SYSCAT.COLGROUPDISTCOUNTS catalog view

Each row represents the distribution statistics that apply to the nth most frequent value of a column group or the nth quantile of a column group.

Table 1. SYSCAT.COLGROUPDISTCOUNTS Catalog View
Column Name Data Type Nullable Description
COLGROUPID INTEGER   Identifier for the column group.
TYPE CHAR (1)  
  • F = Frequency value
  • Q = Quantile value
SEQNO SMALLINT   Sequence number n representing the nth TYPE value.
VALCOUNT BIGINT   If TYPE = F, VALCOUNT is the number of occurrences of COLVALUE for the column group with this SEQNO. If TYPE = Q, VALCOUNT is the number of rows whose value is less than or equal to COLVALUE for the column group with this SEQNO.
DISTCOUNT BIGINT If TYPE = Q, this column records the number of distinct values that are less than or equal to COLVALUE for the column group with this SEQNO (the null value if unavailable).