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MDEV-12086 sql_mode=ORACLE: allow SELECT UNIQUE as a synonym for SELECT DISTINCT

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This commit is contained in:
Alexander Barkov
2017-02-20 19:30:58 +04:00
parent af7f287b3b
commit 99df09ecab
3 changed files with 23 additions and 0 deletions
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12
mysql-test/suite/compat/oracle/r/misc.result Normal file
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@ -0,0 +1,12 @@
SET sql_mode=ORACLE;
#
# MDEV-12086 sql_mode=ORACLE: allow SELECT UNIQUE as a synonym for SELECT DISTINCT
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20),(20),(30),(30),(30);
SELECT UNIQUE a FROM t1;
a
10
20
30
DROP TABLE t1;

10
mysql-test/suite/compat/oracle/t/misc.test Normal file
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@ -0,0 +1,10 @@
SET sql_mode=ORACLE;
--echo #
--echo # MDEV-12086 sql_mode=ORACLE: allow SELECT UNIQUE as a synonym for SELECT DISTINCT
--echo #
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20),(20),(30),(30),(30);
SELECT UNIQUE a FROM t1;
DROP TABLE t1;

1
sql/sql_yacc_ora.yy
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@ -16194,6 +16194,7 @@ query_expression_option:
Select->options|= SELECT_HIGH_PRIORITY;
}
| DISTINCT { Select->options|= SELECT_DISTINCT; }
| UNIQUE_SYM { Select->options|= SELECT_DISTINCT; }
| SQL_SMALL_RESULT { Select->options|= SELECT_SMALL_RESULT; }
| SQL_BIG_RESULT { Select->options|= SELECT_BIG_RESULT; }
| SQL_BUFFER_RESULT