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SET sql_mode=ORACLE;
#
# MDEV-13003 - Oracle compatibility : Replace function
#
SELECT REPLACE(null,'a','b') ;
REPLACE(null,'a','b')
NULL
SELECT REPLACE('ab',null,'b') ;
REPLACE('ab',null,'b')
ab
SELECT REPLACE('ab','a',null) ;
REPLACE('ab','a',null)
b
SELECT REPLACE('ab',null,null) ;
REPLACE('ab',null,null)
ab
SELECT REPLACE('aaa','a',null) ;
REPLACE('aaa','a',null)
NULL
EXPLAIN EXTENDED SELECT REPLACE('ab','a',null) ;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select replace_oracle('ab','a',NULL) AS "REPLACE('ab','a',null)"
CREATE VIEW v1 AS SELECT REPLACE('ab','a',null) ;
SHOW CREATE VIEW v1;
View Create View character_set_client collation_connection
v1 CREATE VIEW "v1" AS select replace_oracle('ab','a',NULL) AS "REPLACE('ab','a',null)" latin1 latin1_swedish_ci
SELECT * FROM v1;
REPLACE('ab','a',null)
b
DROP VIEW v1;
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