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Add the support of 'SUBSTR' function compatible with Oracle and SAPDB (SCRUM #872)

Browse source 
sql/lex.h:
  Add SUBSTR aliased to SUBSTRING
sql/item_strfunc.cc:
  Implement SUBSTR negative offset
mysql-test/t/func_str.test:
  New tests for SUBSTR
mysql-test/r/func_str.result:
  Updated SUBSTR results
This commit is contained in:
unknown 2003-07-11 18:55:03 -07:00
commit a5ce6a49dd
4 changed files with 35 additions and 1 deletions
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sql/lex.h
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@ -627,6 +627,7 @@ static SYMBOL sql_functions[] = {
{ "STD", SYM(STD_SYM),0,0},
{ "STDDEV", SYM(STD_SYM),0,0},
{ "STRCMP", SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_strcmp)},
{ "SUBSTR", SYM(SUBSTRING),0,0},
{ "SUBSTRING", SYM(SUBSTRING),0,0},
{ "SUBSTRING_INDEX", SYM(SUBSTRING_INDEX),0,0},
{ "SUBTIME", SYM(FUNC_ARG2),0,CREATE_FUNC(create_func_subtime)},