pgsp_json_int.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * pgsp_json_int.h: Definitions for internal use for pgsp_json.c
   4  *
   5  * Copyright (c) 2012-2020, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
   6  *
   7  * IDENTIFICATION
   8  *        pg_store_plans/pgsp_json_int.h
   9  *
  10  *-------------------------------------------------------------------------
  11  */
  12
  13 typedef enum
  14 {
  15         PGSP_JSON_SHORTEN,
  16         PGSP_JSON_INFLATE,
  17         PGSP_JSON_TEXTIZE,
  18         PGSP_JSON_YAMLIZE,
  19         PGSP_JSON_XMLIZE,
  20         PGSP_JSON_NORMALIZE
  21 } pgsp_parser_mode;
  22
  23 typedef enum
  24 {
  25         S_Invalid,
  26         S_Plain,
  27         S_Sorted,
  28         S_Hashed,
  29         S_Mixed
  30 } pgsp_strategies;
  31
  32 typedef const char *(converter_t)(const char *src, pgsp_parser_mode mode);
  33 typedef void (setter_t)(node_vals *vals, const char *val);
  34
  35 typedef enum
  36 {
  37         P_Invalid,
  38         P_Plan,
  39         P_Plans,
  40         P_NodeType,
  41         P_RelationShip,
  42         P_ScanDir,
  43         P_IndexName,
  44         P_RelationName,
  45         P_FunctioName,
  46         P_CTEName,
  47         P_Schema,
  48         P_Alias,
  49         P_Output,
  50         P_MergeCond,
  51         P_Strategy,
  52         P_JoinType,
  53         P_Command,
  54         P_SortMethod,
  55         P_SortKey,
  56         P_GroupKey,
  57         P_GroupKeys,
  58         P_GroupSets,
  59         P_HashKeys,
  60         P_HashKey,
  61         P_Filter,
  62         P_JoinFilter,
  63         P_HashCond,
  64         P_IndexCond,
  65         P_TidCond,
  66         P_RecheckCond,
  67         P_Operation,
  68         P_SubplanName,
  69         P_Triggers,
  70         P_Trigger,
  71         P_TriggerName,
  72         P_TrgRelation,
  73         P_ConstraintName,
  74         P_Parallel,
  75         P_PartialMode,
  76         P_WorkersPlanned,
  77
  78         P_FunctionCall,
  79         P_StartupCost,
  80         P_TotalCost,
  81         P_PlanRows,
  82         P_PlanWidth,
  83         P_ActualStartupTime,
  84         P_ActualTotalTime,
  85         P_ActualRows,
  86         P_ActualLoops,
  87         P_HeapFetches,
  88         P_SharedHitBlks,
  89         P_SharedReadBlks,
  90         P_SharedDirtiedBlks,
  91         P_SharedWrittenBlks,
  92         P_LocalHitBlks,
  93         P_LocalReadBlks,
  94         P_LocalDirtiedBlks,
  95         P_LocalWrittenBlks,
  96         P_TempReadBlks,
  97         P_TempWrittenBlks,
  98         P_IOReadTime,
  99         P_IOWwriteTime,
 100         P_SortSpaceUsed,
 101         P_SortSpaceType,
 102         P_PeakMemoryUsage,
 103         P_OrgHashBatches,
 104         P_OrgHashBuckets,
 105         P_HashBatches,
 106         P_HashBuckets,
 107         P_RowsFilterRmvd,
 108         P_RowsIdxRchkRmvd,
 109         P_TrgTime,
 110         P_TrgCalls,
 111         P_PlanTime,
 112         P_ExecTime,
 113         P_ExactHeapBlks,
 114         P_LossyHeapBlks,
 115         P_RowsJoinFltRemvd,
 116         P_TargetTables,
 117         P_ConfRes,
 118         P_ConfArbitIdx,
 119         P_TuplesInserted,
 120         P_ConfTuples,
 121         P_SamplingMethod,
 122         P_SamplingParams,
 123         P_RepeatableSeed,
 124         P_Workers,
 125         P_WorkersLaunched,
 126         P_WorkerNumber,
 127         P_InnerUnique,
 128         P_TableFuncName
 129 } pgsp_prop_tags;
 130
 131 typedef struct
 132 {
 133         int       tag;                          /* Tag to identify words */
 134         char *shortname;                /* Property name for short-style JSON */
 135         char *longname;                 /* Property name for long(normal)-style JSON */
 136         char *textname;                 /* Property name for Text representation */
 137         bool  normalize_use;    /* True means this word to be used for
 138                                                            normalization, which makes difference of
 139                                                            plan-id */
 140         converter_t *converter; /* Converter function for the property name */
 141         setter_t  *setter;              /* Converter function for the property value */
 142 } word_table;
 143
 144 typedef struct
 145 {
 146         StringInfo      dest;                   /* Storage for parse result */
 147         pgsp_parser_mode mode;          /* Tells what to do to the parser */
 148         node_vals *nodevals;            /* Node value holder */
 149         char       *org_string;         /* What to parse */
 150
 151         /* Working variables used internally in parser */
 152         int                     level;                  /* Next (indent or object) level */
 153         Bitmapset  *plan_levels;        /* Level list for Plan objects */
 154         Bitmapset  *first;                      /* Bitmap set holds whether the first element
 155                                                                  * has been processed for each level */
 156         Bitmapset  *not_item;           /* Bitmap set holds whether the node name at
 157                                                                    the level was literally "Item" or not. */
 158         bool            remove;                 /* True if the current node is not shown in
 159                                                                  * the result */
 160         bool            last_elem_is_object; /* True if the last processed element
 161                                                                  * was an object */
 162         pgsp_prop_tags  section;        /* explain section under processing */
 163         pgsp_prop_tags  current_list; /* current list tag that needs special treat*/
 164         StringInfo work_str;            /* StringInfor for very-short term usage */
 165         char       *list_fname;         /* the field name of the current_list */
 166         char       *fname;                      /* Field name*/
 167         char       *wbuf;                       /* Working buffer */
 168         int                     wbuflen;                /* Length of the working buffer */
 169         int                     wlist_level;    /* Nest level of list for Grouping Sets */
 170         grouping_set *tmp_gset; /* Working area for grouping sets */
 171
 172         converter_t *valconverter;      /* field name converter for the current
 173                                                                  * element */
 174         setter_t    *setter;            /* value converter for the current element */
 175 } pgspParserContext;
 176
 177
 178 extern word_table nodetypes[];
 179 extern word_table strategies[];
 180 extern word_table propfields[];
 181
 182 extern void init_word_index(void);
 183 extern word_table *search_word_table(word_table *tbl,
 184                                                                                   const char *word, int mode);
 185 extern const char *conv_nodetype(const char *src, pgsp_parser_mode mode);
 186 extern const char *conv_operation(const char *src, pgsp_parser_mode mode);
 187 extern const char *conv_scandir(const char *src, pgsp_parser_mode mode);
 188 extern const char *conv_expression(const char *src, pgsp_parser_mode mode);
 189 extern const char *conv_relasionship(const char *src, pgsp_parser_mode mode);
 190 extern const char *conv_jointype(const char *src, pgsp_parser_mode mode);
 191 extern const char *conv_strategy(const char *src, pgsp_parser_mode mode);
 192 extern const char *conv_setsetopcommand(const char *src, pgsp_parser_mode mode);
 193 extern const char *conv_sortmethod(const char *src, pgsp_parser_mode mode);
 194 extern const char *conv_sortspacetype(const char *src, pgsp_parser_mode mode);
 195 extern const char *conv_partialmode(const char *src, pgsp_parser_mode mode);
 196
 197 extern bool run_pg_parse_json(JsonLexContext *lex, JsonSemAction *sem);
 198 extern void init_parser_context(pgspParserContext *ctx, int mode,
 199                                                                    char *orgstr, char *buf,int buflen);
 200 extern void init_json_lex_context(JsonLexContext *lex, char *json);
 201