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Name

VT_BATCH_UPDATE — Set batch mode update of free text indexing.

Synopsis

integer DB.DBA. VT_BATCH_UPDATE ( in table varchar ,
  in flag varchar ,
  in interval_minutes integer );
 

Description

This function controls the time of update of a text index. If flag is ON, changes are accumulated into a change tracking table and applied as a batch. If flag is OFF, the text index is updated in the same transaction as the indexed data itself. The change tracking table is automatically created and is named VTLOG_<q>_<o>_<table>, in the qualifier and owner of the indexed table, where q, o and table are the qualifier, owner and name of the table. The changes accumulated into that table can be explicitly applied to the index using the VT_INC_INDEX_<q>_<o>_<table> function.

Parameters

table

the name of the table to perform batch updating of.

flag

If ON, updates are in batch mode, if OFF, they are synchronous.

interval_minutes

the update interval. NULL means that updates are not scheduled.

Errors

Table 24.115. Errors signalled by

SQLState Error Code Error Text Description