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SQL: default NULL for sys fields + misc fixes

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* sys fields are NULL by default (with exceptions, see comment about NOT_NULL_FLAG in #77);
* error codes renamed, messages cleared out;
* SHOW CREATE TABLE fixed;
* set_max() fix;
* redundant flag setters/getters removed;
* flags are set in sql_yacc.yy, redundant copy_info_about_generated_fields() eliminated.
This commit is contained in:
Aleksey Midenkov
2016-11-20 18:17:28 +00:00
parent b98f09fcbf
commit a1c36f2e15
17 changed files with 77 additions and 147 deletions
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4
include/mysql_com.h
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@@ -184,10 +184,10 @@ enum enum_indicator_type
#define FIELD_FLAGS_COLUMN_FORMAT_MASK (3U << FIELD_FLAGS_COLUMN_FORMAT)
#define FIELD_IS_DROPPED (1U << 26) /* Intern: Field is being dropped */
#define GENERATED_ROW_START_FLAG (1 << 27) /* autogenerated column declared with
#define VERS_SYS_START_FLAG (1 << 27) /* autogenerated column declared with
`generated always at row start`
(see II.a SQL Standard) */
#define GENERATED_ROW_END_FLAG (1 << 28) /* autogenerated column declared with
#define VERS_SYS_END_FLAG (1 << 28) /* autogenerated column declared with
`generated always at row end`
(see II.a SQL Standard).*/
#define VERS_OPTIMIZED_UPDATE_FLAG (1 << 29) /* column that doesn't support