Movatterモバイル変換

oidoid

Row identifier

stxrelidoid (referencespg_class.oid)

Table containing the columns described by this object

stxnamename

Name of the statistics object

stxnamespaceoid (referencespg_namespace.oid)

The OID of the namespace that contains this statistics object

stxowneroid (referencespg_authid.oid)

Owner of the statistics object

stxkeysint2vector (referencespg_attribute.attnum)

An array of attribute numbers, indicating which table columns are covered by this statistics object; for example a value of1 3 would mean that the first and the third table columns are covered

stxstattargetint2

stxstattarget controls the level of detail of statistics accumulated for this statistics object byANALYZE. A zero value indicates that no statistics should be collected. A null value says to use the maximum of the statistics targets of the referenced columns, if set, or the system default statistics target. Positive values ofstxstattarget determine the target number of“most common values” to collect.

stxkindchar[]

An array containing codes for the enabled statistics kinds; valid values are:d for n-distinct statistics,f for functional dependency statistics,m for most common values (MCV) list statistics, ande for expression statistics

stxexprspg_node_tree

Expression trees (innodeToString() representation) for statistics object attributes that are not simple column references. This is a list with one element per expression. Null if all statistics object attributes are simple references.