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MySQL 8.0.40
Source Code Documentation
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MySQL 8.0.40
Source Code Documentation
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A JSON object (unordered set of key/value pairs). More...
#include <opt_trace.h>
Public Member Functions | |
| Opt_trace_object (Opt_trace_context *ctx, const char *key, Opt_trace_context::feature_value feature=Opt_trace_context::MISC) | |
| Constructs an object. More... | |
| Opt_trace_object (Opt_trace_context *ctx, Opt_trace_context::feature_value feature=Opt_trace_context::MISC) | |
| Constructs an object. More... | |
 Public Member Functions inherited from Opt_trace_struct | |
| void | end () |
| The exception to RAII: this function is an explicit way of ending a structure before it goes out of scope. More... | |
| Opt_trace_struct & | add_alnum (const char *key, const char *value) |
| Adds a value (of string type) to the structure. More... | |
| Opt_trace_struct & | add_alnum (const char *value) |
| Adds a value (of string type) to the structure. More... | |
| Opt_trace_struct & | add_utf8 (const char *key, const char *value, size_t val_length) |
| Like add_alnum() but supports any UTF8 characters in 'value'. More... | |
| Opt_trace_struct & | add_utf8 (const char *value, size_t val_length) |
| Variant of add_utf8() for adding to an array (no key) More... | |
| Opt_trace_struct & | add_utf8 (const char *key, const char *value) |
| Variant of add_utf8() where 'value' is 0-terminated. More... | |
| Opt_trace_struct & | add_utf8 (const char *value) |
| Variant of add_utf8() where 'value' is 0-terminated. More... | |
| Opt_trace_struct & | add (const char *key, Item *item) |
| Add a value (of Item type) to the structure. More... | |
| Opt_trace_struct & | add (Item *item) |
| Opt_trace_struct & | add (const char *key, bool value) |
| Opt_trace_struct & | add (bool value) |
| Opt_trace_struct & | add (const char *key, int value) |
| Opt_trace_struct & | add (int value) |
| Opt_trace_struct & | add (const char *key, uint value) |
| Opt_trace_struct & | add (uint value) |
| Opt_trace_struct & | add (const char *key, ulong value) |
| Opt_trace_struct & | add (ulong value) |
| Opt_trace_struct & | add (const char *key, longlong value) |
| Opt_trace_struct & | add (longlong value) |
| Opt_trace_struct & | add (const char *key, ulonglong value) |
| Opt_trace_struct & | add (ulonglong value) |
| Opt_trace_struct & | add (const char *key, double value) |
| Opt_trace_struct & | add (double value) |
| Opt_trace_struct & | add_null (const char *key) |
| Adds a JSON null object (==Python's "None") More... | |
| Opt_trace_struct & | add_utf8_table (const Table_ref *tab) |
| Helper to put the database/table name in an object. More... | |
| Opt_trace_struct & | add_select_number (uint select_number) |
| Helper to put the number of query_block in an object. More... | |
| Opt_trace_struct & | add (const char *key, const Cost_estimate &cost) |
| Add a value to the structure. More... | |
| bool | set_not_empty () |
| Informs this structure that we are adding data (scalars, structures) to it. More... | |
| const char * | check_key (const char *key) |
| Validates the key about to be added. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from Opt_trace_struct | |
| Opt_trace_struct (Opt_trace_context *ctx_arg, bool requires_key_arg, const char *key, Opt_trace_context::feature_value feature) | |
| ~Opt_trace_struct () | |
A JSON object (unordered set of key/value pairs).
Defines only a constructor, all the rest is inherited from Opt_trace_struct.
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inline |
Constructs an object.
Key is specified, so the object is the value of a key/value pair.
| ctx | context for this object |
| key | key |
| feature | optimizer feature to which this structure belongs |
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inline |
Constructs an object.
No key is specified, so the object is just a value (serves for the single root object or for adding the object to an array).
| ctx | context for this object |
| feature | optimizer feature to which this structure belongs |
1.9.2