partrelidoid (referencespg_class.oid)
The OID of thepg_class entry for this partitioned table |
partstratchar
Partitioning strategy;h = hash partitioned table,l = list partitioned table,r = range partitioned table |
partnattsint2
The number of columns in the partition key |
partdefidoid (referencespg_class.oid)
The OID of thepg_class entry for the default partition of this partitioned table, or zero if this partitioned table does not have a default partition |
partattrsint2vector (referencespg_attribute.attnum)
This is an array ofpartnatts values that indicate which table columns are part of the partition key. For example, a value of1 3 would mean that the first and the third table columns make up the partition key. A zero in this array indicates that the corresponding partition key column is an expression, rather than a simple column reference. |
partclassoidvector (referencespg_opclass.oid)
For each column in the partition key, this contains the OID of the operator class to use. Seepg_opclass for details. |
partcollationoidvector (referencespg_collation.oid)
For each column in the partition key, this contains the OID of the collation to use for partitioning, or zero if the column is not of a collatable data type. |
partexprspg_node_tree
Expression trees (innodeToString() representation) for partition key columns that are not simple column references. This is a list with one element for each zero entry inpartattrs. Null if all partition key columns are simple references. |
