18.1.8 Amount of system log information output when the PURGE TABLE statement is executed

The amount of log information output when the PURGE TABLE statement is executed is determined from the total log information calculated for the table from all indexes, LOB columns, and LOB attributes. For partitioning tables and partitioning indexes, determine the total amount of log information for each RDAREA. Table 18-17 shows the formulas for calculating the amount of system log information when the PURGE TABLE statement is executed. In the formulas, calculate the variables A, B, and C for each RDAREA configuration file.

Table 18-17 Amount of system log information output during execution of the PURGE TABLE statement

TypeAmount of system log information (bytes)
Tables1000 + 1100[Figure]number of allocated segments
Rebalancing tables1000 + 1100[Figure]number of allocated segments + 400[Figure][Figure]1024[Figure]number of partitioning RDAREAS[Figure]
Indexes*1000 + 1100[Figure]number of allocated segments
LOB columns or LOB attributes*1000 + 17000[Figure]A + 160[Figure]B + 2[Figure]C
A: [Figure](number of segments used by HiRDB files [Figure] 64000) [Figure][Figure]95
B: [Figure](number of segments used by HiRDB files [Figure] 64000) [Figure]
C: [Figure](number of segments used by HiRDB files [Figure] 64000) [Figure][Figure]8150
* For plug-ins, the initialization log for each plug-in is output. For details, see the documentation for each plug-in.