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Bug#21682356: STOP INJECTING DATA ITEMS IN AN ERROR MESSAGE

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GENERATED BY THE EXP() FUNCTION

When generating the error message for numeric overflow, pass a flag to
Item::print() that prevents it from expanding constant expressions and
parameters to the values they evaluate to.

For consistency, also pass the flag to Item::print() when
Item_func_spatial_collection::fix_length_and_dec() generates an error
message. It doesn't make any difference at the moment, since constant
expressions haven't been evaluated yet when this function is called.
This commit is contained in:
Knut Anders Hatlen 2016-01-07 12:53:18 +01:00
commit 95825fa28a
6 changed files with 48 additions and 21 deletions
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10
sql/mysqld.h
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@ -1,4 +1,4 @@
/* Copyright (c) 2006, 2015, Oracle and/or its affiliates. All rights reserved.
/* Copyright (c) 2006, 2016, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -431,7 +431,13 @@ enum enum_query_type
/// In utf8.
QT_TO_SYSTEM_CHARSET= (1 << 0),
/// Without character set introducers.
QT_WITHOUT_INTRODUCERS= (1 << 1)
QT_WITHOUT_INTRODUCERS= (1 << 1),
/**
If an expression is constant, print the expression, not the value
it evaluates to. Should be used for error messages, so that they
don't reveal values.
*/
QT_NO_DATA_EXPANSION= (1 << 9),
};
/* query_id */