• The -, +, and * operators use BIGINT arithmetic when both operands are integer values. This means that if you multiply two big integers (or results from functions that return integers), you may get unexpected results when the result is larger than 9223372036854775807. • DECIMAL[(M[,...
下面梳理用于解析 MySQL 数据类型的 type 语义组,其中涉及的 symbol 及 symbol 之间的关系如下(图中绿色节点为字符串字面值涉及节点、蓝色节点为其他语义组、灰色节点为其他终结符): 语义组:type type 语义组用于解析 MySQL 中的数据类型。 官方文档:MySQL 参考手册 - Chapter 13 Data Types 返回值类型:PT_type ...
$$= NEW_PTN PT_boolean_type(@$); } | BOOLEAN_SYM { $$= NEW_PTN PT_boolean_type(@$); } | CHAR_SYM field_length opt_charset_with_opt_binary { $$= NEW_PTN PT_char_type(@$, Char_type::CHAR, $2, $3.charset, $3.force_binary); } | CHAR_SYM opt_charset_with_opt_binary ...
BOOL, BOOLEAN These types are synonyms for TINYINT(1). A value of zero is considered false. Nonzero values are considered true: mysql> SELECT IF(0, 'true', 'false'); +---+ | IF(0, 'true', 'false') | +---+ | false | +---+ mysql> SELECT IF(1, 'true', 'false');...
BOOL, BOOLEAN These types are synonyms for TINYINT(1). A value of zero is considered false. Nonzero values are considered true: mysql> SELECT IF(0, 'true', 'false'); +---+ | IF(0, 'true', 'false') | +---+ | false | +---+ mysql...
BIT OPAQUE DATETIME TIME DATE BOOLEAN ARRAY OBJECT STRING INTEGER, DOUBLE NULL For JSON values of the same precedence, the comparisonrules are type specific: BLOB The first N bytes of the two values are compared where N is the number of bytes in the shorter value. If the first N...
and Operators 6.1 Arithmetic Operators 6.2 Mathematical Functions 7 Date and Time Functions 9 Full-Text Search Functions 9.1 Natural Language Full-Text Searches 9.2 Boolean Full-Text Searches 9.3 Full-Text Searches with Query Expansion 9.5 Full-Text Restrictions ...
A full-text search using the IN BOOLEAN MODE modifier would result in an assertion failure. (Bug #16927092) Full-text search on InnoDB tables failed on searches that used the + boolean operator. (Bug #17280122) 4-way deadlock: zombies, purging binlogs, show processlist, show binlogs. (...
is a value place holder for optional table fields.MySQL treats the NULL value differently from other data types. The NULL values when used in a condition evaluates to the false Boolean value.Performing arithmetic operations on NULL values always returns NULL results.The comparison operators such as...
using domain object model properties as query modeling elements. Comparisons between parameters and database column values can be specified, including equal, greater and less than, between, and in operations. These comparisons can be combined using methods corresponding to the Boolean operators AND, OR...