Slow Indexing with BASIC_LEXER and with INDEX_STEMS enabled

(Doc ID 1372018.1)

Last updated on OCTOBER 31, 2011

Applies to:

Oracle Text - Version: 11.1.0.7 and later   [Release: 11.1 and later ]
Information in this document applies to any platform.

Symptoms

-- Problem Statement:
Slow indexing performance while trying to index a table with around 1000 records when Arabic index_stems is enabled.

begin
ctx_ddl.drop_preference('ABC_LEXER');
ctx_ddl.create_preference('ABC_LEXER', 'BASIC_LEXER');
ctx_ddl.set_attribute ( 'ABC_LEXER', 'index_stems', 'ARABIC');
end;
/

Disabling 'index_stems' tends to result in good and fast indexing.

Cause

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