GET_PROJECTIONS

Returns the following information about projections of the specified anchor table:

Contextual information
  • Database K-safety
  • Number of database nodes
  • Number of projections for this table
Projection data

For each projection, specifies:

  • All buddy projections
  • Whether it is segmented
  • Whether it is safe
  • Whether it is up-to-date.

You can also use GET_PROJECTIONS to monitor the progress of a projection data refresh.

Syntax

GET_PROJECTIONS ( '[[database.]schema-name.]table' )

Parameters

[database.]schema

Specifies a schema, by default public. If schema is any schema other than public, you must supply the schema name. For example:

myschema.thisDbObject

If you specify a database, it must be the current database.
table

Anchor table of the projections to list.

Privileges

None

Examples

The following example gets information about projections for VMart table store.store_dimension:

=> SELECT GET_PROJECTIONS('store.store_dimension');
-[ RECORD 1 ]---+
GET_PROJECTIONS | Current system K is 1.
# of Nodes: 3.
Table store.store_dimension has 2 projections.

Projection Name: [Segmented] [Seg Cols] [# of Buddies] [Buddy Projections] [Safe] [UptoDate] [Stats]
----------------------------------------------------------------------------------------------------
store.store_dimension_b1 [Segmented: Yes] [Seg Cols: "store.store_dimension.store_key"] [K: 1] [store.store_dimension_b0] [Safe: Yes] [UptoDate: Yes] [Stats: RowCounts]
store.store_dimension_b0 [Segmented: Yes] [Seg Cols: "store.store_dimension.store_key"] [K: 1] [store.store_dimension_b1] [Safe: Yes] [UptoDate: Yes] [Stats: RowCounts]