AI代码解释 List<String>tableOptionsStrings=createTable.getTableOptionsStrings();String tableCommentSql=null;int commentIndex=tableOptionsStrings.indexOf("COMMENT");if(commentIndex!=-1){tableCommentSql=String.format("COMMENT ON TABLE %s IS %s;",tableFullyQualifiedName,tableOptionsStrings.get(commentIndex...
this must be <= MEM_MAX_ALLOC_IN_BUF @return allocated, zero-filled storage */ UNIV_INLINE void *mem_heap_zalloc(mem_heap_t *heap, ulint n); /** Allocates n bytes of memory from a memory heap. @
columnIdentifier ::= sqlIdentifie pathLeg ::= member | arrayLocation | doubleAsterisk member ::= period ( keyName | asterisk ) arrayLocation ::= leftBracket ( non-negative-integer | asterisk ) rightBracket keyName ::= ECMAScript-identifier | double-quoted-string-literal doubleAsterisk ::= \...
/ array 26,455 Wait array used in primitives sync0rw.c ... / read-write 22,846 read-write lock for thread sync trx:事务的实现 File Name What Name Stands For Size Comment Inside File --- --- --- --- trx0trx.c Transaction / 50,480 The transaction trx0purge.c Transaction / ...
Can be true/false or an array of type names to keep as strings. (Default: false) debug: Prints protocol details to stdout. Can be true/false or an array of packet type names that should be printed. (Default: false) trace: Generates stack traces on Error to include call site of ...
For the table dump utility, schema specifies the schema that contains the items to be dumped, and tables is an array of strings specifying the tables or views to be dumped. The table dump includes the information required to set up the specified schema in the target MySQL instance, although...
直接提供字符串即可。还可以用JSON_Array和JSON_Object函数来构造 insert into t values(1,'{"num":1,"name":"abc"}') 注意事项: 1、JSON列存储的必须是JSON格式数据,否则会报错 2、JSON数据类型是没有默认值的 3、字段保持统一,存的时候就定好字段名和类型,做好注释并用文档记录 ...
InnoDB:A table object needed to retrieve an array of values from a multi-valued index column when computing the value of a generated column was unavailable. (Bug #32725063) InnoDB:A 4GB tablespace file size limit on Windows 32-bit systems has been removed. The limit was due to an incorrect...
‘TIME’, ‘String’, ‘Integer’, ‘SmallInteger’, ‘BigInteger’, ‘Numeric’, ‘Float’, ‘DateTime’, ‘Date’, ‘Time’, ‘LargeBinary’, ‘Binary’, ‘Boolean’, ‘Unicode’, ‘Concatenable’, ‘UnicodeText’, ‘PickleType’, ‘Interval’, ‘Enum’, ‘Indexable’, ‘ARRAY’, ‘...
headers=results.fields# <= that's an array of field names, in ordertypes=results.field_types# <= that's an array of field types, in orderresults.each(:as=>:array)do|row|# Each row is an array, ordered the same as the query results# An otter's den is called a "holt" or "cou...