Command index
i_exec_cmds	INOUT TEXT[]	DDL and DML commands for execution
i_mapping	IN NAME[]	Maps user columns to backup columns. A rule is generated if the value is not NULL.