Swaps partitions between two tables.
This is a meta-function. You must call meta-functions in a top-level SELECT statement.
SWAP_PARTITIONS_BETWEEN_TABLES ( '[[database.]schema.]staging‑table', 'min‑range‑value', 'max‑range‑value', '[[database.]schema.]target‑table' [, force‑split] )
Database and schema. The default schema is
The staging table from which to swap partitions.
||The minimum and maximum value of partition keys to swap, where min‑range‑value must be ≤ max‑range‑value. To swap one partition, min‑range‑value and max‑range‑value must be equal.|
The table to which the partitions are to be swapped. The target table cannot be the same as the staging table.
Optional Boolean argument, specifies whether to split ROS containers if the range of partition keys spans multiple containers or part of a single container:
Non-superuser, one of the following:
- Owner of source and target tables
- Target and source tables: TRUNCATE, INSERT, SELECT
The following attributes of both tables must be identical:
- Column definitions, including NULL/NOT NULL constraints
- Partition clause
- Number of projections
- Projection sort order
- Primary and unique key constraints. However, the key constraints do not have to be identically enabled. For more information on constraints, see Constraints.
If the target table has primary or unique key constraints enabled and copying or moving the partitions will insert duplicate key values into the target table, Vertica rolls back the operation.
- Check constraints. For
COPY_PARTITIONS_TO_TABLE, Vertica enforces enabled check constraints on the target table only. For
SWAP_PARTITIONS_BETWEEN_TABLES, Vertica enforces enabled check constraints on both tables. If there is a violation of an enabled check constraint, Vertica rolls back the operation.
- Number and definitions of text indices.
Additionally, If access policies exist on the source table, the following must be true:
- Access policies on both tables must be identical.
- One of the following must be true:
- The executing user owns the target table.
AccessPolicyManagementSuperuserOnlyis set to true.
The following restrictions apply to the source and target tables:
- If the source and target partitions are in different storage tiers, Vertica returns a warning but the operation proceeds. The partitions remain in their existing storage tier.
- The following tables cannot be used as sources or targets:
- Temporary tables
- Virtual tables
- System tables
- External tables
See Swapping Partitions.