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Bug#35981: ALTER EVENT causes the server to change the PRESERVE option.

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If [NOT] PRESERVE was not given, parser always defaulted to NOT
PRESERVE, making it impossible for the "not given = no change"
rule to work in ALTER EVENT. Leaving out the PRESERVE-clause
defaults to NOT PRESERVE on CREATE now, and to "no change" in
ALTER.
This commit is contained in:
Tatiana A. Nurnberg
2008-08-18 13:05:51 +02:00
parent 0e62334a24
commit 4b317a5688
6 changed files with 247 additions and 2 deletions
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10
sql/event_parse_data.h
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@ -38,7 +38,12 @@ public:
enum enum_on_completion
{
ON_COMPLETION_DROP = 1,
/*
On CREATE EVENT, DROP is the DEFAULT as per the docs.
On ALTER EVENT, "no change" is the DEFAULT.
*/
ON_COMPLETION_DEFAULT = 0,
ON_COMPLETION_DROP,
ON_COMPLETION_PRESERVE
};
@ -80,6 +85,9 @@ public:
bool
check_parse_data(THD *thd);
bool
check_dates(THD *thd, int previous_on_completion);
private:
void