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In order to make built-in and pluggable data types look similar inside the server code, we'll split this function:
static bool
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can_convert_field_to(Field *field,
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enum_field_types source_type, uint16 metadata,
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Relay_log_info *rli, uint16 mflags,
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int *order_var)
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{
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...
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}
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into type-specific implementations of a new virtual method in Type_handler.
The relevant piece of the code in the original type handler patch:
--- sql/rpl_utility.cc 2014-05-13 09:53:30 +0000
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+++ sql/rpl_utility.cc 2014-06-27 15:48:45 +0000
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@@ -675,6 +675,9 @@ can_convert_field_to(Field *field,
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*/
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DBUG_PRINT("debug", ("Base types are different, checking conversion"));
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+ if (Type_handlers.handler(source_type))
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+ DBUG_RETURN(false);
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