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Oracle® TimesTen In-Memory Database SQL Reference
Release 11.2.1

Part Number E13070-03
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SYS.TCOL_STATS

The TCOL_STATS table stores the statistics for table columns in temporary table instances associated with active sessions. Statistics include the number of unique values, number of nulls, number of rows and other information regarding the distribution of column values. No values are present if statistics have not been computed.

Columns

Column name Type Description
TBLID TT_INTEGER NOT NULL for 32-bit systems;

TT_BIGINT NOT NULL for 64-bit systems

TimesTen table identifier.
COLNUM TT_SMALLINT NOT NULL Ordinal number of column in table (starting at 1).
INFO VARBINARY (4000000) NOT NULL NOT INLINE Contains a binary representative of the column value distribution information. See ttOptUpdateStats for an explanation of the distribution information stored in this column. A text representation of this information can be retrieved using ttOptGetColStats.