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MDEV-20809 EXTRACT from INET6 value does not produce any warnings

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Disallowing EXTRACT(xxx FROM inet6arg) as fix time.
Adding a new method Type_handler::can_return_extract_source().
This commit is contained in:
Alexander Barkov
2020-06-01 10:35:01 +04:00
parent f67522ede6
commit 35cbbd4d70
10 changed files with 90 additions and 0 deletions
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sql/sql_type.h
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@ -3616,6 +3616,7 @@ public:
virtual bool can_return_text() const { return true; }
virtual bool can_return_date() const { return true; }
virtual bool can_return_time() const { return true; }
virtual bool can_return_extract_source(interval_type type) const;
virtual bool is_bool_type() const { return false; }
virtual bool is_general_purpose_string_type() const { return false; }
virtual uint Item_time_precision(THD *thd, Item *item) const;