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Unable To Increase Initrans For LOB Index Segment (Doc ID 1617125.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 10.2.0.4 [Release 10.2]
Information in this document applies to any platform.

Symptoms

Unable to alter the initrans for LOB index segments
No error is thrown, but INITRANS does not change and remains fixed at 2.

example:


Table: DFLT_PRTY_VAL
output from data dictionary views:


SQL> select table_name , index_name , column_name from user_lobs where table_name='DFLT_PRTY_VAL' order by 2;
TABLE_NAME INDEX_NAME COLUMN_NAME
------------------------------ ------------------------------ ------------------------------
DFLT_PRTY_VAL SYS_IL0000082147C00005$$ B_VAL
DFLT_PRTY_VAL SYS_IL0000082147C00016$$ "G_VAL"."SDO_ELEM_INFO"
DFLT_PRTY_VAL SYS_IL0000082147C00017$$ "G_VAL"."SDO_ORDINATES"

SQL> select table_name, ini_trans from user_tables where table_name='DFLT_PRTY_VAL';

TABLE_NAME INI_TRANS
------------------------------ ----------
DFLT_PRTY_VAL 50

SQL> select table_name, index_name, ini_trans from user_indexes where table_name='DFLT_PRTY_VAL';

TABLE_NAME INDEX_NAME INI_TRANS
------------------------------ ------------------------------ ----------
DFLT_PRTY_VAL SYS_IL0000082147C00017$$ 2
DFLT_PRTY_VAL SYS_IL0000082147C00016$$ 2
DFLT_PRTY_VAL SYS_IL0000082147C00005$$ 2
DFLT_PRTY_VAL DFLT_PRTY_VAL_PK 50

SQL> alter table dflt_prty_val modify lob (B_VAL) (index (initrans 30));

Table altered.


However, the dictionary query still shows ini_trans of 2 for the B_VAL lob index "SYS_IL0000082147C00005$$"

Changes

 None

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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