Problem with Textfield autocomplete-->; only use the INSTR function
Hello team dev,I use the new "textfield autocomplete" item type APEX and you have a crazy problem with it.
I have a table with an index on the same column I want to search with AutoComplete field.
Index:
CREATE BITMAP INDEX TEST.GEO_DATA_IDX1 ON TEST.GEO_DATA (postcode)
NOLOGGING TABLESPACE TS_INDEX;
Select which is automatically generated by APEX 4:SELECT a.*
FROM ( SELECT DISTINCT postcode AS RV
FROM TEST.GEO_DATA
WHERE country_id = :P1_COUNTRY
ORDER BY 1) a
WHERE INSTR ("RV", :p$_search_string) > 0 AND ROWNUM <= :p$_max_rows;
-- plan
Plan
SELECT STATEMENT ALL_ROWSCost: 4,308 Bytes: 45,31 Cardinality: 1,97
2 SORT UNIQUE Cost: 4,307 Bytes: 45,31 Cardinality: 1,97
1 TABLE ACCESS FULL TABLE #TABLE# Cost: 4,306 Bytes: 47,311 Cardinality: 2,057
The APEX 3, I used the addon of Tyler Muth with my own Select:SELECT DISTINCT
postcode AS DV,
postcode AS RV
FROM TEST.GEO_DATA
WHERE country_id = L_COUNTRY
AND postcode like l_search||'%'
ORDER BY 1
-- Plan
SELECT STATEMENT ALL_ROWSCost: 840 Bytes: 152,867 Cardinality: 13,897
8 SORT ORDER BY Cost: 840 Bytes: 152,867 Cardinality: 13,897
7 HASH UNIQUE Cost: 838 Bytes: 152,867 Cardinality: 13,897
6 VIEW VIEW index$_join$_001 Cost: 836 Bytes: 232,111 Cardinality: 21,101
5 HASH JOIN
2 BITMAP CONVERSION TO ROWIDS Cost: 31 Bytes: 232,111 Cardinality: 21,101
1 BITMAP INDEX RANGE SCAN INDEX (BITMAP) #INDEX#
4 BITMAP CONVERSION TO ROWIDS Cost: 45 Bytes: 232,111 Cardinality: 21,101
3 BITMAP INDEX SINGLE VALUE INDEX (BITMAP) #INDEX#
Is there a chance to get my INDEX used by the new element of the APEX? I do not. But I still want to ask before I just rebuild. :)Best regards
Tobias
Hi Tobias,.
I guess that you are currently using "contains and case sensitivity ' to the attribute of"search ". Have you ever tried out "Exact and case sensitivity? Because that internally uses the LIKE operator as does your original query and the % is at the end, she must allow the use of an index. But it might still work, because ORDER BY can be run at a different time in your original example, but it's worth a try.
Concerning
Patrick
-----------
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Tags: Database
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