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41a2f1c8de
comments)
This change set is for 5.1 (manually merged)
Before this fix, the server would accept queries that contained comments,
even when the comments were not properly closed with a '*' '/' marker.
For example,
select 1 /* + 2 <EOF>
would be accepted as
select 1 /* + 2 */ <EOF>
and executed as
select 1
With this fix, the server now rejects queries with unclosed comments
as syntax errors.
Both regular comments ('/' '*') and special comments ('/' '*' '!') must be
closed with '*' '/' to be parsed correctly.
mysql-test/r/comments.result:
Unbalanced comments are a syntax error.
mysql-test/t/comments.test:
Unbalanced comments are a syntax error.
sql/sql_lex.cc:
Unbalanced comments are a syntax error.
53 lines
2.3 KiB
Text
53 lines
2.3 KiB
Text
select 1+2/*hello*/+3;
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1+2/*hello*/+3
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6
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select 1 /* long
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multi line comment */;
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1
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1
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;
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ERROR 42000: Query was empty
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select 1 /*!32301 +1 */;
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1 +1
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2
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select 1 /*!52301 +1 */;
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1
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1
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select 1--1;
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1--1
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2
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select 1 --2
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+1;
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1 --2
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+1
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4
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select 1 # The rest of the row will be ignored
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;
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1
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1
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/* line with only comment */;
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select 1/*!2*/;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2*/' at line 1
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select 1/*!000002*/;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '2*/' at line 1
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select 1/*!999992*/;
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1
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1
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select 1 + /*!00000 2 */ + 3 /*!99999 noise*/ + 4;
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1 + 2 + 3 + 4
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10
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drop table if exists table_28779;
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create table table_28779 (a int);
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prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*' AND b = 'bar';";
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '/*' AND b = 'bar'' at line 1
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prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*' AND b = 'bar';*";
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '/*' AND b = 'bar';*' at line 1
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prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*! AND 2=2;";
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
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prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*! AND 2=2;*";
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ';*' at line 1
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prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*!98765' AND b = 'bar';";
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '/*!98765' AND b = 'bar'' at line 1
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prepare bar from "DELETE FROM table_28779 WHERE a = 7 OR 1=1/*!98765' AND b = 'bar';*";
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '/*!98765' AND b = 'bar';*' at line 1
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drop table table_28779;
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