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Code Activity

MDEV-7563 Support CHECK constraint as in (or close to) SQL Standard

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MDEV-10134 Add full support for DEFAULT

- Added support for using tables with MySQL 5.7 virtual fields,
  including MySQL 5.7 syntax
- Better error messages also for old cases
- CREATE ... SELECT now also updates timestamp columns
- Blob can now have default values
- Added new system variable "check_constraint_checks", to turn of
  CHECK constraint checking if needed.
- Removed some engine independent tests in suite vcol to only test myisam
- Moved some tests from 'include' to 't'. Should some day be done for all tests.
- FRM version increased to 11 if one uses virtual fields or constraints
- Changed to use a bitmap to check if a field has got a value, instead of
  setting HAS_EXPLICIT_VALUE bit in field flags
- Expressions can now be up to 65K in total
- Ensure we are not refering to uninitialized fields when handling virtual fields or defaults
- Changed check_vcol_func_processor() to return a bitmap of used types
- Had to change some functions that calculated cached value in fix_fields to do
  this in val() or getdate() instead.
- store_now_in_TIME() now takes a THD argument
- fill_record() now updates default values
- Add a lookahead for NOT NULL, to be able to handle DEFAULT 1+1 NOT NULL
- Automatically generate a name for constraints that doesn't have a name
- Added support for ALTER TABLE DROP CONSTRAINT
- Ensure that partition functions register virtual fields used. This fixes
  some bugs when using virtual fields in a partitioning function
This commit is contained in:
Michael Widenius
2016-06-29 09:14:22 +02:00
committed by Sergei Golubchik
parent 23d03a1b1e
commit db7edfed17
165 changed files with 5793 additions and 6325 deletions
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10
sql/sql_class.cc
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@ -5675,6 +5675,7 @@ int THD::decide_logging_format(TABLE_LIST *tables)
bool has_write_table_auto_increment_not_first_in_pk= FALSE;
bool has_auto_increment_write_tables_not_first= FALSE;
bool found_first_not_own_table= FALSE;
bool has_write_tables_with_unsafe_statements= FALSE;
/*
A pointer to a previous table that was changed.
@ -5775,11 +5776,14 @@ int THD::decide_logging_format(TABLE_LIST *tables)
if (table->lock_type >= TL_WRITE_ALLOW_WRITE)
{
bool trans;
if (prev_write_table && prev_write_table->file->ht !=
table->table->file->ht)
multi_write_engine= TRUE;
if (table->table->s->non_determinstic_insert)
has_write_tables_with_unsafe_statements= true;
my_bool trans= table->table->file->has_transactions();
trans= table->table->file->has_transactions();
if (table->table->s->tmp_table)
lex->set_stmt_accessed_table(trans ? LEX::STMT_WRITES_TEMP_TRANS_TABLE :
@ -5830,6 +5834,10 @@ int THD::decide_logging_format(TABLE_LIST *tables)
if (has_write_table_auto_increment_not_first_in_pk)
lex->set_stmt_unsafe(LEX::BINLOG_STMT_UNSAFE_AUTOINC_NOT_FIRST);
if (has_write_tables_with_unsafe_statements)
lex->set_stmt_unsafe(LEX::BINLOG_STMT_UNSAFE_SYSTEM_FUNCTION);
/*
A query that modifies autoinc column in sub-statement can make the
master and slave inconsistent.